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Karoo dolerites, Cradock, Chris Hani District, Eastern Cape, South Africai
Regional Level Types
Karoo dolerites- not defined -
Cradock- not defined -
Chris Hani DistrictDistrict
Eastern CapeProvince
South AfricaCountry

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Latitude & Longitude (WGS84): 32° 14' 52'' South , 25° 51' 40'' East
Latitude & Longitude (decimal): -32.24794,25.86113
GeoHash:G#: kd62s3rw0
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Cradock32,898 (2012)24.6km


No description has been added for this locality. Can you add one?

Regions containing this locality

African PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa: 186.
Prehnite (TL)
Formula: Ca2Al2Si3O10(OH)2
Type Locality:
Reference: Werner, A. G. (1788) in M H Klaprath, Schrift. Ges. naturforsch. Freunde, Berlin, 8, 211.

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Group 9 - Silicates
Prehnite (TL)9.DP.20Ca2Al2Si3O10(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite (TL)72.1.3.1Ca2Al2Si3O10(OH)2

List of minerals for each chemical element

HHydrogen
H PrehniteCa2Al2Si3O10(OH)2
H AzuriteCu3(CO3)2(OH)2
CCarbon
C AzuriteCu3(CO3)2(OH)2
OOxygen
O PrehniteCa2Al2Si3O10(OH)2
O AzuriteCu3(CO3)2(OH)2
AlAluminium
Al PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Si PrehniteCa2Al2Si3O10(OH)2
CaCalcium
Ca PrehniteCa2Al2Si3O10(OH)2
CuCopper
Cu AzuriteCu3(CO3)2(OH)2

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

Jurassic - Permian
145 - 298.9 Ma



ID: 3309804

Age: Phanerozoic (145 - 298.9 Ma)

Lithology: Sedimentary (karoo)

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

Permian
251.902 - 298.9 Ma



ID: 2228160
Adelaide Subgroup of Beaufort Group of Karoo Supergroup

Age: Phanerozoic (251.902 - 298.9 Ma)

Stratigraphic Name: Adelaide Subgroup

Description: Mudrock, subordinate sandstone

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

Permian
251.902 - 298.9 Ma



ID: 3189153
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 298.9 Ma)

Stratigraphic Name: Karoo Supergroup

Comments: Karoo Basin

Lithology: Sedimentary 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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa: 186.

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