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Yilgarn Star Gold Mine, Marvel Loch, Yilgarn Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 31° 31' 57'' South , 119° 40' 21'' East
Latitude & Longitude (decimal): -31.53257,119.67255
GeoHash:G#: qdmhe5wvk
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


40km SE of Southern Cross

The Yilgarn Star Gold Mine is approximately 20 kilometres south-east of Marvel Loch, and 5 kilometres east of the Great Victoria Mine, opposite which is the access road. The mine is a large narrow west north-west to east south-east trending open pit, with apparently underground workings. The mullock plateau is directly north of the pit.

Located in the brittle-ductile Yilgarn Star Shear Zone, at the contact with mafic-ultramafic sequence, and a metasedimentary sequence on the south south-east flank of the Ghooli Dome. The Footwall contains high Mg basalts, and Hanging Wall argillic and arenitic metasedimentary rocks.

No old historic information could be found for the Yilgarn Star name, and it may have been a modern discovery. Open pit mining began in 1991 by Gascoyne Gold Mines NL. Underground mining commenced in 1995. The mine produced over 100 000 ounces of gold per annum. Sons of Gwalia Ltd took over Gascoyne in 1996. When this company folded, St Barbara took over the leases in the area, then in 2013 Hanking Mining Ltd. The mine has not been active for many years.


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 valid minerals.

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: 3189632
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]

Archean
2500 - 4000 Ma



ID: 732350
mafic extrusive rocks 74255

Age: Archean (2500 - 4000 Ma)

Description: Metabasalt, high-Mg basalt, tholeiitic basalt, carbonated basalt, agglomerate, mafic schist, dolerite, amphibolite; porphyritic basalt and dolerite; komatiitic basalt; mafic pyroclastics; minor mafic schist with granite intercalations

Comments: igneous mafic volcanic; synthesis of multiple published descriptions

Lithology: Igneous mafic volcanic

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)
Australian Mining Consultants (1995) Yilgarn Star Mine, Digging Deeper Newsletter, July 1995.
Rudenno, V (1998) The Mining Valuation Handbook: Mining and Energy Valuation for Investors and Management, 1998.
Eilu, Pasi. (2003) Exploration for orogenic gold deposits, Fennoscandian Exploration and Mining 2003, Rovaniemi, Finland, 72p.

 
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