Kilimapesa Gold - Resource Statement
Goldplat plc / Ticker: GDP / Index: AIM / Sector: Mining &
Exploration
5 October 2009
Goldplat plc ('Goldplat' or 'the Company')
Kilimapesa Gold - Resource Statement
Goldplat plc, an AIM listed gold producer, announces its initial
JORC-compliant resource from the Kilimapesa Hill gold mining project
('Kilimapesa') located in South Western Kenya within the historically
producing Migori Archaean Greenstone Belt. The underground gold
resource estimate at Kilimapesa totalled 1.65Mt at 2.44 g/t Au for
129,000 oz Au at a cut-off grade of 1 g/t Au for all categories.
The Measured and Indicated resource totals 409,000t at 2.39 g/t Au
for 31,416 oz Au plus an additional 1.24Mt at 2.43 g/t for 98,000 oz
Au within the Inferred category. In addition, colonial tailings in
the immediate vicinity of the plant have a combined Measured and
Indicated JORC compliant Resource of 41,000t at 2.56 g/t Au for 3,400
oz Au.
This initial Measured and Indicated resource is expected to provide
Goldplat with sufficient ore to run its Kilimapesa operations
in-excess of eight years taking into account its current plant
capacity. The Company has produced gold from development ore and
tailings since January 2009, and it intends to use future revenue
from gold sales (due to commence Q4 2009) to develop the mine and to
expand the plants production capacity.
Goldplat's CEO Demetri Manolis said, "We are delighted to have
produced our initial JORC compliant resource at the Kilimapesa gold
mining project. It gives us the foundation for the development of a
profitable small scale mining operation, which in-turn, will add
value to the Company organically via exploration."
Underground Resource
The resource is situated within a one kilometre strike length over
the Kilimapesa Hill target area. The underground exposure is limited
to a maximum depth below surface of 60m. The current resource
calculation encompasses the orebody from the surface to a depth of
70m below the current workings.
Mineralisation is contained within three sub-parallel east-west
trending quartz veins that have intruded into both an Archaen Banded
Iron Formation (BIF) and basaltic country rocks. The quartz veins
vary in thickness between 10cm and 1.2m. Access to the orebodies is
via a single adit in which the Company has intersected and developed
on the three quartz reefs.
The sample database comprises 137 groove sampled channels, with each
completed channel averaging 2.2m in true stratigraphic width, divided
into 25cm contiguous samples. Sample channels are located
approximately 3m apart horizontally. The number of samples taken
over the quartz vein and the immediate surrounding country rock was
in-excess of 1,600 samples. The sampling database represents a total
combined vein strike length in excess of 400m. As a result, the
model block size chosen was 2m x 1m x 2m (x, y, z), with a total of
21,622,578 blocks used in the estimation.
Geological mapping of the quartz veins allowed for a tight control
over the orebody morphology. The orebody was interpreted and
modelled by an independent geologist using Datamine to create a
wireframe model. That model was used by an independent
geostatistician as a basis for the resource estimation. Ordinary
Kriging was the estimation technique used, given that it is the best
linear unbiased estimator, allowing the preservation of inherent
grade variability, as opposed to other estimation techniques.
Outlier analysis determined that any sample value greater than 10g/t
be trimmed to that threshold (uppercut); although this only affected
2.14% of the sample population.
Drillhole data reported in the press release dated 7 April 2009 was
used only to delineate the veins, but has been excluded from the ore
resource calculations due to the poor recovery rates.
