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White Rock Minerals announces an upbeat update

Mining News - Published on Wed, 22 Aug 2018

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White Rock Minerals Ltd announced an upbeat update on its exploration activities currently underway at its 100% owned high-grade zinc VMS Red Mountain project in Alaska. The first ever drill testing of the massive sulphide horizon discovered by recent ground reconnaissance at the project’s Hunter prospect has confirmed the zinc-rich massive sulphide discovery with massive sulphide intersected in the first two drill holes completed.

The Hunter prospect was recently discovered through geological ground reconnaissance, where a 60cm wide massive sulphide outcrop rich in sphalerite (zinc) and galena (lead) was found.

Subsequent prospecting mapped massive sulphide over 500m of strike within a carbonaceous phyllite that can be traced over one kilometre of strike. The zone of mineralisation is defined by anomalous soil geochemistry. Rock chip sampling of the massive sulphide from the discovery outcrop, as well as trenching along strike to define the position of the massive sulphide mineralisation, returned assay results up to 18.6% zinc, 5.4% lead, 2.3% copper, 147g/t silver and 0.7g/t gold.

The massive sulphide horizon occurs along a steep south facing slope, strikes east-west and dips at approximately 45° towards the north. The massive sulphide horizon is hosted towards the base of a sequence of carbonaceous phyllites at the contact with underlying maroon-green phyllites. The horizon is locally associated with the development of chert beds within the sequence. A number of faults are interpreted to offset the horizon locally.

Holes HR18-01 & HR18-02 tested the massive sulphide 50m down dip from the discovery outcrop on the surface and then a second follow-up hole another 30m down dip from that hole and on the same cross section.

The first drill hole (HR18-01) was located above the massive sulphide horizon up slope to the north and drilled vertically so as to intersect the massive sulphide at a shallow position and confirm the dip of the VMS horizon. It intersected 1.4m at 17.4% zinc, 3.9% lead, 1.6% copper, 90g/t silver and 0.2g/t gold from 48.25m down hole, for 25.8% zinc equivalent (ZnEq).

The second drill hole (HR18-02) targeted the massive sulphide horizon down-dip to the north from the same location. Both drill holes intersected massive sulphide mineralisation with high grade zinc, similar to the discovery outcrop. It intersected 1.8m at 13.8% zinc, 3.1% lead, 0.9% copper, 56g/t silver and 0.2g/t gold from 60.84m down hole, for 19.5% ZnEq.

Of course, as with all minerals exploration, success is not guaranteed — consider your own personal circumstances before investing, and seek professional financial advice.

Subsequently, a third hole (HR18-04) was drilled a further 80m down-dip and 5cm of massive sulphide within a 30cm interval of laminated pyrite was intersected. While HR18-04 didn’t intersect significant massive sulphide, the mineralisation at Hunter appears analogous to that at West Tundra, located nine kilometres to the east-northeast.

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Posted By : Rabi Wangkhem on Wed, 22 Aug 2018
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