Wrap Text
Significant Extensions to Kore’s Existing Sylvinite Deposits Expected
Kore Potash plc
(Incorporated in England and Wales)
Registration number 10933682
ASX share code: KP2
AIM share code: KP2
JSE share code:KP2
ISIN: GB00BYP2QJ94
(“Kore Potash” or the “Company”)
Significant Extensions to Kore’s Existing Sylvinite Deposits Expected
London, England – 21 November 2018 – Kore Potash, the potash development company whose flagship asset is
the 97%-owned Sintoukola Potash Project in the Republic of Congo, is pleased to provide Exploration Targets for
potential extensions of the Kola and Dougou Extension sylvinite Deposits, reported in accordance with the JORC
Code (2012 edition). These Exploration Targets have been identified as part of the work program to improve the
Company’s understanding of both the potential scale and the strategic opportunities presented by the multiple
occurrences of potash in the Sintoukola Project area.
An Exploration Target is not a Mineral Resource but a statement of exploration potential and in this case, is based
on drilling and 2D seismic survey data and the Company’s understanding of the controls on sylvinite mineralisation.
A copy of this announcement including the diagrams and schematics are available on the Company’s website hosted
at http://www.korepotash.com/wp-content/uploads/2018/11/Significant-Extensions-to-Kore’s-Existing-Sylvinite-
Deposits-Expected.pdf.
Highlights
- Potential identified to increase the Company’s sylvinite Deposits to a total of between 1.5 and 1.9 billion tonnes
(Bt) of sylvinite with an average grade of between 34 and 37% KCl.
- The Exploration Targets are as follows and provided in Table 1 and located on Figure 1:
- ‘Kola South’, the potential southward extension to the Kola Deposit
- 95 to 175 Mt
- average grade of between 34 and 42% KCl,
- ‘DX North’, the potential northward extension to the Dougou Extension Deposit
- 320 to 600 Mt
- average grade of between 30 and 38% KCl,
- The potential quantity and grade of an Exploration Target is conceptual in nature and is an approximation. There
has been insufficient exploration at Kola South and DX North to estimate Mineral Resources and it is uncertain if
further exploration will result in the estimation of Mineral Resources.
- The Exploration Targets are immediately adjacent to the Company’s existing sylvinite Mineral Resources which
total 1.08 Bt with an average grade of 35.5% KCl at the Kola and Dougou Extension Deposits.
- The Exploration Targets are within 40 km of the Company’s proposed processing and export facility (Figure 3).
- Insoluble content of the sylvinite within the Exploration Targets is expected to be <0.5% which is extremely low
compared to potash industry averages.
Brad Sampson, CEO of Kore, commented:
“Quantifying the potential scale of the Sylvinite and Carnallite deposits of the Sintoukola project area is important.
It positions the Company to assess the strategic options available for these world-class, shallow and high-grade
Potash deposits while continuing to allow flexibility on the best development pathway for this globally important
Potash province.”
Table 1. Summary of parameters and the Exploration Targets for Kola South and DX North.
KOLA SOUTH
Mid minimum Mid maximum
average average minimum maximum minimum maximum
Area Point average Point average
Seam Thickness density distribution distribution tonnage tonnage
km2 tonnage grade grade grade
(m) (g/cm3) % of area % of area (Mt) (Mt)
(Mt) (KCl%) (KCl%) (KCl%)
TSS - - - - - - - - -
HWSS 23 2.74 2.02 15% 30% 19 29 39 50 56 60
US 23 3.40 2.10 35% 60% 58 79 100 30 34 38
LS 23 2.50 2.11 15% 30% 18 28 37 28 31 34
ALL SEAMS 95 135 175 34 38 42
DX NORTH
Mid minimum Mid maximum
average average minimum maximum minimum maximum
Area Point average Point average
Seam Thickness density distribution distribution tonnage tonnage
km2 tonnage grade grade grade
(m) (g/cm3) % of area % of area (Mt) (Mt)
(Mt) (KCl%) (KCl%) (KCl%)
TSS 185 5.30 2.11 8% 15% 155 233 310 24 29 34
HWSS 185 2.60 2.02 5% 8% 49 64 78 55 59 60
US 185 3.40 2.10 5% 10% 66 99 132 30 34 38
LS 185 2.50 2.11 5% 8% 49 64 78 28 31 34
ALL SEAMS 320 460 600 30 35 38
Note: Rounding errors may exist. Tonnage totals are rounded to the nearest multiple of 5 Mt. Grades are rounded to the nearest
percent
Sylvinite is a rock type comprised primarily of the potash mineral sylvite (KCl), and halite (NaCl) and is the most
important source of potash globally.
Existing sylvinite Mineral Resources
The location of the Kola and Dougou Extension sylvinite Deposits are shown in Figure 1 and 3, along with the adjacent
Exploration Target areas (or ‘target areas’). A table including the existing sylvinite Mineral Resource estimates is
provided below this announcement, reported according to JORC 2012. Kola hosts a Measured and Indicated sylvinite
Mineral Resource totalling 508 Mt with an average grade of 35.4% KCl (Company announcement dated 6 July 2017).
Dougou Extension hosts an Indicated and Inferred sylvinite Mineral Resource totalling 232 Mt with an average grade
of 38.1 % KCl (announcement dated 20 August 2018).
Overview of the Geology
The potash at the Kola and Dougou Extension is hosted by sub-horizontal or gently dipping layers or ‘seams’ within
the upper part of a 400-500 m thick ‘Salt Member’ (‘the Salt’) of the Lower Cretaceous-aged Loeme Evaporite
formation (Figure 2). The evaporite rocks extend from approximately 50 km inland to over 200 km offshore and is
comprised of up to 11 ‘cycles’ which can be correlated across the onshore part of the basin. The existing Kola and
Dougou Extension Deposits are large, occupying areas several km across and in length. At Kola the Salt is covered by
180 to 280 m of sediments referred to as the ‘Cover Rocks’. At Dougou Extension the Cover Rocks are between and
290 and 420 m thick. The Salt is overlain by a 5-20 m thick aquitard, referred to as the Anhydrite Member. The base
of this unit (the top of the Salt) is an unconformity, so that the upper parts of the Salt are variably preserved or
truncated by this contact.
