Yuinmery prospects, Youanmi, Sandstone Shire, Western Australia, Australia
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|Latitude & Longitude (WGS84):||28° 35' South , 119° 54' East|
|Latitude & Longitude (decimal):||-28.5833333333, 119.9|
Copper, gold, PGE, nickel and zinc prospects. Located 80 kilometres south-west of Sandstone and 5 kilometres north-east of the Youanmi mine. Located in the Youanmi Greenstone Belt, a synclinal sequence of chloritised felsic tuffaceous rocks, sulphide bearing chert, gabbros, basalt and ultramafics. The copper-gold is found in the felsic volcanics and platinum group elements- nickel in large layers of the mafic/ultramafic intrusive complex. The Just Desserts prospect contains an estimated resource of over 1 million tonnes at 1.82% copper and 0.78 g/t gold. Other prospects include YC5, YC11, YC14, Augustus and A Zone. YC14 and A Zone show massive sulphide Cu-Au. A Zone which is 1.3 kilometres north of Just Desserts also contains zinc in the upper levels and copper-gold in the lower levels of the horizon.
Large widths of low grade platinum-palladium has been discovered at the Constantine prospect at 0.49 g/t Pt and Pd, and 0.22% nickel. This is associated with massive sulphides in at least two horizons of a major layered mafic/ultamafic intrusivce complex with a 13 kilometre strike length.
4 entries listed. 4 valid minerals.
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Marston, R.J.(1979): Copper Mineralisation in Western Australia, Geological Survey of Western Australia (1979)