Aim-listed Tertiary Minerals will embark on a drill programme of up to 1 500 m of air core (AC) and reverse circulation (RC) drilling at Target A1 of the Mushima North project, in Zambia.

The drill programme is designed to test the silver- and part of the broader zinc-in-soil anomaly over about 1.6 km of strike and up to 300 m width; to test the depth extension of mineralisation in key areas to a depth of up to 150 m; and to gain insights into the mineralisation styles and grade continuity.

The drill programme is being conducted by Ox Drilling, which also completed the initial drill programme undertaken at the project last year.

The drill programme is expected to begin in mid-July and will take about two to three weeks to complete. Samples will initially be analysed on site using a portable X-ray fluorescence (pXRF) analyser for copper and zinc.

Selected mineralised intervals will also be submitted for external assaying at a certified laboratory for a suite of elements, including silver, copper, zinc, bismuth, antimony and gallium.

“We are delighted to be drilling again at Target A1. This drill programme has been designed to follow-up on the highly encouraging initial drilling undertaken here in late 2024,” says Tertiary Minerals MD Richard Belcher.

He notes that previously announced results confirmed thick intervals of silver mineralisation commonly associated with zinc and/or copper over a width of 350 m at the northern end of the anomaly.

He says many of these holes ended in mineralisation, suggesting further depth potential.

The programme will test the full extent of this anomaly over an area of about 1.5 km by 300 m and with additional deeper holes to test the depth potential.

The Mushima North project is located in the prospective iron-oxide/copper/gold region of Zambia and is only 20 km east of the historic Kalengwa mine, which is currently under redevelopment.

“Target A1 is only one of several highly promising targets within the licence that warrants further investigation. I look forward to heading out to the project for the drill programme and updating shareholders on the results of the drilling in due course,” says Belcher.