1. No category

JORC REPORT
Küllstedt Exploration Licence
Area, Thuringia, Germany
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
Arnstaedter Strasse 28
99096 Erfurt
Germany
Phone: +49 361 3810 500
Fax:
+49 361 3810 505
E-Mail: mining@ercosplan.com
Web:
www.ercosplan.com
Managing Director: Dr Henry Rauche
This JORC REPORT contains
54
09
Client:
East Exploration Pty Ltd
Level 2, 350 Little Collins Street
Melbourne, Victoria 3000
Australia
Consultant:
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
Arnstaedter Strasse 28
99096 Erfurt
Germany
Project Reference:
EGB 12-043.N01
Effective Date:
31 January 2015
Erfurt, 31th March 2015
Dr Henry Rauche
Managing Director & C.E.O.
Pages
Appendices
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia,
Germany
Version:
00
External Revision:
00
This Report was prepared under the responsibility of
Jockel, Andreas
A quality and consistency check was made by
Rauche, Dr Henry
Page 2 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
Compliance Statement
The information in this report that relates to Exploration Targets, Exploration Results, Mineral
Resources or Ore Reserves is based on information compiled by Andreas Jockel, a Competent Person who is a Member of a ‘Recognised Professional Organisation’ (RPO), the European Federation of Geologists, and a registered “European Geologist” (Registration Number
1018) and Dr Henry Rauche, a Competent Person who is a Member of a ‘Recognised Professional Organisation’ (RPO), the European Federation of Geologists, and a registered “European Geologist” (Registration Number 729).
Andreas Jockel and Dr Henry Rauche are full-term employees of ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH (ERCOSPLAN).
ERCOSPLAN, Andreas Jockel and Dr Henry Rauche are not associates or affiliates of East
Exploration Pty Ltd, or of any associated company. ERCOSPLAN will receive a fee for the
preparation of this Report in accordance with normal professional consulting practices. This
fee is not contingent on the conclusions of this Report and ERCOSPLAN, Andreas Jockel and
Dr Henry Rauche will receive no other benefit for the preparation of this Report. ERCOSPLAN,
Andreas Jockel and Dr Henry Rauche do not have any pecuniary or other interests that could
reasonably be regarded as capable of affecting their ability to provide an unbiased opinion in
relation to the Küllstedt Exploration Licence Area.
ERCOSPLAN does not have, at the date of this Report, and has not had within the previous
years, any shareholding in or other relationship with East Exploration Pty Ltd or the Küllstedt
Exploration Licence Area and consequently considers itself to be independent of East Exploration Pty Ltd.
Andeas Jockel and Dr Henry Rauche have sufficient experience that is relevant to the style of
mineralisation and type of deposit under consideration and to the activity being undertaken to
qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Andreas Jockel and
Dr Henry Rauche consent to the inclusion in the report of the matters based on their information in the form and context in which it appears.
Page 3 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
EXECUTIVE SUMMARY
East Exploration Pty Ltd. (Melbourne, Australia) is in the process of developing of a potash project, which is located in the northern part of the
Federal State of Thuringia, Germany. For this reason, East Exploration
GmbH (EAST EXPLORATION), a wholly owned subsidiary of East Exploration Pty Ltd, was founded and registered in Munich, Germany, in 2014.
In a first step, East Exploration Pty Ltd has commissioned ERCOSPLAN
to compile a report in accordance with the JORC Code (2012, /10/) (effective date: 31 January 2015), including an Exploration Target estimate for
its Küllstedt Exploration Licence Area based on the available exploration
data.
ERCOSPLAN has its headquarters in Erfurt (Thuringia, Germany) and
has been involved in the mining activities in the South Harz Potash District for more than 60 years. During this period, numerous exploration and
underground mining projects were realised under the supervision of ERCOSPLAN. Therefore, ERCOSPLAN has a large archive with exploration
data and an extensive knowledge about the geological conditions within
the South Harz Potash District.
Introduction
EAST EXPLORATION holds the exploration licences for two large areas
in the southwestern edge of the South Harz Potash District. The Küllstedt
Exploration Licence Area extends over 24,164.55 ha, while the Gräfentonna Exploration Licence Area is 21,647.61 ha in size.
Küllstedt Exploration Licence Area is located in the northwestern part of
the Federal State of Thuringia, bordering the city of Mühlhausen to the
south. The country town of Dingelstädt is the largest settlement within the
Exploration Licence Area. The municipality of Küllstedt is located a few
kilometres south-southwest of it.
Property Description,
and Location
For the Küllstedt area, a historical resource estimate was made in 1964,
which resulted in 268.7 Mt K2O of Delta-1 and 43.6 Mt K2O of Delta-2
resources according to the 3. Kali-Instruktion for the East German Potash
Industry.
A further historical resource estimate in the region in 1980 resulted in
47.1 Mt total K2O of C2 resources according to the 4. Kali-Instruktion. For
all resource classes, resources were listed as carnallitite and sylvinite.
However, the areas, for which the estimates were made, only partly overlap with the Küllstedt Licence Exploration Area.
Historical Resource/
Reserve Estimates
Apart from the previous exploration and mining activities until the 1930s,
exploration was resumed again in the 1960s and 1970s to evaluate the
potential of potash production in the Küllstedt area. Even the construction
of a new potash plant was planned, but it was not realised due to the termination of potash production in the South Harz Potash District after the
German reunification in 1990.
In total, 34 drill holes have been drilled for potash in the Küllstedt Exploration Licence Area, while another eight holes are located close to the area.
For all drill holes, short logs are available, partially with K2O contents. The
detailed exploration reports with description of the working steps and the
results were not available to the authors of this JORC Report. However,
Exploration History and
Status of Exploration
Page 4 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
this information will be obtained in the coming weeks and subsequently
evaluated.
Based on ERCOSPLAN’s experience with the methods and control
mechanisms of the potash exploration in the South Harz Potash District, it
believes that the summarised drill logs and information on average grades
available thus far have a high degree of reliability. Nevertheless, an independent check based on the original documents is not possible at present.
The Küllstedt Exploration Licence Area, which is adjacent to the mining
property of Mühlhausen-Nohra, which is divided into the resource field
Keula to the north and resource field Küllstedt to the southeast and the
mining property of Volkenroda to the east, belongs to the South Harz
Potash District, which has a history of more than one hundred years of
potash exploration and mining ranging from the first deep hole exploration
in 1888 to the closure of the last mines in 1993.
Within the Küllstedt Exploration Licence Area, potash was mined between
1912 and 1924 from the Kaliflöz Stassfurt (z2KSt) at depths between
835 m and 860 m below the surface. The mines operational at that time
were the Felsenfest and Beberstedt-Hüpstedt mines. These mines were
located in the northernwestern part of the Küllstedt Exploration Licence
Area.
Adjacent Properties and
Mining Activities
Based on the geological model generated a value range for the Exploration Target was estimated: between 4,055 million and 5,141 million metric
tonnes of mineralised rock with a K2O content of between 7.2% and 25%.
This amounts to a K2O tonnage of between 292 million and 1,285 million
metric tonnes.
Exploration Target Estimates
The following recommendations are made for further project development:
(1) Application for permission to view and use detailed historical exploration reports as well as carry out tests on the still existing
sample material from these exploration drill holes. Based on the
data that becomes available, the JORC Report should be updated.
(2) The data from the historical drill holes should be checked via confirmation drilling in the Küllstedt Exploration Licence Area, which
allows an extraction of cores from the potash section for detailed
description and chemical assaying. Additionally, the confirmation
holes can be logged geophysically to cross-check the historical
data and correlate the results with those of the chemical analyses.
Recommendations
Page 5 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
LIST OF CONTENTS
1 Introduction
10 1.1 1.2 Scope of Work
Terms of Reference
10 10 2 Reliance on Other Experts
11 3 Property Descriptions, Location and Legal Status
11 3.1 3.2 Property Location
Property Title
11 13 4 Accessibility, Climate, Local Resources, Infrastructure and Physiography
13 4.1 4.2 4.3 4.4 Accessibility
Climate, Vegetation and Fauna
Physiography
Local Resources and Infrastructure
14 15 16 16 5 History
17 5.1 5.3 The History of Potash Exploration & Production in the South Harz Potash
District
The History of Exploration in the Küllstedt Exploration Licence Area
Description of Potash Exploration
5.2.1.1 Available Drill Holes
5.2.1.2 Drilling Technology
5.2.1.3 Drill Hole Logging,Sampling and Chemical Assaying
5.2.1.4 Sampling and Assay Procedure
5.2.1.5 Reporting of Results and Data Storage
5.2.1.6 Surface Seismics
Description of Oil & Gas Exploration
5.2.2.1 Available Drill Holes
5.2.2.2 Drilling Technology
5.2.2.3 Drill Hole Logging
5.2.2.4 Sampling and Assay Procedure
5.2.2.5 Quality Control Procedure
5.2.2.6 Reporting of Results and Data Storage
Historical Resource Estimates
17 19 19 20 23 23 23 24 25 25 25 26 26 26 27 27 27 6 Geological Setting and Mineralisation
30 6.1 6.2 6.3 Regional Geology
Local Geology of the Evaporites
Geological Development of the Potash Deposit in the South Harz Potash
District
Origin of the Potash Mineralisation
Tectonics of the Potash Deposit
Subrosion
6.3.3.1 Subrosion in the Zechstein
30 33 5.2 5.2.1 5.2.2 6.3.1 6.3.2 6.3.3 34 34 36 37 37 Page 6 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
6.4 6.4.1 6.4.2 6.5 6.5.1 6.3.3.2 Subrosion in the Triassic Overburden
Hydrogeology
Surface Waters
Groundwater
Mineralisation
Potash Distribution, Thickness and Grade
38 38 38 39 41 42 7 Deposit Type
42 8 Recent Exploration
43 9 Data Verification
43 9.1 Historical Data
43 10 Mineral Processing and Metallurgical Testing
43 11 Mining Concept
44 12 Processing Concept
44 13 Exploration Target Estimates
44 14 Adjacent Properties
45 15 Interpretation and Conclusions
45 16 Recommendations
46 Page 7 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
LIST OF FIGURES
Figure 1 Figure 2 Figure 3 Figure 4 Position of the Küllstedt Exploration Licence Area (Dark Grey
Area) in Relation to the Existing Potash Properties in the South
Harz Potash District (Light Grey Areas)
Map of the Küllstedt Exploration Licence Area Showing Access to
the Main Roads and the Railway System
Stratigraphic Succession in the Küllstedt Exploration Licence Area
Overview of the Lithostratigraphy Within the Investigation Area and
Classification into Aquifers and Aquitards
12 14 32 40 LIST OF TABLES
Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Average Monthly Temperatures and Precipitations for the Weather
Station Mühlhausen – Görmar (190 m Above Sea Level), Based
on Data Taken Between 12/2004 and 12/2014 (Wetterdienst.de,
2014, /3/)
Overview of Potash Drill Holes and Shafts Located Within the
Küllstedt Area (Easting and Northing in Gauss-Krueger
Coordinates)
Standard Procedures Applied for Sample Analysis by the
Laboratory of the Research Department of VEB Kombinat Kali
According to VEB (1980, /19/) and as Defined by the State
Authority
Overview of Oil and Gas Drill Holes located within the Küllstedt
Area (Easting, Northing in Gauss-Krueger Coordinates; VEB,
1966, /18/ & Drill Hole Logs). As Logs of the Last Two Holes Were
Not Available, No Coordinates or Depths Can Be Given
Prognostic Resource Estimate for Sylvinite, Carnallitite and
Potash-Bearing Salts (VVB Feste Minerale, 1964, /22/)
Resource Estimate with Resource Category and Tonnages (VEB,
1980, /19/)
15 21 24 26 28 29 Page 8 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
LIST OF APPENDICES
APPENDIX 1
Topographic Map Showing the Location and Available Infrastructure of the
Küllstedt Exploration Licence Area
APPENDIX 2
Copy of Official Licence Document for the Küllstedt Exploration Licence
Area
APPENDIX 3
Map of Available Drill Holes from Different Exploration Campaigns and
Shaft Sinking
APPENDIX 4
Geological Drill Hole Logs
APPENDIX 5
Isobath of the Top of the Potash-Bearing Horizon in the Küllstedt Exploration Licence Area and Main Potash Facies Distribution (According to
Seidel, 2003)
APPENDIX 6
Isopach Map for the Potash-Bearing Horizon in the Küllstedt Exploration
Licence Area
APPENDIX 7
K2O-Isograde Map for the Potash-Bearing Horizon in the Küllstedt Exploration Licence Area
APPENDIX 8
Geological Cross-Sections for the Küllstedt Exploration Licence Area
8.1 SSW-NNE Direction
8.2 WNW-ESE Direction
APPENDIX 9
Map of Properties Adjacent to the Küllstedt Exploration Licence Area
Page 9 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
1
Introduction
East Exploration Pty Ltd (Melbourne, Australia) is in the process of developing of a potash project, which is located in the northern part of the Federal State of Thuringia, Germany. For this
reason, East Exploration GmbH (EAST EXPLORATION), a wholly owned subsidiary of East
Exploration Pty Ltd, was founded and registered in Munich, Germany, in 2014. EAST EXPLORATION holds the exploration licences for two large areas in the southwestern edge of the
South Harz Potash District. The Küllstedt Exploration Licence Area extends over 24,164.55 ha,
while the Gräfentonna Exploration Licence Area is 21,647.61 ha in size.
In a first step, EAST EXPLORATION has commissioned ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH (ERCOSPLAN) to compile a Report in accordance with the
JORC Code (2012, /10/) (effective date: 31 January 2015), including an Exploration Target
estimate for its Küllstedt Exploration Licence Area based on the available exploration data.
ERCOSPLAN has its headquarters in Erfurt (Thuringia, Germany) and has been involved in
the mining activities in the South Harz Potash District since more than 60 years. During this
period, numerous exploration and underground mining projects were realised under the supervision of ERCOSPLAN. Therefore, ERCOSPLAN has a large archive with exploration data and
an extensive knowledge about the geological conditions within the South Harz Potash District.
For the preparation of this Report, EurGeol Andreas Jockel and EurGeol Dr Henry A M
Rauche served as Competent Persons as defined by the JORC Code (2012, /10/). Both Competent Persons have undertaken several site visits of the Küllstedt Exploration Licence Area.
The last site visit was conducted in December 2014.
Prior to preparation of this Report, historical documents, listed in Section 1.2, were evaluated
and a geological model was generated on the basis of these data and maps showing the distribution of the potash mineralisation, the thickness of the potash section and its K2O content
were prepared subsequently.
Recommendations and conclusions presented in this Report are based on the abovementioned historical data and the experience of the authors of this Report.
1.1
Scope of Work
The scope of work comprised the evaluation of historical data as presented in Section 1.2, the
subsequent generation of a geological model and an estimate of an Exploration Target based
on these data in compliance with the JORC Code (2012, /10/).
1.2
Terms of Reference
For the preparation of this Report, the following historical data were used:
§
Drill logs of the holes in the Küllstedt Exploration Licence Area and areas adjacent to it,
including the average grade of the potash-bearing horizon
§
Reports on historical resource estimates together with potash instruction guidelines of
the former East Germany
Page 10 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
§
Historical reports on geological, structural and hydrogeological investigations in the
Thüringer Becken
§
Historical maps showing the thickness distribution of the potash section, and the distribution of the salt facies in the South Harz Potash District
These data were available in ERCOSPLAN’s archive.
Furthermore, site visit reports, application forms and official licence documents were used.
2
Reliance on Other Experts
For the preparation of this Report, the authors have relied on historical reports, opinions, data
and statements not prepared under their supervision. These items will be hereinafter identified
as being either “third-party reports” or “historical information”. Specific citations are listed under
REFERENCES. Analytical procedures, personnel and facilities used by the previous evaluators were independent. It is known that the authors of those reports were not “Competent Persons” as defined by the JORC Code (2012, /10/). However, it is known to the authors of this
Report, partly by personal acquaintance, that the authors of those reports have sufficient experience in the exploration of and resource estimation for potash deposits as required by the
JORC Code (2012, /10/). They are, therefore, considered trustworthy and their work reliable.
As no samples and no core material from the historical exploration campaigns is preserved,
the results of the calculations (average grade) and drill hole logging could not be evaluated by
the authors of this Report. However, due to the abovementioned statements and the sample
cross-checking by external laboratories, the results of the mentioned investigations are considered reliable.
3
Property Descriptions, Location and Legal Status
This chapter gives an overview about the location of the Küllstedt Exploration Licence Area
(Section 3.1) and the land tenures held by EAST EXPLORATION (Section 3.2).
3.1
Property Location
The Küllstedt Exploration Licence Area is located at the northeastern edge of the Federal State
of Thuringia, Germany. In this region, parallel to the southern border of the Harz and Kyffhäuser mountains, potash salt from the Kalisalzflöz Stassfurt (Zechstein 2, Upper Permian, z2KSt)
was successfully used for the production of potash-magnesium fertilisers as well as further
products between 1896 and 1991.
Page 11 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
BWE Bischofferode
(LMBV)
# BISCHOFFERODE II
# BISCHOFFERODE I
# NEUBLEICHERODE
BWE
Bleicherode Mine
Kehmstedt-NW
(DEUSA)
BWE Kehmstedt
(DEUSA)
BWE Bleicherode
(NDH-E)
Solution Mine Kehmstedt
# KLEINBODUNGEN I
# KLEINBODUNGEN II
Bischofferode Mine
BWE Ohmgebirge
(BVVG)
# BLEICHERODE II
# BLEICHERODE I
# KRAJA II # KRAJA I
BWE Sollstedt
(NDH-E)
# SOLLSTEDT
# SACHSEN
# GEBRA # LOHRA
BWE
Mühlhausen-Nohra
(BVVG)
# NEUSOLLSTEDT
# HAIN I
# HAIN II
BWE Sondershausen
(GSES)
# IMMENRODE
Sollstedt Mine
Glückauf Sondershausen Mine
# LUDWIGSHALL
# GLÜCKAUF VI
# GLÜCKAUF V
# GLÜCKAUF I
Hüpstedt-Beberstedt Mine
# GLÜCKAUF II
# GLÜCKAUF IV
# FELSENFEST
# BEBERSTEDT
# GÜNTHERSHALL
Volkenroda Mine
# HÜPSTEDT
Exploration Licence Area
Küllstedt
(East Exploration)
# GLÜCKAUF III
Bewilligungsfeld
"Am Filsberg"
(GSES)
# VOLKENRODA
# PÖTHEN I
# PÖTHEN II
# SCHWARZBURG
BWE Volkenroda
(LMBV)
BWE
Mühlhausen-Nohra
(BVVG)
BWE Ebeleben
(BVVG)
Legend:
Exploration Licence Area
Gräfentonna
(East Exploration)
Exploration Licence Areas (Name and Owner)
Border of Existing Mining Licence Areas (Name and Owner)
Mined Areas (Name of the Mine and Owner)
Location of Shafts
Name of Shafts
#
0
10
Figure 1
20 km
Position of the Küllstedt Exploration Licence Area (Dark Grey Area) in Relation
to the Existing Potash Properties in the South Harz Potash District (Light Grey
Areas)
According to the geographical position, the deposit is called South Harz Potash District. Up to
3.5 million tonnes of K2O1 were produced annually in the South Harz Potash District. The extraction of the potash ore was mainly carried out by conventional mining. The most important
sites of mining and processing were (Figure 1):
§
“Glückauf” Sondershausen Mine and Potash Plant
§
Bischofferode Mine and Potash Plant
1
The grade of potassium products is usually expressed in K2O (potassium oxide; the conversion factor for KCl to
K2O is 0.6317).
Page 12 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
§
Sollstedt Mine and Potash Plant
§
Bleicherode Mine and Potash Plant
§
Volkenroda Mine Potash Plant
Besides these sites that utilised conventional underground mining, another site, the Kehmstedt
Brine Field (today DEUSA International GmbH), was established in the 1980s as a solution
mining operation.
The total size of the Küllstedt Exploration Licence Area is 24,164.55 ha (241.65 km²). The coordinates of the current border of the assessed area are listed in APPENDIX 1.