At Kola and Dougou Extension, the sylvinite formed by the replacement of pre-existing carnallitite of 1 or 2 of the four
seams in the upper Salt cycles. Carnallitite is a relatively low-grade potash rock comprised primarily of the mineral
carnallite (KMgCl3·6H2O) and halite (NaCl). The seams are as follows; the Top Seam (TS), the Hangingwall Seam (HWS),
the Upper Seam (US) and Lower Seam (LS) separated by rock-salt (Figure 2). At Kola the TS is mostly absent due to it
being truncated by the unconformity at the top of the Salt so does not form part of the Mineral Resource or
Exploration Target. At Dougou Extension the TS is 12-15 m above the HWS and is widely preserved, hosting the bulk
of the sylvinite Mineral Resource. At both Deposits internal zones of carnallitite occur, and this is not mixed with the
sylvinite, always being lateral or below the sylvinite with abrupt contacts between the two.
The extent of the Kola South and DX North Exploration Targets is controlled by the extent of broad structural ‘highs’
(100’s m) beneath or adjacent to them (Figure 1). In these areas the process of sylvinite replacement was ‘promoted’
in the upper 10-90 m of the Salt. These structural features pre-date the Salt and had an influence on the formation of
sylvinite.
Fundamental to the Exploration Targets is the well-established continuity of the evaporite layers, including the potash
seams. Each seam, regardless of whether it is sylvinite or carnallitite can be correlated over tens of kilometres relating
to the continuity of the original depositional setting of the evaporite. Lateral grade variation of the sylvinite of each
seam and the content of insoluble material is low for the same reason. The HWS is the highest grading seam, where
sylvinite grades up to 62% KCl at the Kola and Dougou Extension Deposits. The US, then the TS and LS, have grades
between 24 and 42% KCl.
The Kola South Exploration Target
The intersections of sylvinite in two of the Company’s drill-holes completed in 2017 provide support for the Kola South
Exploration Target and were reported previously along with Table 1 of the JORC Code (Company announcement dated
7 December 2017). These holes, EK_53 and EK_54, intersected sylvinite in the HWS grading 61.9 and 60.0 % KCl over
a thickness of 2.22 and 3.26 m respectively.
Based on EK_53, EK_54 and available historic seismic data, the sylvinite at the Kola deposit is likely to extend up to 7
km southeast of the current Inferred Resource extent (Figure. 1) and the sylvinite mineralised zones are likely to be
contiguous with that of the current Mineral Resource. The extent of the prospective area is controlled by a subtle
structural ‘high’ below the Salt Member, extending southwards on strike from the Kola deposit. This ‘high’ is evident
on the plot of the thickness of the Salt Member (Figure 1). Seismic survey data also guides the overall geometry of the
Salt and suggests that there are no features disrupting the Salt stratigraphy within the target area.
In determining the Exploration Target, the average expected thickness of the HWS was determined from the EK_53
and EK_54 intersections, both of which are sylvinite. In these holes the US and LS is carnallitite, but it is expected these
seams will be sylvinite over significant portions of the target area, as is the case at the Kola Deposit. The thickness of
the US and LS for the Exploration Target was determined from the data for these seams at the Kola Deposit, with a
slight reduction to the LS thickness (to account for a slightly thinned LS carnallite seam in EK_54). The grade range of
the seams was determined from the large amount of data for the seams at Kola, along with the intersections in EK_53
and EK_54 for the sylvinite HWS. For each seam, the minimum grade was guided by the 10th percentile of the grade
data for all existing intersections and the maximum was assigned to less than the 80th percentile, considered
appropriate as low or high-grade outliers do not exist.
Based on the understanding on the distribution of sylvinite at the Kola Deposit, a minimum and maximum ‘abundance’
of each of the seams was developed for Kola South, expressed as a percentage of the prospective area (Table 1). It is
expected that sylvinite of the US will contribute most to the potential tonnage, followed by the LS and HWS in roughly
equal proportions. The predicted abundance of the HWS is greater than at the Kola Deposit, reflecting the expectation
that it is less widely truncated (by the unconformity at the top of the Salt) at Kola South.
The DX North Exploration Target
This is the potential northward extension of the recently announced Dougou Extension Deposit (Company
announcement dated 20 August 2018). The prospective area is defined by slight elevation and thinning of the Salt
where the rocks (100’s m) below the Salt are affected by horst development within an area referred to as the Yangala
High (Figure 1), and northwards of this feature adjacent to the basin margin. The delineation of the prospective zone
was based on a large amount of historical 2D seismic survey data and several historical drill-holes (Figure 1). Appendix
1 contains the JORC 2012 Table 1 for exploration data relating to the DX North Exploration Target, having not been
part of previous announcements. Table 3 provides summarises of potash intersections in the historic drill-holes. The
Company’s 2017 drill-hole DX_05 planned to test the DX North area east of historic hole Yangala-1 but stopped short
of the Salt Member due to drilling difficulties.
The estimation of the Exploration Target range of tonnes for DX North is based on the assumption that a portion of
the total area of each seam will host sylvinite, in the proportions provided in Table 1. There is less supporting data in
relation to the size of the target area than for Kola South; this lower level of confidence is reflected in the maximum
assigned proportions. It is expected that in some areas the seams are either truncated by the unconformity at the top
of the Salt or are present but are carnallitite but that the material quantified by the Exploration Target would be within
areas that are sufficiently extensive and continuous to be potentially amenable to economic extraction.
Historic drill-hole Yangala-1 contains sylvinite in the TS, US and LS but are partially leached so that grade is likely to be
less than what is typical for these seams. This is encouraging as it shows that the process of sylvinite formation has
taken place well into the Salt. The Historic hole Maf-1 (Figure 1) intersected a 4.1 m thick sylvinite seam, interpreted
to be the US or LS. Hole TK-1 contains carnallitite in the TS, HWS, US and LS.
The average thickness of the seams in the DX North area were determined from the sylvinite intersections of the TS
and HWS in the Company’s drill-holes at the Dougou Extension Deposit. The thickness of the sylvinite US and LS was
estimated based on the thickness of the carnallitite intersections in the area, as this is proportional to the thickness
when replaced by sylvinite. The grade range for the HWS and TS is based on the intersections at the Dougou Extension
Deposit. The grade range for the US and LS is based on the grade of these seams at Kola. API values of >300 API in hole
Maf-1 provide support for the presence of high-grade sylvinite. As at Kola South, the 10th and 80th percentiles of grade
data in the supporting intersections was used to guide the minimum and maximum stated grade of the Exploration
Target.
Figure 1. Map showing the Kola and Dougou Deposits and the adjacent South and DX North Exploration Target
areas, along with important controlling features
A copy of this announcement including the diagrams and schematics are available on the Company’s website hosted
at http://www.korepotash.com/wp-content/uploads/2018/11/Significant-Extensions-to-Kore’s-Existing-Sylvinite-
Deposits-Expected.pdf.
Further Exploration Work
No immediate follow up exploration activity is currently planned while the Company is focused on the review of the
Kola Definitive Feasibility Study. The following provides an indication of what work that would typically be required to
advance the Exploration Targets.
