Maiden Inferred Resource of 3800 Tonnes Copper and 1700 Tonnes Cobalt for Luisha South Stockpile, Luisha South Project, Katanga Provence, Democratic Republic of Congo
By African Metals Corporation, PRNEMonday, June 13, 2011
VANCOUVER, June 14, 2011 -
African Metals Corporation (”AFR”) (TSXV:AFR) is pleased to
provide initial figures for resources estimated by Geosure
Exploration & Mining Solutions Pty Ltd, independent geological
consultants, for its Luisha South Stockpile in the Democratic
Republic of the Congo.
The resource as estimated includes:
An Inferred 370,000 tonnes at 1.0% Cu for 3,800 tonnes of contained
copper metal and 0.5% Co for 1,700 tonnes of contained cobalt
metal. (Note: tonnage figures rounded to the nearest
1,000).
Resource modelling was also completed at various cut off grades
as presented in Table One below and includes a higher grade
Inferred resource of some 130,000 tonnes at 2% Cu and 0.4% Co for
2,700 tonnes of contained copper metal and 300 tonnes of contained
cobalt metal.
Grade Contained Cut Off Tonnes Copper Grade Cobalt Copper Contained (Copper %) (000's) (%) (%) (tonnes) Cobalt (tonnes) 0.25 370 1.0 0.5 3,800 1,700 0.75 240 1.4 0.5 3,400 1,100 1.50 130 2.0 0.4 2,700 500 2.00 60 2.8 0.6 1,600 300
Table 1: Resource
Modelling results based on various copper cut-off grades.
The resources stated above are acid soluble and have been
targeted by AFR to be brought into production through conventional
hydrometallurgical processes.
Licence renewal
The Company is also pleased to report the successful renewal of the
Small Scale Mining Permit for the Luisha Project until
21st March 2016. The permit renewal will enable AFR to
pursue its goal of bringing the Luisha Project into production.
Nigel Ferguson, CEO and President of African Metals Corp,
commented:
“The Company is very pleased with this maiden resource estimate,
which is expected to continue to grow in the coming months through
an updated hard rock resource estimate based on recently completed
diamond drilling program. Management expects further increases in
the total contained metal content estimated for the Luisha South
Project. Concurrently the Company will continue surface drilling to
seek extensional mineralisation outside the current resource area.”
Nigel Ferguson also commented “Recent successful treatment of the
oxide stockpile material will allow the Company to further
investigate the possibility of placing the stockpile into
production before the end of the Calendar year. It is an exciting
time in the staged development of the company and the Luisha
Project.”
MINERAL RESOURCE MODEL
Magnum Drilling Sprl completed a 383 meter reverse circulation (RC)
drilling program at the Luisha South Project in October 2010. Forty
two vertical holes (SPRC001 to SPRC042) were drilled at
approximately 40m centers on the top of the Stockpile, located
adjacent to the Luisa South open pit. Holes were terminated after
penetrating 2m into the soil beneath the Stockpile.
Drill samples were collected from all holes at one meter
intervals, and riffle split to produce approximately one kilogram
sub-samples for analysis. A total of 418 samples including QC
samples were dispatched to ALS Chemex Minerals Laboratory in
Johannesburg, South Africa for sample processing and
analysis. The samples were analyzed by multi-element ICP
analysis for Cu and Co content after a 4 acid digest (method
ME-ICP61)
An independent resource consultant, Geosure Exploration &
Mining Solutions Pty Ltd, visited the project between the 14th and
16th May as part of the due diligence requirements for resource
estimation for the Luisha South Stockpile. All data was made
available to the consultant in order for the resource to be
estimated.
Mineral Resource Classification
The Luisha South Mineral Resource Estimate has been prepared by Mr.
Michael Montgomery, Director of Geosure Exploration & Mining
Solutions Pty Ltd. Mr. Montgomery has sufficient experience
which is relevant to the style of mineralization under
consideration and to the activity which he is undertaking to
qualify as a Competent Person as defined the by NI 43-101
standards. The resource is currently being reviewed by AFR
personnel and will be submitted to the TSX Venture Exchange in
order to meet their pre-filing guidelines for resource disclosures.
A NI 43-101 compliant technical report documenting the resource
estimate will be filed on SEDAR within 45 days of the date of this
news release.
Geosure have classified the Mineral Resource into the Inferred
category.
