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A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa
Bibliography: leaves 112-120.
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
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Department of Geological Sciences
2014
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| _version_ | 1867613282990292992 |
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| access_status_str | Open Access |
| author | La Grange, Mandy |
| author_browse | La Grange, Mandy |
| author_facet | La Grange, Mandy |
| author_sort | La Grange, Mandy |
| collection | Thesis |
| description | Bibliography: leaves 112-120. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/4206 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:40.116Z |
| 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:11427/4206 A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa La Grange, Mandy Geological Sciences Bibliography: leaves 112-120. Metamorphism observed in the Vredefort structure increases in grade on a regional scale from lower greenschist facies in the outer perimeter of the Potchefstroom syncline, throughupper greenschist and amphibolite grades within rocks of the Witwatersrand Supergroupand Dominion Group in the collar of the Vredefort dome, to granulite grades in the core ofthe dome. In the collar, two metamorphic assemblages have been identified, one representing a peak metamorphic event pre-impact in age and constrained to temperatures >420-620°C at 3.0-4.0 kbar, and a younger retrograde event, constrained to 500-540 ± 15°C, which overprints the latter assemblage and overgrows pseudotachylite in a small number of samples. 2014-07-30T17:26:28Z 2014-07-30T17:26:28Z 2004 Master Thesis Masters MSc http://hdl.handle.net/11427/4206 eng application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geological Sciences La Grange, Mandy A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| thesis_degree_str | Master's |
| title | A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| title_full | A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| title_fullStr | A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| title_full_unstemmed | A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| title_short | A detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex Gneisses from the Vredefort dome, South Africa |
| title_sort | detailed petrographic and oxygen isotope study of metamorphic rocks and archean basement complex gneisses from the vredefort dome south africa |
| topic | Geological Sciences |
| url | http://hdl.handle.net/11427/4206 |
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