|Latitude & Longitude (WGS84):||27° 59' 29'' South , 119° 18' 46'' East|
|Latitude & Longitude (decimal):||-27.99159,119.31304|
|Köppen climate type:||BWh : Hot deserts climate|
The Oroya Gold Mine is 500 metres east of the Sandstone townsite, and is marked by a north-south abandoned open pit, developed by Herald Resources in the 1990's. Remnant battery sands are just south of the pit, and the tailings to the east.
In 1903, George Dent and the Hack brothers discovered gold just south of the present Sandstone town site. A few days later Tom Payne (after whom Paynes Find is named) discovered gold at the Oroya site. Payne sold the mine to the Oyoya Black Range Company Ltd, who worked the mine until 1914. During this period it yielded 364 000 ounces, and was the pre-eminent mine in the district.
On ANZAC Day 1932, lone miner, Samuel Ure became trapped in the old workings by a fall of earth. Jack Tetlow, Jimmy Boase and Billy Pease launched a rescue effort, however a few metres from Samuel were almost trapped by another fall of earth. Despite a concerted effort, rock continued to fall and the rescue effort had to be abandoned. A properly equipped team then spent one week trying to retrieve the body without success, and he remains buried somewhere in the old workings.
The mine is located on part of the Sandstone Reef. Drilling by Western Mining Ltd before the Herald mine identified several Hanging Wall structures, and a broader alteration halo from the main reef. At the time, the resource was estimated to hold 336 000 tonnes of ore at 4.29 g/t, and a laterite resource of 186 000 tonnes at 4.0 g/t (0.5 g/t cut-off).
The mine is located in the Sandstone Greenstone Belt, a triangular north plunging antiform, at the conjunction of the major trans-cratonic Youanmi and Edale Faults. The greenstone belt consists of mafic volcanic and intrusive rocks with subordinate ultramafics, banded iron formation and siliclastic sediments. Granitoid plutons associated with the Diemals Dome intrude the southern margin of the belt.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
14 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
0 - 2.588 Ma
Age: Pleistocene (0 - 2.588 Ma)
Comments: regolith; synthesis of multiple published descriptions
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). 
|Neoarchean - Mesoarchean|
2500 - 3200 Ma
|Archean volcanic rocks|
Age: Archean (2500 - 3200 Ma)
Comments: Yilgarn Craton
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.