|Latitude & Longitude (WGS84):||21° 29' 20'' South , 119° 57' 9'' East|
|Latitude & Longitude (decimal):||-21.48876,119.95239|
|Köppen climate type:||BWh : Hot deserts climate|
Located 30 kilometres south-east of Marble Bar.
Discovered in 1998, the dyke strikes for 20 kilometres and is between 1 to 12 metres wide. Thought to be a diamondiferous kimberlite fissure, containing both macro and micro diamonds, spinel and garnet. The deposit is uneconomic at 1 ct/ht.
The first diamond discovery in Western Australia was made in 1895, when a few small stones were found in alluvial gold workings. Some have suggested the Brockman Dyke is the long searched for source of these diamonds. Since 1895 several hundred small diamonds have been found in alluvial gravels in the region.
2 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
|Mesoarchean - Paleoarchean|
2800 - 3600 Ma
|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. 
3200 - 3600 Ma
|Emu Pool Supersuite|
Age: Paleoarchean (3200 - 3600 Ma)
Stratigraphic Name: Emu Pool Supersuite
Comments: igneous felsic intrusive; igneous intermediate intrusive; synthesis of multiple published descriptions
Lithology: Igneous felsic intrusive; igneous intermediate intrusive
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).