- Acquire additional 2D seismic survey data on wide-spaced lines (1-3 km apart) to improve the geological model
and understanding of the Salt Member.
- Drill 3-5 holes in each target area. At Kola South, holes would be expected to have final depths of between
300 and 400 m; at DX North holes up to a depth of 700 m may be required.
- If this drilling is sufficiently successful, the data may support expansions of the existing Kola and Dougou
Extension Mineral Resource Estimates.
- Further ‘infill’ drilling and seismic surveying may then be required to increase confidence.
- This programme if commenced may take approximately 12-24 months to complete from initiation.
Figure 2. Schematic section illustrating geology at the Kola Deposit. Note the TS is absent.
A copy of this announcement including the diagrams and schematics are available on the Company’s website hosted
at http://www.korepotash.com/wp-content/uploads/2018/11/Significant-Extensions-to-Kore’s-Existing-Sylvinite-
Deposits-Expected.pdf.
Table 2. Positions of the historic holes within the DX North area using UTM 32 S WGS 84 datum.
Easting Northing Elevation Depth
m m m m
K60 779095.96 9537928.9 16.54 565.0
MAF-1 761183.96 9560162.5 38.09 1018.6
TK-1 771596.00 9550234.0 42.60 1537.0
Yangala-1 783662.00 9533277.0 102.57 1110.6
Holes were drilled vertically
Table 3. Potash intersections in historic holes within the DX North area
Seam/s Depth (m)
K60 None -
MAF-1 Sylvinite US or LS of 4.1 m thick and <300 API 293.7 to 297.8
TK-1 Carnallitite TS, HWS, US, LS within an interval from 507 and 625.5
Yangala-1 Partially leached sylvinite of the TS, US, LS. within an interval from 524 to 680
Figure 3. Location of Kore’s projects
A copy of this announcement including the diagrams and schematics are available on the Company’s website hosted
at http://www.korepotash.com/wp-content/uploads/2018/11/Significant-Extensions-to-Kore’s-Existing-Sylvinite-
Deposits-Expected.pdf.
21 November 2018
JSE Sponsor: Rencap Securities (Pty) Limited
– ENDS –
Contacts:
Brad Sampson Jos Simson / Edward Lee Martin Davison/ James Asensio
Canaccord Genuity – Nomad &
Chief Executive Officer Tavistock (UK media enquiries) Broker
Tel: +27 11 469 9144 Tel: +44 (0) 207 920 3150 Tel: +44 (0) 20 7523 4600
info@korepotash.com kore@tavistock.co.uk korepotash@canaccordgenuity.com
www.korepotash.com
About Kore Potash’s Projects
Kore Potash is an advanced stage mineral exploration and development company whose primary asset is 97%-owned
interest in the Sintoukola project, a potash project located in the Republic of Congo. The Sintoukola project comprises the
Kola sylvinite and carnallite Deposits, the Dougou Extension sylvinite Deposit and the Dougou carnallite Deposit. These
deposits are within the Kola and Dougou Mining Licenses. The Sintoukola project also includes the Sintoukola 2 Exploration
License.
Sintoukola is located approximately 80 km to the north of the city of Pointe Noire which has a major port facility, and
within 30 km of the Atlantic coast. Sintoukola has the potential to be among the world’s lowest-cost potash producers
and its location near the coast offers a transport cost advantage to global fertilizer markets.
The Kola sylvinite Deposit has a Measured and Indicated sylvinite Mineral Resource Estimate of 508 million tonnes grading
35.4 % KCl. A Definitive Feasibility Study (“DFS”) is being conducted by a consortium of French engineering and
construction companies. The deposit is ‘open’ laterally; drill-holes completed in 2017 intersected high-grade sylvinite
several km southeast of the Deposit. It is shallow relative to most potash mines; the proposed shaft bottom will be 270 m
below surface.
The Dougou Extension sylvinite Deposit contains a total sylvinite Mineral Resource estimate of 232 Mt grading 38.1% KCl,
hosted by two seams. The Mineral Resource includes 67 Mt grading 60.1 % KCl. Dougou Extension is located 15 km
southwest of Kola. A large zone that is considered prospective for sylvinite extends a further 25 km northwards, within
the Dougou Mining License and the ‘Sintoukola 2’ Exploration License.
The Kola and Dougou Extension sylvinite Deposits are considered high grade relative to most potash deposits globally and
have the advantage of having very low content of insoluble material, less than 0.3% which provides a further processing
advantage.
The Dougou carnallite Deposit has a Measured and Indicated Potash Mineral Resource of 1.1 billion tonnes grading 20.6%
KCl (at a depth of between 400 and 600 metres) hosted by 35-40 metres of carnallitite within 4 flat-lying seams. A Scoping
Study was completed in February 2015. This Study indicated that a Life of Mine operating cost of US$68 per tonne MoP
was achievable.
- Muriate of Potash (MoP) is the saleable form of potassium chloride (KCl), comprising of a minimum 95% KCl.
- Sylvinite is a rock type comprised predominantly of the potash mineral sylvite (KCl) and halite (NaCl).
- Carnallitite is a rock type comprised predominantly of the potash mineral carnallite (KMgCl3·6H2O) and halite
(NaCl).
Kore’s Potash Mineral Resources, provided as Gross and Net Attributable (to Kore’s 97% holding), prepared and reported
according to the JORC Code, 2012 edition.
SYLVINITE DEPOSITS
KOLA SYLVINITE DEPOSIT
Gross Net Attributable
Contained KCl million Million Grade KCl Contained KCl million
Mineral Resource Category Million Tonnes Grade KCl %
tonnes Tonnes % tonnes
Measured 216 34.9 75 209 34.9 73
Indicated 292 35.7 104 283 35.7 101
Sub-Total Measured + Indicated 508 35.4 180 492 35.4 174
Inferred 340 34.0 116 330 34.0 112
TOTAL 848 34.8 295 822 34.8 286
DOUGOU EXTENSION SYLVINITE DEPOSIT
Gross Net Attributable
Contained KCl million Million Grade KCl Contained KCl million
Mineral Resource Category Million Tonnes Grade KCl %
tonnes Tonnes % tonnes
Measured - - - - - -
Indicated 111 37.2 41 108 37.2 40
Sub-Total Measured + Indicated 111 37.2 41 108 37.2 40
Inferred 121 38.9 47 117 38.9 46
TOTAL 232 38.1 88 225 38.1 85
TOTAL SYLVINITE, KOLA & DOUGOU EXTENSION DEPOSITS COMBINED
Measured + Indicated + Inferred 1,080 35.5 384 1,048 35.5 372
CARNALLITE DEPOSITS
DOUGOU CARNALLITE DEPOSIT
Gross Net Attributable
Contained KCl million Million Grade KCl Contained KCl million
Mineral Resource Category Million Tonnes Grade KCl %
tonnes Tonnes % tonnes
Measured 148 20.1 30 144 20.1 29
Indicated 920 20.7 190 892 20.7 185
Sub-Total Measured + Indicated 1,068 20.6 220 1,036 20.6 214
Inferred 1,988 20.8 414 1,928 20.8 401
TOTAL 3,056 20.7 634 2,964 20.7 615
KOLA CARNALLITE DEPOSIT
Gross Net Attributable
Contained KCl million Million Grade KCl Contained KCl million
Mineral Resource Category Million Tonnes Grade KCl %
tonnes Tonnes % tonnes
Measured 341 17.4 59 331 17.4 58
Indicated 441 18.7 83 428 18.7 80
Sub-Total Measured + Indicated 783 18.1 142 760 18.1 138
Inferred 1,266 18.7 236 1,228 18.7 229
TOTAL 2,049 18.5 378 1,988 18.5 367
Note: Table entries are rounded to the appropriate significant figure.
