Latitude & Longitude (WGS84):	30° 15' 47'' South , 116° 0' 7'' East
Latitude & Longitude (decimal):	-30.26323,116.00214
GeoHash:	G#: qdd7zdwpv
Locality type:	Cave
Köppen climate type:	Csa : Hot-summer Mediterranean climate

6 kilometres north-west of Watheroo. When the authors of the reference were re-examining the E.S. Simpson collection a previously mis-identified specimen of sampleite was discovered. The specimen was collected in 1907-1908 by A. Monger, probably during guano mining. The sampleite is an alteration product of copper sulphides in contact with guano. Also found on the specimen was atacamite, weddellite and gypsum, on goethite and manganese oxide coated friable quartz rock. The sampleite occurs as platy spheriodal aggregates.

The country rock is a partially silicified proterozoic dolomite intruded by dolerite dykes. The cave forms a 61 metre diameter collapsed doline with 26 metre high cliffs. At one point along the cliffs is a large but shallow cave. The site is easily accessed, and signposted from the main highway.

The reference notes R Adams of Electrolytic Zinc Co. of Australia, found a small chalcopyrite vein in the cliff wall near the cave. This vein had been altered by guano to crusts of atacamite with weddellite and minor sampleite. Numerous visits by the authors of the reference also located birnessite, halite, dolomite, taranakite, todorokite, apatite and malachite. The general impression is nothing was found in great quantities.

Mineral List

12 valid minerals.

Rock Types Recorded

Regional Geology

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

Neoproterozoic 541 - 1000 Ma ID: 709220

Coomberdale Subgroup Age: Neoproterozoic (541 - 1000 Ma) Stratigraphic Name: Coomberdale Subgroup Description: Sandstone, siltstone, dolostone, stromatolitic dolostone and silicified dolostone. Comments: sedimentary siliciclastic; sedimentary carbonate; synthesis of multiple published descriptions Lithology: Sedimentary siliciclastic; sedimentary carbonate 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). [5]

Mesoproterozoic 1000 - 1600 Ma ID: 3188642

Mesoproterozoic sedimentary rocks Age: Mesoproterozoic (1000 - 1600 Ma) Comments: Yilgarn Craton Lithology: Sandstone,shale 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. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References