3.2
Property Title
In the Küllstedt area, previous ownerships are known for the union of the Hüpstedt-Beberstedt
and Felsenfest Potash Mines. Under the owner Winterhall AG, the twin mine shaft HüpstedtBeberstedt and the mine shaft Felsenfest were sunk and developed between 1909 and 1913
and a potassium chloride facility became operational in 1920. However, in 1924, mining activities came to an end (Raue, 1970, /11/). Since 1990, the Thüringer Landesbergamt is responsible for the closed mines and their ongoing supervision.
East Exploration Pty Ltd, which is based in Melbourne, Australia, filed a written application for
the granting of the commercial exploration of potash salts and rock salt in the “Küllstedt” claim
in compliance with Section 7, Paragraph 1 of the Bundesberggesetz (BBergG) on 04 July
2014. East Exploration Pty Ltd applied to transfer its application to East Exploration GmbH in
November 2014.
The exploration licence was granted in compliance with Sections 6 & 7 BBergG to East Exploration GmbH by the Thüringer Landesbergamt on 12 January 2015. The licence (Küllstedt Exploration Licence Area) is valid until 12 January 2020. The exploration licence is restricted to
the exploration of mineral resources in compliance with Section 3, Paragraph 3 BBergG, which
are rock salt, potash salts, magnesia and boron salts together with accompanying salts within
the deposit. Results of the exploration activities have to be reported to the Thüringer Landesbergamt annually and submitted to the authority at the latest by the expiry of the exploration
licence.
4
Accessibility, Climate, Local Resources, Infrastructure and Physiography
The accessibility, focusing on the principal town of the Küllstedt Exploration Licence Area,
Dingelstädt, (Section 4.1), the climate (Section 4.2), the physiography (Section 4.3) and the
local resources as well as the infrastructure (Section 4.4) of the Küllstedt Exploration Licence
Area will be described in this chapter.
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4.1
Accessibility
The principal town of the Küllstedt Exploration Licence Area is the country town of Dingelstädt
and it is easily accessible
§
Via the federal highway BAB 4/E 40 (Dresden – Frankfurt/Main)
•
From the south, further via the interstate roads B 84 – B 247
•
From the southwest, further via the interstate roads B 27 – B 249 – B 247 respectively.
§
Via federal highway BAB 38 (Göttingen – Leipzig) from north, then further via the interstate road B 247.
§
From the southeast, coming from the state capital of Erfurt, via the interstate roads B 4
– B 176 – B 247.
Different parts of the project area can be accessed via country roads from the roads mentioned
above. Beyond these roads, four-wheel drive vehicles should be used.
The rail network of the Deutsche Bahn AG between Göttingen (via Leinefelde), Erfurt and Gotha offers another access possibility.
The connections of the Küllstedt Exploration Licence Area to the main roads and the railway
network are shown in Figure 2.
Figure 2
Map of the Küllstedt Exploration Licence Area Showing Access to the Main
Roads and the Railway System
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4.2
Climate, Vegetation and Fauna
The Küllstedt Exploration Licence Area is located in the temperate climate zone of Central Europe with prevailing west winds. Mainly due to the shielding effect of highlands to the west
(Hessisches Bergland), the climate in the area is more continental than in the western and
northern parts of Germany. Accordingly, the area is located in one of the driest regions in the
country with comparably low total annual precipitation, accompanied by long dry periods, cold
winters and sunny climate without much wind (Table 1).
Table 1
Average Monthly Temperatures and Precipitations for the Weather Station
Mühlhausen – Görmar (190 m Above Sea Level), Based on Data Taken Between 12/2004 and 12/2014 (Wetterdienst.de, 2014, /3/)
Avg. Temperature
[°C]
Avg. Max.
Temperature
[°C]
Avg. Min.
Temperature
[°C]
Precipitation
[mm]
Rainy Days
[d]
January
0.6
3.1
-2.6
35
17
February
0.6
3.9
-3.0
25
14
March
4.3
9.1
-0.6
30
14
April
9.5
15.3
3.0
26
12
May
13.1
18.8
6.6
67
16
June
16.3
22.1
9.7
52
13
July
18.8
25.0
12.3
65
15
August
17.3
23.1
11.4
60
16
September
14.1
19.8
8.4
46
11
October
9.3
14.2
4.6
37
13
November
5.1
8.0
1.8
41
15
December
1.8
4.2
-1.1
42
19
The average annual temperature is 9.2°C, with July being the warmest month with an average
temperature of 18.8°C and a highest measured temperature value of 35.6°C. January and
February are the coldest months with an average temperature of 0.6°C and a lowest measured
temperature value in February of -21.8°C (Wetterdienst.de, 2014, /3/).
The total annual precipitation is 526 mm, with the highest precipitation occurring from May
(67 mm) to September (46 mm) (Wetterdienst.de, 2014, /3/).
Most of the area is agriculturally used. Only at higher elevations do broad-leaved or mixed forests exist.
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4.3
Physiography
The Küllstedt Exploration Licence Area is located at the west-northwestern margin of the Thüringer Becken at the upper reaches of the Unstrut River, which has its source at Kefferhausen,
several kilometres west of Dingelstädt, and flows through the area in southeastern direction.
This main watercourse is supplied by multiple tributary streams mainly coming from the west.
At the northern border of the Küllstedt area, close to country town of Deuna, the freshwater
reservoir Ahlenbach is located, which is supplied by the Ohne River. To the south, the rivers
Lutter, flowing in a southwestern direction at the municipalities of Wachstedt and Küllstedt, and
Luhne, flowing in a southeastern direction and joining at Mühlhausen with the Unstrut, are
larger surface waters.
Topographically, the Küllstedt area is dominated by a hilly landscape with the mountain ranges
of the Dün (to the northeast) and Oberes Eichsfeld, the latter with elevations of more than
500 m above sea level (e.g. Warteberg, which is 516 m above sea level and north of the town
of Flinsberg). To the southeast, the topographic elevation decreases to about 300 m above
sea level. The highest elevations in the area are the Winterberg (511 m above sea level), the
Kreuzebraer Höhe (484 m above sea level) east of the country town of Kreuzebra, the
Madeberg (498 m above sea level), the Hohe Berg (473 m above sea level) close to Küllstedt,
the Kirchberg (447 m above sea level), the Wingert (407 m above sea level), the Dünkopf
(436 m above sea level) north of Dingelstädt, as well as the Haßberg (428 m above sea level)
and the Eisberg (394 m above sea level) south of Dingelstädt. In the Dün area, the Wallingsberg (490 m above sea level), the Sonder (456 m above sea level), the Hellborn (493 m above
sea level), the Kalte Berg (476 m above sea level) and the Balzenberg (437 m above sea level) are distinct elevations. The area directly at the bank of the Unstrut River has elevations
between 260 m above sea level (west of the country town of Dachrieden) and 400 m above
sea level (source region of the Unstrut River at Kefferhausen). The country town Dingelstädt is
located about 335 m above sea level.
4.4
Local Resources and Infrastructure
Dingelstädt, the administrative headquarters of the municipalities of Helmsdorf, Kallmerode,
Kefferhausen, Kreuzebra and Silberhausen, is located about 15 km northwest of Mühlhausen
and covers an area of approx. 20 km² (65 km² for all municipalities) and is home to over 4,300
inhabitants (as of December 2013) (7,500 in all municipalities). On the next higher administrative level, the region belongs to the Thuringian district of Eichsfeld, with its headquarters in
Heilbad Heiligenstadt with 16,200 inhabitants, located about 15 km northwest of Dingelstädt.
Mühlhausen with an area of 86 km² and 33,000 inhabitants is the district town of the UnstrutHainich administrative district bordering to the southeast. Larger cities in the vicinity are Erfurt
(approx. 55 km to the southeast), Göttingen (approx. 60 km to the northwest) and Kassel (approx. 85 km to the west).
As many of the people living in the region were employed over several years in the mines of
the South Harz Potash District, 20 km to 25 km north of Küllstedt, vast experience with potash
is still available here.
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The electricity and water supply are possible via a well-developed network in the region. As
mentioned under Section 4.1, several roads and railways exist for access to the Küllstedt Exploration Licence Area. The closest civil airport is located in Erfurt and the small airfield, Göttingen-Heilbad Heiligenstadt, is located about 3 km north of Heilbad Heiligenstadt, close to the
federal highway BAB 38.
5
History
In the following sections the historical mining activities in the South Harz Potash District (Section 5.1) and the exploration activities of the Küllstedt area (Section 5.2) in particular are summarised briefly for later discussion of the results according to the present understanding of the
deposit from these available data.
5.1
The History of Potash Exploration & Production in the South
Harz Potash District
The exploration in the South Harz Potash District comprises several stages, which range from
the first deep hole exploration in 1888 to the closure of the mines and the end of potash exploration in the district in 1993.
In April 1888, an extensive exploration programme for potash was initiated by the Preussisches Ministerium für Öffentliche Arbeit in the northern administrative district Erfurt with a total of
66 exploration holes completed by the end of the programme in November 1897.
As the first exploration hole westwards of Nordhausen, close to Günzerode, only hit gypsum
and anhydrite as residual rocks at the time of its termination in November 1888, a second exploration hole (Kehmstedt 1) was drilled close to Kehmstedt, which hit 63 m of carnallitite at the
time of its termination in July 1889. To acquire a mining property large enough to operate at an
economically feasible level, it was necessary to drill as many exploration holes as possible.
Therefore, most of the following exploration holes were drilled without a geological or miningbased background but merely for the acquisition of the right to exploitation. The first mining
property of this kind was the Bleicherode Mine. However, based on the today’s accepted
standards, the level of exploration for the Bleicherode Mine, with an area of about 140 km²,
was insufficient for shaft sinking, but this is also valid for the foundation of other privately
owned mines which followed. Nevertheless, permission for shaft sinking in Bleicherode and the
construction of a salt processing facility was given.
The shafts of the “Glückauf” Mine in Sondershausen was sunk about 4.1 km from the only exploration hole (Glückauf 1) in the area, which hit potash in May 1892, without secured
knowledge about extent and structure of the potash deposit. In 1896, a second exploration
hole was drilled between Grossfurra and Sondershausen, followed by a third hole in 1910 to
get a better estimate of the mine claim. Subsequently, no exploration activities were conducted
for about three decades.
Continued exploration activities in the years after 1897 led to the foundation of new mines.
Around 1913, this phase of exploration and mine foundations came to an end, during which a
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total of 176 deep holes were drilled, of which 85 holes were drilled only for acquisition of the
right to exploitation without having hit the potash deposit.
After shaft sinking, the exploration activities were focussed on the operational exploration to
secure the supply of mineral resources, which was unproblematic in the first decades due to
the slow mining progress.
The operational exploration comprised initially only the drifting, which was very costly and,
therefore, followed the principles that new drifts were created with knowledge from deep hole
exploration combined with a prognostic estimate of the zone in front of the mining face, and
that drifts had a maximum benefit concerning mining activities (Bartl et al., 2003, /1/).
Mining drift exploration was conducted via drill and blasting or cutting, which allowed access to
the potash seam over more or less large distances, vital for the geological mapping of the drifts
and subsequent investigations, and easy sampling as well as the drilling of rising and deep
boreholes. The sampling, as the most important part of the exploration of the deposit, was incumbent upon experienced and qualified Bemusterungshauer and was planned and organized
by company geologists from the 1950s. From January 1968, their work basis was the “Bemusterungsanweisung” of the VVB Kali, which gave instructions about how to determine the seam
thickness, seam quality, principles of spatial quality distribution, how to acquire data to determine mine losses and dilution of the potash during mining, and how to acquire basic data for
reserve calculations.
In addition to the mining drift exploration, underground exploration drilling was conducted in
some mines since 1907, a combination advantageous for the exploration of the zone in front of
the mining face. Even though this kind of exploration drilling was conducted only sporadically
in the decades following 1907, it was by then an essential part of every exploration activity
within a mine and also used for special purposes, like in the Volkenroda Mine, where 282 of
such drill holes were sunk in 1931 and later to explore and mine the present crude oil.
After the Second World War, the deficit in exploration had to be reduced, which led to an intensified use of underground exploration drilling. With the complexity of the deposit increasing,
however, this drilling method offered the possibility of exploring the rocks of the complete second cycle of the Zechstein (Stassfurt Formation) until the base of the Basalanhydrit (z2ANa)
from one drilling site by drill hole deviation. Furthermore, the improved drilling technique allowed drill hole lengths between 100 m and 1,000 m and the type of sampling (core or cutting
sampling) could be changed.
For a better supervision of all mines of the VEB Kombinat Kali that were conducting underground exploration drilling, a central drilling group at the “Glückauf” Sondershausen Mine was
founded in 1971, which had the lead in terms of technology and safety, and was responsible
for the planning and procurement of drilling equipment and its maintenance. At that time,
close-range drilling was introduced into the process of underground exploration activities,
based on the principle that drilling can be conducted fast in every location, at any given angle
until a depth of 100 m and with a drill hole diameter of up to 40 mm without the need for complex safety devices. In the VEB Kalibetrieb “Südharz”, underground exploration and closerange drilling were increasingly conducted, reflected by the drilling metres, which increased in
number from a total of about 40,000 m in 1979 to a total of about 99,770 m in 1988.
Since exploration holes drilled from the surface always reduce the mineable volume of a deposit due to the safety pillars required around each of such holes in a mine, drilling methods
starting underground, as discussed above, were usually used. However, at the end of the
1950s and at the beginning of the 1960s, deep hole drilling, in combination with information
from historical holes, was used again to determine the extensive mineral salt distribution within
the different deposit areas. Amongst others, the Küllstedt field was part of this programme between 1961 and 1965 with seven drill holes and later again between 1975 and 1976 with 16
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holes as part of a prospection. Between 1976 and 1978, activities were again resumed as part
of a preliminary exploration, but at this time under consideration of the latest knowledge about
the deposit.
In the 1950s and 1960s, an internal company standard for processing of historical and recent
exploration data was established in the mines of the South Harz Potash District to evaluate
several parameters of the deposit, such as its thickness distribution and structure, which was
missing during the years before. Until then, the geological documentation in the mines was
prepared in different degrees of detail, depending on which group of companies the individual
mine was affiliated with. In 1964, a framework was set for the geological documentation from
which the necessary step for the processing could be derived. Later in the 1980s, the creation
and use of mine plans was considered necessary.
Potash exploration in the South Harz Potash District came to an end with the closure of the
Bleicherode, Sollstedt und Volkenroda Mines in 1990, “Glückauf” Sondershausen Mine in 1991
and Bischofferode in 1993. Most of the geological documentation was incomplete at the end of
the mining activities as it was handed over to the trust company “Gesellschaft zur Verwahrung
und Verwertung von stillgelegten Bergwerkbetrieben GmbH”.
Apart from potash exploration, drill holes for oil and gas as well as carbonate (not detailed further in this Report) exploration were also drilled.
5.2
The History of Exploration in the Küllstedt Exploration Licence Area
Exploration activities in the Küllstedt Exploration Licence Area between 1890 and 1990 targeted two commodities: potash and natural gas. Holes drilled during that time were focussed on
either one of the two commodities, which explain the low degree of detail with regard to the
documented Kaliflöz Stassfurt (z2KSt) in the holes sunken for natural gas exploration until
1961. However, since most documents about these holes are incomplete or missing (VEB,
1980, /19/), they are of no importance for this report.
The following sections provide a detailed overview about the historical exploration activities
conducted in the Küllstedt Exploration Licence Area.
5.2.1
Description of Potash Exploration
Until 1961, almost nothing was known about the Kaliflöz Stassfurt (z2KSt) in the Küllstedt Exploration Licence Area, except for the Hüpstedt-Beberstedt and Felsenfest Mines and Mühlhausen the natural gas field (VEB, 1980, /19/). Both mines were operational between 1912 and
1924 within a total area of 1,440,000 m² with longwall and room-and-pillar mining as the predominantly applied mining techniques (Raue, 1970, /11/). To date, this remains the only mining
activity in the project area.
Exploration in the Küllstedt area began in 1890 and resumed around the closed Felsenfest and
Hüpstedt-Beberstedt Mines (cf. Figure 1) and along the southern border of the Leinefeld anticline in the 1930s. During these years, exploration for oil and gas in the south as well as adjacent to the southeast of the Küllstedt Exploration Licence Area was also conducted. In the late
1950s, exploration for potash, carbonate and oil and gas was again resumed, mainly along an
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east-west trending central belt and in the northeast of the area. The exploration activities from
that time were conducted to evaluate the resource potential of the GDR in the Thüringer Becken, which continued in the case of potash as presented hereinafter.
Based on the drilling results, it was assumed until 1961 that the sylvinite occurrence in the
BWE Volkenroda (cf. Figure 1) would extend into the Mühlhausen natural gas field, whereas in
the Hüpstedt-Beberstedt and Felsenfest mine claims (cf. Figure 1), mainly carnallitite with subordinate sylvinite occurrences were encountered.
Since the extension of sylvinite was assumed west of the drill holes Kal Gte 1/1961 between
Garterode and Deuna and Kal Vll 1/1961 near Vollenborn, the first stage of prospecting works
for sylvinite was initiated in 1961. These widespread drill holes extended the knowledge about
the subrosional area of the Leinefeld anticline and gave another indication for the southern
boundary of the carnallitite extent to the south of it. The evaluation of these works led to their
continuation between 1962 and 1965 with the result that there are more sylvinite and sylvinite
together with carnallitite salt outcrops.
Apart from the holes drilled for sylvinite, the holes targeting natural gas extended the
knowledge about the Kaliflöz Stassfurt (z2KSt) as well. Unfortunately, only a few of these holes
were cored in the potash section, documented and sampled with the methods used at that
time. Other such holes drilled with a core barrel near the BWE Volkenroda (cf. Figure 1) had
almost complete core loss. A second interpretation of geophysical drill hole logs from these
wells, however, was only done later within context of the “Objekt Kali Küllstedt” (Küllstedt Potash Property), which showed the extension of the carnallitite from the north into the Mühlhausen natural gas field in combination with later results.
The deep hole exploration temporarily came to an end in 1966 with a state of knowledge that
allowed the calculation of prognostic potash reserves with an estimated percentage of sylvinite
for a larger area. The small progress in knowledge about the deposit by 1972 was summarised
and the result led to an estimation of Delta-1 potash reserves as sylvinite, which allowed the
prospecting work to be continued.
The directive for the start of the exploration work for the “Objekt Kali Küllstedt”, which was divided into two prospection drilling phases and one exploration drilling phase, was mainly the
drill holes that had encountered sylvinite or mixed salt. This led to the assumption of an eastwest trending sylvinite area with potential and a north-south extent between Küllstedt and
Dingelstädt on top of the Eichsfeld swell as the most optimistic guess. Further to the south,
sylvinite was not expected, contrary to later knowledge, while its extent west of the BWE
Volkenroda was not doubted. This proved wrong according to later knowledge.
Knowledge about the development of the remaining Zechstein formations and the Triassic cap
rock as well as the tectonic structure of the area was only extended in terms of details.
Technical details about the drilling and seismic exploration as well as the analytical procedure
for samples from the drill holes will be provided in the following sections.
5.2.1.1
Available Drill Holes
As mentioned in Section 5.2.1, potash exploration within the Küllstedt Exploration Licence Area was mainly concentrated along a central east-west trending section with an extension towards the north and south (cf. APPENDIX 3). No drill holes were drilled in the northwestern
part of the area and only two single drill holes are available in the south extension of the Küllstedt area.
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Altogether, 28 potash exploration drill holes and three shafts were sunk from the surface within
the Küllstedt Exploration Licence Area. Furthermore, six drill holes for oil and gas exploration
were sunk. The potash exploration was subdivided into a
§
First exploration phase between 1900 and 1912 (Felsenfest 1, 3, 5 to 13, 17, and 18 as
well as the Felsenfest, Hüpstedt and Beberstedt shafts)
§
Second exploration phase between 1930 and 1939 (Felsenfest 6 to 18)
§
Prospection phase between 1960 and 1976 (Vollenborn 1/60, Gerterode 1/61, Beberstedt 1/61, Küllstedt 1/62, Sollstedt 1/62, Wachstedt 1/63, Küllstedt 2/64, Kaiserhagen 2/75, Horsmar 2/75, Bickenriede 1/75, Bickenriede 2/75,)
§
Preliminary exploration phase between 1976 and 1978 (Eigenrode 2/76, Bickenriede
4/76, Eigenrode 2/76, Eigenrode 3/77, Kaiserhagen 4/77, Zella 3/77).
