Maghemite occurrence, Cobar, Robinson Co., New South Wales, Australia
|Latitude & Longitude (WGS84):||31° 24' 6'' South , 145° 28' 53'' East|
|Latitude & Longitude (decimal):||-31.40184,145.48139|
|Köppen climate type:||BSh : Hot semi-arid (steppe) climate|
Located approx. 35 km WNW of Cobar.
According to Byrnes & Gilligan, the "term 'maghemite' means shiny black pisolites of magnetic iron oxide which formed from magnetite during weathering (Smith 1979). Maghemite occurs as both a veneer covering sedimentary rocks over large parts of the Cobar sheet area, and also as metre-thick accumulations in present creek channels."
Maghemite also occurs in fossil stream channels, up to 5m thick.
Accordingly, the geo-co-ordinates are general in nature and indicate an area approximately 35km WNW of Cobar.
1 valid mineral.
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 - 0.0117 Ma
Age: Anthropocene (0 - 0.0117 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). 
Smith P.P.K. (1979) The observation of enantiomorphous domains in natural maghemite, Contributions to Mineralogy and Petrology, 69, pp249-254.