Competent Persons Statement
All information in this report that relates to the Exploration Targets for Kola South and DX North is based on information
compiled by Mr. Andrew Pedley, the Chief Geologist for Kore Potash and a full-time employee of the Company. Mr Pedley
is a registered scientist (Pr. Sci. Nat) with the South African Council for Natural Scientific Professions (reg No. 400311/13)
and is a member of the Geological Society of South Africa. Mr. Pedley has sufficient experience that is relevant to the style
of mineralisation and type of Deposit under consideration and to the activity he is undertaking 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” (the JORC Code). Mr. Pedley consents to the inclusion in this report of the matters based on his
information in the form and context in which it appears.
The information relating to previous Exploration Results, Mineral Resources or Ore Reserves in this report is based on, or
extracted from previous reports referred to herein, and available to view on the Company’s website www.korepotash.com
The Kola Mineral Resource Estimate was reported 6 July 2017 in an announcement titled ‘Updated Mineral Resource for
the High Grade Kola Deposit’. It was prepared by Competent Person Mr. Garth Kirkham, P.Geo., of Met-Chem division of
DRA Americas Inc., a subsidiary of the DRA Group, and a member of the Association of Professional Engineers and
Geoscientists of British Columbia. The Dougou carnallite Mineral Resource estimate was reported on 9 February 2015 in
an announcement titled ‘Elemental Minerals Announces Large Mineral Resource Expansion and Upgrade for the Dougou
Potash Deposit’. It was prepared by Competent Persons Dr. Sebastiaan van der Klauw and Ms. Jana Neubert, senior
geologists and employees of ERCOSPLAN Ingenieurgesellschaft Geotechnik und Bergbau mbH and members of good
standing of the European Federation of Geologists. The Dougou Extension sylvinite Mineral Resource Estimate was
reported 20 August 2018 in an announcement titled ‘Maiden Sylvinite Mineral Resource at Dougou Extension’. It was
prepared by Competent Person Mr. Andrew Pedley a full-time employee of Kore Potash, a registered professional natural
scientist with the South African Council for Natural Scientific Professions and member of the Geological Society of South
Africa. The Company confirms that it is not aware of any new information or data that materially affects the information
included in the original market announcements and, in the case of estimates of Mineral Resources or Ore Reserves that
all material assumptions and technical parameters underpinning the estimates in the relevant market announcement
continue to apply and have not materially changed. The Company confirms that the form and context in which the
Competent Person’s findings are presented have not been materially modified from the original market announcement.
Forward-Looking Statements
This report contains statements that are "forward-looking". Generally, the words "expect," “potential”, "intend,"
"estimate," "will" and similar expressions identify forward-looking statements. By their very nature and whilst there is a
reasonable basis for making such statements regarding the proposed placement described herein; forward-looking
statements are subject to known and unknown risks and uncertainties that may cause our actual results, performance or
achievements, to differ materially from those expressed or implied in any of our forward-looking statements, which are
not guarantees of future performance. Statements in this report regarding the Company's business or proposed business,
which are not historical facts, are "forward looking" statements that involve risks and uncertainties, such as resource
estimates and statements that describe the Company's future plans, objectives or goals, including words to the effect that
the Company or management expects a stated condition or result to occur. Since forward-looking statements address
future events and conditions, by their very nature, they involve inherent risks and uncertainties. Actual results in each
case could differ materially from those currently anticipated in such statements.
Investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date they
are made.
APPENDIX 1. JORC 2012 Table 1
Prepared to describe the supporting Exploration Data for the DX North Exploration Target; additional support is provided by data described in
the previously reported Mineral Resource estimate for the adjacent Dougou Extension Deposit (announcement dated 20 August 2018).
Exploration Data supporting the Kola South Exploration Target is not included in this Appendix as that data was announced previously
(announcement dated 7 December 2017).
Important Abbreviations used:
- DX: Dougou Extension
- MRE: Mineral Resource Estimate
- TS: Top Seam
- HWS: Hangingwall Seam
- US: Upper Seam
- LS Lower Seam
- RoC Republic of Congo
Section 1 - Sampling Techniques and Data
JORC Criteria JORC Explanation Commentary
1.1 SAMPLING - Nature and quality of sampling (eg cut channels, random
TECHNIQUES chips, or specific specialised industry standard measurement - In addition to the data for the adjacent Dougou Extension
tools appropriate to the minerals under investigation, such as Deposit, four drill-holes guide the DX North Exploration Target;
down hole gamma sondes, or handheld XRF instruments, etc). K60, Yangala-1, MAF-1 and TK-1.
These examples should not be taken as limiting the broad - Mineralised intervals are present but were not sampled in
meaning of sampling. these holes.
- Include reference to measures taken to ensure sample - Grade of the potash seams is based upon the intersections of
representivity and the appropriate calibration of any the seams at the adjacent Dougou Extension Deposit, and at
measurement tools or systems used. the nearby Kola Deposit.
- Aspects of the determination of mineralisation that are
Material to the Public Report. In cases where ‘industry
standard’ work has been done this would be relatively simple
(eg ‘reverse circulation drilling was used to obtain 1 m samples
from which 3 kg was pulverised to produce a 30 g charge for
fire assay’). In other cases more explanation may be required,
such as where there is coarse gold that has inherent sampling
problems. Unusual commodities or mineralisation types (eg
submarine nodules) may warrant disclosure of detailed
information.