This exploration phase proved the occurrence of mixed salt and carnallitite further to
the south in the Küllstedt area, as was expected, as well as the occurrence of glaseritic
sylvinite in the south of the Küllstedt area.
No information is presently available about any underground drilling or geophysical exploration.
An overview of the 34 potash exploration drill holes and three shafts that were drilled within the
Küllstedt area is given in Table 2, whereas an overview map as well as a summarised record
of the available geological logs within and adjacent to the Küllstedt area are given in APPENDIX 3 and APPENDIX 4 respectively.
Table 2
Overview of Potash Drill Holes and Shafts Located Within the Küllstedt Area
(Easting and Northing in Gauss-Krueger Coordinates)
Drill Hole
Easting
Northing
Felsenfest 1
4389830.1
5692703.4
294.0
532.0
z2ANa
Felsenfest 3/1906
4389921.6
5690047.3
477.0
883.5
z2ANa
Felsenfest 5
(Deutschland 17)
4388608.8
5689760.7
460.0
853.5
z2NA
Felsenfest 6
(Deutschland 15)
4390650.0
5691340.1
No data
625.0
z2D
Felsenfest 7
(Deutschland 16)
4392950.0
5691520.1
354.0
561.6
z2KSt
Felsenfest 8
(Deutschland 18)
4387583.6
5691614.3
360.0
639.0
z2NA
Felsenfest 9
(Deutschland 24)
4390780.1
5692190.0
314.0
522.1
z2NA
4390700.1
5691370.1
366.0
584.9
z2NA
Felsenfest 10
(Deutschland 19)
Elevation [m
above sea
level]
Total
Depth
[m]
Total Depth in
Stratigraphic
Horizon
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Drill Hole
Easting
Northing
Felsenfest 11
(Deutschland 20)
4392970.0
5691470.0
356.0
633.0
z2NA
Felsenfest 12
(Deutschland 23)
4389415.4
5691619.4
352.0
551.0
z2NAr
Felsenfest 13
(Deutschland 21)
4389505.4
5691615.7
356.0
645.0
z2CA
Felsenfest 17
(Deutschland 25)
4392550.1
5693540.0
335.0
553.2
z2NA
Felsenfest 18
(Deutschland 22)
4391790.0
5689340.0
461.0
882.0
z2NA
Gernterode 1/1961
4394910.6
5693901.9
307.4
560.1
z2ANa
Vollenborn 1/1960
4395973.4
5693237.6
361.0
672.1
z2ANa
Schacht Felsenfest 1909/1
4389249.3
5690004.8
477.1
869.5
z2NA
Schacht Hüpstedt
4390290.1
5689830.1
473.9
880.0
z2NA
Schacht Beberstedt 1910
4390363.0
5689788.0
474.2
880.0
z2NA
Beberstedt 1/1961
4388266.3
5685439.2
341.3
965.5
z2ANa
Eigenrode 3/1977
4390358.5
5686170.6
370.0
1,008.0
z2ANa
Wachstedt 1/1963
4377563.5
5685943.3
479.4
901.4
z2ANa
Küllstedt 1/1962
4381685.3
5683696.0
398.0
923.6
z2ANa
Küllstedt 2/1964
4379817.8
5684892.2
466.3
953.9
z2ANa
Bickenriede 1/1975
4384003.9
5682397.4
360.8
951.0
z2ANa
Bickenriede 4/1976
4383931.0
5680123.3
328.6
933.7
z2ANa
Bickenriede 2/1975
4385911.5
5682052.2
304.5
1,036.8
Eigenrode 2/1976
4392619.1
5686039.9
427.4
994.5
z2ANa
Horsmar 2/1975
4389821.6
5682887.6
301.4
988.7
z2ANa
Kaisershagen 2/1975
4393876.9
5685066.1
404.9
1,210.5
Kaisershagen 4/1977
4395265.9
5685488.2
413.7
995.9
Sollstedt 1/1962
4394213.8
5687171.0
468.5
1,011.0
Zella 3/1977
4387108.3
5684430.5
285.7
949.5
z2ANa
Mühlhausen 1
4388402.3
5674546.0
369.4
1,002.7
z1ANc
Elevation [m
above sea
level]
Total
Depth
[m]
Total Depth in
Stratigraphic
Horizon
z1AN/z1ANa
z1AN/z1ANa
z2ANa
z1AN/z1ANa
Nearly all drill holes were drilled through the Kaliflöz Stassfurt (z2KSt) into the underlying
Basalanhydrit/Stassfurt Karbonat (z2ANa/z2CA) or the Stassfurt Steinsalz/Decksteinsalz
(z2NA/z2NAr), except four drill holes that did not completely intersect the potash seam
(Felsenfest 7) or were drilled into the Werra-Anhydrit (z1AN) of the Werra Formation below the
Stassfurt Formation (Bickenriede 2, Kaisershagen 2 and Sollstedt 1).
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5.2.1.2
Drilling Technology
The drilling technology is described in the detailed exploration reports, which are stored in archives to which ERCOSPLAN does not yet have access. Therefore, they are not available yet.
However, the potash exploration was basically done by drilling and the whole evaporite section
was cored. In the case of drill holes for natural gas and crude oil, this section was cored only
rarely.
5.2.1.3
Drill Hole Logging,Sampling and Chemical Assaying
The methods for drill hole logging, sampling and chemical assaying are described in the detailed exploration reports, which are stored in archives to which ERCOSPLAN does not yet
have access. Therefore, they are not available yet.
The procedures conducted followed strict rules on the execution and checking as well as the
evaluation of the results. Quality control was ensured by independent state institutions. According to the knowledge of the authors of this Report, all exploration work conducted later
than 1950 was completed with detailed reports, which were quality-checked by the abovementioned institutions.
5.2.1.4
Sampling and Assay Procedure
The sample preparation and analysis was done in the laboratory of the VEB Kombinat Kali’s,
research department according to standard procedures (Table 3) developed by the state authority and as detailed in Döhner (1986, /6/).
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Table 3
Standard Procedures Applied for Sample Analysis by the Laboratory of the
Research Department of VEB Kombinat Kali According to VEB (1980, /19/)
and as Defined by the State Authority
Sample Preparation/Type
of Analysis
Applied Standard
Chemical analysis
Crystallographic investigations
KALI 97-003/01
Analysis of potassium by flame
photometry.
KALI 97-020/1 and KALI 97-020/02
Applied if K2SO4 was analysed.
Bromine analysis
Iron analysis
Gas analysis
Remarks
KALI 97-5
—
TGL 12.126
—
“Analysenvorschrift zur Bestimmung mineralgebundener und freier Gase
mittels Schwingmahlung (Trockendegasierung) und gaschromatographischer Analyse” (standard for the determination of mineral-bound and
free gases by oscillating milling (dry de-gasing) and gaschromatographic analysis).
KALI 97-021
Determination of degree of
deposit development for
Sylvite and Glaserite
—
Clay mineralogical investigation
Dilution of sample with tap water and shaking for 96 hours with NaCl
(15%) solution to remove Gypsum and Anhydrite. Subsequently, X-ray
analysis of the CaSO4-reduced solution residue followed. For comparison, clay samples were elutriated, dried and analysed in the same way.
All analyses were conducted by means of X-ray counter-tube goniometers, the evaluation was done semi-quantitatively.
Thin section analysis
Only transmitted light investigation in
bright field was conducted.
5.2.1.5
Nomenclature according to Stolle
& Döhner (1970, /15/).
Reporting of Results and Data Storage
All summarised results from geological descriptions, chemical assaying and geophysical logging are listed in the exploration report for the Küllstedt area (VEB, 1980, /19/). For a comprehensive interpretation of the results, drill holes from potash and oil and gas exploration outside
the Küllstedt area were evaluated as well. Nevertheless, only results from the drill holes inside
the Küllstedt area were reported in the exploration report.
The detailed documentation, such as drilling reports, geophysical logging data, photographs,
technical drilling record, interim and final reports, were stored in the drill archive of the VEB
GFE Freiberg, BT Jena (VEB, 1980, /19/) and are presently part of the archives of regional
authorities.
Copies of the data related to the potash section of the drill holes, important technical documentations and protocols about chemical and thin section analyses were additionally stored by the
research department of the state holding potash company (VEB Kombinat Kali, DB Forschung)
(VEB, 1980, /19/).
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Due to comprehensive drill core documentation by description, photographs and analysis as
well as nearly complete use of the drill core material for analytical purposes, no core material
has been left for storage (VEB, 1980, /19/). Solely
§
Reference samples from the drill holes Kaisershagen 4/1977 (reference samples of
Zechstein 3 and 4) and almost the complete profile of the Zechstein 3 to 4 from Ammern 1/1976
as well as
§
Pulverized samples from the chemical analysis and thin sections
were stored in the central core storage archive in Bernau and by the VEB Kombinat Kali respectively (VEB, 1980, /19/).
5.2.1.6
Surface Seismics
Between 01 July 1975 and 26 March 1976, the VEB Geophysik conducted within the context of
the “Objekt Kali Küllstedt” a geophysical survey by means of reflection seismics on a total section length of 244.4 km with a measuring density of nine seismograms per kilometre and a profile density of 0.8 km/km². The corresponding report is dated 28 October 1976. Objectives of
the survey campaign were to obtain detailed knowledge about the tectonics of the area, the
determination of the subrosional margin of the evaporite section and the detection of the
paleogeographical differentiation of the area by changes in the thicknesses, mainly of the first
and second cycle of the Zechstein.
The results of the seismic campaign are detailed in the corresponding reports, which are not
available at the moment.
5.2.2
Description of Oil & Gas Exploration
No details about the oil and gas exploration phase are currently available to the authors of this
Report, apart from coordinates, elevations and final depths of the drill holes as listed in Section
5.2.2.1.
5.2.2.1
Available Drill Holes
The five drill holes listed in Table 4 were drilled for oil and gas exploration in the central,
southern and northeastern part of the Küllstedt area in 1934 and in the 1960s. Only three of
the five holes are known to have penetrated the Stassfurth evaporites into the Werra-Steinsalz
(z1NA) and the Unterer Werra-Anhydrit (z1ANa). No detailed core descriptions or analytical
results are available at present for these drill holes. Stratigraphic interpretation is solely available from interpretation of the geophysical drill hole logging (cf. Section 5.2.2.3).
For more detailed records of drill holes for oil and gas exploration within and adjacent to the
Küllstedt area, see APPENDIX 3 and APPENDIX 4.
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Table 4
Overview of Oil and Gas Drill Holes located within the Küllstedt Area (Easting,
Northing in Gauss-Krueger Coordinates; VEB, 1966, /18/ & Drill Hole Logs).
As Logs of the Last Two Holes Were Not Available, No Coordinates or Depths
Can Be Given
Drill Hole
Easting
Northing
Sollstedt 1/1962
4394213.8
5687171.0
468.5
1,011.0
z1AN/z1ANa
Sollstedt 2/1962
4392032.5
5688907.2
450.3
968.2
z1AN/z1ANa
Küllstedt (E1)/1966
4384187.9
5684003.3
410.9
985.3
z1AN/z1ANa
Küllstedt (E2)/1966
unknown
unknown
unknown
unknown
unknown
Stadtwald 1/1934
unknown
unknown
unknown
unknown
unknown
5.2.2.2
Elevation [m
above sea
level]
Total
Depth
[m]
Total Depth in
Stratigraphic
Horizon
Drilling Technology
No details about the drilling technology for the oil and gas exploration in the Küllstedt area are
presently known to the authors of this Report.
5.2.2.3
Drill Hole Logging
The geophysical logging data currently available to the authors of this Report are limited to the
record of the natural gamma, whereupon stratigraphic interpretations as well as K2O content
correlations were conducted as reported by VEB (1966, /18/). Furthermore, it has been documented that interpretations and correlations were additionally cross-checked by geologists,
comparing the logging results with results from other drill holes. It is therefore assumed that
the available data interpretation is reliable.
Records of drill hole deviation data are reported to be available for single drill holes. Nevertheless, these data are currently not available to the authors of this Report. It is assumed that the
drill holes are more or less vertical.
5.2.2.4
Sampling and Assay Procedure
It is known that cores of the potash section were obtained for single drill holes (VEB, 1966,
/18/). Nevertheless, neither a documentation of the drill cores nor the purpose of the sampling
or analytical results is presently available to the authors of this Report.
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5.2.2.5
Quality Control Procedure
No independent verification of the natural gamma logging results from the oil and gas exploration drill holes was possible. However, the interpretation of the natural gamma logging regarding the reported K2O content was done according to standards of the state reserve commission
and verified by exploration geologists.
5.2.2.6
Reporting of Results and Data Storage
The results from the geophysical natural gamma logging of the drill holes are stored in the archive of GDF Suez in paper format. No further documentation is presently available.
5.3
Historical Resource Estimates
The first historical resource estimate known to the authors of this Report is based on calculations of prognostic reserves according to the 3. Kali-Instruktion with values given in VVB Feste
Minerale (1964, /22/) and presented in Table 5. The calculations are based on historically defined subfields in the mentioned report, which do not coincide entirely with the extent of the
Küllstedt Exploration Licence Area. The Delta-2 potash salts in subfield 1 are mixed salt.
The values of the resource calculation of 1980 (VEB, 1980, /19/) are presented in Table 6 with
a different resource class, which complies with the 4. Kali-Instruktion. The subfields presented
in this table neither coincide with the subfields from the report of 1964 (VVB Feste Minerale,
1964, /22/) nor with the extent of the Küllstedt Exploration Licence Area. The overlap of areas
is given for those defined in the report of 1964 (VVB Feste Minerale, 1964, /22/) with those
defined in the report of 1980 (VEB, 1980, /19/).
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Table 5
Prognostic Resource Estimate for Sylvinite, Carnallitite and Potash-Bearing Salts (VVB Feste Minerale, 1964, /22/)
Subfield
Resource Category
Area
[m²]
Thickness
[m]
Volume
[m³]
Density
[t/m³]
Percentage of Potash-Bearing Area
[%]
Salt Mass
[t]
K 2O
[%]
K 2O
[t]
1
Delta-2 (potashbearing salts)
44,500,000
8.0
356,000,000
2.0
60
427,200,000
10.0
42,720,000
2
Delta-1 (sylvinite)
56,000,000
5.0
280,000,000
2.2
10
61,600,000
22.0
13,500,000
Delta-1 (carnallitite)
56,000,000
20.0
1,120,000,000
1.8
90
1,800,000,000
10.3
185,400,000
3
Delta-2 (sylvinite)
84,000,000
4.0
336,000,000
2.2
10
7,500,000
12.0
900,000
4
Delta-1 (sylvinite)
64,500,000
5.0
322,500,000
2.2
58
411,400,000
15.0
61,700,000
Delta-1 (carnallitite)
64,500,000
10.0
645,000,000
1.8
7
81,000,000
10.0
8,100,000
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Table 6
Resource Estimate with Resource Category and Tonnages (VEB, 1980, /19/)
Field
Overlapping with
Keula
Subfield 2 with over
an area of 2.2 km²
(approx. 10%)
Resource
Category
Total Mass
[t]
Total K2O
[t]
Soluble K2O
[t]
Carnallite
[t]
Glaserite
[t]
C2
96,800,000
13,300,000
13,100,000
14,100,000
—
C2
234,000,000
33,800,000
29,400,000
8,510,000
24,200,000
Subfield 4 with over
an area of 3.8 km²
(approx. 17%)
Mühlhausen
Subfield 4 with over
an area of 23.0 km²
(approx. 47%)
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The resource estimates were prepared and checked by geologists who had worked for several
years in potash mining. It is therefore assumed that the estimates are accurate (VVB Feste
Minerale, 1964, /22/; VEB, 1980, /19/).
6
Geological Setting and Mineralisation
In the following sections, a summary will be given of the regional geology of the South Harz
Potash District and the local geology as well as the hydrogeology of the Küllstedt Exploration
Licence Area, together with potash mineralisation characteristics, in terms of type, thickness,
depth and grade distribution encountered.
6.1
Regional Geology
The geological development of the South Harz Potash District began with the deposition of
primary evaporites in the Zechstein Ocean during the Permian, which were subject to numerous conversion processes in the following millions of years due to geotectonical events as well
as ascending and descending solutions. The result was a characteristic deformation of these
chemical sediments, which was also the main reason for the local subrosion of the evaporite
formation (Zechstein Cycle 1 to 4) caused by water inflow from the overlying rocks (Bartl et al.,
2003, /1/).
Geologically located in the northwestern part of the Thüringer Becken, the South Harz Potash
District is an approx. 85 km long, SE-NW trending structure, which follows the regional geological structures. The overburden layers of the evaporite formation show a general dip of less
than 10° towards the south, accompanied by fracture faults with the same trend as the potash
district and gently undulating flexures of the rock layers of the cap rock. The so-called FinneStörungis is of trans-regional importance as it separates the Thüringer Becken from the Hermundurische Scholle. The fault structures developed during the Mesozoic, primarily as normal
faults with offsets in the range of about one hundred metres. During the Late Cretaceous, these structures where overprinted compressively. Towards the west, the influence of these SENW trending faults declines and NNE-SSW orientated structures appear, which extend as the
Ohmgebirge-Grabenzone into the Küllstedt Exploration Licence Area.
The Zechstein evaporites of the South Harz Potash District have developed four large cycles
(Werra, Stassfurt, Leine and Aller Formation) (Figure 3) with only the second oldest cycle
(Stassfurt Formation) containing potash minerals, which were and are still being mined. Since
the district took a position relatively close to the basin’s rim during the time of the Zechstein,
the overlying three cycles (Ohre, Friesland and Fulda Formation) (Figure 3) did not develop
salt minerals. Generally, the salinar formation is overlain by rocks of the Buntsandstein (Figure
3).
The Küllstedt Exploration Licence Area is located adjacent south to the basin border of the
South Harz Potash District, where the Leine-Steinsalz (z3NA) and Stassfurt-Steinsalz (z2NA,
cf. Figure 3) are represented by anhydritic-clayey equivalents in the Gotha-Creutzburg area.
To the west, the area is confined by the Eichsfeld-Schwelle, whereas to the north and east, the
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nally a shallow water terrain and deepens only about 35 km further to the east of the sedimentation basin.
The influence of the marginal position of the Küllstedt area in the basin causes a decrease of
the K2O contents within the potash seam in the southern and western areas. Due to different
facies of the potash mineralisation, different sub-areas can be defined in the Küllstedt area (cf.
APPENDIX 3). Whereas a predominance of carnallitic potash ore is assumed in the northern
part, a predominance of sylvinite/sylvinitic ore is expected in the southern part (VVB Feste
Minerale, 1964, /22/).
Locally, potash mineralisation occurs already in the Stassfurt-Steinsalz (z2NA) in the area
north of Mühlhausen due to its special paleomorphologic situation. Due to its location, the explored part of this particular area belongs to the central part of the pre-Zechstein basin of
Mühlhausen. Unlike in different parts of the basin that were already being dried out at the
same time, the area north of Mühlhausen was part of a depression where brines evaporated
and potash mineralisation occurred (Döhner, 2001, /7/).
The thickness of Stassfurt-Steinsalz (z2NA) increases from the south (10 m – 20 m) to the
north (approximately 70 m).
