Olympus Pacific Minerals (OYM-V) is bullish about partial assay results from an 18-hole, 2,100-metre drilling program on the Phuoc Son gold project in central Vietnam.
The drilling was aimed at testing a skarn zone, the Khe Rin prospect, which was previously the site of artisanal gold mining. The zone extends along a contact between mostly mafic and felsic schist sequences.
Selected results from three of seven holes returned 0.25-6.45 grams gold per tonne over widths of 1-10 metres. Gold values of 30-68.3 grams were recovered over widths ranging from 0.3 to 0.7 metre.
The results confirm the presence of gold mineralization associated with zones of quartz veining, skarn alteration and probable intrusive rocks. The best grades occur in quartz-veined sections of the intrusive body.
The mafic-felsic contact lies within a 3.5-km-long, northerly trending, mineralized belt which is host to several other artisanal mining areas, including Khe Kop to the north and Khe Do to the south.
Drilling has tested 350 metres of the mineralized belt’s strike length to an average vertical depth of about 70 metres.
Previously, grab samples derived from a series of adits created by artisnal miners at Khe Rin returned between 0.86 to 391.3 grams gold per tonne. Mineralization is associated with pyroxene skarn rocks containing pyrhotite- chalcopyrite-molybdenite and finely disseminated native gold.
Surface mapping has traced the zone for more than 800 metres along strike, with widths ranging up to 300 metres.
A program of follow-up geological mapping, surface rock sampling, grid soil sampling, and assaying and petrographic analysis of split drill core is under way. An expanded drilling program along-strike and to deeper levels will resume once all of the current drill results have been analysed.
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