|Latitude & Longitude (WGS84):||25° 22' 38'' South , 116° 5' 5'' East|
|Latitude & Longitude (decimal):||-25.37737,116.08498|
|Köppen climate type:||BWh : Hot deserts climate|
Glenburgh Station is 111 kilometres east south-east of Gascoyne Junction. The Glenburgh prospects extend along a course north-east to south-west, about 10 kilometres north north-west of the pastoral station homestead. There is a strong chance a mine will be developed here one day.
Discovered by Helix Resources in 1994, and acquired by Gascoyne Resources from 2010. A feasibility study was conducted in 2013.
The prospects contain a JORC Indicated and Inferred resource of 21.1 Mt of ore at 1.5 g/t Au for 1.0 million ounces. The site is of interest as gold deposits are rare in upper amphibolite, and there is almost no alteration assemblages surrounding the deposits.
The prospects are in the paleoproterozoic upper amphibolite facies of the Glenburgh Terrane. Gold is free and disseminated within quartz-biotite-garnet gneiss, amphibolite, and quartz-chlorite veins. The lodes are discontinuous trending east north-east, within tight folds, dipping steeply north. It is offset by the Deadman Fault, which bisects the area.
Rock units are more specifically quartzofeldspathic biotite-cordierite-sillimanite-spinel-garnet gneiss, with inclusions of minor mafic granulite, mafic schist, pelite, psammite, metapegmatite, metagranite, amphibolite, Fe metasandstone, and quartzite. This dips either steeply north or south.
There is some disseminated pyrrhotite, pyrite and minor chalcopyrite.
The deposit was formed in a package of sedimentary rocks before the peak of the high grade metamorphism during 2005-1950 Ma Glenburgh Orogeny. The gold has been described as enigmatic, usually referring to an unknown or little understood process of how it was formed.
Prospects include from the north North-East 3, Zone 126, Zone 102, Hurricane, Shelby, Mustang, Apollo, Icon, Tuxedo, and Torino.
17 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). 
|Mesoarchean - Paleoarchean|
2800 - 3600 Ma
|Archean sedimentary rocks|
Age: Archean (2800 - 3600 Ma)
Stratigraphic Name: Narryer Complex
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.