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The Monazite deposits of the Vanrhynsdorp division, Cape Province
Dissertation (MSc)--University of Pretoria, 1959.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2022
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| _version_ | 1867613480037646336 |
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| access_status_str | Open Access |
| author2 | Willemse, J. |
| author_browse | Willemse, J. |
| author_facet | Willemse, J. |
| collection | Thesis |
| dc_rights_str_mv | © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 1959. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/85380 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:36:48.836Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/85380 The Monazite deposits of the Vanrhynsdorp division, Cape Province Willemse, J. Pike, Derek Royden UCTD Monazite deposits Vanrhynsdorp division Cape Province Dissertation (MSc)--University of Pretoria, 1959. Monazite occurs with apatite, zircon, iron and copper minerals in hydrothermal lodes in the Archaean Complex. The mineralisation appears to be related to structural features and hydrothermal alteration of a porphyroblastic granite-gneiss. There are three primary and two placer occurrences. The rare phenomenon the basal pinacoid, their properties. Except for monazite, which exhibits of polysynthetic twinning parallel to the ore-minerals are normal in all Geographically, the occurrences are near the southern extremities of the Kamiesberge where they disappear beneath the Knersvlakte peneplane, leaving an inselberg topography controlled by the semi-arid climate. Geologically the area is one in which the Archaean basement has been exposed through the removal of overlying Nama and younger sedimentary formations, some of which remain as outliers. The Archaean rocks, because they present certain features which are inconsistent with the intrusion of primary granites into metamorphic rocks, are believed to have formed by regional granitisation of the Malmesbury Formation. The truncation of one ore-body by the pre-Nama erosion surface indicates a pre-Nama age for the mineralisation, and placer deposits of monazite and zircon have been located in the Nama sediments. Controls have been established to guide the search for further primary occurrences of radioactive minerals, and suggestions are made accordingly for the continued survey of the area. Geology MSc Unrestricted 2022-05-17T11:20:38Z 2022-05-17T11:20:38Z 2021/09/28 1959 Dissertation * https://repository.up.ac.za/handle/2263/85380 en © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Monazite deposits Vanrhynsdorp division Cape Province The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title | The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title_full | The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title_fullStr | The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title_full_unstemmed | The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title_short | The Monazite deposits of the Vanrhynsdorp division, Cape Province |
| title_sort | monazite deposits of the vanrhynsdorp division cape province |
| topic | UCTD Monazite deposits Vanrhynsdorp division Cape Province |
| url | https://repository.up.ac.za/handle/2263/85380 |