1.2. DRILLING - Drill type (eg core, reverse circulation, open-hole hammer, - K60 and Yangala-1 were drilled by rotary percussion through
TECHNIQUES rotary air blast, auger, Bangka, sonic, etc) and details (eg core the 'cover rocks', stopping in the Anhydrite Member then
diameter, triple or standard tube, depth of diamond tails, face- advanced through the Salt Member using diamond coring with
sampling bit or other type, whether core is oriented and if so, the use of tri-salt (K, Na, Mg).
by what method, etc). - Holes MAF-1 and TK-1 were drilled with rotary methods
through the cover rocks and Salt Member.
- All holes were drilled vertically.
1.3. DRILL SAMPLE - Method of recording and assessing core and chip sample - There are no records of core recovery for hole K60 or Yangala-
RECOVERY recoveries and results assessed. 1 but based on descriptions of the core, recovery was likely to
- Measures taken to maximise sample recovery and ensure have been acceptable.
representative nature of the samples. - There is no record of the recovery of cuttings in holes MAF-1
- Whether a relationship exists between sample recovery and and TK-1.
grade and whether sample bias may have occurred due to
preferential loss/gain of fine/coarse material.
1.4. LOGGING - Whether core and chip samples have been geologically and - Geological logging in K60 and Yangala-1 was based on core and
geotechnically logged to a level of detail to support is of an acceptable standard, including descriptions and
appropriate Mineral Resource estimation, mining studies and graphical logs.
metallurgical studies. - For MAF-1 and TK-1, only summary descriptions of the potash
- Whether logging is qualitative or quantitative in nature. Core intervals are available.
(or costean, channel, etc.) photography. - No mineralised intervals were sampled in these holes.
- The total length and percentage of the relevant intersections - Data is sufficiently reliable and detailed, and is therefore
logged. considered acceptable for the reporting of an Exploration
Target.
1.5 SUB-SAMPLING - If core, whether cut or sawn and whether quarter, half or all - No samples were collected from the drill-holes within the DX
TECHNIQUES AND SAMPLE core taken. North Exploration Target area.
PREPARATION - If non-core, whether riffled, tube sampled, rotary split, etc and
whether sampled wet or dry.
- For all sample types, the nature, quality and appropriateness
of the sample preparation technique.
- Quality control procedures adopted for all sub-sampling stages
to maximise representivity of samples.
- Measures taken to ensure that the sampling is representative
of the in situ material collected, including for instance results
for field duplicate/second-half sampling.
- Whether sample sizes are appropriate to the grain size of the
material being sampled.
1.6 QUALITY OF ASSAY - The nature, quality and appropriateness of the assaying and - No analyses are available for the holes within the DX North
DATA AND LABORATORY laboratory procedures used and whether the technique is Exploration Target area.
TESTS considered partial or total. - Grade rangesare based on data at the adjacent Dougou
- For geophysical tools, spectrometers, handheld XRF Extension Deposit, and at the nearby Kola Deposit, which have
instruments, etc, the parameters used in determining the been reported previously.
analysis including instrument make and model, reading times, - Downhole API data in a historic drilling report for MAF-
calibrations factors applied and their derivation, etc. provides support of the sylvinite depth and thickness in that
- Nature of quality control procedures adopted (eg standards, hole. The API value was >300 API for what is interpreted to be
blanks, duplicates, external laboratory checks) and whether either the US or LS. Carnallitite was 100-165 API and halite
acceptable levels of accuracy (i.e. lack of bias) and precision reported as 15-20 API for comparison.
have been established.
1.7. VERIFICATION OF - The verification of significant intersections by either - No verification was carried out as all holes within the DX North
SAMPLING AND ASSAYING independent or alternative company personnel. area are historical and core is no longer available. Furthermore
- The use of twinned holes. grade data for the historic holes was not used; grade for the
- Documentation of primary data, data entry procedures, data seams was determined from the Company’s holes within the
verification, data storage (physical and electronic) protocols. Dougou Extension Deposit to the south, and from the Kola
- Discuss any adjustment to assay data. Deposit, for which full sample and assay QA-QC programmes
were implemented.
1.8. LOCATION OF DATA - Accuracy and quality of surveys used to locate drill holes (collar - Drill-hole collars’ Easting, Northing and elevation were
POINTS and down-hole surveys), trenches, mine workings and other surveyed and recorded in the drilling reports for the holes.
locations used in Mineral Resource estimation. Hole positions are provided in Table 2 of the announcement.
- Specification of the grid system used. They are converted from Pointe Noire datum to WGS 84
- Quality and adequacy of topographic control. datum. The position of Yangala-1 was verified in the field.
1.9. DATA SPACING AND - Data spacing for reporting of Exploration Results. - Figure 1 of the announcement shows the location of the drill-
DISTRIBUTION - Whether the data spacing and distribution is sufficient to holes. They are between 6 and 14 km apart.
establish the degree of geological and grade continuity
appropriate for the Mineral Resource and Ore Reserve
estimation procedure(s) and classifications applied.
- Whether sample compositing has been applied.
1.10. ORIENTATION OF - Whether the orientation of sampling achieves unbiased - Not applicable as no grade data is reported for the historical
DATA IN RELATION TO sampling of possible structures and the extent to which this is holes.
GEOLOGICAL STRUCTURE known, considering the deposit type.
- If the relationship between the drilling orientation and the
orientation of key mineralised structures is considered to have
introduced a sampling bias, this should be assessed and
reported if material.
1.11. SAMPLE SECURITY - The measures taken to ensure sample security. Not applicable as no samples were taken from historical drill-
holes
1.12. AUDITS OR REVIEWS - The results of any audits or reviews of sampling techniques - The MSA Group (MSA), an independent exploration and mining
and data. consultancy based in Johannesburg, has reviewed the data
relating to the Dougou Extension and Kola Mineral Resources.
MSA assisted Kore in the modelling, estimation and reporting
of these Mineral Resources.
Section 2 - Reporting of Exploration Results
JORC Criteria JORC Explanation Commentary
2.1 MINERAL TENEMENT - Type, reference name/number, location and ownership - The DX North Exploration Target is within the Dougou Mining
AND LAND TENURE including agreements or material issues with third parties such License and the Sintoukola 2 Exploration License. The former
STATUS as joint ventures, partnerships, overriding royalties, native title was issued on the 9 May 2017 and held 100% by the local
interests, historical sites, wilderness or national park and company Dougou Mining SARL which is in turn held 100% by
environmental settings. RoC Company Sintoukola Potash SA., which Kore Potash holds
- The security of the tenure held at the time of reporting along a 97% share. The Sintoukola 2 Exploration License was issued
with any known impediments to obtaining a license to operate on the 9 February 2018 and held 100% by RoC Company,
in the area. Sintoukola Potash SA and is valid for three years, following
which it may be renewed twice, each time for a further period
of two years.
