Alma Mine, Condobolin, Cunningham Co., New South Wales, Australia
|Latitude & Longitude (WGS84):||32° 56' 47'' South , 146° 57' 56'' East|
|Latitude & Longitude (decimal):||-32.94658,146.96580|
|Age:||541 ± 1.0 to 443.8 ± 1.5 Ma|
|Geologic Time:||: Cambrian to Ordovician|
|Reference for age:||Gilligan, L.B., Suppel, D.W. (1993) Metallogenic Study and Mineral Deposit Data Sheets: Nymagee 1:250 000 Metallogenic Map (SI/55-2). Geological Survey of New South Wales, Sydney, 171 pages.|
|Köppen climate type:||BSk : Cold semi-arid (steppe) climate|
A former underground mine worked via shafts, shallow pits and open cut.
Operated 1898 to 1930s.
8 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
|Late Ordovician - Early Ordovician|
443.8 - 485.4 Ma
Age: Ordovician (443.8 - 485.4 Ma)
Stratigraphic Name: Girilambone Group
Description: Deformed and metamorphosed, micaceous, quartzose and quartz-lithic sandstone, pelite, chert; minor intercalations of polymictic conglomerate, siltstone, quartzite, and mafic and intermediate volcanics.
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).