PepinNini Minerals (ASX: PNN) has confirmed the presence of underlying prospective mafic rocks at the Yagen and Alma Prospects in the Cooperinna Block (EL 4587) as it continues its search for magmatic nickel-sulphide deposits in South Australia.
This follows infill vacuum soil drilling undertaken across parts of the Cooperinna Block during the early part of 2013 to regolith map and geochemically assess nickel-copper prospect areas identified from the V-TEM helicopter electromagnetic survey flown in 2012.
Geochemical results from the 279 sample collected from the 225 vacuum soil holes across the Yagen, Alma, Pegasus, Cactus and Deception prospects contributed to the bedrock mapping of prospect areas and have assisted in the recognition of more prospective portions of the interpreted mafic Intrusion.
Results from the survey included up to 480ppm nickel, 320ppm copper, 280ppm cobalt, 780ppm chrome, 12.1ppb platinum, 21ppb palladium, and 161ppb gold.
The geochemistry also demonstrates that the western end and south western margin of the Yagen Intrusion may host the most prospective portions of the largely concealed mafic intrusion which includes both the Yagen and Alma Prospects.
The vacuum regolith holes complement the 2011-2012 vacuum drilling and a combined total of 646 vacuum soil holes have now been completed across the Cooperinna Block.
Diamond drilling of the electromagnetic targets at the Alma Prospect using its own diamond drill rig is continuing.
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