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Tindals Gold Mine, Coolgardie, Coolgardie Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 30° 59' 9'' South , 121° 10' 29'' East
Latitude & Longitude (decimal): -30.98607,121.17484
GeoHash:G#: qdqptrhv4
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


This is a gold mine about 5 kilometres south south-east of Coolgardie. It is presently operated by Focus Minerals Ltd.

The underground mine here accesses five main ore bodies: Tindals, Cyanide, Perseverance, Empress, and Countess. (Perseverance is not the same mine as the one near Leinster, where some specimens have come from). Cyanide has been abandoned for thirteen years. The underground workings are at a shallow depth of 400m, and have an expected mine life till 2017. There is another ore zone called Bird in Hand, but at present (2012) this has not been mined.

Open pit mining is also occurring at three locations in the immediate area, which started mid 2011. Prior to this, to June 1994, the mine had produced 1 241 000 tonnes of ore at 4.15 g/t yielding 5150 kg Au. The host rock is komatiites intruded by dolerite, gabbro, and quartz porphyry sills. There are narrow (under 20 m) oblique dextral brittle ductile shear zones located along the sub-vertically north striking sills/komatiite contacts.

The main lode strikes north-south, as a discontinuous series of overlapping lenses of felsic intrusive material, separated by thin walls of amphibolite schist. The lenses pinch and swell, join and separate, and pinch out completely at depth and strike.

The schist is intruded by 30-60 metre post folding body of coarse to medium grained altered leucogabbro. The lenses contain stockworks of veinlets disseminated within aplite, and within less mineralised zones of fine grained silicified material with minor sulphides.

The deposit lies on the south fold limb of an east-west fold system, in recrystallised mafic schist, within a series of mafic to ultramafic lavas, interbedded clastics, and minor graphitic slates.


Commodity List

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


Mineral List


17 valid minerals.

Rock Types Recorded

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Alphabetical List Tree Diagram

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: 3187518
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: 904751
ultramafic and minor mafic rocks 74475

Age: Archean (2500 - 4000 Ma)

Description: Tremolite-chlorite-talc amphibolite, metapyroxenite, pyroxenite, peridotite, serpentinite, ultramafic schists, komatiite, high-Mg basalt; also chalcedony, silica, jasper, silcrete, silica cap rock on ultramafic rocks

Comments: igneous ultramafic intrusive; meta-igneous ultramafic volcanic; synthesis of multiple published descriptions

Lithology: Igneous ultramafic intrusive; meta-igneous ultramafic 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)
Witt, W.K., Knight, J.T, Mikucki, E.J. (1997), A Synmetamorphic Lateral Fluid Flow Model for Gold Mineralisation in the Archean Southern Kalgoorlie and Norseman Terraces Western Australia, Economic Geology, 92:407-437: 1997
Geological Society of Australia (W.A. Division) (1994), 12th Australian Convention. Excursion Guidebook 8. Ore Deposits of the Eastern Goldfields W.A., September 1994. (Ed: Witt, W.K., Groves, D.I., Ho, S.E.).
Mock, C., Elliott, B.G., Ewers, G.R., Lorenz, R.P. (1987), Gold Deposits of Western Australia, BMR, Datafile (MINDEP), Resource Deposit 3, Department of Primary Industries and Energy, Bureau of Mineral Resources Geology and Geophysics, Commonwealth Government of Australia, 1987

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