Mammoth Mine, Mount Gordon, Gunpowder District, Mount Isa City Shire, Queensland, Australia
|Latitude & Longitude (WGS84):||19° 41' 54'' South , 139° 21' 56'' East|
|Latitude & Longitude (decimal):||-19.69836,139.36572|
|Köppen climate type:||BSh : Hot semi-arid (steppe) climate|
Underground copper mine.
Copper oxide mineralisation was first discovered in the district at Mt Oxide in 1882, followed by the discovery of the Mammoth deposit by two Afghan cameleers, the Shah brothers in 1923. They worked the deposit as a small open cut from 1927. Between 1948 and 1969 the deposit was worked as a small-scale underground operation by Italo Foschi, who sank two shafts with three sub-levels. VAM Ltd, Consolidated Goldfields and Adelaide Brighton produced copper in concentrate and copper cathode from the Mammoth deposit between 1969 and 1995. Aberfoyle purchased the operation in 1995 and delineated the Esperanza deposit before being acquired by Western Metals Limited (“Western Metals”) in 1998, which commissioned the ferric leach plant that year to treat Esperanza ores. The Mammoth underground mine was reopened in late 2002.
Aditya Birla Minerals acquired the operations in November 2003 from receivers appointed for Western Metals.
8 valid minerals.
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
1600 - 2500 Ma
|Paleoproterozoic sedimentary and volcanic rocks|
Age: Proterozoic (1600 - 2500 Ma)
Comments: Mount Isa Block
Lithology: Mafic 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. 
1600 - 1800 Ma
Age: Statherian (1600 - 1800 Ma)
Stratigraphic Name: Myally Subgroup
Comments: metasedimentary siliciclastic; synthesis of multiple published descriptions
Lithology: Metasedimentary siliciclastic
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).