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White Rock Minerals discovers EM conductor within Alaskan zinc and precious metals project

A fixed loop EM at Cirque prospect has identified a clear conductive horizon with evidence of a second conductive horizon to the south.

White Rock Minerals Ltd - White Rock Minerals discovers EM conductor within the Red Mountain Zinc and Precious Metals VMS Project
White Rock Minerals is a diversified explorer and near-stage producer, headquartered in Ballarat, Victoria

White Rock Minerals Ltd (ASX:WRM) has discovered an electromagnetic conductor at Cirque prospect during reconnaissance of historical VMS prospects within the Red Mountain Zinc and Precious Metals VMS Project in central Alaska.

A surface geophysics crew has completed a single fixed loop electromagnetic survey across two horizons of massive sulphide that extend east under glacial till cover.

Modelling of the results by Newexco, a specialist geological and geophysical consulting firm, shows a clear long-wavelength anomalous response on four lines, consistent with a single, strike and depth extensive, conductive horizon.

Massive sulphide accumulations

Managing director Matt Gill said: “The potential for multiple VMS deposits throughout the company’s large tenement package expanded to 475 square kilometres last year, is now being understood.

“Our first ground geophysics survey on a historic prospect has identified the type of conductor that could reflect significant massive sulphide accumulations.

“We continue to be excited by the targets being generated and the opportunities that present for follow-up drilling.”

Oblique aerial view to the southwest at Cirque 

There are already two high-grade deposits at the Red Mountain project – Dry Creek and WTF - with an inferred mineral resource of 9.1 million tonnes at 12.9% zinc equivalent for 1.1 million tonnes of contained zinc equivalent.

The Cirque prospect was discovered in 1976 by RAA, Getty and Phelps Dodge.

Massive sulphide float blocks of up to 2 metres thick, occur within 300 metres of mineralised calcschist and carbonate outcrop.

Assays from 18 samples averaged 5.6% zinc, 1.7% lead and 0.5% copper.

Quick facts: White Rock Minerals Ltd

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ASX:WRM
Market: ASX
Market Cap: $7.36 m
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