A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa

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dc.contributor.advisorFagereng, Akeen_ZA
dc.contributor.advisorHarris, Chrisen_ZA
dc.contributor.authorHamel, Kaylanen_ZA
dc.date.accessioned2016-07-25T07:10:33Z
dc.date.available2016-07-25T07:10:33Z
dc.date.issued2016en_ZA
dc.description.abstractThe Colenso Fault Zone marks the boundary between the Tygerberg and Swartland Terranes in the Pan-African Saldania Orogenic Belt. The fault zone comprises several discrete shear discontinuities that in places cross-cut relatively undeformed granites of the Cape Granite Suite. It is NW-SE striking, ~150 km long, and ~7km wide, but poorly exposed except in coastal exposures at the NW end. The deformation sequence can be divided into 2 sequences: The oldest deformation started with the emplacement of the G1, G2 and then the G3 of the Cape Granite Suite, followed by formation of aplite veins and strike-slip faulting generating cataclasites. The initial strike-slip sense of movement along the fault was sinistral, followed by dextral strike-slip shearing and finally late stage jointing. The Colenso Fault Zone is host to 3 large zones of cataclasis that are in the order of up to a few hundred metres in exposed down-dip and along-strike lengths. The cataclasites are composed of quartz and plagioclase clasts, in a phyllosilicate matrix. Both the wide cataclasites (several metres) and small cataclasite zones (tens of centimeters) show a decrease in shear intensity away from the core of the fault zone. The cataclasites have the same bulk chemical composition as the surrounding granite.en_ZA
dc.identifier.apacitationHamel, K. (2016). <i>A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Geological Sciences. Retrieved from http://hdl.handle.net/11427/20644en_ZA
dc.identifier.chicagocitationHamel, Kaylan. <i>"A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2016. http://hdl.handle.net/11427/20644en_ZA
dc.identifier.citationHamel, K. 2016. A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Hamel, Kaylan AB - The Colenso Fault Zone marks the boundary between the Tygerberg and Swartland Terranes in the Pan-African Saldania Orogenic Belt. The fault zone comprises several discrete shear discontinuities that in places cross-cut relatively undeformed granites of the Cape Granite Suite. It is NW-SE striking, ~150 km long, and ~7km wide, but poorly exposed except in coastal exposures at the NW end. The deformation sequence can be divided into 2 sequences: The oldest deformation started with the emplacement of the G1, G2 and then the G3 of the Cape Granite Suite, followed by formation of aplite veins and strike-slip faulting generating cataclasites. The initial strike-slip sense of movement along the fault was sinistral, followed by dextral strike-slip shearing and finally late stage jointing. The Colenso Fault Zone is host to 3 large zones of cataclasis that are in the order of up to a few hundred metres in exposed down-dip and along-strike lengths. The cataclasites are composed of quartz and plagioclase clasts, in a phyllosilicate matrix. Both the wide cataclasites (several metres) and small cataclasite zones (tens of centimeters) show a decrease in shear intensity away from the core of the fault zone. The cataclasites have the same bulk chemical composition as the surrounding granite. DA - 2016 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa TI - A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa UR - http://hdl.handle.net/11427/20644 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20644
dc.identifier.vancouvercitationHamel K. A structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/20644en_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.titleA structural and geochemical traverse across the NW outcrop of the Colenso Fault Zone, Saldanha, 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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