Can CZR’s Edamurta Drilling Unlock High-Grade Massive Sulphides Near Golden Grove?

Geophysical Breakthrough at Edamurta

CZR Resources Ltd (ASX, CZR) has announced encouraging results from a recent Moving Loop Electromagnetic (MLEM) survey conducted over its Edamurta copper-silver-zinc project in Western Australia. The survey, covering a 2-kilometre section of the volcanic sequence, detected multiple highly conductive late-time plates that may indicate the presence of massive sulphide mineralisation at depth.

These findings are significant because massive sulphides are typically associated with higher-grade copper, zinc, silver, and gold mineralisation, which can underpin economically viable mining operations. The conductive plates identified by the MLEM survey represent new targets that were not intersected by previous drilling campaigns, which mainly encountered disseminated to stringer sulphides near surface.

Edamurta’s Golden Grove Analogy

Edamurta lies just 45 kilometres west of the world-class Golden Grove VMS deposits, which have produced substantial copper, zinc, gold, and silver resources over decades. CZR’s Managing Director Stefan Murphy highlighted the geological and mineralisation parallels between the two projects, noting that Edamurta’s volcanic sequence and surface gossans closely resemble those at Golden Grove.

Historical drilling at Edamurta, dating back to the 1970s and 1990s, confirmed the presence of copper and zinc mineralised zones but did not intersect massive sulphide lenses. The new geophysical data suggests that such accumulations may exist at depth, similar to the higher-grade lodes discovered below the shallower mineralisation at Golden Grove.

Next Steps, Drilling to Test Conductors

Building on these promising geophysical results, CZR has planned a 3,000-metre reverse circulation (RC) drilling program comprising 11 holes to test the high-conductance plates identified by the MLEM survey. This program is scheduled for the September quarter, subject to the completion of the sale of CZR’s Robe Mesa project.

Following the RC drilling, down-hole electromagnetic surveys will be conducted to refine the location and extent of any massive sulphide mineralisation. This integrated approach aims to unlock the high-grade potential of Edamurta, leveraging modern exploration technologies that were not available during earlier drilling campaigns.

Historical Context and Exploration Background

The Edamurta prospect has a rich exploration history, initially identified by Union Miniere Development and Mining Corporation Limited in the 1970s. Subsequent work by Dalrymple Resources and others confirmed the presence of a volcanogenic massive sulphide system with copper and zinc mineralisation. CZR acquired the project in 2012 and has since advanced exploration efforts, culminating in the recent geophysical survey.

The broader Buddadoo project, which hosts Edamurta, also includes a large vanadium-titanium-magnetite deposit, underscoring the region’s mineral potential. CZR’s ongoing exploration strategy focuses on leveraging cutting-edge geophysical techniques and targeted drilling to delineate new mineral resources.