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North Kalgurli Gold Mine, Golden Mile Mines, Kalgoorlie-Boulder, Kalgoorlie-Boulder Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 30° 46' 31'' South , 121° 29' 48'' East
Latitude & Longitude (decimal): -30.77526,121.49662
GeoHash:G#: qdw2utx1h
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate


The spelling of the mine name is correct, and should not be Kalgoorlie but Kalgurli. There was also a South Kalgurli Mine on the Golden Mile.

North Kalgurli Gold Mines registerred in 1895 around the same time as other companies were forming to develop the mines on the Golden Mile. It was however the only one to retain its identity and independence all the way to 1989, when all leases on the Golden Mile were taken over by the Superpit. Measurements are in imperial in keeping with the historic references.

Early development saw the opening of ore bodies to a depth of 500 feet. The ore bodies were generally short and rich, unlike the other major mines which tended to access one large and rich lode. North Kalgurli Gold Mines and Brookman Brothers Mining Company amalgamated in 1901 and formed the North Kalgurli Company. In 1912 the company re-organised as the North Kalgurli (1912) Limited. In 1928 it purchased neighbouring Oroya Links Company, and at this time North Kalgurli owned 147 acres in total.

Up to 1903 the North Kalgurli Mine has produced 12 578 ounces of gold, valued at 40 300 pounds in 1903 prices, treated 1300 tonnes of ore, and was making on average 1500 pounds in profit per month.

In 1909 there was a lack of capital to develop the mine further and its leases were let out to tributors. This remained the case till 1930. In these years the tributors in total only processed 160 795 tonnes of ore for 90 292 ounces of gold.

Most other major mines on the Golden Mile had already long worked the rich deep lodes. North Kalgurli had not when it operated in its early years, or by the tributors later. Much of their leases remained unexplored. When the 1930's gold mining boom hit, the company took over directly operating the mine itself, with a major resource of ore reserves intact.

It was one of the first mines on the Golden Mile to realise the value of the calc schist. The old theory was this deep ore was valueless. At its contact with the gold bearing quartz dolerite lodes above it, nearly always proved to have no gold at the contact. However further down in the calc schist the gold values were just as good.

The historic shaft was called North Shaft or North Kalgurli Shaft. There was also a Genevieve Shaft. Immediately north of the lease the company controlled the Union Jack leases and in the 1930's the Union Jack Shaft was developed. In the 1930's ore from both was trucked to its South Kalgurli Mine treatment plant. The company owned this lease but was operated as a totally separate company.

Injuries and deaths of miners was a common occurrance in the early years of mining. That this situation continued from the 1930s to 1950s at North Kalgurli can only indicate an entrenched and dis-appointing focus on safety.

The mine continued to operate in the 1960s, but must have closed sometime in the early 1970's as by 1976 there was no mining on the Golden Mile due to depressed gold prices. Mining continued in the 1980's both underground and in several small open pits accessing near surface residue ore. In 1989 North Kalgurli was taken over for the Superpit.


Commodity List

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


Mineral List


37 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

Quaternary
0 - 2.588 Ma



ID: 742372
colluvium 38491

Age: Pleistocene (0 - 2.588 Ma)

Description: Colluvium and/or residual deposits, sheetwash, talus, scree; boulder, gravel, sand; may include minor alluvial or sand plain deposits, local calcrete and reworked laterite

Comments: regolith; synthesis of multiple published descriptions

Lithology: Regolith

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)
The Advertiser newspaper (Adeliade) (1933):Noth Kalgurli Company Mines. Promising Future (25 Jul 1933)
Kalgoorlie Miner newspaper (1925):Oroya Links Mine. Sale to North Kalgurli. Conditional Agreement (06 Apr 1925)
Western Mail newspaper(Perth) (1937):Calc Schist Areas. Value to Kalgoorlie Field (29 Apr 1937)
Sunday Times newspaper (Perth) (1933):North Kalgurli Mine (10 Sep 1933)
Western Mail newspaper (Perth) (1901):Brookman Brothers Boulder. Amalgamation with the North Kalgurli Mine (31 Aug 1901)
Simpson, E.S. (1948), Minerals of Western Australia, Vol 1, 2 & 3, State Government of Western Australia, 1948

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