- The Kola South Exploration Target is within the Kola Mining
License and the aforementioned Dougou Mining Lease. The
Kola Mining License was issued in August 2013 and is valid for
25 years and held 100% by the local company Kola Mining
SARL which is in turn held 100% by RoC Company Sintoukola
Potash SA.
- There are no impediments on the security of tenure.
2.2 EXPLORATION DONE - Acknowledgment and appraisal of exploration by other - Potash exploration was carried out in the region in the1960's
BY OTHER PARTIES parties. by Mines de Potasse d’ Alsace S.A, including the drilling of K60.
- Oil exploration wells Yangala-1 and TK-1 were drilled in 1961
and 1962 by Societe des Petrole d’Afrique Equatoriale (SPAFE).
- Oil exploration well MAF-1 was drilled in 1991 by Chevron
International.
- 2D Seismic data in the area was acquired by various oil
explorers from the 1980s onwards.
2.3. GEOLOGY - The potash seams are hosted by the Loeme Evaporite
formation, comprised of sedimentary evaporite rocks with
minor clastic layers. This formation is typically 400-500 m thick
These rocks are within the Congo Basin which extends from
the Cabinda enclave of Angola to southern Gabon, from
approximately 50 km inland, extending some 200-300 km
offshore. The evaporites were deposited during the Aptian
epoch of the Lower Cretaceous, probably between 125 and
112 million years ago, within a sub-sea level basin following
the break-up of Gondwana into the African and South
American continents. Importantly, the sedimentation was in a
post-rift setting leading to the development of evaporite
layers with significant continuity.
- In terms of classification nomenclature, the evaporite is of the
basin-wide ‘mega-halite’ type, formed by the cyclic
evaporation of sea-water sourced, seepage-fed brines in an
extensive subsiding basin, each cycle generally following the
expected brine evolution and resultant mineral precipitation
model: dolomite then gypsum then halite then the bitterns of
Mg and K as chlorides. To precipitate the thick potash beds
the system experienced prolonged periods within a relatively
narrow range of high salinity.
- Reflecting the chloride-Mg-K dominated brine composition,
halite (NaCl), carnallite (KMgCl3·6H2O) and bischofite
(MgCl2·6H2O) account for over 90% of the evaporite rocks.
Sylvinite is found relatively close to the top of the Salt.
Carnallitite is a rock comprised predominantly of carnallite and
halite. Sylvinite is a rock comprised predominantly of sylvite
(KCl) and halite. The term ‘rock-salt’ is used to refer to a rock
comprising of halite without appreciable other
minerals/materials.
- Importantly, bischofite does not occur in the floor or roof of
the TS, HWS, US or LS, only present >40 m below the LS. This
mineral is mechanically very weak and considered
disadvantageous if in proximity to mine workings.
- The Salt was deposited in a cyclic manner; 10-11 cycles have
been recognised, of which most are preserved at Dougou
Extension, the important ‘Top Seam’ (TS) and ‘Hangingwall
Seam’ (HWS) potash seams are within the mid to upper part of
cycle 9.
- All layers in the Salt member have good continuity and the
thickness of the interval between them is consistent. Even
narrow mm-scale layers or sub-layers can be correlated over
many km. In most holes all potash layers are present and have
a low angle of dip (<15 degrees).
- The HWS is relatively high grade, being comprised of a single
massive bed of approximately 60% sylvite. The TS, US and LS
are comprised of high grade sylvinite layers with internal rock-
salt layers and therefore have lower overall grades than the
HWS.
- At Dougou Extension and the DX North area, the evaporite
stratigraphy is slightly elevated and thinned relating to the
presence of a horst block forming a paleo-topographic high in
the underlying pre and syn-rift rocks referred to as the
‘Yangala High’.
- Capping the salt dominated part (Salt Member or ‘Salt’) is a
low permeability layer of anhydrite, gypsum and clay (the
Anhydrite Member). Importantly, the contact between the
Anhydrite Member and the underlying salt is an unconformity.
As the layers of the Salt are gently undulating and the upper
contact is an unconformity, in some areas there is a greater
thickness of Salt above the seams than in others, or the seams
may be ‘truncated’.
- The Anhydrite Member is covered by a thick ‘cover sequence’
of carbonate rocks and clastic sediments of Cretaceous age
(Albian) to recent.
- Potash seams were originally deposited as carnallitite but
were replaced in some areas by sylvinite, by a process of
leaching Mg, OH and some NaCl from carnallite, converting it
to sylvite. This process has taken place preferentially over the
Yangala High, initiating at the top of the Salt Member. This
process is based on observations at the Kola and Dougou
Extension Deposits and is expected within the DX North target
area.
- The thickness of the Salt above the seams is an important
control on the whether the seam is sylvinite or carnallitite, and
thus the extent of the sylvinite mineralisation. Added to this is
the variation in the depth, from the top of the Salt that the
process has been effective, between 20 and 90 m at the
Dougou Extension Deposit. At the DX North area it is likely to
be variable; the lowermost sylvinite in Yangala-1 is
approximately 155 m below the top of the Salt which is
encouraging.
- It is observed at the Kola and Dougou Extension Deposits, that
the process advanced on a downward moving ‘front’ and was
efficient; when converted no residual carnallite remains within
the sylvinite. Un-replaced carnallitite may occur below the
sylvinite (not above it) but the contact is always abrupt. As a
general rule, the conversion leads to a halving of thickness and
a doubling of grade though this is also influence by the
proportion of halite to carnallite in the original seam.
- Very close to the top of the Salt or locally in areas of greater
structural disturbance, the sylvite may be partially or entirely
leached, leaving reddish coloured halite with no or residual
KCl, referred to as ‘ghost seams’ but still identifiable; it is
possible that drill-hole Yangala-1 is in this type of setting.
2.4. DRILL HOLE - A summary of all information material to the understanding of - The borehole collar positions of the holes are provided in
INFORMATION the exploration results including a tabulation of the following Table 2 of the announcement, along with the final depth.
information for all Material drill holes: Holes were drilled vertically and no significant deviation was
- easting and northing of the drill hole collar reported in drill-hole downhole surveys.
- elevation or RL (Reduced Level – elevation above sea - Positions of the holes in relation to other holes are shown in
level in metres) of the drill hole collar Figure 1 of the announcement. All drill-holes are shown on the
- dip and azimuth of the hole map.
- down hole length and interception depth
- hole length.
- If the exclusion of this information is justified on the basis that
the information is not Material and this exclusion does not
detract from the understanding of the report, the Competent
Person should clearly explain why this is the case.
