Stokes Yard Prospect, Glen Helen Station, MacDonnell Region, Northern Territory, Australiai

Regional Level Types
Stokes Yard Prospect	Prospect
Glen Helen Station	- not defined -
MacDonnell Region	Region
Northern Territory	Territory
Australia	Country

Zn-Cu-Pb-Ag-Au prospect. Little could be seen at the location other than a small shallow prospecting pit. In remote country with no clear access track, roughly 20 kilometres west of the Glen Helen pastoral station homestead, between the geographic Mt Zeil and Haasts Bluff.

Discovered in the late 1960's by Asarco, who conducted extensive rock chip sampling, and an IP survey, identifying six anomalous zones. Across 1969-1970, the Northern Territory Mines Branch, sunk 5 drill holes, with more rock chip sampling, and remains the most authoritative source to date. Northern Mining, TNG, and Todd Resources have held the lease in recent decades. Northern Mining sent contractors in by helicopter to do some rock chip sampling, but none have done much with the prospect, apparently put off by the mines branch assessment that the prospect is very localised, minor mineralisation, reaching a depth of no more than 1.5 metres below ground, of epigenetic origin.

Described by the mines branch as pegmatite veins of argentiferous galena, with a suite of copper, and lead species, intruded into amphibolite, magmatic granite, and calc-silicate country rock. Hosted in the Madderns Yard Complex.

The mines branch determined grades at 12.2% Pb, 8.8% Zn, 0.27% Cu and 35.15 g/t Ag. Northern Mining found Zn samples up to 27.5%, 7.5% Cu, 7.5% Pb, and 130 ppm Ag.

Other Regions, Features and Areas containing this locality

References