Tertiary Minerals (LSE:TYM) reported a 121-metre intersection grading 78 grams per tonne silver equivalent from a depth of four metres at the Discovery Zone of its Mushima North Project in Zambia.
The company described the result as its best silver-copper intersection to date at the Discovery Zone. The drill hole ended in mineralisation.
Results were reported for 13 additional reverse circulation drill holes, all of which intersected near-surface silver-copper-zinc mineralisation. Several of the holes ended within mineralised zones, indicating that the mineralisation remains open at depth at those locations.
The latest drilling also returned the highest individual silver assay reported at the project to date, at 471 grams per tonne, alongside multiple copper intervals grading more than 1% over several metres.
Results to Support Mineral Resource Work
Tertiary Minerals said the latest results provide additional data relating to its existing near-surface Exploration Target of between 15 million and 30 million tonnes grading 40 to 60 grams per tonne silver equivalent at Target A1.
An Exploration Target is not a Mineral Resource Estimate, and the company is continuing drilling and evaluation work aimed at determining whether a formal resource can be established.
Management said the results support its evaluation of the Discovery Zone as a potential bulk-tonnage, open-pit silver project. The mineralisation also contains bismuth, antimony and cobalt, which the company is assessing as potential by-products.
Additional laboratory assay results remain outstanding and are expected to contribute to the company’s planned Mineral Resource estimation work.
Tertiary Minerals’ Mushima North Project
Tertiary Minerals is a mineral exploration company focused on silver, copper and zinc projects.
Its Mushima North Project in Zambia targets polymetallic mineralisation and is located in the country’s Iron-Oxide-Copper-Gold belt, near the historic Kalengwa copper-silver mine.
Reverse circulation drilling at the Discovery Zone is being used to further evaluate the scale and grade of mineralisation and provide data for planned Mineral Resource estimation work.
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