2.5 DATA AGGREGATION - In reporting Exploration Results, weighting averaging - No grade data from the historic holes is reported. Grades for
METHODS techniques, maximum and/or minimum grade truncations (e.g. the seams were determined from data from the Kola and
cutting of high grades) and cut-off grades are usually Material Dougou Extension Deposits, data which has been reported
and should be stated. previously.
- Where aggregate intercepts incorporate short lengths of high
grade results and longer lengths of low grade results, the
procedure used for such aggregation should be stated and
some typical examples of such aggregations should be shown
in detail.
- The assumptions used for any reporting of metal equivalent
values should be clearly stated.
2.6 RELATIONSHIP - These relationships are particularly important in the reporting - No information regarding the orientation of the potash layers
BETWEEN of Exploration Results. in the historic holes is provided. As grade data for these holes
MINERALISATION WIDTHS - If the geometry of the mineralisation with respect to the drill is not reported, the relationship between mineralisation
AND INTERCEPT LENGTHS hole angle is known, its nature should be reported. widths and intercept length are not considered.
- If it is not known and only the down hole lengths are reported,
there should be a clear statement to this effect (eg ‘down hole
length, true width not known’).
2.7 DIAGRAMS - Appropriate maps and sections (with scales) and tabulations of - Relevant diagrams are provided in the announcement. The
intercepts should be included for any significant discovery previous announcement (20 August 2018) for the Dougou
being reported These should include, but not be limited to a Extension Mineral Resource Estimate contain other useful
plan view of drill hole collar locations and appropriate diagrams.
sectional views.
2.8 BALANCED REPORTING - Where comprehensive reporting of all Exploration Results is - All relevant exploration data is reported. Potash intersections
not practicable, representative reporting of both low and high including sylvinite, carnallitite and leached seams within the
grades and/or widths should be practiced to avoid misleading deposit area are provided in Table 3 of the announcement.
reporting of Exploration Results.
2.9 OTHER SUBSTANTIVE - Other exploration data, if meaningful and material, should be - Density of the seams (in Table 1 of the announcement) is
EXPLORATION DATA reported including (but not limited to): geological determined from a large dataset of density data for the Kola
observations; geophysical survey results; geochemical survey and Dougou Extension Deposits. The Company has established
results; bulk samples – size and method of treatment; a direct relationship between KCl grade and density, which is
metallurgical test results; bulk density, groundwater, robust due to the fact that the sylvinite in all intersections is
geotechnical and rock characteristics; potential deleterious or comprised of over 97.5% of only two minerals; halite and
contaminating substances. sylvite.
2.10 FURTHER WORK - The nature and scale of planned further work (eg tests for - No further exploration work is planned at present.
lateral extensions or depth extensions or large-scale step-out - The announcement provides an indicative drilling and seismic
drilling). programme that would be aimed at potentially defining
- Diagrams clearly highlighting the areas of possible extensions, Mineral Resources. It is recommended that initial phase of
including the main geological interpretations and future wide-spaced seismic and the drilling of 3-5 holes at each
drilling areas, provided this information is not commercially target is carried out.
sensitive. - If successful, a larger campaign of drilling and seismic could be
carried out to potentially support Resource estimation. It is
anticipated that a total of approximately 5 to 10 holes and 50
km of seismic data at Kola, and 15 to 30 holes and 200 km of
seismic data at DX North would be required.
- The positions of historic holes K60 and TK-1 should be located
in the field.
Glossary of Terms
Term Explanation
Albian The uppermost subdivision of the Early/Lower Cretaceous epoch/series. Its approximate time range is
113.0 ± 1.0 Ma to 100.5 ± 0.9 Ma (million years ago)
anhydrite Anhydrous calcium sulphate, CaSO4.
a subdivision of the Early or Lower Cretaceous epoch or series and encompasses the time from 125.0 ±
Aptian
1.0 Ma to 113.0 ± 1.0 Ma
An underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials
aquifer
(gravel, sand, or silt)
aquitard A zone within the earth that restricts the flow of groundwater from one aquifer to another.
assay in this case refers to the analysis of the chemical composition of samples in the laboratory
bischofite Hydrous magnesium chloride minerals with formula, MgCl2·6H2O and CaMgCl2·12H2O
brine Brine is a high-concentration solution of salt in water
carbonate any rock composed mainly of carbonate minerals such as calcite or dolomite
carnallite an evaporite mineral, a hydrated potassium magnesium chloride with formula KMgCl. 3· 6(H2O)
carnallitite a rock comprised predomiantly of the minerals carnallite and halite
clastic Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock.
clay A fine-grained sedimentary rock.
collars (drill-hole) the top of the drill-hole
an interval of uniform length for which attributes such as grade are determined by combining or cutting
composite (sample)
original samples of greater or lesser length, to obtain a uniform support size
conformable refers to layers of rock between which there is no loss of the geological record
core (drill) the cylindrical length of rock extracted by the process of diamond drill coring
the last of the three periods of the Mesozoic Era. The Cretaceous began 145.0 million years ago and
Cretaceous
ended 66 million years ago
cross-section an image showing a slice (normally vertical) through the sub-surface
the method of extracting cores of rock by using a circular diamond-tipped bit (though may be tungsten
diamond coring
carbide)
in this case refers to the angle of inclination of a layer of rock, measured in degrees or % from
dip
horizontal
anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally CaMg(CO3)2. The
dolomite term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite.mineral
form is indicated by italic font
a spatial zone within which material is modelled/expected to be of a type or types that can be treated in
domain (mineral)
the same way, in this case in terms of resource estimation
a hole drilled to obtain samples of the mineralization and host rocks, also known as boreholes or just
drill-hole
holes
euhedral crystals with well defined crystal form
evaporite Sediments chemically precipitated due to the evaporation of an aqueous solution or brine
As per JORC 2012: An Exploration Target is a statement or estimate of the exploration potential of a
Exploration Target
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.
A planar fracture or discontinuity in a volume of rock, across which there has been significant
fault
displacement as a result of rock mass movement.
A gamma ray or gamma radiation is penetrating electromagnetic radiation arising from the radioactive
gamma-ray
decay of atomic nuclei.