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Series
(Regional) Group
Formation/Sequence
Stratigraphic
Symbol
Horizon (Local Name)
Quaternary
Thickness [m]
min
max
q
0.0
15.0
ku
mo
mm
mu
0.0
0.0
0.0
0.0
21.0
61.0
166.0
109.0
so
0.0
253.7
sm
0.0
165.0
su
305.0
527.2
Hiatus
Keuper
Buntsandstein
Triassic
Muschelkalk
Unterer Keuper
Oberer Muschelkalk
Mittlerer Muschelkalk
Unterer Muschelkalk
Oberer Buntsandstein
Mittlerer Buntsandstein
Unterer Buntsandstein
Röt 4
Röt 3
Röt 2
Röt 1
Roter Röt
Pelit-Röt
Grauer Röt
Solling-Folge
Hardegsen-Folge
Detfurth-Folge
Volpriehausen-Folge
Bernburg-Folge
Calvörde-Folge
Ohre- bis FuldaFormation
Aller-Formation
Permian
Zechstein
Leine-Formation
Stassfurt-Formation
Werra-Formation
so4
so3
so2
so1
soR
soP
soG
smS
smH
smD
smV
suBG
suC
Obere Zechsteinletten
z5-z7
0.0
34.5
Grenzanhydrit
Allersteinsalz
Pegmatitanhydrit
z4ANb
z4NA
z4ANa
0.0
0.0
0.0
2.0
17.0
4.5
Roter Salzton
z3Tb-z4Ta
0.0
15.0
Leinesteinsalz
Hauptanhydrit
Plattendolomit
z3NA
z3AN
z3Ca
0.0
11.0
0.0
89.4
108.0
11.5
Grauer Salzton
z2Tb-z3Ta
3.0
18.0
Deckanhydrit
Decksteinsalz
Kaliflöz Staßfurt
Staßfurt-Steinsalz
Basalanhydrit
Hauptdolomit
Oberer Werra-Anhydrit
Werra-Steinsalz
Unterer Werra-Anhydrit
Werra-Karbonat
Werra-Ton (Kupferschiefer)
Werra-Basalkonglomerat
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2D
z1ANc
z1NA
z1ANa
z1CA
z1T
z1C
0.0
0.0
0.0
15.5
0.53
1.6
3.0
31.0
23.0
2.80
0.35
0.50
40.8
10.0
6.1
58.0
77.0
10.0
68.7
4.4
213.4
82.0
19.75
>2.85
0.50
-
Basement
Figure 3
Stratigraphic Succession in the Küllstedt Exploration Licence Area
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6.2
Local Geology of the Evaporites
The South Harz Potash District is, unlike the neighbouring Unstrut Potash District, characterised by a shallow depth of the sedimentation area with a distinctive morphological structuring
of the basin’s floor due to late Variscan structures underground. As mentioned in Section 6.1,
the Zechstein in the South Harz Potash District is subdivided into seven cycles, of which the
oldest cycle, the Werra Formation, has the largest thickness with a minimum thickness and
maximum thickness of 103 m and 314 m respectively, and consists mainly of Halite, which is of
the largest thickness, and Anhydrite. Subordinately, carbonates and copper-bearing clays
(Kupferschiefer) occur.
The overlying Stassfurt Formation, with a thickness of between 32 m and 255 m, contains the
Kaliflöz Stassfurt (z2KSt), which is relevant for mining and the current exploration target of the
project, with a thickness of up to 58 m (Figure 3). In general, this formation is characterised by
a relatively thick and locally very variable formation of basal carbonate- and sulphate-bearing
layers with a relatively small thickness of the Stassfurt-Steinsalz (z2NA) accompanied by uneven lithological profiles and clay intercalations. A locally uneven, partly early beginning of the
potash mineral deposition is also known of the South Harz Potash District (cf. Section 6.1).
Besides the Kaliflöz Stassfurt (z2KSt), the so-called Hauptdolomit was of temporary interest as
it contains a comparably large percentage of organic matter, creating the basis for the hydrocarbons, which were explored in the past, among others by the four drill holes along the
southwestern border of the Küllstedt Exploration Licence Area, Hainich-Eigenrieden 1/62 to
Hainich-Eigenrieden 4/62. The stratigraphical formation consists of mainly dolomitic rocks with
locally changing, platy, crystalline as well as dark, dense and relatively brighter, dense to
grainy-bulbous formations.
Overlying the Hauptdolomit, the Stassfurt-Basalanhydrit (z2ANa) has a very variable thickness
in the South Harz Potash District, between less than 1 m in the Bischofferode area and 30 m
towards the east. The facial transition to the underlying and overlying rocks is very variable.
The Stassfurt-Steinsalz (z2NA) normally occurs in form of the so-called Anhydritregion as grey
to colourless salt rocks with even Anhydrite bands with distances between each other in the
range of centimetres to decimetres. In the South Harz Potash District, this region was deposited in a locally restricted area between Bleicherode and Wolkramshausen and, to the south,
Ebeleben. The Anhydritregion has a thickness of only 40 m, thinning towards the west. The
overlying section has a completely different facial development with reddish to reddish-brown
rock salt, clay intercalations (“Tonlöser”) and, running normally to the layering, fissures that
mainly filled with secondary clay-bearing Halite, which are all an indication for continental influence with periodic drying of the sediment surface and subsequent flooding with brines. The
nest-like embedding of potash minerals can probably be traced back to these events as well.
The whole section overlying the Anhydritregion and described here is also known as “SüdharzSteinsalz” and can be further subdivided by its appearance into a lower section (“Unteres
Südharzsteinsalz”), which has a strong overprinting of the original layering by recrystallisation
in the formerly freshly deposited sediments, and an upper section (“Oberes Südharzsteinsalz”),
which has less overprinting but thus a more distinctive layering, caused by clay and anhydritic
inclusions, which allows the determination of stratigraphic marker horizons (Bartl et al., 2003,
/1/).
Due to its comparably small thickness, the Stassfurt-Steinsalz (z2NA) forms a less welldeveloped protective layer for the overlying Kaliflöz Stassfurt (z2KSt) against the hydrocarbons
and brines contained in the underlying carbonate and sulphate layers. The surficial structures
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of the Stassfurt-Basalanhydrit (z2ANa) also cause difficulties during the creation of new drifts
in conventional mining when facing tectonically influenced areas.
The Kaliflöz Stassfurt (z2KSt) has a generally distinctive layering with decreased distances
between the single layers in the range of decimetres to centimetres, but partly also in the millimetre range, alternating in their mineral content between Halite and potash minerals as well
as thin sulphate mineral layers with different compositions. The latter are accompanied by clay,
which also occurs isolated in thin layers. The clay reduces the overall rock strength, which is
also known under the term “Tonlöser”, and was therefore also the main reason for roof falls
that threaten conventional mining. According to the layering, two areas can be distinguished in
the Kaliflöz (z2KSt), which are the footwall group with mainly a narrow layering (centimetres to
millimetres) almost without thick Halite layers, which increases the percentage of mineable
potash minerals, and the hanging wall group below with a wider spacing of the layering (decimetres) and characteristically several centimetre- to a few decimetre-thick Halite layers (Bartl
et al., 2003, /1/). The footwall group is subdivided into the 10 marker horizons (Leitbank 1 to
10) and the hanging wall group into further nine marker horizons (Leitbank 11 to 19) (Seidel,
2003, /13/).
The Decksteinsalz overlies the Kaliflöz Stassfurt (z2KSt) with a thickness between 0 m and
about 6 m (Figure 3) and represents no independent stratigraphic unit as previously anticipated, but corresponds to extensive barren layers in the uppermost part of the potash seam,
mainly proven by relictic occurring minerals and structures of formerly present potash minerals.
The same accounts for the overlying Deckanhydrit with thicknesses between 0 m and 10 m
and its often distinctive layering, which represents the former layering of the potash section.
The mineral conversions here were more intensive than in the Decksteinsalz.
Above the Deckanhydrit, dark sediments occur, increasingly dominated by clay. In the lower
part of these sediments, salt inclusions indicate the fading of the evaporite deposition, which
designates this part to the Stassfurt Formation (Oberer Stassfurt-Ton (z2Tb)), whereas the
upper part is designated to the Leine Formation (Unterer Leine-Ton (Grauer Salzton) (z3Ta))
(Figure 3).
6.3
Geological Development of the Potash Deposit in the South
Harz Potash District
The following sections present the geological development of the potash deposit due to mineral conversions of the potash-bearing minerals and tectonical events.
6.3.1
Origin of the Potash Mineralisation
The Kaliflöz Stassfurt (z2KSt) was relatively evenly sedimented as kieseritic carnallitite with an
original mineralisation consisting of Carnallite (between 55% and 60%), Halite (between 25%
and 30%) and Kieserite (between 10% and 14%), whereas the lower part of the footwall group
is almost Kieserite-free. Shortly after the deposition of the carnallitite, mineral conversion processes began due to the high solubility and reactivity of the salt minerals when facing a different chemical environment. External brines, not belonging to the original sedimentation conditions and usually undersaturated with regards to potash-minerals, could flow through the still
relatively porous and uncompacted evaporites and remove their components in the order of
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decreasing solubility, accompanied by the generation of new minerals in the affected areas.
Carnallite was converted to Sylvite due to an excess of magnesium chloride (MgCl2) brine according to
KCl·MgCl2·6H2O +
H 2O
Carnallite
water
→
KCl +
MgCl2(aq)
Sylvite
magnesium chloride brine
The Sylvite is the main potash mineral in sylvinite (Section Figure 4), which dissolution led to
barren rocks. Kieserite, as a mineral of relative low solubility, was converted to Mg-, Ca-, Kand Na-bearing sulphates, commonly occurring in the sylvinite (Section Figure 4) (Bartl et al.,
2003, /1/).
Mineral conversions led to loss of substance in the original evaporites, on one hand due to the
dissolution and removal of components of the original minerals, if not recrystallized in other
places of the deposit, and on the other hand due to the removal of crystal water from the original minerals like Carnallite, which contains 39% of crystal water. Accordingly, different thicknesses of the differently developed potash profiles were the result (e.g. a thickness of about
19 m for completely barren rocks, of about 22 m for sylvinite and of about 46 m for unaffected
carnallitite).
Based on recent knowledge, two different directions of Zechstein-aged external brines are
known to have an influence on the deposit, which are ascending NaCl-saturated (Seidel, 2003,
/13/) brines probably having originated from volcanic sources below the Zechstein-aged rocks
and/ or from the compacting of the Rotliegend rocks below the Zechstein rocks or the Zechstein rocks themselves, and descending brines probably having their origin in the decreasing
concentration of the mother liquor at the end of the second cycle of the Zechstein (Bartl et al.,
2003, /1/; Schröder & Blümel, 1977, /13/).
Ascending brines affected the original deposit along their pathways, creating spatially restricted zones of mixed salt, sylvinite and barren rocks, which are very variable in terms of their
extension and vertical as well as horizontal arrangement. The barren rock zones are the final
stage of the conversion processes as the inflowing fluids were already saturated with sodium
chloride (NaCl). In the South Harz Potash District, extensive barren rock zones are known,
which might have been the result of ascending fluids converting the original deposit due to the
small thickness of the Stassfurt-Steinsalz (z2NA) (cf. Section 6.2). The relatively hardly soluble
Kieserite of the original carnallitite was also affected and completely converted to fine crystalline Anhydrite, which occurs as the main sulphate-bearing mineral in the district. Since this
mineral is even less soluble, it was not further affected by the ascending brines.
The influence of descending brines on the Kaliflöz Stassfurt (z2KSt) is expressed by the extensive occurrence of the Deckanhydrit and Decksteinsalz, which underwent intensive conversion processes, amongst others caused by NaCl-undersaturated solutions (Seidel, 2003,/13/).
According to Section 6.2, the Deckanhydrit was affected most intensely by the removal of the
chloride minerals, whereas the Decksteinsalz represents a partial development of a barren
zone at the hanging wall block of the Kaliflöz Stassfurt (z2KSt). Underlying carnallitite is converted to sylvinite if the influence of descending brine is smallest. As the thickness of the affected profiles of the potash section is determined by the depth of the former sedimentation
basin, such profiles of marginal areas have a much larger thickness than the profiles located
more centrally and in deeper parts of the former basin. Accordingly, a stratigraphic reduction of
the remaining potash profile occurs, whereby the Deckanhydrit has the largest thickness in the
profiles of the marginal areas (e.g. 75% of the total thickness of the potash section in the
Mühlhausen-Pöthen area).
Geologically, the influence of both types of solutions can be attributed to the second cycle of
the Zechstein with the generation of the Stassfurt Formation. However, the ascending brines
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influenced the deposit at first, whereas the descending brines encountered the results of this
prior influence before the sedimentation of the Unterer Leineton (z3Ta) (Bartl et al., 2003, /1/;
Schröder & Blümel, 1977, /13/).
6.3.2
Tectonics of the Potash Deposit
The evaporite formation of the Zechstein was affected by tectonic events during the late Mesozoic and Tertiary, which led to the exhumation of the Harz Mountains and Thüringer Wald as
well as the development of the Thüringer Becken and which also determined the present depth
distribution of the Kaliflöz Stassfurt (z2KSt). In the more competent rocks above and below the
evaporite formation, fractures developed with corresponding displacement of these rocks
against each other, whereby the salt rocks developed characteristic fold structures due to their
comparably lower competence. The evaporite formation thus influenced the tectonic development of the rocks below and above it and was also influenced in the same way by these rocks,
depending on its thickness. The South Harz Potash District is tectonically more differentiated
than the Unstrut Potash District to the east.
The Finne fault mentioned in Section 6.1 extends from the Unstrut Potash District towards the
northwest as a zone of intensively faulted salt rocks, known as Wippertal-Störungszone and
traceable across the mining claims of Sonderhausen and Bleicherode to the area north of Bischofferode. Although its offset is decreasing towards the Thüringer Becken, the influence of
the fault zone on the intrasalt tectonic is remarkable, which is mainly a result of the comparably
small thickness of the salt formation. Northeast of the Wippertal-Störungszone in the South
Harz Potash District, only a thin seam of potash mineralisation occurs, followed further in that
direction by the area of subrosion south of the Harz Mountains.
The largest part of the South Harz Potash District has developed in the area between the Wippertal-Störungszone and the NW-SE trending Schlotheimer Graben, thus tectonically belonging to the Thüringer Becken. Northwest of Schlotheim, the typical graben character decreases
and the fault system of the Schlotheimer Graben occurs as a thrust of the almost complete
second cycle of the Zechstein in the Pöthen mine claim without further complexity. Intensive
deformation of the evaporite formation is known, however, from drill holes and mine drifts in
the Keula-Ebeleben-Schlotheim area.
The NNE-SSW trending Ohmgebirge-Grabenzone in the northwestern part of the South Harz
Potash District is represented by a pronounced strain structure right below the topographic
surface. Within the evaporite formation, this structure is fading from its top downwards, and is
no longer traceable at the level of the Kaliflöz Stassfurt (z2KSt) in the Bischofferode mine
claim.
The level of the Kaliflöz Stassfurt (z2KSt) is dominated by folding structures of different dimension (several metres to several hundreds of metres) and vergence in tectonically affected areas, by overturned folds, thrusts, layer thickening and thinning, punctured by more competent
layers (Anhydrite) and injection of ductile rocks (especially “Trümmercarnallitit”). The more extensive anticlinal and synclinal structures in the more competent rocks underlying and overlying the Kaliflöz Stassfurt (z2KSt) (Stassfurt-Basalanhydrit (z2ANa) and Leine-Anhydrit
(Hauptanhydrit) (z3AN)) influenced the tectonic deformation of the potash section, whereas the
Leine-Anhydrit (Hauptanhydrit) (z3AN) especially, embedded within the salt rocks, induced
compensation movements within these rocks, particularly in the Kaliflöz Stassfurt (z2KSt),
where the carnallitite as a very mobile (incompetent) rock was the preferred material for this
compensation. Continuous tectonic strain on the rock layers of the Unterer Leineton (Z3Ta)
and Leine-Anhydrit (z3AN) (especially in hinge and top areas of folds) led to the ripping apart
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of these layers, which caused the Kaliflöz Stassfurt (z2KSt) to be directly overlain by the LeineSteinsalz (z3NA). In the eastern part of the Bischofferode mine claim, the largest thickness of
Trümmercarnallitit within such structures was measured at >160 m (Bartl et al., 2003, /1/).
The fold structures of the South Harz Potash District show a NW-SE trend with small regional
differences of this direction between the western, central and eastern part, but with distinctive
dependencies of the tectonic structures on the boundary line of the surrounding potash distribution within the potash seam. Accordingly, a great variability of tectonic influence is observed
from almost non- to weakly affected areas showing horizontal to slightly dipping, even or weakly waving potash layers, to strongly affected areas with the described structures, mainly linked
to regional or trans-regional fault zones (e. g. Wippertal-Störungszone or Schlotheimer Graben).
As a consequence of the tectonic influence, parts of the Zechstein evaporite were exposed to
near-surface waters in the cap rock due to exhumation of extensive parts of the crust (e.g.
Harz Mountains), which affected the Kaliflöz Stassfurt (z2KSt) in particular, since it contained
and still contains minerals with high solubility (e.g. Carnallite). Accordingly, a so-called salt
table developed in the South Harz Potash District, which is today’s limit for the extension of the
salt rocks.
6.3.3
Subrosion
Due to the synclinal bedding of the Zechstein layers and those of the cap rock, these rock layers rise towards the Leinefelder Sattel in the north and the Hainich in the west and southwest
respectively, whereas the stratigraphically overlying formations crop out gradually. This causes
the evaporite horizons to come more and more into the area of influence of surficial circulating
waters, with their leaching effect causing the subrosion of these horizons. The extent of the
evaporite subrosion is derived from abrupt changes in thickness of the horizon under the premise that the loss of substance is due to subrosional processes. Locally, facial differences can
also be the reason for these changes. However, reliable evidence that subrosion caused these
changes in thickness is difficult to find, since only a few drill holes in the areas affected by
subrosion were cored.
The areas with beginning subrosion run more or less parallel around the MühlhausenAltengottern-Mulde in form of belts. While the inner belt affects the stratigraphically higher
evaporate horizons, the outer belt affects the stratigraphically lower evaporite horizons. The
general progress of the individual belts is mainly determined by structural conditions and often
modified by tectonic structures (fault zones, anticlines and synclines), the morphology of the
topographic surface and the facial development of the salt horizons.
6.3.3.1
Subrosion in the Zechstein
The evaporite horizons of the Zechstein were affected by subrosion in different sized areas. In
general, the subrosion begins beyond the Vollenborn-Hüpstedt-Dingelstädt-Effelder-Heyerode
line and gradually includes the stratigraphically older evaporite horizons towards the north and
west.
The evaporite horizons of the Zechstein are then affected by subrosion if they are located at
elevations between 200 m and 350 m below sea level, which corresponds to a depth of 500 m
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to 800 m with respect to the topographic surface. Towards the north, shallower depths were
identified and towards the west, larger depths, which means that the level of subrosion increases towards the north.
6.3.3.2
Subrosion in the Triassic Overburden
Evaporite formations in the Triassic overburden are present in the Röt Formation (soRF)
(Figure 3) and in the Anhydrit-Formation. While rock salt in the latter formation are primarily
developed only southeast of the Mühlhausen-Schlotheim line, in the other parts of the project
area, Gypsum that is extensively affected by subrosion as well occurs, which, in combination
with karstification, makes it hydrogeologically important.
The subrosion of the Röt Formation begins at the Holzthaleben-Schacht Pöthen-SaalfeldBeberstedt-Dingelstädt-Effelder-Heyerode line, meaning the boundary where subrosion begins
runs parallel to that in the salt horizons of the Zechstein, which additionally coincides with the
crop line of the Hauptmuschelkalk-Formation. This boundary deviates only within the area of
the Volkenroda-Pöthen mine claim to the southeast, which is probably due to the existence of
numerous ESE-WNW trending fault zones offering leaching waters pathways and allowing an
extension of the subrosional front in that direction.
The area where subrosion begins is located at elevations between 100 m to 150 m above sea
level in the north and between 250 m and 300 m above sea level in the west and southwest of
the project area. Only near Pöthen does the subrosion reach elevations of 20 m above sea
level. With respect to the topographic surface, the subrosion reaches depths of 300 m in the
north and 150 m in the west.
6.4
Hydrogeology
Within the following sections, the hydrogeological conditions of the Küllstedt area are presented, first with a description of surface waters (Section 6.4.1), followed by a description of the
underground conditions (Section 6.4.2).