Bulk Density Measurements
ALS Chemex Laboratory in Johannesburg, South Africa as well as
undertaking all analytical work for the RC drill samples also
provided all bulk density data based on work completed on a suite
of 332 samples taken from RC drill chips. A bulk density of 2.84
g/cm3 was utilized for the resource model, representing
a simple average of these ALS density results.
Mineralisation Modelling
Geosure Pty Ltd of Brisbane, Australia was contracted to undertake
the resource estimations. The Luisha South deposit was modelled
using Surpac 6.1.1 software. A digital terrain model was supplied
to Geosure for topography. Domains as such were not generated for
the stockpile, given the heterogeneous nature of a stockpile.
Geostatistical analysis on the sample populations showed no
apparent mixed populations and there are no outliers of
significance. A 3 dimensional block model was constructed using
Surpac Mining Software. The block model was constructed with a
parent cell size of 25mN by 25mE and 5mRL. These cells were further
sub-blocked to 6.25mN by 6.25mE and 1.25mRL. All relevant
attributes were coded into the block model. The block model was
validated in detail using Surpac. The following validation checks
were performed:
- DTM and block model volume comparisons.
- Visual validation of block model attributes in plan, section
and 3 dimensions. - Individual block audits.
No errors were detected as part of the validation process and as
a result the block model is considered robust. Grade estimation was
performed using inverse distance methodologies in Surpac mining
software. Grade estimates were constrained to within the stockpile
DTM. Grade estimation parameters were derived from several trials
and included comparing block estimates to mean composite drill
grade. The comparison of the composite mean grade and the average
block model grades showed a good reproduction. Estimation data was
recorded for each estimation pass and recorded as part of the block
model. Geological domains were considered as hard boundaries.
Geosure have classified the Mineral Resource into the Inferred
category.
Nigel Ferguson, AusIMM, President and CEO of the Company and a
qualified person under National Instrument 43-101, has verified
data disclosed in this release.
ON BEHALF OF THE BOARD OF DIRECTORS OF
AFRICAN METALS CORPORATION
“Nigel Ferguson“
Nigel Ferguson
President & CEO
NEITHER THE TSX VENTURE EXCHANGE NOR
ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE
POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR
THE ADEQUACY OR ACCURACY OF THIS NEW RELEASE.
This News Release contains
forward-looking statements. Forward-looking statements are
statements which relate to future events. These statements
are only predictions and involve known and unknown risks,
uncertainties and other factors that may cause our or our
industry’s actual results, levels of activity, performance or
achievements to be materially different from any future results,
levels of activity, performance or achievements expressed or
implied by these forward-looking statements. While these
forward-looking statements, and any assumptions upon which they are
based, are made in good faith and reflect our current judgment
regarding the direction of our industry, actual results will almost
always vary, sometimes materially, from any estimates, predictions,
projections, assumptions or other future performance suggested
herein. Except as required by applicable law, the Company does not
intend to update any of the forward-looking statements to conform
these statements to actual results.
About African Metals Corporation.
African Metals Corporation [TSXV "AFR"] is a Canadian listed
company focused on the discovery and development of Copper and
Cobalt deposits in the highly mineralized Katanga Copper Belt
of the world renowned Africa Copper Belt in the Democratic Republic
of Congo (”DRC”).
AFR purchased all the assets of Chevalier Resources Inc. in
March 2010 including a 57% interest in the Luisha South Project
contained within licence PEPM 4881, Katanga Provence, Democratic
Republic of the Congo (”DRC”) through subsidiaries incorporated in
the DRC. In July AFR negotiated a further 18% interest in the
project with the option to increase the equity interest to 90%
based on results. The project is located 75 kilometres northwest of
Lubumbashi, the capital of Katanga Province and consists of
approximately 16.2km².
The Luisha South Project includes a small historical open pit
mine and associated stockpile and is underlain by Roan Group
sediments which host major Cu-Co deposits in the DRC. The Luishia
South orebody was explored between 1923 and 1928 and an oxide
deposit with an estimated pre-production tonnage of approximately
350,000 tonnes at 8.6% Cu was delineated. The Luisha Project also
covers some three kilometres of the Roan Group strike length which
is favorable for Cu-Co mineralization. AFR is currently conducting
metallurgical tests on stockpile Reverse Circulation drill samples
to determine characteristics and gravity separation qualities, with
the aim of commencing production of an oxide concentrate by the end
of Q3 2011.
For further information:
Jag Sandhu, Corporate Development
+1 604-306-1950
For further information: Jag Sandhu, Corporate Development, +1-604-306-1950,
Email: peterrgs at telus.net
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