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Ngarrin Creek, Callawa Station, East Pilbara Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 20° 45' 10'' South , 120° 24' 43'' East
Latitude & Longitude (decimal): -20.75303,120.41211
GeoHash:G#: qsm9un12v
Locality type:Creek
Köppen climate type:BWh : Hot deserts climate


The station is between Yarrie Station and Shay Gap. The fluorite prospect is at Ngarrin Creek, approximately 27 kilometres south south-west of the Callawa homestead, on a prominent hill west of 17 Mile Bore.

It is hosted by dacitic porphyry stock, intruded into Archean migmatitic quartz monzonite. There are two distinctive rock types. Firstly, a coarse porphyry containing large phenocrysts of quartz, feldspar and vugs of dark blue fluorite up to 50mm across. Secondly, fine porphyry with phenocrysts 3mm in diameter containing microcrystalline fluorite, at the south western end of the hill.

The Mindat co-ordinates are approximate.



Mineral List


2 valid minerals.

Rock Types Recorded

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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

Holocene
0 - 0.0117 Ma



ID: 931855
alluvium 38485

Age: Anthropocene (0 - 0.0117 Ma)

Description: Channel and flood plain alluvium; gravel, sand, silt, clay; may be locally calcreted

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]

Mesoarchean - Paleoarchean
2800 - 3600 Ma



ID: 3192979
Archean intrusive rocks

Age: Archean (2800 - 3600 Ma)

Comments: Pilbara Craton

Lithology: Intrusive igneous rocks

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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Fetherston, J.M., Stocklmayer, S., Stocklmayer, V.C.(2013): Gemstones of Western Australia -mineral resources bulletin 25, Geological Survey of Western Australia (2013): 192

Mineral and/or Locality  
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