6.4.1
Surface Waters
The Unstrut River, with its upper reaches at the WNW margin of the Thüringer Becken and its
source at Kefferhausen, is the largest waterway in the area, flowing through it in a southeastern direction. It is supplied by multiple tributary streams mainly coming from the west. At the
northern border of the Küllstedt area close to the country town of Deuna, the freshwater reservoir Ahlenbach is located, which is supplied by the Ohne River. To the south, the Lutter River,
flowing in southwestern direction at the country towns of Wachstedt and Küllstedt, and Luhne
River, flowing in southeastern direction and joining at Mühlhausen with the Unstrut, are larger
surface waters.
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6.4.2
Groundwater
Hydrogeologically, two different main groundwater storeys can be distinguished according to
the volume and composition of the circulating water (Figure 4), which belong to the Zechstein
and Buntsandstein (lower main groundwater level) and the Muschelkalk, Keuper and Quaternary (upper main groundwater level). The individual horizons of the first groundwater level allow the passage of highly mineralised waters along jointed areas in fracture zones (formations
waters), but usually their volumes are small and their movement minimal. The second groundwater level comprises of horizons with good conductivity, like the highly karstified Mittlerer
Muschelkalk (Anhydrit-Formation) and the overlying lower part of the HauptmuschelkalkFormation. The groundwater movement follows the dip of the individual horizons, especially
along fault zones. The waters escape at some sources with high flow rates, mainly in the
Mühlhausen area. Since water from these sources is used as potable water, the groundwaterbearing Muschelkalk in this area is well investigated.
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Figure 4
Overview of the Lithostratigraphy Within the Investigation Area and Classification into Aquifers and Aquitards
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6.5
Mineralisation
Stratigraphically, the Kaliflöz Stassfurt (z2KSt) comprises sediments between the top of the
Stassfurt-Steinsalz (z2NA) and the base of the Unterer Leineton (z3Ta). The stratigraphic subdivision is realised by the marker beds 1 to 19, whereby the first marker bed is equal to the
base (Tinnes, 1928, /16/).
Within the Kaliflöz Stassfurt (z2KSt), different evaporites occur, changing in their occurrence
horizontally as well as vertically in the smallest of spaces (in the range of centimetres), with the
fine Halite and clay layers usually being unaffected. Distinctive salt facies are not bound to
certain stratigraphic horizons. In the potash seam, the following salt facies occur (Bartl et al.,
/1/; Seidel, 2003, /13/):
§
Carnallitite: the main mineral is Carnallite (KCl·MgCl2·6H2O), accompanied by Halite
(NaCl) and Kieserite (MgSO4·H2O), subordinately also by Anhydrite (CaSO4), and rarely by clay and Boracite (Mg3B7O13Cl). Iron-bearing minerals (Hematite (Fe2O3) and rarely Goethite (Fe3+O(OH))) appear finely dispersed as red colour pigments. Under undisturbed conditions, the mineral composition is 56.9% Carnallite, 29.5% Halite, 10.7%
Kieserite, 2.3% Anhydrite and 0.6% insolubles. Towards the top of the potash section,
the amounts of Carnallite and Kieserite increase. Carnallitite occurs most often in terms
of area, compared to other types of mineralisation in the potash seam, with the comparably lowest variability of all salt facies. However, the carnallitite has a lower percentage of K2O (around 10%),compared to the sylvinite. Furthermore, the original layering
of the sediments is rarely preserved. More often, shatter structures are present. The
rubble consists of Halite embedded in a Carnallite matrix.
§
Mixed salt: depending on the degree of influence by ascending brines on the original
deposit, this salt facies is a mixture of minerals contained in the original carnallitite and
its conversion product sylvinite with a very variable composition. The mixed salt facies
was mined in the South Harz Potash District in the Bleicherode, Sollstedt and
“Glückauf” Sondershausen Mines.
§
Sylvinite: The main mineral is Halite (NaCl), whereas Sylvite (KCl) is the main potassium-bearing mineral. Additionally, Polyhalite (K2SO4·MgSO4·2CaSO4·H2O), Langbeinite
(K2SO4·2MgSO4), Kieserite (MgSO4·H2O), Kainite (KCl·MgSO4·3H2O), Anhydrite
(CaSO4) and, to a lesser degree but more often than in the carnallitite, clay occur. Admixtures of Boracite (Mg3B7O13Cl) and Pyrite (FeS2) in small concentrations are also
present. Sylvinite, which theoretically developed from the abovementioned carnallitite
due to influence of ascending brines at 55°C, has a composition of 60.9% Halite, 19.2%
Anhydrite, 18.4% Sylvite and 1.9% insoluble, amounting to a K2O content of 11.6%. If
the Sylvite is restricted to the horizons overlying the 8th marker horizon, the Sylvite percentage increases to 23.2% and the Anhydrite percentage to 22.9% amounting to a
K2O content of 14.7 %. Noteworthy is the zoning of sulphate minerals in the transition
zone with carnallitite or barren zones. In the South Harz Potash District, this polysulphatic sylvinite is restricted to the s Pöthen, Volkenroda and Bischofferode Mines. Otherwise, almost only monosulphatic, so-called anhydritic sylvinite occurs, which surrounds the large barren zones of the potash district. Deposits of sylvinite are usually
spatially linked to barren zones, arranged between these zones and carnallitite zones
and there is generally a higher to very high variability in terms of the mineralogy. Like in
the carnallitite, shatter structures are also known to exist in the sylvinite.
§
Glaseritic sylvinite: this salt facies is restricted to the southwestern parts of the South
Harz Potash District, mainly in the Küllstedt-Mühlhausen area and parts of the Pöthen
and Volkenroda mining sites, and is in its distinctive formation free of Sylvite. The main
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potassium-bearing mineral is Glaserite (K3Na(SO4)2), whereas Halite (NaCl) is the main
mineral. Additionally, zonally distributed Polyhalite (K2SO4·MgSO4·2CaSO4·H2O),
Langbeinite (K2SO4·2MgSO4), Syngenite (CaSO4·K2SO4·H2O) and Görgeyite
(K2SO4·5CaSO4·H2O) occur.
§
Barren zones: the main mineral is Halite (NaCl), often only accompanied by Anhydrite
(CaSO4) and locally (Bischofferode) occurring Polyhalite (K2SO4·MgSO4·2CaSO4·H2O)
and Kieserite (MgSO4·H2O). These zones comprise partly the complete profile of the
potash seam, but can also only affect parts of it, either below, within or above the sylvinite in varying combination. Barren zones above the sylvinite are a common feature
of the Kaliflöz Stassfurt (z2KSt).
Within the Küllstedt area, predominantly carnallitite as potash ore has been encountered (cf
Chapter 15), partly covered by sylvinite of small thicknesses. Only the Felsenfest 1 drill hole in
the northern part has intersected a barren zone.
The potash mineralisation within the Stassfurt-Steinsalz (z2NA) is continuous, layer-bound and
has its onset already in the upper part of the Stassfurt-Steinsalz (z2NA) in the paleogeographically deepest part of the basin north of Mühlhausen as described previously (cf. Section 6.1).
Like in the Kaliflöz Stassfurt (z2KSt), the potash mineralisation within the Stassfurt-Steinsalz
(z2NA) occurs in form of the carnallitite and sylvinite as described above. However, the concentrations have not been proven to be commercially mineable so far.
6.5.1
Potash Distribution, Thickness and Grade
The depth of the top of the Kaliflöz Stassfurt (z2KSt) is shown in APPENDIX 5 and its thickness and KCl grade distribution in APPENDIX 6 and APPENDIX 7 respectively. Interpretations
are given in Chapter 15.
7
Deposit Type
Based on the geological information available from the exploration activities, the potash deposit within the Küllstedt Exploration Licence Area can be characterised as follows:
§
The occurrence of potash salts is mainly related to the presence of the Kaliflöz Stassfurt (z2KSt). Locally, potash mineralisation also occurs within the Stassfurt-Steinsalz
(z2NA). Nevertheless, no commercially mineable concentration within the StassfurtSteinsalz (z2NA) has been proven yet.
§
The potash minerals present in the deposit are Carnallite, Sylvite and Polyhalite. The
additional exploitation of Halite could be possible.
§
The Sylvite is of secondary origin, which leads to the assumption that the primary carnallitite deposit has reacted with water (cf. Section 6.3.1).
§
For Carnallite and Polyhalite, a primary origin is assumed.
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The presence of water in the carnallitite is caused by ascending brines from the foot wall
(structurally controlled) and descending brines from the hanging wall (influence of sea water
directly after deposition).
Generally, the bedding of the deposit is slightly wavy with an even dip over large distances,
however, with differences in areas with ESE-WNW trending fault zones, which are accompanied by a comparably high salt-tectonic deformation of the deposit
8
Recent Exploration
Currently, there are no exploration activities in place in or adjacent to the Küllstedt Exploration
Licence Area.
9
Data Verification
As almost no core material and samples are left, so no verification of historical assays could be
carried out. Geophysical drill hole logging is no longer possible as well, since all holes were
grouted after all measurements were grouted. However, as mentioned in Chapter 2, the geologists in charge for the exploration work are considered trustworthy and their work is reliable.
9.1
Historical Data
Planning, supervision as well as documentation and evaluation of the historical exploration
were done according to standards defined by the state reserve commission or reported internal
company guidelines. The same applies for categorisation of deposit types, resources and reserves (cf. Chapter 13). The interpretation of the historical drill hole data is, therefore, accepted
as a reliable database for this Report.
10
Mineral Processing and Metallurgical Testing
At the present stage, no test work programme is planned because no mining or processing
concept has been selected yet.
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11
Mining Concept
For mining of the sylvinite (sylvinite)/carnallitite, proven mining technologies are available as
the historical conventional mining in the northeastern part of the Küllstedt area shows.
Since the project is at an initial stage, no mining method has been discussed at the moment.
12
Processing Concept
Depending on the mining concept that will be detailed with further project development, several
proven technologies are available for the processing of sylvinite and carnallite in the form of
solid or brine feed to the processing plant. Furthermore, the development of a processing concept will depend on the product requirements. It is therefore recommended that viable processing options be verified during further project development.
13
Exploration Target Estimates
The minerals Sylvite and Carnallite, encountered as sylvinite and carnallitite respectively, may
potentially form the basis of an industrial mining of potash and processing to an MOP product.
The experience of the successful potash mining industry in the South Harz Potash District
shows that the exploitation of such a deposit is possible. The processing of such type of minerals is technically feasible as well.
It is the opinion of the authors of this Report that the available data from the drilling and geophysical exploration work done during historical exploration (cf. Chapters 5, 8 and 9) are sufficient to confirm that the Küllstedt Exploration Licence Area contains substantial potash mineralisation within the Permian Stassfurt Formation.
Based on the historical data available, the authors have prepared an estimate of Exploration
Targets. These Exploration Targets are estimated in accordance with Section 17 of the JORC
Code (2012, /9/):
An Exploration Target is a statement or estimate of the exploration potential of a mineral deposit in a defined geological setting where the statement or estimate, quoted as a
range of tonnes and a range of grade (or quality), relates to mineralisation for which
there has been insufficient exploration to estimate a Mineral Resource.
The potential quantity and grade of the Exploration Targets are conceptual in nature and currently, the partly insufficient exploration (only historical data, no original material available, no
independent cross-check analyses) for the estimation of a Mineral Resource for the historical
drill holes. Based on the current dataset, it is possible but uncertain that further exploration will
result in the estimation of a Mineral Resource.
Due to the limited access to potash exploration reports, a final evaluation of the historical data
is not possible at the moment. However, since the authors of this Report are familiar with the
working procedures of the former geologists, which were quality-checked by independent state
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institutes, the available documents are considered a trustworthy basis for the estimation of
Exploration Targets for the Küllstedt Exploration Licence Area.
In estimating the Exploration Target tonnages, the following procedures were carried out (Exploration Targets are given as mineralisation in place):
•
Based on the available information, a geological model of the deposit was generated.
The total volume of the potash seam was calculated to be 2.216 km³.
•
The volume calculated for the potash seam was multiplied with a tonnage factor depending on mineralisation (density). This average density may vary between 1.83 t/m3
and 2.32 t/m3. This amounts to a tonnage range of between 4,055 million metric
tonnes and 5,141 million metric tonnes of mineralised rock.
•
The related tonnages of K2O were obtained by multiplying the tonnage of mineralized
material with the corresponding K2O grade of the potash seam, which range from 7.2%
to 25%. Accordingly, the minimum K2O tonnage is 292 million metric tonnes and the
maximum K2O tonnage is 1,285 million metric tonnes.
For the estimation, all historical drill holes, which occur within or near the Küllstedt Exploration
Licence Area and which contain complete assaying data of the potash seam, have been used.
No geological or technical cut-off values for thickness or grades have been applied.
It is the opinion of the authors that, taking into account all the factors presented herein, the
previously described potash seam can potentially be extracted by conventional underground or
solution mining. The economic and technical viability are subject to further geological, geophysical, rock mechanical and engineering studies.
14
Adjacent Properties
Adjacent to the Küllstedt Exploration Licence Area is the Mühlhausen-Nohra Mining Property,
managed by the owner, BVVG Bodenverwertungs- und -verwaltungs GmbH (BVVG). It covers
a total area of 141.6 km² and consists of the fields Küllstedt (47.98 km²) in the southeast, Keula (61.37 km²) in the northeast and Nohra-Elende (26.41 km²) in the distant northeast of the
Küllstedt Exploration Licence Area. Currently, no mining or exploration activities are known.
Other mining properties in the vicinity of the Küllstedt Exploration Licence Area are Volkenroda-Pöthen in the east and Bischofferode, Bleicherode, Sollstedt and Kehmstedt in the far
north.
15
Interpretation and Conclusions
The potash deposit in the Küllstedt Exploration Licence Area is distributed across almost the
entire area with exclusions along a narrow seam with a width between 600 m and 1,000 m
along its western border. Generally, the depth of the potash seam top increases from the north
to the south, with values ranging between 120 m below sea level and 860 m below sea level
(APPENDIX 5).
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The thickness distribution is uneven, which may be a function of drillhole density and location.
The distribution shows some high values northeast of Büttstedt (approx. 30.3 m) and west of
Deuna (approx. 58 m) and some low values northeast of Eigenrode (1.5 m) and north of Küllstedt (approx. 1.7 m) (APPENDIX 6). Towards the west, the thickness decreases, while it increases towards the southeast.
The average K2O grade distribution separates the Küllstedt Exploration Licence Area into two
parts, with the northeastern part showing a more even distribution of comparably lower values
(between 9.6% to 14% K2O) than the southwestern part with comparably higher values (approx. 18.3% K2O) (area between Helmsdorf and Büttstedt). However, for the southwestern
part, only information from one drill hole (Kal Küllstedt 1/62) was used.
In terms of the distribution of the salt mineralisation, a large part of the Küllstedt Exploration
Licence Area is underlain by carnallitite, while other facies are restricted to the marginal parts
of the area. Mixed salt (carnallitite + sylvinite) is restricted to a thin seam east of Horsmar,
while sylvinite-dominated sylvinite runs along the southwestern border of the carnallitite extent
between Bickenriede and Wachstedt as a 1.2 km to 1.5 km wide band. At Wachstedt, it bends
over towards the southwest. North of Bickenriede, the sylvinite facies bends over to the north
and enters the licence area again south of Helmsdorf and at Sollstedt. The rock salt facies is
adjacent to the described sylvinite extent in the southwest and covers the southern border of
the area between Küllstedt and the north of Oberdorla.
The former exploration and mining activities in the Küllstedt Exploration Licence Area showed
the potential for potash mining here. Based on historical data, mining is assumed to be economically feasible in the area, which is further supported by a well-developed infrastructure
and the extensive experience of professionals, who have worked for decades in the South
Harz Potash District and still live in the area. Furthermore, modern mining and processing
techniques enable an increase in the potash yield from ore as potash-bearing minerals, which
were waste material in the past, can be utilised nowadays.
16
Recommendations
The analysis of the existing exploration work shows that parts of the Küllstedt Exploration Licence Area underwent intensive geological exploration in the past. The results of these drill
holes are only available to the authors in a summarised form at present. Based on these data
as well as the experience of the authors of this Report with the type of historical exploration
carried out and their documentation, it can be justifiably assumed that an analysis of these
detailed exploration reports could enable the estimation of Mineral Resources in accordance
with the JORC Code (2012, /10/). The following recommendation is therefore made:
(1) Application for permission to view and use the detailed historical exploration reports as
well as carry out tests on the still existing sample material from these exploration drill
holes. Based on the data that becomes available, the JORC Report should be updated.
Independent of the results of (1), the estimation of Mineral Resources in the Indicated and
Measured categories in accordance with the JORC Code (2012, /10/) requires additional exploration work to be carried out. Therefore, the following is also recommended:
(2) The data from the historical drill holes should be checked via confirmation drilling in the
Küllstedt Exploration Licence Area, which allows an extraction of cores from the potash
section for detailed description and chemical assaying. Additionally, the confirmation
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holes can be logged geophysically to cross-check the historical data and correlate the
results with those of the chemical analyses.
If the confirmation drilling shows promising results and the decision is made to start a mining
operation, subsequent studies on environmental and social impacts have to be conducted prior
to it, accompanied by hydrogeological drilling to obtain information on the groundwater-bearing
layers above the deposit and below. Although this is not necessary in the immediate future, it
should be taken into account for further planning.
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REFERENCES
/1/
Bartl, H., Döring, G., Hartung, K., Schilder, C., Slotta, R. (2003): Kali im Südharz-UnstrutRevier. - Deutsches Bergbau-Museum Bochum, Bochum, 444 Seiten.
/2/
CIM (2010): CIM Standards on Mineral Resources and Reserves – Definitions and Guidelines of the Canadian Institute of Mining, Metallurgy and Petroleum. 27 November 2010.
/3/
Wetterdienst.de (2014): Klima - Station Mühlhausen/Thüringen-Görmar (190 m), 2014.
http://www.wetterdienst.de/Deutschlandwetter/Muehlhausen_Thueringen/Klima/. Zugriff am
22. Januar 2015.
/4/
Dockter, J. (1963): Erläuterungen zur Geologischen Spezialkarte der Deutschen Demokratischen Republik 1:25000 - Blatt Sondershausen, 4631. - Zentrales Geol. Institut, Jena.
/5/
Dockter, J., Steinmüller, A. (1993): Erläuterungen zur geologischen Karte von Thüringen
1:25.000 - Blatt Nordhausen Süd, Nr. 4530. - Thüringer Landesanstalt für Bodenforschung,
2. Auflage, Weimar.
/6/
Döhner, C. (1986): Lagerstättengeologische Arbeiten am Kernmaterial von OT-Bohrungen
in der Kaliindustrie der DDR.- Neue Bergbautechnik, Bd. 16, H. 11, S. 409-411, Leipzig.
/7/
Döhner; C. (2001): Regionale Aspekte der Entwicklung des Zechsteins 2 im SüdharzKalirevier. - In: Beiträge zur Geologie von Thüringen. Heft 8, Thüringischer Geologischer
Verein e.V., S. 249-269, 2001, Jena.
/8/
ERCOSPLAN (2014): Kali-Rohstoffe im Freistaat Thüringen - Bergbauhistorischer Abriss
zu den Feldesteilen des Südharz-Unstrut-Kalireviers. - ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH, 65 Seiten, Erfurt, 2014.
/9/
Gotte, W. (1981): Instruktion zur Anwendung der Klassifikation der Lagerstättenvorräte
fester mineralischer Rohstoffe vom 28. August 1979 auf Kali- und Steinsalzlagerstätten
(4. Kali-Instruktion).-Akademie-Verlag Berlin: Zeitschrift für angewandte Geologie. Berlin,
November 1981, Heft 6, S. 287-293.
/10/
JORC (2012): Australasian Code for Reporting of Mineral Resources and Ore Reserves –
The JORC Code 2012 Edition.- The Joint Ore Reserves Committee of the Australasian Institute of Mining and Metallurgy and the Australian Institute of Geoscientists and the Minerals Council of Australia. 20 December 2012.
