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Mount Mulcahy, Glen Station, Cue Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 27° 2' 46'' South , 117° 42' 43'' East
Latitude & Longitude (decimal): -27.04614,117.71221
GeoHash:G#: qe5wns7kv
Locality type:Mountain
Köppen climate type:BWh : Hot deserts climate


Located 45 km north west of Cue.

In 1918, the owner of Glen Station, H. Ryan sent a parcel of ore for testing for this copper and silver deposit, 5 kilometres east from the homestead.

Explored by Union Oil, Homestake, and Hanna 1969 to 1972, Western Mining Corporation 1972-1974, and Pegmin/Seltrust 1981 to 1986. They described several lenses of polymetallic stratiform sulphides in chert, shale, phyllite and tuff. There were two gossans, 750 metres apart, on the south limb of an east plunging boat shaped syncline.

The lens plunge north north-west, the upper part at the basalt contact being sphalerite rich as disseminated and veinlet, while beneath this is pyrite rich.

Recently exploration companies have examined the deposit, drilling showing about 4.50% copper and more minor zinc, silver and gold. This was at a spot they call the South Limb Pod, described as shallow with weak weathering only extending a few metres below the surface, of a copper rich polymetallic volcanogenic massive sulphide deposit.


Mineral List


9 valid minerals.

Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3188304
Archean volcanic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Yilgarn Craton

Lithology: Greenstone belt; mafic-ultramafic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Paleoarchean
3200 - 3600 Ma



ID: 837854
mafic intrusive rocks 74270

Age: Paleoarchean (3200 - 3600 Ma)

Description: Mafic intrusive rocks, medium to coarse-grained; layered mafic to ultramafic intrusions; metadolerite; medium to coarse-grained metagabbro, dolerite and granophyre, local ultramafic bases

Comments: igneous mafic intrusive; synthesis of multiple published descriptions

Lithology: Igneous mafic intrusive

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
The Daily News newspaper (Perth) (1918) Copper Ore from Mt Mulcahy (27 Feb 1918).
Ferguson, K.M. (1999) Lead, Zinc and Silver Deposits of Western Australia. Geological Survey of Western Australia, Mineral Resources Bulletin 15.
Marston, R.J. (1979) Copper Mineralization in Western Australia. Mineral Resources Bulletin 13, Geological Survey of Western Australia, 208p. 

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