Refers to the physical behavior of rocks, particularly relevant for the Mine design requiring geotechnical
geotechnical
engineering
Gondwana or Gondwanaland, was a supercontinent that formed from the unification of several cratons
Gondwana in the Late Neoproterozoic, merged with Euramerica in the Carboniferous to form Pangaea, and began to
fragment in the Mesozoic
A graben is a basin bound by normal faults either side, formed by the subsidence of the basin due to
graben
extension
gypsum soft sulfate mineral composed of calcium sulfate dehydrate, with the chemical formula CaSO. 4·2H2O.
halite The mineral form of sodium chloride (NaCl), salt.
a horst is a raised fault block bounded by normal faults. A horst is a raised block of the Earth's crust that
horst
has lifted, or has remained stationary, while the land on either side (grabens) have subsided
An ‘Indicated Mineral Resource’ is that part of a Mineral Resource for which quantity, grade (or quality),
densities, shape and physical characteristics are estimated with sufficient confidence to allow the
application of Modifying Factors in sufficient detail to support mine planning and evaluation of the
economic viability of the deposit. Geological evidence is derived from adequately detailed and reliable
Indicated Mineral Resource exploration, sampling and testing gathered through appropriate techniques from locations such as
outcrops, trenches, pits, workings and drillholes, and is sufficient to assume geological and grade (or
quality) continuity between points of observation where data and samples are gathered. An Indicated
Mineral Resource has a lower level of confidence than that applying to a Measured Mineral Resource and
may only be converted to a Probable Ore Reserve.
An ‘Inferred Mineral Resource’ is that part of a Mineral Resource for which quantity and grade (or quality)
are estimated on the basis of limited geological evidence and sampling. Geological evidence is sufficient
to imply but not verify geological and grade (or quality) continuity. It is based on exploration, sampling
and testing information gathered through appropriate techniques from locations such as outcrops,
Inferred Mineral Resource
trenches, pits, workings and drillholes. An Inferred Mineral Resource has a lower level of confidence than
that applying to an Indicated Mineral Resource and must not be converted to an Ore Reserve. It is
reasonably expected that the majority of Inferred Mineral Resources could be upgraded to Indicated
Mineral Resources with continued exploration.
insoluble material in this report, refers to material that cannot be dissolved by water such as clay, quartz, anhydrite
Inverse distance weighting (IDW) is a type of deterministic method for multivariate interpolation with a
Inverse Distance weighting known scattered set of points. The assigned values to unknown points are calculated with
a weightedaverage of the values available at the known points.
Joint Ore Reserves Committee of The Australasian Institute of Mining and Metallurgy, Australian Institute
JORC of Geoscientists and Minerals Council of Australia (JORC). JORC issues the Australasian Code for Reporting
of Exploration Results, Mineral Resources and Ore Reserves, last updated 2012 (JORC 2012).
Limestone is a sedimentary rock. Its major materials are the minerals calcite and aragonite which are
limestone different crystal forms of calcium carbonate (CaCO3), mostly derived or in the form of skeletal fragments
of marine organisms such as coral, forams and molluscs
lithological refers to the observed characteristics if a rock type (or lithology)
A ‘Measured Mineral Resource’ is that part of a Mineral Resource for which quantity, grade (or quality),
densities, shape, and physical characteristics are estimated with confidence sufficient to allow the
application of Modifying Factors to support detailed mine planning and final evaluation of the economic
viability of the deposit. Geological evidence is derived from detailed and reliable exploration, sampling
and testing gathered through appropriate techniques from locations such as outcrops, trenches, pits,
Measured Mineral Resource
workings and drillholes, and is sufficient to confirm geological and grade (or quality) continuity between
points of observation where data and samples are gathered. A Measured Mineral Resource has a higher
level of confidence than that applying to either an Indicated Mineral Resource or an Inferred Mineral
Resource. It may be converted to a Proved Ore Reserve or under certain circumstances to a Probable Ore
Reserve.
Mineral Deposit A mineral deposit is a natural concentration of minerals in the earth's crust.
the economically mineable part of a Measured and/or Indicated Mineral Resource. It includes diluting
materials and allowances for losses, which may occur when the material is mined or extracted and is
Mineral Reserve defined by studies at Pre-Feasibility or Feasibility level as appropriate that include application of
Modifying Factors. Such studies demonstrate that, at the time of reporting, extraction could reasonably
be justified
A ‘Mineral Resource’ is a concentration or occurrence of solid material of economic interest in or on the
Earth’s crust in such form, grade (or quality), and quantity that there are reasonable prospects for
eventual economic extraction. The location, quantity, grade (or quality), continuity and other geological
Mineral Resource
characteristics of a Mineral Resource are known, estimated or interpreted from specific geological
evidence and knowledge, including sampling. Mineral Resources are sub-divided, in order of increasing
geological confidence, into Inferred, Indicated and Measured categories.
a method of drilling using a rotating destructive bit to penetrate the rocks and using water with various
mud-rotary
additives referred to as the drilling fluid or 'mud'
muriate of potash (MoP) The saleable form of potassium chloride, comprising a minimum of 95% KCl
organics in this report refers to material of organic origin such as plant debris or peat, or bituminous material
overburden a general term referring to rocks above the rocks hosting the ore.
refers to any of various mined and manufactured salts that contain potassium in water-soluble form. In
potash
this report generally refers to the potassium bearing rock types
The Precambrian (or Pre-Cambrian, sometimes abbreviated p?, or Cryptozoic) is the earliest part
Pre-Cambrian
of Earth's history, set before the current Phanerozoic Eon, between 4600 to 541 Ma
pycnometer A laboratory device used for measuring the density of solids.
refers to the amount of core recovered as a % of the amount that should have been recovered if no loss
recovery (of drill core)
ws incurred.
recrystallization when minerals dissolve or partly dissolve and then re-form typically with a different size and texture
refers to the splitting apart of the earth's crust due to extension, typically resulting in crustal thinning and
rift
normal faulting
rock-salt rock comprising predominantly of the mineral halite
a method of mining whereby the ore is extracted in blocks, leaving pillars of rock behind to support the
room-and-pillar
opening
A naturally occurring material that is broken down by processes of weathering and erosion, and is
sediment subsequently transported by the action of wind, water, or ice, and/or by the force of gravity acting on the
particles.
in this case seismic reflection, a method of exploration geophysics that uses the principles of seismology
to estimate the properties of the Earth's subsurface from reflected seismic waves. The method requires
seismic
a controlled seismic source of energy, such as dynamite or Tovex blast, a specialized air gun or a seismic
vibrator
Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering
stratigraphy
(stratification). It is primarily used in the study of sedimentary and layered volcanic rocks
refers to the direction of preferred control of the mineralization be it structural or depositional. In this
strike
direction it is expected that there be greater correlation of attributes
sylvinite a rock type comprised predominantly of the mineral sylvite and halite
sylvite an evaporite mineral, potassium chloride (KCl)
An unconformity is a buried erosional or non-depositional surface separating two rock masses or strata
unconformity
of different ages, indicating that sediment deposition was not continuous
Date: 21/11/2018 09:00:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE').
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