re: Ann: Drilling of Granite Creek Intersects...
Drilling of Granite Creek EM anomaly intersects multiple sulphide zones Oroya Mining Ltd (ASX:ORO) advises that drilling of the second hole from site GC-01 to test the Granite Creek EM anomaly has intersected 24 metres of sulphide-rich zones so far and was drilling ahead at 324 metres on 3rd March. Three significant sulphide rich zones have been intersected: • 10 metres of disseminated sulphide from 100 metres • 12.2 metres including 5.8m of massive sulphide (about 50%)from 225 metres • 4 metres of disseminated sulphide from 299.5 metres The sulphide rich zones coincide with part of the major conductor predicted by the HeliTEM results. The mineralisation in the upper two layers is too fine grained to determine copper content but there is visible fine Chalcopyrite (copper sulphide) from 299.5 metres. The core is being processed for laboratory assay. True widths are unknown.
GC-01-A is oriented toward 090 (East) with 60 degrees dip and drilling will continue to 400 metres The sulphide zones are in altered granitic and volcanic rocks, indicating that the prospective fault contact with sedimentary rocks has not yet been intersected. If so this prospective target is still to be tested by this or future holes. The first drill hole from site GC-03-A near the western edge of the anomaly did not intersect strong mineralisation and was terminated at 250 metres.
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