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Selkirk Gold Mine (Dublin Castle; Coronation; Menzies Proprietary; Dublin Proprietary), Menzies, Menzies Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 29° 40' 59'' South , 121° 0' 50'' East
Latitude & Longitude (decimal): -29.68324,121.01393
GeoHash:G#: qdwp1srds
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate


The earliest date and probably original prospectors was the Wilson's Octagon Syndicate in early 1895 which controlled several leases known as 'The Hills', including the Friday, Robinson Crusoe and Selkirk, all in the general area west of the present First Hit open pit.

Later in the same year, the Menzies Gold Reefs Proprietary Ltd was floated in London to acquire the leases, with 175 000 pounds capital. Altogether there were seven leases totalling 122 acres. German geologist Bergrath Schmeisser was dispatched to investigate the company's new assets. The Selkirk had at this point an inclined shaft to 120 feet deep on the south side of a reef 1 foot wide. He dismisses the rest of the lease as largely worthless.

The general area contains many small leaders, which the company did not find worthwhile to pursue and abandoned the lease in 1900. These leaders started near the surface as a few inches, and would gradually widen at depth to 4 feet wide, before thinning again, and pinching out altogether.

It was then pegged by a local syndicate. At this point there appears to be two leases, adjoining each other called the Dublin Castle and Menzies Proprietary. Both had been pegged by syndicates of working miners. Dublin Castle by Dan O'Dea, Richard Scott, G. Brown, and F. Woosnam, while the Menzies Proprietary was worked by Mackay, Richards and Meyers. The Dublin Castle had three relatively shallow shafts.

It appears Richard Scott, along with his brother Joseph (possibly also Arthur), became paramount, and had taken over ownership of both leases by 1911. The name was changed to the Coronation. The last activity reported by them was in 1913. Since 1905 the mine had produced 2335 tonnes of ore for 2848 ounces of gold at 25.2 dwt. It had produced about 40 000 pounds money-wise of gold in early Twentieth Century figures.

During the 1930's gold boom, interest was again shown in the lease, this time named Dublin Proprietary, however nothing was found that active mining took place.

In 1997, a small open pit was developed by Paddington Gold, with the ore transported for processing to their plant near Broad Arrow.

The total produced during the mine's underground period was approximately 5000 tonnes of ore at 24.0 g/t yielding 3858 ounces of gold. During the recent open pit development, 42 000 tonnes of ore was extracted at 4.60 g/t yielding 6212 ounces of gold. The remaining resource is 18 000 tonnes of ore at 8.95 g/t yielding 5201 ounces of gold.

Selkirk is a small south-west plunging deposit, within amphibolite rocks, and consists of 1 quartz vein extending 40 metres along strike and up to 2 metres wide, with a small alteration zone. Pyrite and arsenopyrite are the dominant sulphides, with some chalcopyrite, galena, and sphalerite.

Gold is hosted in fine grained mafic amphibolite, and talc-chlorite schists. The eastern amphibolite section is separated from the western ultramafic section, by a thin black shale unit.

The large west dipping, south plunging, 1 to 2 metre wide quartz vein has developed where two shears in the ultramafic schists have converged. The ore zone also contains conjugate sets of north-south, and east-west vein arrays, within a north-west trending biotite zone. The ore contains pyrite, pyrrhotite, arsenopyrite, galena, sphalerite and unspecified copper compounds.

The open pit is 1.6 kilometres north-west of Menzies, bordering the north side of the Menzies-Sandstone Road.


Commodity List

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


Mineral List


10 valid minerals.

Rock Types Recorded

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Select Rock List Type

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

Archean
2500 - 4000 Ma



ID: 784939
amphibolite 74334

Age: Archean (2500 - 4000 Ma)

Description: Amphibolite, mafic schist, mafic rock intercalated with granite, para-amphibolite; metabasalt, metagabbro, metapyroxenite and metadolerite; Youanmi Terrane

Comments: meta-igneous mafic; synthesis of multiple published descriptions

Lithology: Meta-igneous mafic

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]

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]

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)
South Australia Register newspaper (Adelaide) (1895), Good Progress at Menzies, 01/05/1895
The Inquirer and Commercial News newspaper (Perth) (1895), Menzies Gold Reef Proprietary, 23/08/1895
Kalgoorlie Miner newspaper (1896), Menzies Gold Reefs Proprietary. Bergrath Schmeisser's Report, 11/02/1896
The Daily News newspaper (Perth) (1902), Menzies District, 22/09/1902
Kalgoorlie Miner newspaper (1907), Menzies Mining, 13/06/1907
Kalgoorlie Miner newspaper (1911), Menzies, 22/08/1911
Kalgoorlie Western Argus newspaper (1913), The Menzies North End. The Coronation Lease, 30/09/1913
Kalgoorlie Western Argus newspaper (1912), Menzies, 09/07/1912
Kalgoorlie Miner newspaper (1935), Menzies Gold Belt, 16/01/1935
Sunday Times newspaper (Perth) (1934), Menzies District. Use of the Diamond Drill, 07/10/1934
Rox Resources Ltd (2004), Prospectus. Independent Geologist's Report on the Menzies Project (Castle, M.), 12/02/2004

 
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