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Holpan, Barkly West, Francis Baard District, Northern Cape, South Africai
Regional Level Types
Holpan- not defined -
Barkly West- not defined -
Francis Baard DistrictDistrict
Northern CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84): 28° 21' 43'' South , 24° 38' 3'' East
Latitude & Longitude (decimal): -28.36194,24.63417
GeoHash:G#: kdcw8sf59
Köppen climate type:BSh : Hot semi-arid (steppe) climate


Diamond diggings on the banks of the Vaal River.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

Diamond
Formula: C
Reference: Matheys, F. G., (1990), The alluvial diamond deposits of the lower Vaal river between Barkly West and the Vaal-Harts confluence in the Northern Cape Province, South Africa.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Diamond'1.CB.10aC

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C

List of minerals for each chemical element

CCarbon
C DiamondC

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

Paleoproterozoic - Archean
1600 - 4000 Ma



ID: 3192219
Archean-Paleoproterozoic volcanic rocks

Age: Precambrian (1600 - 4000 Ma)

Comments: Kapvaal Craton

Lithology: Felsic 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]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 2233940
Allanridge Formation of Ventersdorp Supergroup

Age: Archean (2500 - 3200 Ma)

Stratigraphic Name: Allanridge Formation

Description: Andesitic lavas, tuffs

Reference: Council for Geoscience. Geologic map of South Africa, 1:1M. National Science Councils of South Africa. [41]

Neoarchean
2500 - 2800 Ma



ID: 3308076

Age: Neoarchean (2500 - 2800 Ma)

Lithology: Volcanic-sedimentary and plutonic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Matheys, F. G., (1990), The alluvial diamond deposits of the lower Vaal river between Barkly West and the Vaal-Harts confluence in the Northern Cape Province, South Africa.


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