/11/
Raue (1970): Bergschadenkundliche Analyse - Schachtanlagen Hüpstedt Beberstedt.
Felsenfest. - VEB Kombinat Kali, 15 pages, 15. Juni 1970, Sondershausen.
/12/
Schröder, N.; Blümel, H. (1977): Vorläufige Richtlinie des VEB GFE Halle zur Durchführung
und Auswertung von Kontrolluntersuchungen im Rahmen geologischer Such- und Erkundungsarbeiten auf feste mineralische Rohstoffe. – unpublished report of VEB Geol. Forsch.
u. Erk. Halle, Halle.
/13/
Seidel, G. (2003): Geologie von Thüringen.- E. Schweizbart’sche Verlagsbuchhandlung
(Nägele u. Obermiller), Stuttgart, 601 Seiten.
/14/
Stammberger, F. (1963): Instruktion zur Anwendung der Klassifikation der Lagerstättenvorräte fester mineralischer Rohstoffe auf Kali- und Steinsalzlagerstätten der DDR (3. KaliInstruktion vom 20.06.1963). - Akademie-Verlag Berlin: Zeitschrift für angewandte Geologie. Berlin, Oktober 1963, Heft 10, S. 527-531.
/15/
Stolle, E., Döhner, C. (1970): Zur petrographischen Nomenklatur der Salzgesteine. – Ber.
Deutsch. Ges. geol. Wiss., Geol. Paläont., Berlin 13 (1970) 4, S. 481-493.
/16/
Tinnes, A. (1928): Die Ältere Salzfolge Mitteldeutschlands unter besonderer Berücksichtigung des Unstrutgebietes. - Arch. Lagerstättenforschung, Nr. 38, 55 Seiten.
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E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
/17/
VEB (1963): Bericht über die fazielle Ausbildung des Kaliflözes Staßfurt in Bohrungen. die
im Jahre 1962 vom VEB Erdöl- und Erdgaserkundung Gotha gestoßen wurden. - VEB Geologische Erkundung West, BA Jena, Jena, 15. Mai 1963, 27 Anhänge, 15 Seiten.
/18/
VEB (1966): Ergebnisbericht über die in den Jahren 1963-1965 im Objekt Kali ThüringenWest durchgeführten Bohrungen (Objekt Kali Thüringen-West. Sucharbeiten). – VVB Geologische Forschung und Erkundung, VEB Geologische Erkundung West, BA Jena, Jena,
10. Dezember 1966, 24 Anlagen, 19 Anhänge, 40 Seiten.
/19/
VEB (1980): Ergebnisbericht mit Vorratsberechnung. Vorerkundung Kali Küllstedt. - VEB
Geologische Forschung und Erkundung Freiberg, Jena, 15. August 1980, 140 Anhänge,
229 Seiten.
/20/
VEB (1987): Ergebnisbericht mit Vorratsberechnung. Vorerkundung Kali Keula/Ebeleben
(Teil Vorratsberechnung). - VEB Geologische Forschung und Erkundung Freiberg, Jena,
14. August 1987, 14 Anhänge, 58 Seiten.
/21/
VVB (1963): Ergebnisbericht über die Kalisalzführung des Zechsteins im Südteil der DDR
mit Berechnung prognostischer Vorräte. – Zentrales Geologisches Institut, Wissenschaftlich-Technisches Zentrum der VVB Feste Minerale Berlin, Berlin. 31. Dezember 1963, 86
Anhänge, 234 Seiten.
/22/
VVB Feste Minerale (1964): Ergebnisbericht über die Kalisalzführung des Zechsteins im
Südteil der DDR mit Berechnung prognostischer Vorräte.- VVB Feste Minerale, Berlin, 30.
Juni 1964, 214 Seiten.
Page 49 of 54
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Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
GLOSSARY
Term
Explanation
3. Kali-Instruktion
Guideline for the classification of solid mineral resources of
rock salt and potash deposits in the former German Democratic Republic (GDR). Released on 20 June 1963. English
rd
translation: 3 Potash Instruction Guideline.
4. Kali-Instruktion
Revised version of the 3. Kali-Instruktion. Released on 17
th
November 1981. English translation: 4 Potash Instruction
Guideline.
Anhydrite
Sulphate-bearing mineral with the chemical formula CaSO4.
Bemusterungsanweisung
Instructions for correct sampling procedure in mines. English
translation: sampling instructions.
Bemusterungshauer
Professionals working in mines, responsible for the correct
sampling of rocks in mining drives. English translation: sampling faceworker.
Bundesberggesetz
Federal Mining Law of Germany, which covers the prospection and exploration as well as the mining of commodities
and, furthermore, the closure of mines. The law was enacted
on 13 August 1980 and came into force on 01 January 1982.
Abbreviation: BBergG. English translation: Federal Mining
Act.
Carnallite
Potassium-bearing mineral with the chemical formula
KCl·MgCl2·6H2O.
Carnallitite
Potassium-bearing rock consisting mainly of the minerals
Carnallite, Halite, Kieserite and Anhydrite.
Eichsfeld-Schwelle
Southern part of the uplifted area of the Eichsfeld-AltmarkSchwelle, which delimits the Thüringer Becken to the west.
English translation: Eichsfeld swell.
Evaporite horizons
/section/formation
All evaporite-bearing horizons of the Zechstein Cycles 1 to 4
(Werra Formation, Stassfurt Formation, Leine Formation,
Aller Formation).
Freistaat Thüringen
One of the 16 states of Germany, located almost in the centre
of the country. The total area is approx. 16,172 km², the capital is Erfurt.Approx. 2.2 million people live in the state. English
translation: Federal State of Thuringia.
Finne-Störung
Actual name: Finne-Störungszone. This fault zone runs from
the southeast to the northwest in the northeastern part of the
Thüringer Becken. English translation: Finne fault (zone).
Gesellschaft zur Verwahrung
und Verwertung von stillgelegten
Bergwerkbetrieben GmbH
Company responsible for the decommissioning and closure of
mines in the Federal States of Saxony and Thuringia and in
the State of Saxony-Anhalt, which were closed between 1990
and 1991 due to economic reasons.
Glaserite
Potassium-bearing mineral with the chemical formula
K3Na(SO4)2.
Halite
Chloride-bearing mineral with the chemical formula NaCl.
Page 50 of 54
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Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
Term
Explanation
Harz
Highlands covering the intersection point of the states of
Lower Saxony, Saxony-Anhalt and Thuringia.
Hermundurische Scholle
Nappe structure in the northeast of the Thüringer Becken
ranging from Gera in the south-southeast to Nordhausen in
the northwest. To the southwest, it is delimited by the FinneStörung. English translation: Hermundurian nappe.
Hessisches Bergland
Highlands, mainly located in the State of Hesse and at the
western margin of the Thüringer Becken. English translation:
Hessian Mountains.
Kainite
Potassium-bearing mineral with the chemical formula
KCl·MgSO4·3H2O.
Kieserite
Sulphate-bearing mineral with the chemical formula
MgSO4·H2O.
Küllstedt Exploration Licence
Area
Licence area held by EAST EXPLORATION. Its extent is
defined by the official licence documents.
Kupferschiefer
Marine calcareous claystone of the Middle-European Upper
Permian, locally enriched with sulphur-bearing copper, zinc
and lead minerals.
Langbeinite
Potassium-bearing mineral with the chemical formula
K2SO4·2MgSO4.
Leinefelder Sattel
Anticline structure in the WNW of the Thüringer Becken. English translation: Leinefeld anticline.
Mühlhausen-Altengottern-Mulde
Synclinal structure between Mühlhausen and Altengottern
with a NW-SE trend.
Objekt Kali Küllstedt
Project defined by the VEB Kombinat Kali, for which exploration for potash in the area around Küllstedt was conducted
between 1975 and 1978.
Ohmgebirge-Grabenzone
Graben system in the northwest of the Thüringer Becken with
a NNE-SSW trend.
Potash-bearing section, potash
seam/section
Part of the stratigraphical succession of the Zechstein in the
South Harz Potash District, which contains the potassiumbearing minerals. The seam can range from the hanging wall
rocks (Deckanhydrit and Decksteinsalz) of the actual potashbearing section, the Kaliflöz Stassfurt (z2KSt), to the upper
parts of the Stassfurt-Steinsalz (z2NA) below the Kaliflöz
Stassfurt (z2KSt). Equivalent names are potash horizon or
potash deposit.
Polyhalite
Potassium-bearing mineral with the chemical formula
K2SO4·MgSO4·2CaSO4·H2O.
Preussisches Ministerium für
Öffentliche Arbeit
Ministry in the former Kingdom of Prussia responsible for
development of the infrastructure. English translation: Prussian Ministry for Public Works.
Schlotheimer Graben
Graben structure at Schlotheim, which affected the parts of
the Zechstein in the Pöthen Mine.
South Harz Potash District
Northern part of the Thüringer Becken where potash was
explored and mined between 1888 and 1993.
Page 51 of 54
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projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
Term
Explanation
Sylvinite
Potassium-bearing rock consisting mainly of Sylvite and Halite. Subordinately, Polyhalite, Langbeinite, Kieserite, Kainite
and Anhydrite may occur.
Sylvite
Potassium-bearing mineral with the chemical formula KCl.
Thüringer Becken
Geological structure in the central and northern part of the
Federal State of Thuringia. It extends from the upper reaches
of the Unstrut Rivier south of Dingelstädt to the lower reaches
of the Ilm River at Bad Sulza in the WNW-ESE direction (approx. 90 km). In the NNE to SSW direction, it extends from
break-through of the Wipper River south of Seegas to the
inflow of the Gera River at Arnstadt (approx. 55 km). The total
area is about 2,700 km². English translation: Thuringian Basin.
Thüringer Landesbergamt
Higher Federal State Authority, which is responsible for the
execution of the mining law. English translation: Thuringian
State Mining Authority.
Thüringer Wald
Highlands south of the Thüringer Becken. English translation:
Thuringian Forest.
Tonlöser
Clay-rich intercalations in the evaporite sections that reduce
the overall strength of the rock.
Trümmercarnallitit
Potassium-bearing rock with mainly brecciated Halite and
Anhydrite embedded in a carnallitic matrix. English translation: shatter carnallitite.
VEB Geophysik
Actual name: VEB Kombinat Geophysik. The company was
responsible for geophysical measurements, especially during
exploration of commodities.
VVB Kali
Central administration responsible for the supervision of all
potash-producing mines of the former GDR. The abbreviation
VVB stands for Vereinigung Volkseigener Betriebe (union of
publicly owned companies).
VEB Kalibetrieb “Südharz”
Part of the VEB Kombinat Kali responsible for the supervision
of the Sondershausen, Rossleben, Sollstedt, Bleicherode,
Bischofferode and Volkenroda Mines.
VEB Kombinat Kali
Successor of the VVB Kali, founded January 1 , 1970. The
abbreviation VEB stands for Volkseigener Betrieb (publicly
owned company).
VEB Kombinat Kali, DB Forschung
Department of the VEB Kombinat Kali responsible for research. The abbreviation DB stands for Direktionsbereich
(department).
Wippertal-Störungszone
NW-SE trending fault zone in the northwest of the Thüringer
Becken. English translation: Wippertal fault zone.
st
Page 52 of 54
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Arnstaedter Strasse 28, 99096 Erfurt, Germany
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Fax: +49 361 3810 505
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Web: http://www.ercosplan.com
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Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
LIST OF ABBREVIATIONS
Abbreviations of physical units/constants used throughout this study are as follows:
B
boron
Ca
calcium
CaSO4
calcium sulphate
d
day(s)
E
east
ESE
east-southeast
Fe
iron
g/cm³
gram(s) per cubic centimetre
H 2O
water
ha
hectare(s)
K
potassium
K 2O
potassium oxide
KCl
potassium chloride
km
kilometre(s)
km²
square kilometre(s)
km³
cubic kilometre(s)
m
metre(s)
m²
square metre(s)
m³
cubic metre(s)
Mg
magnesium
MgCl2
magnesium chloride
MgSO4
magnesium sulphate
mm
millimetre
Mt
million metric tonnes
NaCl
sodium chloride
NNE
north-northeast
NNW
north-northwest
NW
northwest
SE
southeast
SSW
south-southwest
t
metric tonne
t/m³
metric tonne(s) per cubic metre
W
west
WNW
west-northwestern
Page 53 of 54
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Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
Küllstedt Exploration Licence Area, Thuringia, Germany
EGB 12-043.N01
WSW
west-southwest
°C
degree(s) Celsius
%
percent
Page 54 of 54
ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH
Arnstaedter Strasse 28, 99096 Erfurt, Germany
Phone: + 49 361 3810 500
Fax: +49 361 3810 505
E-mail: mining@ercosplan.com
Web: http://www.ercosplan.com
projekte:@Projekte EGB aktuell:EGB_12-043_DS_PotashAssets_Germany:03proj_AUSLIEFERUNG:N01:JORC_Kuellstedt_final:12-043N01_JORC_Kuellstedt_2015-0331.docx
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4370000
4375000
4380000
4385000
4390000
4395000
4400000
4405000
4370000
4375000
4380000
4385000
4390000
4395000
4400000
4405000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4410000
5690000
5685000
5680000
5680000
5685000
5690000
5695000
4365000
phone: +49 361 3810 500
fax:
+49 361 3810 505
5695000
4360000
Arnstaedter Strasse 28
99096 Erfurt/Germany
5°E
10°E
15°E
5675000
5675000
55°N
50°N
5670000
5670000
50°N
10°E
4360000
15°E
4365000
4410000
JORC Küllstedt Licence Area
Appendix 1
Topographic Map Showing
Location and Available
Infrastructure of the
Küllstedt Exploration
Licence Area
Legend:
Küllstedt Exploration Licence Area
Scale:
0
1:100.000
2.500
5.000 m
Coordinate System: DHDN 3 Degree Gauss Zone 4
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB_12-043.N01_Appendix_1_topographicMap.pdf
APPENDIX 2
C o p y of O ffici a l Lic e nc e
D o c u me n t for K ül l s te dt
Ex pl or ati o n Li ce n c e Are a
Client:
East Exploration Pty Ltd
Level 2, 350 Little Collins Street
Melbourne, Victoria 3000
Australia
Bidder:
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
Arnstaedter Strasse 28
99096 Erfurt
Germany
Project Reference:
EGB 12-043.N01
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
Arnstaedter Strasse 28
99096 Erfurt
Germany
Tel.:
+49 361 3810 500
Fax:
+49 361 3810 505
E-Mail: mining@ercosplan.com
Web:
www.ercosplan.com
Managing Director: Dr Henry Rauche
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4385000
4390000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4400000
5700000
4380000
phone: +49 361 3810 500
fax:
+49 361 3810 505
5700000
4375000
Arnstaedter Strasse 28
99096 Erfurt/Germany
4395000
Felsenfest 17 (Deutschland 25)
Kal Neusollstedt 1 (Rehungen 1)
Kal Felsenfest 9 (Deutschland 24)
B
5695000
Kal Neusollstedt 7
Kal Felsenfest 10 (Deutschland 19)
Gerterode 1/1961
Kal Vollenborn 1/1960
Kal Felsenfest 13 (Deutschland 21)
Kal Felsenfest 12 (Deutschland 23)
Kal Felsenfest 7 (Deutschland 16)
Ca Hüpstedt 2/1963
C
Kal Felsenfest 11 (Deutschland 20)
Ca Zaunröden 08/1962
Kal Felsenfest 8 (Deutschland 18)
5690000
Kal Felsenfest 6 (Deutschland 15)
Kal Schacht Hüpstedt
Kal Schacht Felsenfest 1909/1
Kal Keula 6a/1978
Kal Keula 5/1977
5690000
5695000
Kal Felsenfest 1
Kal Felsenfest 5 (Deutschland 17)
Kal Felsenfest 3/1906
E Keula 2/1961
E Sollstedt 1/1962
Kal Eigenrode 3/1977
Kal Keula 7/1982
Kal Beberstedt 1/1961
Kal Eigenrode 2/1976
Kal Küllstedt 2/1964
5685000
Kal Zella 1/1965
Windeberg 1/1975
Kal Kaisershagen 2/1975
Kal Kaisershagen 4/1977
E Küllstedt 1/1966
Kal Zella 3/1977
Kal Küllstedt 1/1962
Kal Zella 4/1978
Kal Eigenrode 1/1965
5685000
Kal Felsenfest 18 (Deutschland 22)
Kal Wachstedt 1/1963
Kal Keula 6/1978
E Sollstedt 2/1962
Kal Schacht Beberstedt 1910
Windeberg 3/1983
Kal Horsmar 2/1975
Kal Windeberg 2/1975
Kal Bickenriede 1/1975
Kal Dachrieden 1/1975
Kal Horsmar 1/1961
Kal Bickenriede 2/1975
Kal Dachrieden 2/1975
5680000
5680000
Kal Lengefeld 2/1976
Kal Bickenriede 4/1976
Kal Bickenriede 3/1976
E Hainich-Eigenrieden 4/1962
E Hainich-Eigenrieden 2/1961
D
Kal Hollenbach 3/1977
5675000
E Hainich-Eigenrieden 1/1961
5675000
A
5670000
5670000
Kb Mühlhausen 001
4375000
4380000
4385000
4390000
4395000
JORC Küllstedt Licence Area
Legend:
Appendix 3
Map of Available
Drill Holes from Different
Exploration Campaigns
and Shaft Sinking
Modelling Area
Küllstedt Exploration Licence Area
Location of Cross-Sections (Appendix 8)
Existing Drill Holes
With Potash Information
4400000
Scale:
0
1:75.000
2.500
5.000 m
Without Potash Information
Coordinate System: DHDN 3 Degree Gauss Zone 4
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_3_DrillHoleLocations.pdf
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Beberstedt
Remark
1/1961
Easting
Northing
Elev. (MSL)
4388266.29 5685439.18
341.30
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
45.00
45.00
45.00
101.00
56.00
101.00
210.00
109.00
0.00
210.00
364.00
154.00
364.00
514.00
150.00
514.00
831.00
317.00
0.00
831.00
835.90
4.90
835.90
836.00
0.10
836.00
847.00
11.00
0.00
0.00
847.00
881.00
34.00
881.00
907.00
26.00
0.00
907.00
915.60
8.60
915.60
916.00
0.40
0.00
916.00
939.80
23.80
939.80
961.20
21.40
961.20
965.50
4.30
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Percentage
[K2O%]
0.00
0.00
0.00
0.00
916.00
916.75
sylvinite,
0.75 depleted
6.70
916.75
927.50
10.75 carnallitite
11.50
Last updated: 09 February 2015
Page 1 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
E HainichEigenrieden
Remark
2/1961
Easting
Northing
Elev. (MSL)
4380897.62 5678133.15
470.60
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
108.50
108.50
0.00
108.50
248.00
139.50
248.00
391.00
143.00
391.00
718.00
327.00
0.00
0.00
718.00
719.50
1.50
719.50
726.50
7.00
726.50
728.50
2.00
728.50
730.00
1.50
730.00
767.50
37.50
767.50
803.00
35.50
803.00
806.00
3.00
806.00
809.50
3.50
0.00
0.00
0.00
809.50
833.00
23.50
833.00
838.00
5.00
838.00
878.00
40.00
878.00
882.48
4.48
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
811.80
813.40
1.60
10.00
813.40
814.40
1.00
6.00
814.40
816.00
1.60
9.00
816.00
818.20
2.20
6.00
818.20
822.20
4.00
8.50
Last updated: 09 February 2015
Page 2 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Eigenrode
Remark
3/1977
Easting
Northing
Elev. (MSL)
4390358.47 5686170.63
370.00
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
36.50
36.50
36.50
97.00
60.50
97.00
198.50
101.50
0.00
198.50
354.50
156.00
354.50
502.00
147.50
502.00
829.50
327.50
829.50
835.20
5.70
0.00
0.00
835.20
847.80
12.60
847.80
848.40
0.60
848.40
851.00
2.60
851.00
891.40
40.40
891.40
923.95
32.55
923.95
935.48
11.53
935.48
941.16
5.68
941.16
943.14
1.98
943.14
944.45
1.31
944.45
945.96
1.51
945.96
1008.00
62.04
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
944.45
Last updated: 09 February 2015
945.96
1.51 sylvinite
?
