Petrology, geochronology and provenance of the Laingsburg and Tanqua Karoo submarine fan systems, Ecca Group, South Africa

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dc.contributor.advisorRozendaal, Abraham en_ZA
dc.contributor.authorNguema Mve, Oliver Patriceen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Science. Dept. of Earth Sciences.
dc.date.accessioned2006-11-13T09:07:34Zen_ZA
dc.date.accessioned2010-06-01T08:38:56Z
dc.date.available2006-11-13T09:07:34Zen_ZA
dc.date.available2010-06-01T08:38:56Z
dc.date.issued2005-12en_ZA
dc.descriptionThesis (MSc (Earth Sciences))—University of Stellenbosch, 2005.
dc.description.abstractThe integration of whole-rock chemistry, heavy mineral chemistry, detrital zircon morphology and age dating has enabled high-resolution characterization of the Permian Laingsburg and Tanqua submarine fan provenance in the Karoo Basin, upper Ecca Group, South Africa. Geochemically, the Laingsburg and Tanqua sandstones are classified as greywacke and litharenite. The chemical index of alteration values for these sandstones suggest low to moderately weathered sources and a relatively cold climate. Abundant angular clastic grains and lithic fragments as well as the predominance of pristine zircons indicate a near provenance and a first cycle derivation. The investigated sandstones originated from a continental island arc and an active continental margin. The source is dominantly intermediate to felsic and includes tonalites, granodiorites, and adamellites or their volcanic equivalents.en_ZA
dc.format.extent6241460 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/2018
dc.language.isoen
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectGeochemistry -- South Africa -- Karooen
dc.subjectPetrology -- South Africa -- Karooen
dc.subjectSubmarine fans -- South Africa -- Karooen
dc.subjectEcca Groupen
dc.subjectDissertations -- Geologyen
dc.subjectTheses -- Geologyen
dc.titlePetrology, geochronology and provenance of the Laingsburg and Tanqua Karoo submarine fan systems, Ecca Group, South Africaen_ZA
dc.typeThesisen_ZA
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