Tanzania's graphite miner widens exploration zone

Black Rock Mining has doubled the mineralised zone of the Cascade prospect and will soon release assay results from the Epanko North at its graphite project in Mahenge area, Morogoro Region.

Mahenge has an initial Exploration Target of between 30 million and 60 million tonnes at 8per cent to 12per cent TGC and is contiguous to Kibaran Resources’ Epanko orebody.

A maiden resource from Epanko North is a key objective of the exploration programme. Early stage drilling is confirming extensive graphite mineralisation at Epanko North and Epanko Northeast with 1,500 metres drilled in the first month.

Mapping and sampling at Cascade has returned surface results of up to 20.4per cent total graphitic content and significantly increased the strike length and width of the mineralised zone.

Cascade is being systematically pit sampled and trenched, confirming zones of high grade graphite mineralisation within a 1300 metre by 800 metre area.

The 22 kilometre long Kituti structure is being mapped/sampled in detail to determine drill targets and metallurgical samples have been prepared from Epanko North for test work.

An aerial survey has been flown over the company’s main prospects, providing high resolution contour maps and photographs.

“We have an excellent exploration team on the ground at Mahenge managing two drill rigs at Epanko North and two separate programmes at Cascade and Kituti,” Steven Tambanis, managing director commented. “Assay results have started to return from the laboratory with good results.

“This team is working to deliver a maiden resource from Epanko North and new drill targets from other areas.” Work is focused on infill drilling the western lode of Epanko North to determine its bulk tonnage graphite potential. 

Over 1,500 metres of reverse circulation and diamond has been drilled in the first month of drilling.

The first infill hole of this programme at Epanko North drilled a highly encouraging 120 metre graphitic schist interval from 10 metre down-hole, indicating that this section hosts substantial widths of graphite mineralisation.

Maiden drilling at the Epanko Northeast lode returned zones of exceptionally coarse graphite from the first few drill holes with graphite flakes up to 8mm by 8mm, despite being pulverised by the reverse circulation hammer when drilled. High grades are expected from this section.

Epanko Northeast (600 metres east of, and parallel to Epanko North) is a narrower, higher-grade graphite structure with >10per cent TGC trench grades. This lode is being drilled with the objective of defining a higher-grade source of graphite mineralisation in a separate pit.

The 22 kilometre long Kituti structure is being traversed, mapped and trenched in more detail to determine wider mineralised zones for drill testing.
To date, this structure has not been comprehensively mapped. 

The two drill holes completed at the Kituti prospect indicate that graphite mineralisation is near vertical in two parallel lodes with potential for significant tonnage along the 22 kilometres strike of the structure.

“We are delighted with the highly encouraging initial results from Epanko North and Cascade. “The large field team is ensuring considerable progress and news flow over the next three months.”
Source: Daily News, reported from Dar es Salaam, Tanzania
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