Volcanic rocks of the Witwatersrand Triad, South Africa. II: petrogenesis of mafic and felsic rocks of the Dominion Group
- Marsh, Julian S, Bowen, M P, Rogers, N W, Bowen, T B
- Authors: Marsh, Julian S , Bowen, M P , Rogers, N W , Bowen, T B
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140443 , vital:37889 , https://doi.org/10.1016/0301-9268(89)90075-2
- Description: A bimodal suite of volcanic rocks builds the bulk of the Dominion Group which, with an age of ∼ 2.72 Ga, is the oldest cover sequence overlying the granite-greenstone Archaean basement of the Kaapvaal craton in the western Transvaal, South Africa. The basic lavas are relatively rich in SiO2 (50–58%) and aphyric and exhibit a large compositional range. This variation is typically tholeiitic in that it is characterized by strong enrichment of Ti, Fe, and V in differentiated lavas.
- Full Text: false
- Date Issued: 2003
- Authors: Marsh, Julian S , Bowen, M P , Rogers, N W , Bowen, T B
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140443 , vital:37889 , https://doi.org/10.1016/0301-9268(89)90075-2
- Description: A bimodal suite of volcanic rocks builds the bulk of the Dominion Group which, with an age of ∼ 2.72 Ga, is the oldest cover sequence overlying the granite-greenstone Archaean basement of the Kaapvaal craton in the western Transvaal, South Africa. The basic lavas are relatively rich in SiO2 (50–58%) and aphyric and exhibit a large compositional range. This variation is typically tholeiitic in that it is characterized by strong enrichment of Ti, Fe, and V in differentiated lavas.
- Full Text: false
- Date Issued: 2003
Petrogenesis of late Archaean flood-type basic lavas from the Klipriviersberg Group, Ventersdorp Supergroup, South Africa
- Marsh, Julian S, Bowen, M P, Rogers, N W, Bowen, T B
- Authors: Marsh, Julian S , Bowen, M P , Rogers, N W , Bowen, T B
- Date: 1992
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145829 , vital:38470 , https://doi.org/10.1093/petrology/33.4.817
- Description: The Klipriviersberg Group is a small continental flood-type tholeiitic suite forming the basal unit of the Ventersdorp Supergroup, an undeformed late-Archaean supracrustal sequence covering 200000 km2 in the SW part of the Kaapvaal Craton. From the base up, the Klipriviersberg Group consists of the Westonaria, Alberton, Orkney, Jeannette, Loraine, and Edenville formations, with a maximum combined thickness of 1–8 km. Samples were obtained from several borehole cores in the Klerksdorp goldfield close to the type area of the Klipriviersberg Group.
- Full Text: false
- Date Issued: 1992
- Authors: Marsh, Julian S , Bowen, M P , Rogers, N W , Bowen, T B
- Date: 1992
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145829 , vital:38470 , https://doi.org/10.1093/petrology/33.4.817
- Description: The Klipriviersberg Group is a small continental flood-type tholeiitic suite forming the basal unit of the Ventersdorp Supergroup, an undeformed late-Archaean supracrustal sequence covering 200000 km2 in the SW part of the Kaapvaal Craton. From the base up, the Klipriviersberg Group consists of the Westonaria, Alberton, Orkney, Jeannette, Loraine, and Edenville formations, with a maximum combined thickness of 1–8 km. Samples were obtained from several borehole cores in the Klerksdorp goldfield close to the type area of the Klipriviersberg Group.
- Full Text: false
- Date Issued: 1992
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