Western Mines kicks off high-powered EM survey at flagship Mulga Tank project

Western Mines ASX WMG EM survey Mulga Tank project nickel copper platinum group elements
Western Mines Group’s moving loop electromagnetic survey will cover 28sq km at Mulga Tank with a focus on discovering potential nickel-copper-PGE deposits.

Western Mines Group (ASX: WMG) has begun high-powered moving loop electromagnetic surveying (MLEM) at its Mulga Tank nickel-copper-platinum group elements project in Western Australia.

Mulga Tank, located on the under-explored Minigwal Greenstone Belt, is the company’s flagship project and current focus.

The survey covers 28sq km of the project area and will test the entire Mulga Tank ultramafic intrusion.

Managing director Caedmon Marriott said the focus will be on locating deposit sites.

Challenge is to find exact deposit locations

“We know that Mulga Tank intrusion shows clear evidence for a working magmatic sulphide mineral system: [how] the required geochemical processes occurred and nickel-copper-PGE sulphides were formed.”

“The challenge is locating deposit sites where massive sulphide mineralisation may have accumulated,” he added.

The MLEM survey is aimed at delineating buried electromagnetic bedrock conductors that could be associated with deposits of massive nickel-copper-PGE sulphides.

A 2013 MLEM survey identified 10 bedrock conductors across the intrusion.

Previous survey too low-powered

This was a low-powered survey and a number of electromagnetic targets were not able to be sufficiently identified for drill testing due to the survey lines running approximately parallel to some of the anomalies.

This include a “significant” anomaly running along the western side of the intrusion which was interpreted back then as being sourced by a “large and highly conductive bedrock conductor”.

Western Mines says the new planned survey should be able to resolve this target as well as better discern others

The 200m line spacing will be twice the resolution, and three times the power, of previous surveys. This will enable testing in far greater detail than former work.

Western Mines holds numerous other projects across major Western Australia mineral belts including the Rock of Ages project, which is located approximately 32km southeast of Laverton, and Jasper Hill (gold), with numerous prospective gold trends extending from the adjacent Lord Byron and Fish historical gold mines.

The company is also actively exploring Youanmi (gold), Pavarotti (nickel-copper-PGE), Broken Hill Bore (gold) and Pinyalling (gold).

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