Resources by category at a cut-off value of 1 g/t Au are shown in the
following table:
+---------------------------------------------------------------+
| | Veins and Host |
| Resource Classification |-------------------------------------|
| | Tonnes | Au Grade | Contained Au |
| | | (g/t) | Ounces |
|-------------------------+-----------+----------+--------------|
| Measured | 36,000 | 2.86 | 3,342 |
|-------------------------+-----------+----------+--------------|
| Indicated | 373,000 | 2.32 | 28,074 |
|-------------------------+-----------+----------+--------------|
| Total | 409,000 | 2.36 | 31,416 |
|---------------------------------------------------------------|
| |
|---------------------------------------------------------------|
| Inferred | 1,242,000 | 2.43 | 97,895 |
|-------------------------+-----------+----------+--------------|
| Total | 1,651,000 | 2.44 | 129,311 |
+---------------------------------------------------------------+
The determination of the resource classification is as follows:
* Measured - Resources estimated using a very restricted search
ellipsoid size of 10m in the principal direction
* Indicated - Resources estimated using a search ellipsoid of
equivalent to the second modelled variographic range of 90m in
the principal direction
* Inferred - Resources estimated using a search ellipsoid twice the
size of the second modelled variographic range, 180m in the
principal direction including any resources estimated outside the
modelled veins
Surface Tailings Resource
As announced on 26 October 2007, the tailings derived from colonial
operations in the mid-1900s. These tailings have subsequently
undergone auger drill sampling, in order for a JORC compliant mineral
resource to be calculated. The combined Measured, Indicated and
Inferred Resources totalled 51,600 tonnes at 2.52g/t Au, the majority
of which lie within 200m of the existing plant infrastructure.
Initial gravity and carbon-in-leach metallurgical test-work
demonstrate recoveries in excess of 65%, and on the ore derived from
the quartz vein orebodies in-excess of 85%.
Total resources by category are shown below:
+------------------------------------------------------------+
| | Colonial Tailings |
| Resource Classification |----------------------------------|
| | Tonnes | Au Grade | Contained Au |
| | | (g/t) | Ounces |
|-------------------------+--------+----------+--------------|
| Measured | 11,800 | 1.70 | 648 |
|-------------------------+--------+----------+--------------|
| Indicated | 29,200 | 2.91 | 2,725 |
|-------------------------+--------+----------+--------------|
| Total | 41,000 | 2.56 | 3,373 |
|------------------------------------------------------------|
| |
|------------------------------------------------------------|
| Inferred | 10,600 | 2.40 | 819 |
|-------------------------+--------+----------+--------------|
| Total | 51,600 | 2.52 | 4,192 |
+------------------------------------------------------------+
Further details
Kilimapesa Gold (Pty) Ltd ('Kilimapesa Gold') is wholly owned by
Goldplat through its subsidiary Gold Mineral Resources Limited
('GMR'). Kilimapesa Gold includes the operating Kilimapesa Hill gold
mine and adjacent exploration assets located in South Western Kenya
within the historically producing Migori Archaean Greenstone Belt.
The Migori Archaean Greenstone Belt is a northern continuation of the
Lake Victoria Goldfields, which hosts many major gold deposits
including Barrick's multi-million ounce North Mara mine. The licence
area has been the site of considerable historical gold mining and is
still the focus of localised artisanal mining.
Goldplat first became involved in the Kilimpaesa Hill gold mining
project in June 2007, with its then 50:50 JV project partner
International Gold Exploration AB ('IGE'). The mine went into small
scale gold production in January 2009, processing development ore
plus high grade tailings.
On 24 September 2009, Goldplat announced that it had completed the
purchase of the remaining 50% interest in Kilimapesa Gold for the
total consideration of US$2.7 million from IGE, via the Company's
wholly owned subsidiary Gold Mineral Resources Limited. The payment
schedule includes US$1.2 million paid on completion of the Sale
Agreement, which was on 24 September 2009, with the balance to be
settled in six monthly tranches of US$250,000.
As a result of the acquisition, Kilimapesa Gold is required to
convert its existing exploration licence to a mining licence. Until
the mining licence is officially approved, Kilimapesa Gold is not
permitted to make commercial sales of gold. The application now
resides with the Kenyan Authorities, which the Company expects to be
granted soon. Kilimapesa Gold will then be in a position to move
into commercial production and an announcement regarding our future
mining plans will be made on the issuing of the mining licence.
