Drilling is off to a good start at East Asia Minerals‘ (EAS-V) Miwah gold project in Indonesia’s Northern Sumatra Island with some near-surface mineralization.
Assays for the first two drill holes have come in so far. One returned 57.1 metres grading 1.71 grams gold per tonne, including 38.3 metres grading 2.78 grams gold. Mineralization occurred between 10.9 metres and 68 metres depth.
The second drill hole returned 158 metres grading 1.71 grams gold per tonne and 66 metres grading 3.29 grams gold. Similar to the first hole, mineralization was found between 8.3 metres and 166.3 metres downhole depth.
Both holes were drilled from the same drill pad located about 200 metes east of the western end of the Main Miwah gold zone.
The first hole was drilled towards the east to 159.3 metres, but was cut off by a northerly trending structure.
The second hole was aimed towards the west to 200 metres.
Mineralization for both holes are said to be open and contiguous to surface where several rock sawn samples returned positive assays including 14 metres grading 9.22 grams gold per tonne near the first hole and 18 metres grading 2.86 grams gold per tonne near the second hole.
East Asia has completed a third drill hole from the same drill pad but hasn’t received the results for it yet.
And a fourth hole is currently in the making. It’s being drilled to validate a historic hole which returned 71 metres grading 1.42 grams gold per tonne in the 1990s. This new hole is being extended further than the historic hole to test the west bounding structure – the Camp Fault – to the Main Miwah gold zone.
About 3,000 metres of drilling was done on the project totaling 11 holes in 1997 by a different company.
East Asia says that historical data, which is not acceptable for use under National Instrument 43-101, said the project had the potential to host 100 million tonnes grading 1.1 to 1.2 grams gold per tonne. However, the company has reviewed the historical data and now hypothesizes that the earlier drilling was done parallel to a higher grade structure at surface (higher than about 5 grams gold per tonne).
And because of that East Asia is looking for greater mineralized tonnage and significantly higher overall grades once it gains a better geological understanding through its exploration program.
So far, Miwah has two components: a thick tabular zone that is 1,200 metres long 300-400 metres wide and 200 metres thick and vertical feeder zones that are beneath and cut through the tabular zone.
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