Mali – The work programme to be undertaken by Kodal Minerals this season is aimed at both expanding and defining the lithium pegmatite veins previously identified, and testing new anomalies, including those identified through ground geophysical survey work undertaken over the summer.
“Kodal is commencing a major work programme at the Bougouni lithium project with the aim of both expanding the known areas of mineralisation and conducting definition drilling over previously drilled area,” says Kodal Minerals CEO Bernard Aylward.
“Since acquiring the project just over a year ago, Kodal has completed regional first pass exploration and drill tested six areas with very encouraging results at all locations. This next phase of work is designed to build on the results achieved to date and involves drilling, geophysics, metallurgy and bulk sampling. Importantly a number of holes are designed to test targets generated using ground geophysics. If successful this will confirm geophysics as valuable tool in locating extensions to pegmatites under cover,” Aylward adds.
Exploration programme details
Kodal has continued to review the results of the first drilling campaign in conjunction with the ongoing surface mapping, sampling and recent ground geophysical surveys. This review has generated additional drill targets, with a focus on the Ngoualana prospect and surrounding areas.
The target areas include:
- Ngoualana infill and definition drilling: designed to confirm geological interpretation and provide confidence in continuity of high-grade mineralisation. Drilling will continue to test depth and strike extensions;
- Ngoualana extension and offset: drillholes designed to continue targeting main zone to the east and also testing structural offsets highlighted by geophysical survey;
- Ngoualana South: drill holes designed to target and area of multiple, narrow pegmatite veins that have been returning high-grade surface samples;
- Sogola-Baoule: drilling designed to follow-up high grade intersections and target strike extensions of the outcropping pegmatite veins. This area is being reviewed with the potential to host a bulk tonnage, lower grade mineralisation that will support the Ngoualana mineralisation;
- Boumou: drilling planned to target extensions of known veins as well as initial drill testing of veins in the Boumou prospect area that have returned high grade surface samples;
- New targets: geological review and mapping has identified new targets for drilling testing.
Kodal is planning to extract a 5 000 t bulk sample and export this material to China for test processing. The material will be sourced from the Ngoualana and Sogola prospects. The aim is to complete large scale testing of the full production processes from run of mine material to a saleable lithium carbonate product.
Kodal is currently reviewing options for contract mining of the sample before shipping it to China. This bulk sample is expected to take three months to mine and transport from commencement date.
Metallurgical testwork is continuing on the diamond drill core obtained from the Ngoualana prospect. The aim of this programme is to provide further details on the metallurgical characteristics of the ore as well as a full suite of comminution tests. In addition, samples will be sent to a metallurgical laboratory in Australia for verification and check work.
Kodal is continuing a programme of ground magnetic surveys targeting areas of known pegmatite intrusion and following these into areas of transported cover and vegetation.
The initial surveys over the Ngoualana and Sogola-Baoule prospects are still being reviewed and processed, however initial indications demonstrate that the prospects, and extensions to the structures, can be identified in the surveys and areas of potential offset and parallel positions have been highlighted. This interpretation work is continuing and is being undertaken by Kodal staff and consultants.
“Kodal is well funded to undertake this programme and continue the necessary exploration and definition drilling required to assess our very large and prospective landholding. The drilling programme is testing a substantial number of new targets and extensions along with a number of geophysical targets. While the company is still actively expanding the known areas of mineralisation, we are not looking to establish a JORC Mineral Resource estimate. This position will be reviewed at the end of the current field season,” says Aylward.