The bulk-tonnage, low-grade target is in Azangaro province, near the town of Juliaca. The concession measures 8 by 5 km and covers 4,000 ha.
NDT can initially earn a half- interest by paying the vendor US$1.5 million over three years, including US$200,000 upon signing.
The vendor is a private company based in Lima.
NDT will carry out at least 2,000 metres of drilling in the first year.
Gold mineralization is hosted in a rhyodacite sub-volcanic intrusive, where the mineralized rock is strongly bleached, moderately to strongly silicified, and dissected by a diffuse network of silica stockwork stringers and limonite-stained fractures. Apparently, the occurrence of silica is related not to quartz veining but to pervasive volatile flooding, and there would seem to be a close correlation between gold and silica content, with the gold fairly evenly disseminated throughout the host rock.
The main zone of mineralization outcrops over an area that measures 1,000 by 400 metres and forms a northwest-trending ridge. The host rock is believed to be an intrusive sill that dips shallowly to the northeast. NDT has taken 37 chip samples in the exposed area; together, these averaged 1.15 grams gold per tonne with a high value of 3.79 grams gold. About half of the samples exceeded 1 gram per tonne.
An additional 24 samples, taken at an earlier date over an area measuring 400 by 250 metres, averaged 1.24 grams gold, with the highest value hitting 4.49 grams gold.
Both margins of the mineralized intrusive are covered by black carbonaceous shale. Along this intrusive-shale contact are numerous old prospect pits, where small, high-grade veins of stibnite (antimony) were historically mined. Samples from the waste material mined from these veins returned assays of up to 3.8 grams gold.
The host intrusive sill was emplaced in a sequence of Silurian-aged black shale. This impermeable unit is believed to have acted as a barrier to the dispersion of mineralization outward from the intrusive.
About 500 metres to the southwest of the main ridge, several isolated outcrops of mineralized rhyodacite are exposed. These outcrops assay up to 1.75 grams gold.
NDT has $3.6 million in working capital and 26.6 million shares fully diluted.
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