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African Metals Corp
Symbol AFR
Shares Issued 79,308,537
Close 2010-10-15 C$ 0.255
Market Cap C$ 20,223,677
Recent Sedar Documents

African Metals' Luisha South at 75,400 t Cu inferred

2010-10-15 20:17 ET - News Release

Mr. Nigel Ferguson reports

AFRICAN METALS CORPORATION EXCEEDS INITIAL PROJECTED TARGETS WITH ITS MAIDEN RESOURCE AT THE LUISHA SOUTH PROJECT, KATANGA PROVINCE, DEMOCRATIC REPUBLIC OF CONGO.

African Metals Corp has provided initial figures for resources estimated by Geosure Exploration & Mining Solutions Pty. Ltd., independent geological consultants, for its Luisha South project in the Democratic Republic of Congo.

The resource as estimated includes an inferred 5.8 million tonnes at 1.3 per cent copper for 75,400 tonnes of contained copper metal and 0.4 per cent cobalt for 23,200 tonnes of contained cobalt metal.

Resource modelling was also completed at various cut-off grades, as presented in the attached table, and includes a higher-grade inferred resources of about 1.8 million tonnes at 2 per cent Cu and 0.4 per cent Co for 36,000 tonnes of contained copper metal and 7,200 tonnes of contained cobalt metal.

The resources stated above are more than double those which the company had targeted through its initial drilling program at the Luisha South project.

Nigel Ferguson, chief executive officer and president of African Metals, commented: "The company is very pleased with this maiden resource estimate, which is expected to continue to grow in the coming months. A diamond drill rig will be mobilizing to site soon to infill and extend zones of mineralization untested by the previous RC drilling program. Management expects further significant increases in the total contained metal content estimated for the Luisha South project. Concurrently, the company will continue surface drilling to seek extensional mineralization outside the current resource area."

Mineral resource model

Discussion

Titan Drilling Sprl completed a 2,002-metre RC drilling program at the Luisha South project in June, 2010. Nineteen angled and two vertical holes were drilled in the vicinity of the historical Luisha South pit. Drilling tested the potential for mineralization both downdip and along strike from the current excavated open pit and also tested significant high-grade copper and cobalt assay results returned from trench and adit sampling completed in March of this year and reported in Stockwatch on June 15, 2010.

Drill samples were collected from all holes at one-metre intervals and riffle split to produce approximately one-kilogram subsamples for analysis. A total of 1,462 samples, including QC samples, were dispatched to SGS Minerals in Kalulushi, Zambia, for sample processing and analysis.

An independent resource consultant, Geosure Exploration & Mining Solutions, visited the project between Aug. 15 and Aug. 17 as part of the due diligence requirements for resource estimation for the Luisha South project. All information was made available to the consultant in order for the resource to be estimated.

Further drilling at the Luisha South project

A diamond drilling program has been planned to be under way on Oct. 15, 2010. The program is a combination of new holes from surface and tails to existing RC drill holes. Geological interpretation of the June RC drill program indicated that a number of the holes either finished short of, or within, zones of mineralization, with groundwater being the common cause of early hole termination. Positive data from the diamond holes would enable an upgrade to the maiden resource assessment, which will be released to the market once all the information has been reviewed and assessed.

Mineral resource classification

The Luisha South mineral resource estimate has been prepared by Michael Montgomery, director of Geosure Exploration & Mining Solutions. 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 its prefiling guidelines for resource disclosures. An 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.

The inferred resource is detailed in the attached table.

            LUISHA SOUTH INFERRED MINERAL RESOURCE

Cut-off    Tonnes                   Contained Cu      Contained Co
(Cu %)    (000's)   Cu %  Co %  (million tonnes)  (million tonnes)

0.50*       5,800    1.3   0.4            75,400            23,200
0.75        4,900    1.4   0.4            68,600            19,600
1.50        1,800    2.0   0.4            36,000             7,200
2.00          800    2.4   0.4            19,200             3,200
3.00           70    3.7   0.6             2,590               420
 
*Base case scenario for resource estimate.

Bulk density measurements

SGS Minerals in Kalulushi, Zambia, 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 266 samples taken from RC drill chips. A bulk density of 2.09 was used to complete the resource estimate.

Mineralization modelling

Geosure of Brisbane, Australia, was contracted to undertake the resource estimations. A wireframe model of the mineralized system was based on all available information as at August, 2010.

The Luisha South deposit was modelled using Surpac 6.1.4 software. A digital terrain model was supplied to Geosure for topography. Closed wireframe solids were created to define geological domains. All modelling was completed in supplied WGS-84 co-ordinate system.

Variography was used to describe the spatial variability of both copper and cobalt. This variability was measured in the form of a mathematical model known as a variogram. These models were then used with a kriging algorithm to recreate the spatial continuity determined through variogram modelling. Drilling information was composited to two-metre intervals within geological domains to standardize sample support.

A 3-D block model was constructed using Surpac mining software. All relevant attributes were coded into the block model.

Grade estimation was performed using OK methodologies in Surpac mining software. Grade estimates were constrained to within the mineralized geological domains. Grade estimation parameters were derived from several trials and included comparing block estimates with mean composite drill grade.

Information in this report relating to exploration results has been reviewed and is based on information compiled by Mr. Ferguson, who is a member of the Australian Institute of Mining and Metallurgy. Mr. Ferguson is the chief executive officer and president of African Metals and has sufficient experience which is relevant to the style of mineralization and type of deposits under consideration and to the activity which he is undertaking to qualify as a competent person as defined in the 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, and is a qualified person as defined in NI 43-101 of the Canadian Securities Administrators. Mr. Ferguson consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Information in this report relating to mineral resources has been estimated and compiled by Mr. Montgomery of Geosure Exploration & Mining Solutions of Brisbane, Queensland, Australia. Mr. Montgomery is a member of the Australasian Institute of Mining and Metallurgy and has sufficient experience that is relevant to the style of mineralization and type of deposit under consideration and to the activity which he is undertaking to qualify as a competent person as defined in the 2004 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves, and is a qualified person as defined in NI 43-101 of the Canadian Securities Administrators. Mr. Montgomery consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

A complete technical report will be lodged with SEDAR within 45 days of this announcement.

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