* * ENDS * *
For further information visit www.goldplat.com or contact:
Demetri Manolis, CEO Goldplat plc Tel: +27 (0) 11
423 1203
James Joyce WH Ireland Limited Tel: +44 (0) 20
7220 1666
David Porter WH Ireland Limited Tel: +44 (0) 20
7220 1666
Bill Sharp Alexander David Securities Tel: +44 (0)20
Limited 7448 9820
David Scott Alexander David Securities Tel: +44 (0)20
Limited 7448 9820
Felicity Edwards St Brides Media & Finance Ltd Tel: +44 (0)20
7236 1177
Isabel Crossley St Brides Media & Finance Ltd Tel: +44 (0)20
7236 1177
Notes
Summary of Important Criteria used in the Assessment and Reporting of
the Kilimapesa Underground Gold Resource
+-------------------------------------------------------------------+
| Criteria | Status |
|-------------------------------------------------------------------|
| Sampling Techniques, Assay Data, Drilling Details |
|-------------------------------------------------------------------|
| Sampling Techniques | * Sampling channels were |
| | cut using a hand-held pneumatic |
| | chipping hammer. |
| | * Individual samples were |
| | marked off using the methodology as |
| | described in "South Africa Mine |
| | Valuation edited By C.D. STORRAR, 1977" |
| | and are recorded as 'true sample |
| | widths'. |
| | |
| | * All sampling was supervised by a |
| | qualified geologist. |
|-----------------------+-------------------------------------------|
| Location of Sampling | * Sample Channels are located |
| Channels | underground by a qualified surveyor. |
| | * All sample sections are painted for |
| | further reference. |
|-----------------------+-------------------------------------------|
| Sampling Data | * All sample channels are recorded on |
| | 'Sample Sheets' which |
| | diagrammatically represent each |
| | sample section and correlation. |
| | * Each sample is recorded in a spatial |
| | data base |
|-----------------------+-------------------------------------------|
| Verification of | * Several channels have been twinned |
| Sampling Data | and the results show a close |
| | correlation. |
|-----------------------+-------------------------------------------|
| Sample Assay | * All samples have submitted to |
| | certified laboratories in Tanzania or |
| | South Africa. |
| | * QA/QC has been done for all sample |
| | batches. |
|-----------------------+-------------------------------------------|
| Drilling Methodology | * 5 wire line diamond drill holes were |
| | drilled to intersect the orebody |
| | below the current underground |
| | workings |
| | * Core size was BQ |
| | * All core was logged and sampled by a |
| | qualified geologist. |
| | * The core was split and half submitted |
| | to a certified laboratory in |
| | Tanzania. |
|-----------------------+-------------------------------------------|
| Location of Boreholes | * All borehole collars were surveyed by |
| | a qualified surveyor |
| | * Down-the-hole surveys were not |
| | carried out due to the short |
| | drillhole lengths. |
|-------------------------------------------------------------------|
| Estimating and Reporting of Mineral Resources |
|-------------------------------------------------------------------|
| Database Integrity | * Examination of the database has not |
| | revealed any issues of concern that |
| | could significantly affect the |
| | current resource estimation |
|-----------------------+-------------------------------------------|
| Estimation and | * Veins were modelled using Datamine |
| Modelling Techniques | software, whilst estimation was done |
| | using GSLIB[i] software. Estimation |
| | was completed using ordinary kriging |
| | and a minimum and maximum number of |
| | composites of 3 and 10 respectively. |
|-----------------------+-------------------------------------------|
| Cut-Off Parameters | * Outlier trimming limits were |
| | determined using "indicator |
| | correlation for lag 1" plots, |
| | cumulative correlation plots and |
| | cumulative logarithmic probability |
| | plots. |
|-----------------------+-------------------------------------------|
| Classification | * Classification of estimated resources |
| | used variographic ranges as factors. |
| | Classification scheme as per CIM[ii] |
|-----------------------+-------------------------------------------|
| Bulk Density | * The average SG of 3 was used based on |
| | measurements of samples submitted to |
| | SGS Laboratories, Johannesburg |
|-----------------------+-------------------------------------------|
| Moisture Content | * Dry tonnes have been used |
+-------------------------------------------------------------------+
This announcement has been approved for release by Mr Mark Austin. Mr
Austin is a geologist and has more than 25 years relevant experience
in the field of activity concerned. He is a fellow of the Geological
Society of South Africa ('GSSA') and is registered as a Professional
Natural Scientist in the field of Geological Science with the South
African Council for Natural Scientific Professions and has consented
to the inclusion of the material in the form and context in which it
appears.