Page 3 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
E Küllstedt
Remark
1/1966
Easting
Northing
Elev. (MSL)
4384187.94 5684003.30
410.90
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
56.00
56.00
56.00
93.00
37.00
93.00
193.00
100.00
0.00
193.00
446.65
253.65
446.65
484.00
37.35
484.00
802.00
318.00
802.00
816.20
14.20
0.00
816.20
816.40
0.20
816.40
821.80
5.40
821.80
822.20
0.40
822.20
823.40
1.20
823.40
840.00
16.60
840.00
873.75
33.75
873.75
875.90
2.15
875.90
879.25
3.35
879.25
880.55
1.30
880.55
880.80
0.25
880.80
888.25
7.45
888.25
906.00
17.75
Fault
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Percentage
[K2O%]
0.00
0.00
0.00
0.00
Page 4 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest
Remark
1
Easting
Northing
Elev. (MSL)
4389830.13 5692703.37
294.00
From
To
Thickness (m )
0.00
0.30
0.30
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.30
427.90
427.60
0.00
0.00
0.00
0.00
427.90
430.28
2.38
430.28
440.00
9.72
440.00
440.90
0.90
440.90
479.10
38.20
0.00
479.10
494.00
14.90
0.00
0.00
0.00
494.00
530.90
36.90
530.90
532.02
1.12
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Percentage
[K2O%]
0.00
0.00
0.00
0.00
Page 5 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest
Remark
3/1906
Easting
Northing
Elev. (MSL)
4389921.62 5690047.33
477.00
From
To
Thickness (m )
0.00
1.50
1.50
0.00
0.00
0.00
0.00
0.00
0.00
1.50
115.20
113.70
0.00
0.00
0.00
115.20
680.30
565.10
0.00
0.00
0.00
0.00
0.00
680.30
680.50
0.20
0.00
0.00
0.00
680.50
766.50
86.00
766.50
810.50
44.00
0.00
810.50
826.40
15.90
0.00
826.40
827.65
1.25
827.65
850.30
22.65
850.30
882.80
32.50
882.80
883.50
0.70
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
827.65
832.85
5.20 sylvinite
22.29
832.85
835.85
3.00 carnallitite
10.79
Last updated: 09 February 2015
Page 6 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest 5
(Deutschlan
Remark
d 17)
Easting
Northing
Elev. (MSL)
4388608.77 5689760.74
460.00
From
To
Thickness (m )
0.00
0.30
0.30
0.00
0.00
0.00
0.00
0.00
0.00
0.30
103.00
102.70
0.00
0.00
0.00
103.00
699.50
596.50
0.00
0.00
0.00
0.00
0.00
699.50
699.95
0.45
0.00
0.00
0.00
699.95
771.75
71.80
771.75
812.25
40.50
0.00
812.25
821.65
9.40
0.00
0.00
821.65
832.53
10.88
832.53
853.50
20.97
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
821.65
Last updated: 09 February 2015
832.53
10.88 carnallitite
Page 7 of 39
9.70
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest 6
(Deutschlan
Remark
d 15)
Easting
Northing
Elev. (MSL)
4390649.99 5691340.07 k.A.
From
To
Thickness (m )
0.00
15.00
15.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15.00
519.00
504.00
519.00
528.50
9.50
0.00
0.00
0.00
0.00
0.00
0.00
528.50
566.00
37.50
0.00
566.00
576.20
10.20
0.00
0.00
576.20
584.30
8.10
584.30
619.25
34.95
619.25
620.55
1.30
620.55
625.00
4.45
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
576.20
Last updated: 09 February 2015
584.30
8.10 ?
?
Page 8 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest 7
(Deutschlan
Remark
d 16)
Easting
Northing
Elev. (MSL)
4392950.02 5691520.09
354.00
From
To
Thickness (m )
0.00
5.00
5.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5.00
510.53
505.53
0.00
0.00
0.00
0.00
510.53
511.73
1.20
511.73
515.92
4.19
0.00
515.92
549.45
33.53
0.00
549.45
557.30
7.85
0.00
0.00
557.30
561.60
4.30
0.00
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
557.30
Last updated: 09 February 2015
561.60
potash
4.30 salts
?
Page 9 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest 8
(Deutschlan
Remark
d 18)
Easting
Northing
Elev. (MSL)
4387583.64 5691614.26
360.00
From
To
Thickness (m )
0.00
15.00
15.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15.00
506.00
491.00
0.00
0.00
0.00
0.00
0.00
506.00
513.80
7.80
513.80
551.88
38.08
551.88
587.88
36.00
0.00
587.88
600.00
12.12
0.00
0.00
600.00
613.75
13.75
613.75
639.00
25.25
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
600.00
600.50
0.50 sylvinite
17.20
600.50
606.00
5.50 carnallitite
10.40
Last updated: 09 February 2015
Page 10 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Felsenfest 9
(Deutschlan
Remark
d 24)
Easting
Northing
Elev. (MSL)
4390780.05 5692189.98
314.00
From
To
Thickness (m )
0.00
0.50
0.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.50
461.28
460.78
0.00
0.00
0.00
0.00
0.00
0.00
0.00
461.28
499.50
38.22
0.00
499.50
511.13
11.63
0.00
0.00
511.13
519.60
8.47
519.60
522.10
2.50
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
511.13
Last updated: 09 February 2015
519.60
potash
8.47 salts
?
Page 11 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
10
(Deutschlan
Remark
d 19)
Easting
Northing
Elev. (MSL)
4390700.06 5691370.05
366.00
From
To
Thickness (m )
0.00
14.82
14.82
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
14.82
520.00
505.18
0.00
0.00
0.00
0.00
520.00
521.00
1.00
521.00
529.30
8.30
0.00
529.30
564.90
35.60
0.00
564.90
573.50
8.60
0.00
573.50
574.10
0.60
574.10
583.35
9.25
583.35
584.86
1.51
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
574.10
Last updated: 09 February 2015
583.35
probably
sylvinite +
9.25 carnallitite
Page 12 of 39
14.00
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
11
(Deutschlan
Remark
d 20)
Easting
Northing
Elev. (MSL)
4392969.99 5691470.03
356.00
From
To
Thickness (m )
0.00
0.85
0.85
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.85
528.00
527.15
528.00
532.00
4.00
0.00
0.00
0.00
0.00
0.00
0.00
532.00
563.00
31.00
0.00
563.00
570.28
7.28
0.00
0.00
570.28
628.28
58.00
628.28
633.00
4.72
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
570.28
572.28
2.00 sylvinite
10.20
572.28
628.28
56.00 carnallitite
10.56
Last updated: 09 February 2015
Page 13 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
12
(Deutschlan
Remark
d 23)
Easting
Northing
Elev. (MSL)
4389415.44 5691619.38
352.00
From
To
Thickness (m )
0.00
0.50
0.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.50
502.00
501.50
0.00
0.00
0.00
502.00
503.00
1.00
0.00
0.00
0.00
503.00
541.30
38.30
0.00
541.30
549.91
8.61
0.00
549.91
551.00
1.09
0.00
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Percentage
[K2O%]
0.00
0.00
0.00
0.00
Page 14 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
13
(Deutschlan
Remark
d 21)
Easting
Northing
Elev. (MSL)
4389505.37 5691615.70
356.00
From
To
Thickness (m )
0.00
3.05
3.05
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3.05
502.00
498.95
0.00
0.00
0.00
0.00
0.00
0.00
0.00
502.00
536.50
34.50
0.00
536.50
544.75
8.25
544.75
546.51
1.76
546.51
548.91
2.40
548.91
570.41
21.50
570.41
606.67
36.26
606.67
615.55
8.88
615.55
645.00
29.45
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
548.91
Last updated: 09 February 2015
570.41
21.50 carnallitite
Page 15 of 39
11.30
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
17
(Deutschla
Remark
nd 25)
Easting
Northing
Elev. (MSL)
4392550.1
5693540
335
From
To
Thickness (m )
0.00
1.20
1.20
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.20
455.10
453.90
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
455.10
514.50
59.40
0.00
514.50
529.80
15.30
0.00
529.80
543.70
543.70
553.20
Percentage
[K2O%]
13.90
9.50
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Page 16 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
18
(Deutschla
Remark
nd 22)
Easting
Northing
Elev. (MSL)
4391790.01 5689339.95
461.00
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
94.27
94.27
0.00
0.00
0.00
94.27
702.30
608.03
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
702.30
720.00
17.70
720.00
828.00
108.00
0.00
828.00
839.60
11.60
0.00
839.60
841.90
2.30
841.90
872.10
30.20
872.10
882.00
9.90
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
841.90
842.40
0.50 sylvinite
842.40
872.10
29.70 carnallitite
Last updated: 09 February 2015
Page 17 of 39
10.24
APPENDIX 4
Geological Drill Hole Logs
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
Gerterode
Remark
1/1961
Easting
Northing
Elev. (MSL)
4394910.6 5693901.9
307.4
From
To
Thickness (m )
0.00
15.00
15.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
15.00
100.00
85.00
100.00
430.00
330.00
430.00
436.50
6.50
0.00
436.50
442.45
458.50
442.45
458.50
500.00
500.00
528.24
528.24
538.43
559.18
538.43
559.18
560.10
Percentage
[K2O%]
Dissolutio
n residue
Drill Hole
Location
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
16.05
41.50
0.00
28.24
0.00
0.00
10.19
20.75
0.92
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Page 18 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Bickenriede
Remark
1/1975
Easting
Northing
Elev. (MSL)
4384003.89 5682397.38
360.80
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
39.00
39.00
39.00
86.00
47.00
86.00
183.00
97.00
0.00
183.00
332.00
149.00
332.00
470.00
138.00
470.00
800.00
330.00
800.00
805.00
5.00
0.00
0.00
805.00
811.50
6.50
811.50
812.00
0.50
812.00
812.80
0.80
812.80
861.40
48.60
861.40
892.00
30.60
892.00
894.20
2.20
894.20
898.95
4.75
898.95
899.50
0.55
899.50
900.75
1.25
900.75
901.24
0.49
901.24
948.09
46.85
948.09
951.04
2.95
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
900.75
901.24
0.49 sylvinite
901.24
902.84
1.60 hartsalz
Last updated: 09 February 2015
Page 19 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Bickenried
Percentage
Remark
[K2O%]
e 2/1975
Easting
Northing
Elev. (MSL)
4385911.48 5682052.17
304.50
From
To
Thickness (m )
0.00 q
0.00 t
0.00 kr
0.00 j
0.00 k
0.00
0.00
0.00 m
0.00
43.00
43.00 mo
43.00
103.00
60.00 mm
103.00
200.50
97.50 mu
0.00 s
200.50
350.50
150.00 so
350.50
496.00
145.50 sm
496.00
826.00
330.00 su
826.00
832.00
6.00
0.00 z7-z4Tb
0.00 z4ANb
832.00
837.00
5.00 z4NA
837.00
837.50
0.50 z4ANa
837.50
839.00
1.50 z4Ta-z3Tb
839.00
870.60
31.60 z3NA
870.60
900.50
29.90 z3AN
900.50
903.20
2.70 z3CA
903.20
906.26
3.06 z3Ta-z2Tb
906.26
906.88
0.62 z2ANb
906.88
907.22
0.34 z2NAr
907.22
909.09
1.87 z2KSt
909.09
909.77
0.68 z2NA
Fault
z2ANa
0.00 z2CA
909.77
1036.75
126.98 z1ANc
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
z1NA
z1ANa
z1CA
z1Ta
907.22
909.09
1.87 sylvinite
909.09
910.09
1.00 carnallitite
Last updated: 09 February 2015
Page 20 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Bickenriede
Remark
4/1976
Easting
Northing
Elev. (MSL)
4383930.98 5680123.33
328.60
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
55.00
55.00
55.00
121.50
66.50
121.50
221.00
99.50
0.00
221.00
341.50
120.50
341.50
495.00
153.50
495.00
824.00
329.00
824.00
831.00
7.00
0.00
0.00
831.00
835.10
4.10
835.10
835.90
0.80
835.90
836.50
0.60
836.50
854.50
18.00
854.50
890.57
36.07
890.57
893.15
2.58
893.15
902.12
8.97
902.12
903.34
1.22
0.00
903.34
905.11
1.77
905.11
930.70
25.59
930.70
933.71
3.01
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
903.34
Last updated: 09 February 2015
905.11
polyhalitehalitite to
polyhalite1.77 Anhydrite
Page 21 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Eigenrode
Remark
2/1976
Easting
Northing
Elev. (MSL)
4392619.06 5686039.86
427.40
From
To
Thickness (m )
0.00
4.00
4.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
4.00
13.00
9.00
13.00
78.50
65.50
78.50
178.00
99.50
0.00
178.00
338.00
160.00
338.00
491.00
153.00
491.00
823.50
332.50
823.50
829.50
6.00
0.00
0.00
829.50
840.00
10.50
840.00
840.50
0.50
840.50
844.50
4.00
844.50
905.30
60.80
905.30
946.84
41.54
946.84
949.07
2.23
949.07
956.28
7.21
956.28
957.60
1.32
957.60
958.55
0.95
958.55
964.35
5.80
964.35
990.78
26.43
990.78
994.45
3.67
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
958.55
959.15
0.60 sylvinite
959.15
962.08
2.93 carnallitite
962.08
964.35
2.27 carnallitite
Last updated: 09 February 2015
Page 22 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal Horsmar
Remark
1/1961
Easting
Northing
Elev. (MSL)
4387934.90 5682998.38
318.90
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
12.50
12.50
0.00
12.50
65.00
52.50
65.00
225.00
160.00
225.00
376.00
395.00
376.00
395.00
843.00
843.00
849.70
850.00
863.70
866.20
868.50
916.00
849.70
850.00
863.70
866.20
868.50
916.00
953.50
953.50
962.00
962.00
963.00
963.00
979.15
997.00
979.15
997.00
1001.40
z1CA
z1T
z1C
c
z2KSt
Percentage
[K2O%]
0.00
151.00
19.00
448.00
0.00
6.70
0.30
13.70
2.50
2.30
47.50
37.50
0.00
8.50
1.00
0.00
16.15
17.85
4.40
0.00
0.00
0.00
0.00
0.00
0.00
963.00
964.15
rock salt,
1.15 kieseritic
964.15
969.20
5.05 sylvinite
14,8%;
Langbeinite +
Polyhalite:
10,6%
969.20
979.15
9.95 rock salt
Sylvite: 7,7%; L
Last updated: 09 February 2015
Page 23 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Horsmar
Remark
2/1975
Easting
Northing
Elev. (MSL)
4389821.61 5682887.63
301.40
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
52.00
52.00
52.00
120.00
68.00
120.00
218.00
98.00
0.00
218.00
372.00
154.00
372.00
520.00
148.00
520.00
843.00
323.00
843.00
849.20
6.20
0.00
0.00
849.20
860.50
11.30
860.50
861.50
1.00
861.50
863.30
1.80
863.30
902.50
39.20
902.50
939.90
37.40
939.90
941.49
1.59
941.49
947.61
6.12
947.61
950.14
2.53
950.14
950.75
0.61
950.75
955.69
4.94
955.69
982.57
26.88
982.57
987.22
4.65
987.22
988.73
1.51
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
polyhaliticanhydritic
sylvite1.33 halitite
950.75
952.08
952.08
955.69
955.69
958.89
958.89
959.76
3.61 carnallitite
carnallitite,
3.20 depleted
anhydriticsylvinitic
0.87 halitite
959.76
965.36
anhydritic
5.60 halitite
Last updated: 09 February 2015
Page 24 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Kaisershage
Remark
n 2/1975
Easting
Northing
Elev. (MSL)
4393876.85 5685066.06
404.90
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
34.00
34.00
34.00
95.00
61.00
95.00
194.00
99.00
0.00
194.00
356.50
162.50
356.50
513.00
156.50
513.00
843.00
330.00
843.00
848.50
5.50
0.00
0.00
848.50
865.50
17.00
865.50
866.20
0.70
866.20
869.50
3.30
869.50
922.50
53.00
922.50
966.36
43.86
966.36
968.80
2.44
968.80
976.00
7.20
976.00
977.55
1.55
0.00
977.55
981.67
4.12
981.67
987.49
5.82
Fault
0.00
987.49
1210.47
222.98
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
977.55
981.67
impoverish
ment Anhydrite4.12 halitite
985.06
987.49
2.43 carnallitite
Last updated: 09 February 2015
Page 25 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Kaisershage
Remark
n 4/1977
Easting
Northing
Elev. (MSL)
4395265.86 5685488.17
413.70
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
32.00
32.00
32.00
90.00
58.00
90.00
190.00
100.00
0.00
190.00
332.00
142.00
332.00
497.00
165.00
497.00
825.10
328.10
825.10
830.50
5.40
0.00
0.00
830.50
846.77
16.27
846.77
848.00
1.23
848.00
849.54
1.54
849.54
888.85
39.31
888.85
929.23
40.38
929.23
931.01
1.78
931.01
942.10
11.09
942.10
943.52
1.42
943.52
949.60
6.08
949.60
955.50
5.90
955.50
994.33
38.83
994.33
995.88
1.55
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
949.60
949.81
0.21 sylvinite
?
949.81
952.30
2.49 carnallitite
?
952.30
955.50
3.20 carnallitite, d?
955.50
956.49
956.49
963.30
0.99 Halitite
?
carnallitite,
highly
?
6.81 depleted
963.30
964.19
964.19
965.45
965.45
966.37
966.37
974.49
974.49
974.67
Last updated: 09 February 2015
0.89 halitite
carnallitite,
1.26 depleted
0.92 halitite
Carnallite8.12 halitite
0.18 halitite
?
?
?
?
?
Page 26 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal Keula
Remark
7/1982
Easting
Northing
Elev. (MSL)
4395336.95 5686977.11
469.10
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
59.50
59.50
59.50
155.00
95.50
0.00
155.00
285.00
130.00
285.00
437.60
152.60
437.60
767.50
329.90
767.50
773.50
6.00
0.00
773.50
773.60
0.10
773.60
782.00
8.40
782.00
783.30
1.30
783.30
789.50
6.20
789.50
875.00
85.50
875.00
914.50
39.50
914.50
916.16
1.66
916.16
921.31
5.15
921.31
922.30
0.99
922.30
923.38
1.08
923.38
926.26
2.88
926.26
947.26
21.00
947.26
948.26
1.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
923.38
923.60
Polyhalite0.22 halitite
?
923.60
925.96
2.36 sylvinite
?
925.96
926.26
0.30 halitite
?
Last updated: 09 February 2015
Page 27 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Küllstedt
Remark
1/1962
Easting
Northing
Elev. (MSL)
4381685.34 5683696.03
398.00
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
32.50
32.50
32.50
78.50
46.00
78.50
175.00
96.50
0.00
175.00
311.50
136.50
311.50
450.00
138.50
450.00
775.00
325.00
0.00
775.00
782.00
7.00
0.00
782.00
791.90
9.90
791.90
793.80
1.90
793.80
797.00
3.20
797.00
843.00
46.00
843.00
884.80
41.80
0.00
884.80
891.90
7.10
891.90
893.80
1.90
893.80
894.90
1.10
894.90
905.25
10.35
905.25
920.40
15.15
920.40
923.60
3.20
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
894.90
896.50
1.60 hartsalz
18.40
891.90
893.50
1.60 sylvinite
18.40
893.50
907.85
14.35 sylvinite
907.85
909.75
1.90 Anhydrite
?
909.75
910.85
910.85
912.45
1.10 sylvinite
1.60 sylvinite
?
912.45
920.90
8.45 rock salt
?
Last updated: 09 February 2015
?
