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Cordierite gneiss outcrop, Brookton, Brookton Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 32° 22' 22'' South , 116° 55' 25'' East
Latitude & Longitude (decimal): -32.37274,116.92365
GeoHash:G#: qd5pudtpn
Locality type:Outcrop
Köppen climate type:Csa : Hot-summer Mediterranean climate


Brookton is located 138 km ESE of Perth.

In May 1977, G. Blackburn of Otter Exploration NL sent a specimen to the Western Australian Government Chemical Laboratories from an outcrop in the north-west section of land location 3323, near Brookton. This contained sampleite with quartz and iron oxides in cordierite gneiss of Archaean age. The copper was derived from sulphides and phosphate possibly from biological activity or from the use of superphosphate on the surrounding wheat paddocks. The reference was made as a minor comment about sampleite found in Western Australia, in an article about another location.


Mineral List


2 valid minerals.

Rock Types Recorded

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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

Archean
2500 - 4000 Ma



ID: 782014
gneiss, granulite, migmatite 74310

Age: Archean (2500 - 4000 Ma)

Description: Banded granitic gneiss (monzogranitic to granodioritic), quartzofeldspathic gneiss with mafic bands, migmatite, granofels, mafic and felsic granulites, hypersthene-plagioclase-quartz granulite; schist, pelitic or mafic granofels

Comments: high grade metamorphic rock; synthesis of multiple published descriptions

Lithology: High grade metamorphic rock

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]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3189638
Archean crystalline metamorphic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Yilgarn Craton

Lithology: Amphibolite/granulite grade orthogneiss

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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Bridge, P.J., Pryce M.W., Clarke R.M., Costello M.B.(1978): Sampleite from Jingemia Cave, Mineralogical Magazine (September 1978):42:369-371

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