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Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia
Includes bibliographical references (leaves 185-193).
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Geological Sciences
2014
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| _version_ | 1867614162701516800 |
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| access_status_str | Open Access |
| author | Oelofsen, André |
| author2 | Compton, John |
| author_browse | Compton, John Oelofsen, André |
| author_facet | Compton, John Oelofsen, André |
| author_sort | Oelofsen, André |
| collection | Thesis |
| description | Includes bibliographical references (leaves 185-193). |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/4215 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:47:39.925Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Geological Sciences |
| publisherStr | Department of Geological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/4215 Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia Oelofsen, André Compton, John Geological Sciences Includes bibliographical references (leaves 185-193). Small scale diver-assisted diamond mining has taken place since 1990 in the shallow marin (<30 m water depth) portions of Mining Licence 45 (Elizabeth Bay) between Halifax Island and Elizabeth Bay along the southwestern coast of Namibia. These operations in the northern part off the coast of the Sperrgebiet have produced almost 400,000 carats over a period of 17 years. Although sparse records remain from the early days, sufficient data from various sources were collected, collated and summarised to make meaningful observations. From historic and current diamond diving records, 4 submarine areas which have yielded high returns were described in terms of their geomorphology, sedimentology and diamond occurrence. Using detailed geophysical survey data (Sidescan Sonar and Multi-beam Bathymetry), the deposition of diamonds at these sites were modelled in GIS-based reconstructions. The diamond size frequency distribution (SFO) of the Shallow Marine (0 to -30 m) deposits in the study area is similar to the proximal aeolian deposit mined on land at Elizabeth Bay and the deeper Midwater (-30 to -70 m depth) deposits situated southwest of the study area. 2014-07-30T17:27:32Z 2014-07-30T17:27:32Z 2008 Master Thesis Masters MSc http://hdl.handle.net/11427/4215 eng application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geological Sciences Oelofsen, André Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| thesis_degree_str | Master's |
| title | Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| title_full | Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| title_fullStr | Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| title_full_unstemmed | Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| title_short | Late cenozoic shallow marine diamond placers off the northern Sperrgebiet, Namibia |
| title_sort | late cenozoic shallow marine diamond placers off the northern sperrgebiet namibia |
| topic | Geological Sciences |
| url | http://hdl.handle.net/11427/4215 |
| work_keys_str_mv | AT oelofsenandre latecenozoicshallowmarinediamondplacersoffthenorthernsperrgebietnamibia |