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Aspects of uranium mineralization in the Beaufort West Karoo
Thesis (M. Sc.) -- University of Stellenbosch, 1977.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614002823036928 |
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| access_status_str | Open Access |
| author | Pretorius, Leon Eugene |
| author2 | Stellenbosch University. Faculty of Science. Dept. of Earth Sciences. |
| author_browse | Pretorius, Leon Eugene Stellenbosch University. Faculty of Science. Dept. of Earth Sciences. |
| author_facet | Stellenbosch University. Faculty of Science. Dept. of Earth Sciences. Pretorius, Leon Eugene |
| author_sort | Pretorius, Leon Eugene |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (M. Sc.) -- University of Stellenbosch, 1977. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/54420 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:45:06.534Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/54420 Aspects of uranium mineralization in the Beaufort West Karoo Pretorius, Leon Eugene Stellenbosch University. Faculty of Science. Dept. of Earth Sciences. Uranium ores -- Cape of Good Hope -- Beaufort West Dissertations -- Geology Thesis (M. Sc.) -- University of Stellenbosch, 1977. The distribution and controlling factors of uranium mineralization in the sedimentary rocks of the Lower Beaufort Group have been investigated in the Beaufort West area between 22°0' and 24 °O'E longitude and 32°0' and 32°45'S latitude. The mineralization is classified as 'primary' or 'secondary', depending on the time of emplacement and not on the oxidation state of the uranium minerals present. Petrographic and geochemical aspects of primary uranium deposition point to a syngenetic origin. Reconstruction of the paleo-depositional environment suggests that the primary mineralization is restricted to paleo-pools or -meander cut-offs where stagnant reducing conditions existed. From geological mapping done to the south of Beaufort West it appears that this uranium mineralization is located in an 'intermediate' paleo-depositional zone between the true fluvial and delta front environments. The indications of secondary uranium distribution and epigenetic concentration in 'rolls' within the area were studied along with various other aspects of such mineralization. The permeability of the arenaceous rocks in the area seems to be too low to host large uranium deposits of this kind. Detail geochemical soil sampling suggests that Zn, P, Co and As could be used as pathfinder elements for uranium. Although regional anomalies were investigated no meaningful pattern could be developed. AFRIKAANSE OPSOMMING: Tydens die uitvoering van 'n regionale dreinasie-monsteringsprojek in die gebied om Beaufort-Wes gelee tussen 22⁰ 0' en 24⁰ 0' oosterlengte en 32°0' en 32°45' suiderbreedte is alle aspekte van die uraanvoorkomste in die gebied bestudeer. Die uraan-mineralisasie omvat twee tipes, naamlik: primer en sekonder, wat verband hou met die relatiewe tyd van afsetting en nie met die oksidasietoestand van die minerals nie. Petrologiese en geochemiese getuienis dui op 'n singenetiese oorsprong van die primere verertsing. Die konsentrering van uraan het plaasgevind in lokale panne of hoefystermere waar stagnante toestande geheers het. Die moontlike sekondere herkonsentrering van uraan is in al sy aspekte ondersoek. Dit blyk dat die deurlatendheid van die sedimentere gesteentes in die gebied te laag is vir beduidende verertsing. Regionals kartering suid van Beaufort-Wes het gelei tot 'n drievoudige onderverdeling van die paleo-afsettingsomgewing. Die primere uraan-mineralisasie is beperk tot hoofsaaklik die 'intermediere' sane tussen die fluviale en delta-voorkant afsettingsomgewings. Detail geochemiese monstering bewys dat Zn, P, Co en As gebruik kan word as aanwyserelemente vir uraan. Alhoewel regionals anomalies ondersoek is, is geen betekenisvolle patroon gevind nie. Masters 2012-08-27T11:36:32Z 2012-08-27T11:36:32Z 1977 Thesis http://hdl.handle.net/10019.1/54420 en_ZA Stellenbosch University 129 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Uranium ores -- Cape of Good Hope -- Beaufort West Dissertations -- Geology Pretorius, Leon Eugene Aspects of uranium mineralization in the Beaufort West Karoo |
| title | Aspects of uranium mineralization in the Beaufort West Karoo |
| title_full | Aspects of uranium mineralization in the Beaufort West Karoo |
| title_fullStr | Aspects of uranium mineralization in the Beaufort West Karoo |
| title_full_unstemmed | Aspects of uranium mineralization in the Beaufort West Karoo |
| title_short | Aspects of uranium mineralization in the Beaufort West Karoo |
| title_sort | aspects of uranium mineralization in the beaufort west karoo |
| topic | Uranium ores -- Cape of Good Hope -- Beaufort West Dissertations -- Geology |
| url | http://hdl.handle.net/10019.1/54420 |
| work_keys_str_mv | AT pretoriusleoneugene aspectsofuraniummineralizationinthebeaufortwestkaroo |