The orebody modelling was undertaken by Mr Corne Fourie, a geologist
of 12 years direct industry experience and more than 5 years
experience on modelling using Datamine. He has consented to the use
of his modelling in this announcement. The author and practitioner of
the underground resource estimation report, who has consented to the
inclusion of the resource statement information reported in this
announcement, is Mr. Dexter Ferreira, a senior geostatistician with
over 19 years experience in project evaluation internationally,
including extensive involvement with mineral projects throughout
South America and Africa. He is a member of the South African
Council for Natural Scientific Professions, and qualifies as an
'Expert', 'Competent Person' and 'Qualified Person' as defined in
National Instrument 43-101 and the JORC Code. The results of the
surface deposits evaluation were previously reported in October 2007
and were the subject of an Independent report by Shango Solutions of
Johannesburg. The geostatistics in the report were performed by Dr
Carina Lemmer, PhD (Stanford).
Notes to Editors
Goldplat plc is an AIM-listed gold producer with operations in
Africa. Goldplat's strategy is to build itself into a highly
profitable mid-tier gold producer, through the acquisition of known
deposits with targets of between 200,000 and one million contained
ounces. To this end, it is developing the Kilimapesa Gold Lolgorien
project, located in the historically producing Migori Archaean
Greenstone Belt in western Kenya. Kilimapesa Gold commenced initial
production in January 2009 and an aggressive exploration and
development programme has been implemented to define a JORC compliant
resource at the project.
The Company has two recovery businesses based in South Africa and
Ghana, which, by safely disposing mining by-products, fulfilling an
important aspect of operating mines' environmental management
programmes. The South African plant is located near the centre of
the East Rand Goldfield and raw material feedstocks are sourced from
many of the major South African mining companies, including AngloGold
Ashanti, Goldfields, Harmony, DRD Gold and other smaller producers.
The Ghana plant, located in the free port of Tema, provides access to
raw materials from mines in Mali, Guinea, Burkina Faso, Benin, Cote
D'Ivorie, Senegal, the DRC and Mauritania, as well as Ghana.
[i] GSLIB is an acronym for geostatistical software library. This
name was originally used for a collection of geostatistical programs
developed at Stanford University over the last 15 years
[ii] Canadian Institute of Mining, Metallurgy and Petroleum.
Glossary of Terms
MEASURED RESOURCE: the portion of a mineral resource for which
tonnage, densities, shape, physical characteristics, grade and
mineral content can be estimated with a high level of confidence. It
is based on detailed and reliable exploration, sampling and testing
information gathered through workings and drill holes. The locations
are spaced closely enough to confirm geological and/or grade
continuity.
INDICATED RESOURCE: the part of a mineral resource for which tonnage,
densities, shape, physical characteristics, grade and mineral content
can be estimated with a reasonable level of confidence. It is based
on exploration, sampling and testing information gathered though
appropriate techniques from locations such as outcrops, trenches,
pits, workings and drill holes. The locations are too widely or
inappropriately spaced to confirm geological and/or grade continuity
but are spaced closely enough for continuity to be assumed.
INFERRED RESOURCE: the part of a mineral resource for which tonnage,
grade and mineral content can be estimated with a low level of
confidence. It is inferred from geological evidence and assumed but
not verified geological and/or grade continuity. It is based on
information gathered through appropriate techniques from locations
such as outcrops, trenches, pits, workings and drill holes which may
be limited or of uncertain quality and reliability.
ADIT: a near-horizontal tunnel driven into a hillside
AUGER DRILLING: a drilling method to evaluate unconsolidated
sediments
ORDINARY KRIGING: Kriging is the estimation procedure used in spatial
geostatistics using known values Ordinary Kriging is the commonest
type of Kriging.
SPECIFIC GRAVITY: defined as the ratio of density of the material to
the density of water.
CARBON-IN-LEACH: a metallurgical process by which granular carbon
absorbs gold in solution.
---END OF MESSAGE---
This announcement was originally distributed by Hugin. The issuer is
solely responsible for the content of this announcement.