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Ravelstone manganese deposits, Peak Hill, Peak Hill Goldfield, Meekatharra Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 25° 33' 58'' South , 118° 40' 28'' East
Latitude & Longitude (decimal): -25.56627,118.67458
GeoHash:G#: qekqs9b1w
Locality type:Group of Deposits
Köppen climate type:BWh : Hot deserts climate


Located 5 kilometres north-west of Peak Hill. The manganese is supergene in origin, and related to the manganese shales of the Horseshoe Formation further north. The supergene zone structure is concentrated along an east trending shear zone. The ore is lateritic, and locally pisolitic, forming caps that overlie the primary manganese rich sedimentary material. The primary ore is pyrolusite.

There has been sporadic mining here from 1922 to 1960 from 3 leases. The manganese bodies strike east, up to 100 metres long and up to 30 metres wide. In 1963, the deposits were estimated at 4000 tonnes at 40% Manganese.

The Mindat co-ordinates are approximate.


Mineral List


1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

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

Cenozoic
0 - 66 Ma



ID: 796007
ferruginous duricrust 38498

Age: Cenozoic (0 - 66 Ma)

Description: Ferruginous duricrust, laterite; pisolitic, nodular, vuggy; may include massive to pisolitic ferruginous subsoil, mottled clays, magnesite, reworked products of ferruginous and siliceous duricrusts, calcrete, gossan; residual ferruginous saprolite

Comments: regolith; synthesis of multiple published descriptions

Lithology: Regolith

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]

Paleoproterozoic
1600 - 2500 Ma



ID: 3184366
Paleoproterozoic sedimentary and volcanic rocks

Age: Proterozoic (1600 - 2500 Ma)

Stratigraphic Name: Glengarry Group

Comments: Naberru Basin

Lithology: Mafic volcanic rocks; basalt; greywacke,iron formation,shale,sandstone,conglomerate

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



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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Pirajno, F., Occhipini, S.A. (1998), Geology of the Bryah, Geological Survey of Western Australia, 1998

 
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