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Peach Tree Gold Mine, Mulline Goldfield, Menzies Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 29° 49' 16'' South , 120° 30' 55'' East
Latitude & Longitude (decimal): -29.82132,120.51540
GeoHash:G#: qdtwq7hwh
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate


The Peach Tree was a late starter on the goldfield, discovered and initially developed by J. Crabtree and S. Bomm from 1907. They sold the lease for 250 pounds to Elliot and Saunders. For some reason, even though they were milling 30 dwt ore, profits barely covered expenses, and they ceased working the mine late 1912.

A. Thomas successfully applied for forfeiture of the lease early 1913. He took in a mining partner, Peter Brand, who sold his interest shortly after for 10 pounds to D. Thomas, brother to A. Thomas. D. Thomas had been active at Metzke's Find. Active mining was found by the Thomas' until the end of 1914.

The shoot was 100 feet long, 6 to 18 inches wide in diorite. This may refer to the central bar described by modern exploration.

Across 1993 to 1994, Pancontinental Mining developed a shallow pit, mining lateritic gold and Fe enriched ore. The site has now been rehabilitated. It is approximately 2 kilometres south of the Evanston-Mulline and Davyhurst-Mulline road junction, and just west of the latter road. The Mulline cemetery is between the mine and the road.

Peach Tree is a small lateritic regolith gold deposit, with no known primary mineralisation underneath, and is thought to be transported gold from elsewhere on the goldfield. Gold is hosted by lateritic gravels and duricrust which contain soil based carbonates in the upper 2 metres. The gold enrichment follows an east-west trend, with well defined south and west boundaries. To the south is saprolite and west fresh rock. Before mining the lateritic material formed a low mound.

Within this deposit was a massive bar of strongly induriated carbonate, striking east-west along the axis of the deposit. Gold values decreased the further from this bar. The regolith contained clays, loams (orange rich brown to red), Fe oxide enrichment, calcrete pisoliths and nodules. Gold enrichment in these deposits is the result of warm humid conditions during the Tertiary period, followed by the present arid period, and the influence of acid and saline groundwaters.


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


15 valid minerals.

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: 912119
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]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3187518
Archean volcanic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Yilgarn Craton

Lithology: Greenstone belt; mafic-ultramafic volcanic 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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kalgoorlie Miner newspaper (1913), Mining at Mulline, 09/07/1913
Lintern, M.J., Butt, C.R.M. (1998), The Distribution of Gold and Other Elements in Soils at Mulline Western Australia, CRC LEME, Nov 1998

 
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