Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa

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dc.contributor.advisorLe Roex, Antonen_ZA
dc.contributor.advisorGurney, John Jen_ZA
dc.contributor.authorCoe, Nancyen_ZA
dc.date.accessioned2014-07-30T17:25:27Z
dc.date.available2014-07-30T17:25:27Z
dc.date.issued2004en_ZA
dc.descriptionBibliography: leaves 139-146.
dc.description.abstractThe Swartruggens (156 Ma) and Star (128 Ma) kimberlites are two Group II, diamondiferous, hypabyssal kimerlite dyke swarms, situated in the Northern Province and the Free State respectively, South Africa. Representative samples from all dykes exposed in the mining operations, the Main and Changhouse Dykes, South Fissure and the barren Muil Dyke at Swartruggens, and the Wynandsfontein, East Star, Clewer, Byrnes and Barren dykes at Star, have been analysed for their major and trace element contents and Sr, Nd and Hf isotope compositions. Primary kimberlite magma chemistry is subjected to considerable modification due to the incorporation of both mantle and crustal material during ascent to the surface, crystal fractionation, and post-emplacement alteration by deuteric fluids. This study aims to constrain the effects of these processes, and thus to identify least-modified, close-to-primary, parental magma compositions, with the view to understanding the source region characteristics of, and the petrogenetic processes giving rise to, these kimberlites.en_ZA
dc.identifier.apacitationCoe, N. (2004). <i>Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Geological Sciences. Retrieved from http://hdl.handle.net/11427/4191en_ZA
dc.identifier.chicagocitationCoe, Nancy. <i>"Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2004. http://hdl.handle.net/11427/4191en_ZA
dc.identifier.citationCoe, N. 2004. Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Coe, Nancy AB - The Swartruggens (156 Ma) and Star (128 Ma) kimberlites are two Group II, diamondiferous, hypabyssal kimerlite dyke swarms, situated in the Northern Province and the Free State respectively, South Africa. Representative samples from all dykes exposed in the mining operations, the Main and Changhouse Dykes, South Fissure and the barren Muil Dyke at Swartruggens, and the Wynandsfontein, East Star, Clewer, Byrnes and Barren dykes at Star, have been analysed for their major and trace element contents and Sr, Nd and Hf isotope compositions. Primary kimberlite magma chemistry is subjected to considerable modification due to the incorporation of both mantle and crustal material during ascent to the surface, crystal fractionation, and post-emplacement alteration by deuteric fluids. This study aims to constrain the effects of these processes, and thus to identify least-modified, close-to-primary, parental magma compositions, with the view to understanding the source region characteristics of, and the petrogenetic processes giving rise to, these kimberlites. DA - 2004 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2004 T1 - Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa TI - Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa UR - http://hdl.handle.net/11427/4191 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/4191
dc.identifier.vancouvercitationCoe N. Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2004 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/4191en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Geological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherGeological Sciencesen_ZA
dc.titlePetrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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