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Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand
Bibliography: leaves 105-121.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Environmental and Geographical Science
2015
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| _version_ | 1867613230538424320 |
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| access_status_str | Open Access |
| author | Mabote, Molefi Elliot |
| author2 | Meadows, Michael E |
| author_browse | Mabote, Molefi Elliot Meadows, Michael E |
| author_facet | Meadows, Michael E Mabote, Molefi Elliot |
| author_sort | Mabote, Molefi Elliot |
| collection | Thesis |
| description | Bibliography: leaves 105-121. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13887 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:50.328Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Environmental and Geographical Science |
| publisherStr | Department of Environmental and Geographical Science |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/13887 Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand Mabote, Molefi Elliot Meadows, Michael E Rogers , J Environmental and Geographical Science Bibliography: leaves 105-121. This thesis is comprised of sedimentological and geochemical studies of seven 7m core sediments retrieved from the Namaqualand Mudbelt, South Africa. The purpose of this research is to contribute to the evidence for environmental change during the late Quaternary in the southern Africa from the analyses of continental shelf sediments and more specifically, to examine feasibility of using Namaqualand mudbelts as a key to understanding late environmental dynamics of both terrestrial and marine environment. Namaqualand mudbelts seem to have been deposited during the last 10 000 years. Chrono- and lithostratigraphy, coarse-fraction and geochemical analyses suggest the following sedimentary development on the Namaqualand offshore. An early period of deposition dominated by marine conditions off the coast, but with significant input in the north (Orange Delta) and south (off KIeinsee). There is a fining upcore sequence from the Orange Prodelta southward to the inner shelf (off Kleinsee). This fining-upward sequence is generally indicative of shoreward transgression of the sea (rising sea-level). As sea-level rises (shoreward transgression), finer-grained deeper water deposits migrate landward and are deposited over shallower water deposits. While the Orange River might be a major source of sediments on the Orange River Delta, marine contribution is increasingly important far south of the Orange Delta (off KIeinsee). ln addition, berg winds and local ephemeral Namaqualand rivers are also increasingly important. 2015-09-14T18:04:39Z 2015-09-14T18:04:39Z 1997 Master Thesis Masters MSc http://hdl.handle.net/11427/13887 eng application/pdf Department of Environmental and Geographical Science Faculty of Science University of Cape Town |
| spellingShingle | Environmental and Geographical Science Mabote, Molefi Elliot Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| thesis_degree_str | Master's |
| title | Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| title_full | Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| title_fullStr | Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| title_full_unstemmed | Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| title_short | Sedimentological and geochemical evidence for late quaternary environmental changes in southern Africa : a case study of the mudbelt deposits off Namaqualand |
| title_sort | sedimentological and geochemical evidence for late quaternary environmental changes in southern africa a case study of the mudbelt deposits off namaqualand |
| topic | Environmental and Geographical Science |
| url | http://hdl.handle.net/11427/13887 |
| work_keys_str_mv | AT mabotemolefielliot sedimentologicalandgeochemicalevidenceforlatequaternaryenvironmentalchangesinsouthernafricaacasestudyofthemudbeltdepositsoffnamaqualand |