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- W2099685834 abstract "Research Article| June 01, 2006 Provenance analysis of selected clastic rocks in Neoproterozoic to lower Paleozoic successions of southern Africa from the Gariep Belt and the Kango Inlier Anelda van Staden; Anelda van Staden Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006 Johannesburg, South Africa, Mineralogy Department, Anglo Research, P.O. Box 6540, Homestead, 2025; Johannesburg, South Africa e-mail: avanstaden@angloresearch.com Search for other works by this author on: GSW Google Scholar Thanusha Naidoo; Thanusha Naidoo Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Search for other works by this author on: GSW Google Scholar Udo Zimmermann; Udo Zimmermann Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Search for other works by this author on: GSW Google Scholar Gerard J.B. Germs Gerard J.B. Germs Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Search for other works by this author on: GSW Google Scholar Author and Article Information Anelda van Staden Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006 Johannesburg, South Africa, Mineralogy Department, Anglo Research, P.O. Box 6540, Homestead, 2025; Johannesburg, South Africa e-mail: avanstaden@angloresearch.com Thanusha Naidoo Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Udo Zimmermann Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Gerard J.B. Germs Department of Geology, University of Johannesburg, PO Box 524, Auckland Park 2006; Johannesburg, South Africa e-mail: thanusha@metroweb.co.za; uz@rau.na.ac.za; gagerms@global.co.za Publisher: Geological Society of South Africa First Online: 09 Mar 2017 Online ISSN: 1996-8590 Print ISSN: 1012-0750 © 2006 Geological Society of South Africa South African Journal of Geology (2006) 109 (1-2): 215–232. https://doi.org/10.2113/gssajg.109.1-2.215 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Anelda van Staden, Thanusha Naidoo, Udo Zimmermann, Gerard J.B. Germs; Provenance analysis of selected clastic rocks in Neoproterozoic to lower Paleozoic successions of southern Africa from the Gariep Belt and the Kango Inlier. South African Journal of Geology 2006;; 109 (1-2): 215–232. doi: https://doi.org/10.2113/gssajg.109.1-2.215 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySouth African Journal of Geology Search Advanced Search Abstract Conglomerates and associated finer-grained sedimentary rocks, from Neoproterozoic to Lower Paleozoic successions in southern Africa (Kaigas and Numees Formations of the Gariep Belt; Nooitgedagt Member and Vaartwell Formation from the Kango Inlier in the Saldania Belt), were selected for provenance determination. The studied supracrustal rocks are dominated by material derived from the upper continental crust, and display a moderate weathering trend, as derived from the chemical index of alteration, and upper crustal Th/U ratios. Samples characterized by an influence of less fractionated material may be derived from a volcanic arc or from an alkaline source. A volcanic arc component that has been identified in the Kaigas Formation (~770 Ma) detritus is interpreted as eroded from the underlying Meso- to Palaeoproterozoic Orange River Group and/or Vioolsdrift Suite. Alternatively it may represent an undiscovered, unknown arc terrane. Stronger fractionated material identified within samples is reworked and are thought to have formed in a passive margin setting. Detrital material, from a source with a continental arc signature, was observed in both the Nooitgedagt Member and the Vaartwell Formation of the Kango Inlier, but is difficult to substantiate. It has been shown that various local source areas supplied the detrital material to the studied successions. The heterogeneity and the lack of age constraints from the different sources inhibit the modelling of palaeogeographic settings until the entire basin evolution is understood. Correlation of sedimentary successions between isolated outcrops should thus be avoided or treated with greatest caution. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2099685834 title "Provenance analysis of selected clastic rocks in Neoproterozoic to lower Paleozoic successions of southern Africa from the Gariep Belt and the Kango Inlier" @default.
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