Sandfire discovers massive copper sulphides at Doolgunna project

Image: Sandfire Resources.

Sandfire Resources has intersected narrow zones of sulphide and supergene copper mineralisation at the Morck’s Well project, part of a farm-in with Auris Minerals and Fe.

Morck’s Well is part of Sandfire’s greater Doolgunna project, which comprises over 6000 square kilometres of tenements surrounding the company’s 100 per cent-owned DeGrussa copper mine in Western Australia.

Aircore drilling has produced intersections with sulphide content in one hole from 112–113m and another from 149–151m that exceed 50 per cent sulphide content, meeting the criteria to be classified as massive sulphides.

As part of the terms of the farm-in, Sandfire will earn a 70 per cent interest in the Morck’s Well project from the definition of 50,000t (or more) of copper contained in a declared JORC mineral resource.

Other intersections showed visible supergene copper mineralisation (including native copper, malachite and chalcocite) from 72–73m and 75–84m. Pending assay results are expected to return further details regarding the holes.

Last month, Sandfire updated its mine plan, mineral resource and ore reserve for its flagship DeGrussa mine, which has had its operational life extended to 2022 from a previous 2021 outlook. Reserves now total 6.6Mt at 5 per cent copper and 1.6g/t gold for 332,000t of contained copper and 354,000oz of contained gold.

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