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Brockman 2 Mine, Mount Brockman, Ashburton Shire, Western Australia, Australiai
Regional Level Types
Brockman 2 MineMine
Mount BrockmanMountain
Ashburton ShireShire
Western AustraliaState

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Latitude & Longitude (WGS84): 22° 26' 29'' South , 117° 20' 56'' East
Latitude & Longitude (decimal): -22.44163,117.34909
GeoHash:G#: qs52q6eh0
Owned/operated by:Rio Tinto Group (100%)
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate

Brockman 2 is an iron ore mine, consisting of several pits immediately south of the Nammuldi iron ore mine, at the northern base of Mount Brockman. The mine is 55 kilometres north-west of Tom Price.

The mine started with the extraction of detrital ore from 1992 to 1998. After this Brockman bedded deposits were mined, capable of producing 8.7 Mtpa. Former P4, P4 Extension, Valley and Pit 6 were amalgamated into the B52 pit. To the west is Pit 1, 2 and 3, while to the north-east is the small pit 5, and south pit 7.

The ore is presently being obtained from the Dales Gorge Member banded iron formation. In 2011, Proven and Probable reserves were 35 Mt at 62.3% Fe. Measured, Indicated and Inferred resources were 20 Mt at 62.3% Fe, all as part of the Brockman Iron Formation. As detrital ore, the Indicated and Inferred resource is 26 Mt at 60.2% Fe.

Regions containing this locality

Australian Plate (Australia Plate)Tectonic Plate
West Australian Element, Western Australia, AustraliaCraton
Warakurna Large Igneous Province, Western Australia, AustraliaGeologic Province
Pilbara Craton, Western Australia, AustraliaCraton
Fortescue Basin, Western Australia, AustraliaBasin
Hamersley Basin, Western Australia, AustraliaBasin

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

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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

2500 - 2800 Ma

ID: 820233
Mount McRae Shale and Mount Sylvia Formation

Age: Neoarchean (2500 - 2800 Ma)

Stratigraphic Name: Mount McRae Shale; Mount Sylvia Formation

Description: Interbedded shale, chert, banded iron-formation

Comments: argillaceous detrital sediment; sedimentary non-carbonate chemical or biochemical; synthesis of multiple published descriptions

Lithology: Argillaceous detrital sediment; sedimentary non-carbonate chemical or biochemical

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]

2500 - 2800 Ma

ID: 3191932
Archean sedimentary and volcanic rocks

Age: Neoarchean (2500 - 2800 Ma)

Stratigraphic Name: Fortescue Group

Comments: Hamersley Basin

Lithology: Mafic volcanic rocks; conglomerate,carbonate,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


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Rio Tinto (2000), Nammuldi-Silvergrass Iron Ore Project. 55 Km Northwest of Tom Price, Hamersley Iron Pty Ltd, Environmental Protection Authority, State Government of Western Australia, October 2000.
Rio Tinto (2011), Brockman 2 Detrital Iron Ore Mine Extension Phase 2B, Hamersley Iron Pty Ltd, Environmental Protection Authority, State Government of Western Australia, April 2011.

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