Vancouver – High grade oxide copper discovered on its Khok Adar project in western Mongolian has East Asia Minerals (EAS-V) looking for a nearby source.
Two distinct types of secondary copper mineralization have been observed at the company’s property, separated by northerly-trending structure.
West of the structure, exotic oxide copper minerals (typically azurite, malachite, cuprite, tenorite, chrysocolla and native copper) have been discovered within fractures and open pore fillings in a brecciated quartzite unit. Previous Russian exploration work on the eastern portion defined Zone 1, an area of chalcocite enrichment identified in a mixed sulphide-oxide zone.
East Asia is encouraged with its discovery and believes a significant copper source might exist on the ground, as known sulphide zones are not of sufficient size to account for the enrichment blanket.
The company is in the midst of its second phase exploration program, comprised of trenching and drilling. Assays are awaited from 10 RC holes (totaling about 1,100 metres) and 11 core holes (totaling about 2,000 metres) recently completed along strike of Zone 1. Drilling cut secondary sulphide copper (chalcocite and covellite) averaging about 15-20 metres thick and 120-200 metres in width. The copper mineralization was intersected in the mixed oxide-sulphide zone beneath strongly weathered rocks.
Drilling has returned long mineralized intervals (up to 90 metres) assaying from 1-2% copper and 10-20 grams silver per tonne, with high grade sections upwards of 9% copper. Additionally, surface trenching has exposed wide zones of copper oxide material, including Trench C1 returning 210 metres averaging 1.4% copper.
East Asia is one year into its three-year option deal to earn 75% in Khok Adar. The company must spend US$1 million on exploration over the course of the agreement.
Be the first to comment on "East Asia tracks western Mongolian copper"