Initial field reconnaissance has validated historical drilling which highlighted the presence of widespread copper anomalism at DMC’s Gibb River project in WA’s East Kimberley region.

Orientation geochemical sampling carried out during the visit confirmed the presence of copper anomalism – with results of up to 315 parts per million copper – within shale units of the Pentecost Sandstone Formation, at the Middle to Lower member (Pkpm and Pkpl respectively) contact zone.

This validates rock sampling and percussion drilling carried out by Durack and Anglo Exploration in the 1970s which also contained widespread copper anomalism around this contact.

Assays are also pending for the legacy Exploration Incentive Scheme (EIS) funded drillhole KCDD19001, which confirmed the presence of sulphide minerals hosted in veins and fractures of the Carson Volcanic unit but was never assayed.

Importantly, DMC Mining (ASX:DMM) comparison of its geochemical results with Geological Survey of Western Australia interpreted bedrock geology has made it very apparent that the anomalism trends along the Pkpl – Pkpm contact with grades increasing to the east.

This is an easily recognised geological contact as it forms a low-level ridge.

“We are very encouraged by these results and DMC is forming the opinion that the Gibb River Cu Project represents an outstanding exploration project,” executive chairman David Sumich said.

“DMC has secured the entirety of the open areas using our exploration model and thus represents an exploration project with substantial size and scale potential.”

Further work

Besides the pending assays from KCDD19001, the company is also awaiting assays from sampling of the Carson Volcanic Unit and contact with the Warton Sandstone.

Results from this work are expected in late January 2023.

DMC is also progressing the application through to granting.




This article was developed in collaboration with DMC Mining, a Stockhead advertiser at the time of publishing.


This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.