Page 28 of 39
18.40
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Küllstedt
Remark
2/1964
Easting
Northing
Elev. (MSL)
4379817.79 5684892.19
466.30
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
31.00
31.00
31.00
78.00
47.00
78.00
183.50
105.50
0.00
183.50
329.50
146.00
329.50
469.00
139.50
469.00
801.00
332.00
0.00
801.00
807.00
6.00
0.00
807.00
822.50
15.50
822.50
823.00
0.50
823.00
826.50
3.50
826.50
878.50
52.00
878.50
912.50
34.00
0.00
912.50
920.70
8.20
920.70
922.80
2.10
922.80
923.20
0.40
923.20
928.30
5.10
928.30
950.70
22.40
950.70
953.90
3.20
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
924.50
1.30 rock salt
Polyhalite
percentage:
13.7
924.50
925.70
hartsalz,
1.20 depleted
8; Polyhalite
percentage:
23.6
925.70
928.30
2.60 rock salt
923.20
Last updated: 09 February 2015
Page 29 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal
Wachstedt
Remark
1/1963
Easting
Northing
Elev. (MSL)
4377563.46 5685943.34
479.40
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
141.00
141.00
141.00
251.00
387.00
251.00
387.00
717.20
717.20
722.55
722.60
722.55
722.60
801.80
801.80
844.00
844.00
853.40
857.10
860.25
868.60
898.40
853.40
857.10
860.25
868.60
898.40
901.40
z1CA
z1T
z1C
c
z2KSt
Percentage
[K2O%]
0.00
110.00
136.00
330.20
0.00
5.35
0.05
79.20
42.20
0.00
9.40
3.70
3.15
8.35
29.80
3.00
0.00
0.00
0.00
0.00
0.00
0.00
857.10
860.80
Anhydrite +
3.70 Polyhalite ?
860.80
863.95
3.15 rock salt
Polyhalite:
30,8%
863.95
866.60
2.65 sylvinite
16; Polyhalite: 3
866.60
869.05
2.45 carnallitite
869.05
869.60
0.55 sylvinite
Last updated: 09 February 2015
11.30
20,4; Polyhalite
Page 30 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal Zella
Remark
1/1965
Easting
Northing
Elev. (MSL)
4385883.65 5684206.72
370.00
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
42.00
42.00
42.00
100.00
58.00
100.00
207.00
107.00
0.00
207.00
357.00
150.00
357.00
500.50
143.50
500.50
822.00
321.50
0.00
822.00
828.00
6.00
0.00
828.00
842.00
14.00
842.00
879.70
879.70
884.70
887.95
889.50
893.65
970.60
972.40
884.70
887.95
889.50
893.65
970.60
972.40
973.20
z1CA
z1T
z1C
c
z2KSt
Percentage
[K2O%]
37.70
0.00
5.00
3.25
1.55
4.15
76.95
1.80
0.80
0.00
0.00
0.00
0.00
0.00
889.50
892.10
2.60 sylvinite
892.10
893.65
1.55 rock salt
3,5 %
e: 0,8 %
Last updated: 09 February 2015
Page 31 of 39
25.70
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal Zella
Remark
3/1977
Easting
Northing
Elev. (MSL)
4387108.27 5684430.49
285.70
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
52.50
52.50
52.50
151.00
98.50
0.00
151.00
302.00
151.00
302.00
447.00
145.00
447.00
770.00
323.00
770.00
776.10
6.10
0.00
0.00
776.10
789.10
13.00
789.10
791.70
2.60
791.70
794.20
2.50
794.20
865.40
71.20
865.40
898.20
32.80
898.20
900.10
1.90
900.10
903.66
3.56
903.66
906.16
2.50
906.16
906.60
0.44
906.60
917.36
10.76
917.36
947.91
30.55
947.91
949.53
1.62
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
906.60
907.08
sylvinite,
0.48 depleted
907.08
915.65
8.57 carnallitite
915.65
915.90
0.25 sylvinite
915.90
917.36
Anhydrite1.46 halitite
Last updated: 09 February 2015
Page 32 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Kal Zella
Remark
4/1978
Easting
Northing
Elev. (MSL)
4386175.21 5682975.32
337.40
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
48.00
48.00
48.00
115.00
67.00
115.00
212.00
97.00
0.00
212.00
363.00
151.00
363.00
508.00
145.00
508.00
829.40
321.40
829.40
835.60
6.20
0.00
0.00
835.60
843.30
7.70
843.30
844.10
0.80
844.10
846.10
2.00
846.10
884.80
38.70
884.80
909.70
24.90
909.70
910.70
1.00
910.70
915.50
4.80
915.50
916.70
1.20
916.70
924.66
953.43
924.66
953.43
955.30
z1CA
z1T
z1C
c
z2KSt
Percentage
[K2O%]
7.96
28.77
1.87
0.00
0.00
0.00
0.00
0.00
0.00
918.40
919.40
1.00 halitite
?
919.40
920.64
1.24 halitite
?
920.64
921.41
0.77 sylvinite
?
921.41
922.15
0.74 carnallitite
?
922.15
924.21
?
924.21
924.66
2.06 sylvinite
sylvinite,
highly
0.45 depleted
Last updated: 09 February 2015
?
Page 33 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Schacht
Felsenfest
Remark
1909/1
Easting
Northing
Elev. (MSL)
4389249.30 5690004.77
477.12
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
82.50
82.50
0.00
0.00
0.00
82.50
695.00
612.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
695.00
779.00
84.00
779.00
823.00
44.00
0.00
823.00
835.00
12.00
0.00
0.00
835.00
848.00
13.00
848.00
869.50
21.50
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
835.00
Last updated: 09 February 2015
848.00
13.00 ?
?
Page 34 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Schacht
Remark
Hüpstedt
Easting
Northing
Elev. (MSL)
4390290.06 5689830.09
473.93
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
69.00
69.00
0.00
0.00
0.00
69.00
688.32
619.32
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
688.32
691.32
3.00
691.32
780.76
89.44
780.76
831.64
50.88
0.00
831.64
842.00
10.36
0.00
842.00
844.00
2.00
844.00
860.00
16.00
860.00
880.00
20.00
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
844.00
Last updated: 09 February 2015
860.00
16.00 ?
?
Page 35 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Schacht
Beberstedt
Remark
1910
Easting
Northing
Elev. (MSL)
4390363.00 5689788.00
474.15
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
65.00
65.00
0.00
0.00
0.00
65.00
690.47
625.47
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
690.47
705.47
15.00
705.47
781.00
75.53
781.00
826.00
45.00
0.00
826.00
844.00
18.00
0.00
844.00
846.00
2.00
846.00
860.00
14.00
860.00
880.00
20.00
0.00
0.00
0.00
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
846.00
Last updated: 09 February 2015
860.00
14.00 ?
?
Page 36 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
E Sollstedt
Remark
1/1962
Easting
Northing
Elev. (MSL)
4394213.83 5687170.96
468.50
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
54.00
54.00
54.00
160.00
106.00
0.00
160.00
287.00
127.00
287.00
440.00
153.00
440.00
769.50
329.50
0.00
0.00
769.50
771.00
1.50
771.00
783.00
12.00
783.00
786.00
3.00
786.00
829.00
862.00
829.00
862.00
872.00
43.00
33.00
10.00
872.00
874.00
874.00
938.00
942.00
1010.65
938.00
942.00
1010.65
1011.00
2.00
0.00
0.00
64.00
4.00
68.65
0.35
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Percentage
[K2O%]
0.00
0.00
0.00
0.00
Page 37 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Sollstedt
Remark
2/1962
Easting
Northing
Elev. (MSL)
4392032.53 5688907.17
450.30
From
To
Thickness (m )
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
99.50
99.50
0.00
99.50
222.00
122.50
222.00
374.00
152.00
374.00
703.50
329.50
703.50
711.00
7.50
0.00
711.00
713.00
2.00
713.00
724.00
11.00
724.00
725.50
1.50
725.50
729.00
3.50
729.00
793.00
64.00
793.00
836.00
43.00
836.00
840.00
4.00
840.00
847.00
7.00
847.00
857.00
10.00
0.00
857.00
879.00
22.00
879.00
904.00
25.00
904.00
906.00
2.00
906.00
964.00
58.00
964.00
968.20
4.20
Percentage
[K2O%]
0.00
0.00
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
857.00
Last updated: 09 February 2015
879.00
probably
22.00 carnallitite
Page 38 of 39
APPENDIX 4
Geological Drill Hole Logs
Drill Hole
Location
Stratigraphy
q
t
kr
j
k
km
ku
m
mo
mm
mu
s
so
sm
su
z7-z5
z4Tb
z4ANb
z4NA
z4ANa
z4Ta-z3Tb
z3NA
z3AN
z3CA
z3Ta-z2Tb
z2ANb
z2NAr
z2KSt
z2NA
z2ANa
z2CA
z1AN/z1ANa
JORC REPORT
Küllstedt Exploration Licence Area, Thuringia, Germany
Vollenborn
Remark
1/1960
Easting
Northing
Elev. (MSL)
4395973.40 5693237.60
361.01
From
To
Thickness (m )
0.00
168.00
485.60
168.00
485.60
491.00
491.00
491.30
498.00
501.40
503.30
557.90
491.30
498.00
501.40
503.30
557.90
595.90
595.90
607.45
607.45
608.32
638.43
669.16
608.32
638.43
669.16
672.10
Percentage
[K2O%]
168.00
317.60
5.40
0.00
0.30
6.70
3.40
1.90
54.60
38.00
0.00
11.55
0.00
0.87
30.11
30.73
2.94
0.00
0.00
z1CA
z1T
z1C
c
z2KSt
Last updated: 09 February 2015
Page 39 of 39
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4377500
4380000
4382500
4385000
4387500
4390000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4400000
5697500
5695000
5695000
5697500
5700000
4375000
phone: +49 361 3810 500
fax:
+49 361 3810 505
4395000
4397500
5700000
4372500
Arnstaedter Strasse 28
99096 Erfurt/Germany
4392500
5692500
-20
5692500
-100 m
0m
0m
-20
5690000
5690000
-300 m
5687500
5687500
-400 m
5685000
m
5685000
-500
-3
5682500
m
5682500
00
5677500
5677500
5680000
m
5680000
-600
5675000
5672500
5670000
5667500
5667500
5670000
-900
m
-800
m
5672500
-600 m
5675000
-700 m
0m
-30
4372500
4375000
4377500
4380000
4382500
4385000
4387500
4390000
4392500
4395000
4397500
4400000
JORC Küllstedt Licence Area
Legend:
Modelling Area
Depth
Distribution of the Potash Seam
(absolute in [m] related to sea level)
Küllstedt Exploration Licence Area
Existing Drill Holes
With Potash Depth Information
Without Potash Information
Appendix 5
Isobath of the Top of the
Potash-Bearing Horizon in
the Küllstedt Exploration
Licence Area and Main
Potash Facies Distribution
(According to Seidel, 2003)
Facies Distribution of the Stratigraphic
Potash Layer (Seidel 2003)
Major Steps (100 m)
Carnallitite
Minor Steps (20 m)
Rock Salt
Sylvinite, Predominantly
Sylvinite+Carnallitite
Scale:
0
1:75.000
2.500
5.000 m
Coordinate System: DHDN 3 Degree Gauss Zone 4
* -700 m means 700 m below sea level
Date: 2015/04/02
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_5_Isobath.pdf
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4377500
4380000
4382500
4385000
4387500
4390000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4400000
5700000
4375000
phone: +49 361 3810 500
fax:
+49 361 3810 505
4395000
4397500
5700000
4372500
Arnstaedter Strasse 28
99096 Erfurt/Germany
4392500
10,3 m
5697500
20 m
5697500
9,45 m
5695000
5695000
21,5 m
41 m
40 m
14 m
50 m
21,5 m
58 m
9,25 m
8,1 m
30 m
5692500
40 m
5692500
30 m
27,06 m
m
20
5690000
5690000
15,8 m
22,65 m
10,88 m
8,69 m
30,2 m
22 m
3,25 m
10
m
0,89 m
5687500
5687500
10 m
3,29 m
1,51 m
14,67 m
11,5 m
24,89 m
9,36 m
5,82 m
1,7 m
32,3 m
10
9,3 m
2,6 m
5685000
5685000
15,65 m
m
5,45 m
8,62 m
30 m
10 m
8,19 m
34,47 m
30,33 m
20 m
5682500
8,61 m
4,01 m
20 m
6,41 m
1,87 m
5682500
1,6 m
m
10
22,84 m
13,76 m
15,59 m
7,39 m
5680000
5680000
1,77 m
12,8 m
12,75 m
15,13 m
18,3 m
15,58 m
5677500
5677500
20,28 m
19,05 m
5675000
5672500
5670000
5667500
5667500
5670000
5672500
5675000
20
m
4372500
4375000
4377500
4380000
4382500
4385000
4387500
4390000
4392500
Legend:
Modelling Area
4395000
4397500
4400000
JORC Küllstedt Licence Area
Appendix 6
Isopach Map for the
Potash-Bearing Horizon
in the Küllstedt Exploration
Licence Area
Isopachs of the Potash Seam
Distribution of the Potash Seam
Major Step (10 m)
Küllstedt Exploration Licence Area
Minor Step (2 m)
Existing Drill Holes
With Potash Thickness Information
Scale:
Without Potash Information
0
1:75.000
2.500
5.000 m
Coordinate System: DHDN 3 Degree Gauss Zone 4
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_6_Isopach.pdf
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4377500
4380000
4382500
4385000
4387500
4390000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4400000
5700000
4375000
phone: +49 361 3810 500
fax:
+49 361 3810 505
4395000
4397500
5700000
4372500
Arnstaedter Strasse 28
99096 Erfurt/Germany
4392500
5697500
400
5695000
200
30
5695000
200
5697500
72,07
0
4 00
126,34
5692500
5692500
50 0
144,64
123,13
135,04
00
179,2
10
0
6
5690000
5690000
156,68
124,16
186,06
131,07
5687500
183,86
5687500
3
00
0
10
20
0
150,38
20 0
125,83
5685000
5685000
153,2
106,09
329,16
235,04
141,49
79,08
5682500
186,54
5682500
20 0
3 00
50 0
4 00
92,4
200
174,78
2 00
131,72
197,12
5680000
5680000
136,2
83,16
75,38
105,22
10
0
5677500
5677500
73,5
113,45
5675000
5672500
5670000
5667500
5667500
5670000
5672500
5675000
0
10
4372500
4375000
4377500
4380000
4382500
4385000
4387500
4390000
4392500
4395000
4397500
4400000
JORC Küllstedt Licence Area
Appendix 7
K2O Isograde Map for the
Potash-Bearing Horizon in
the Küllstedt Exploration
Licence Area
Legend:
Modelling Area
Thickness x Grade
Distribution of the Potash Seam
Major Steps (100)
Küllstedt Exploration Licence Area
Minor Steps (20)
Existing Drill Holes
With Potash Grade and Thickness Information
Without Potash Information
Scale:
0
1:75.000
2.500
5.000 m
Coordinate System: DHDN 3 Degree Gauss Zone 4
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB_12-043.N01_Appendix_7_potashIsograde.pdf
Arnstaedter Strasse 28
99096 Erfurt/Germany
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
A
SSW
Depth
[m] 0
B
NNE
Cross-Section
WNW-ESE
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
11000
11500
12000
12500
13000
13500
14000
14500
15000
15500
16000
165000
17000
175000
18000
18500
19000
19500
20000
Depth
[m]
Ca Hüpstedt
2/1963
E Hainich-Eigenrieden
2/1961
400
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
phone: +49 361 3810 500
fax:
+49 361 3810 505
Kal Bickenriede
1/1975
E Küllstedt
1/1966
Kal Felsenfest 8
(Deutschland 18)
Kal Felsenfest 13
(Deutschland 21)
Kal Felsenfest 12
(Deutschland 23)
400
Kal Felsenfest 1
200
200
0
0
-200
-200
-400
-400
-600
-600
-800
-800
-1000
-1000
Legend
Oberer Muschelkalk
Salt and Clay of the Aller Formation
Staßfurtsteinsalz
Mittlerer Muschelkalk
Leinesteinsalz
Basalanhydrit
Unterer Muschelkalk
Hauptanhydrit and Plattendolomit
Hauptdolomit
Oberer Buntsandstein
Grauer Salzton
Evaporites of the Werra Formation
Mittlerer Buntsandstein
Decksteinsalz
Base Rock (Lower Permian and older)
Unterer Buntsandstein
Potash-Bearing Horizon (Kaliflöz Staßfurt and
the Upper Part of the Staßfurtsteinsalz)
Drill Holes
JORC Küllstedt Licence Area
APPENDIX 8.1
Geological Cross-Sections for
the Küllstedt Exploration
Licence Area
SSW-NNE Direction
Scale: 1:20,000
0
2,000
4,000 m
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_8.1_SSW-NNE.pdf
Arnstaedter Strasse 28
99096 Erfurt/Germany
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
C
WNW
Depth
[m] 0
400
phone: +49 361 3810 500
fax:
+49 361 3810 505
D
ESE
Cross-Section
SSW-NNE
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
10500
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
11000
11500
12000
12500
13000
Kal Zella 3/1977
13500
14000
14500
15000
15500
16000
165000
17000
175000
18000
18500
19000
19500
20000
Kal Horsmar 2/1975
E Mühlhausen
31/1962
E Mühlhausen
27/1960
20500
21000
21500
22000
E Mühlhausen E Mühlhausen
15/1958
16/1959
E Mühlhausen
08/1957
22500
23000
E Mühlhausen
14/1958
E Mühlhausen
21/1959
23500
24000
24500
25000
Depth
[m]
25500
E Mühlhausen
12/1958
E Mühlhausen
04/1934
E Mühlhausen
22/1959
400
E Mühlhausen
03/1934
200
200
0
0
-200
-200
-400
-400
-600
-600
-800
-800
-1000
-1000
Legend
Oberer Muschelkalk
Salt and Clay of the Aller Formation
Staßfurtsteinsalz
Mittlerer Muschelkalk
Leinesteinsalz
Basalanhydrit
Unterer Muschelkalk
Hauptanhydrit and Plattendolomit
Hauptdolomit
Oberer Buntsandstein
Grauer Salzton
Evaporites of the Werra Formation
Mittlerer Buntsandstein
Decksteinsalz
Base Rock (Lower Permian and older)
Unterer Buntsandstein
Potash-Bearing Horizon (Kaliflöz Staßfurt and
the Upper Part of the Staßfurtsteinsalz)
Drill Holes
JORC Küllstedt Licence Area
APPENDIX 8.2
Geological Cross-Sections for
the Küllstedt Exploration
Licence Area
WNW-ESE Direction
Scale: 1:20,000
0
2,000
4,000 m
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_8.2_WNW-ESE.pdf
ERCOSPLAN Ingenieurgesellschaft
Geotechnik und Bergbau mbH
4375000
4380000
4385000
4390000
4395000
4400000
4405000
4410000
4415000
4420000
4425000
4430000
4435000
4425000
4430000
4435000
e-mail: mining@ercosplan.com
web: http://www.ercosplan.com
4440000
4445000
4440000
4445000
5710000
4370000
phone: +49 361 3810 500
fax:
+49 361 3810 505
5710000
4365000
Arnstaedter Strasse 28
99096 Erfurt/Germany
Kehmstedt-NW
5705000
5705000
Bischofferode-Nord
Kehmstedt
Bleicherode
5700000
5700000
Ohmgebirge
5695000
5695000
Sollstedt
Sondershausen
Im Helbetal
5690000
5690000
Mühlhausen-Nohra
Küllstedt
Am Filsberg
5685000
5685000
Am Hotzenberg
5680000
5680000
Volkenroda
5675000
5670000
5670000
5675000
Ebeleben
4365000
4370000
4375000
4380000
4385000
4390000
4395000
4400000
4405000
4410000
4415000
4420000
JORC Küllstedt Licence Area
Appendix 9
Map of Properties
Adjacent to the Küllstedt
Exploration Licence Area
Legend:
Küllstedt Exploration Licence Area
Adjacent Properties
Scale:
0
1:150.000
5.000
10.000 m
Coordinate System: DHDN 3 Degree Gauss Zone 4
Date: 2015/02/06
O:\@Projekte EGB aktuell\EGB_12-043_DS_PotashAssets_Germany\03proj_AUSLIEFERUNG\N01\
JORC_Kuellstedt_Draft_2015-02-09\EGB 12-043.N01_Appendix_9_adjacentProperties.pdf