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The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east
Basaltic rocks dredged from the Southwest Indian Ridge (SWIR) between 16 and 26°E were investigated by petrographic microscope, electron microprobe and X-ray fluorescence analysis. Basalts are olivine tholeiites with geochemical characteristics similar to normal, depleted mid-ocean ridge basalts (MO...
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| Format: | Thesis |
| Language: | English English |
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Department of Geological Sciences
2026
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| _version_ | 1867613276718759936 |
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| access_status_str | Open Access |
| author | Hamilton, Christopher Charles |
| author2 | Le Roex, Anton |
| author_browse | Hamilton, Christopher Charles Le Roex, Anton |
| author_facet | Le Roex, Anton Hamilton, Christopher Charles |
| author_sort | Hamilton, Christopher Charles |
| collection | Thesis |
| description | Basaltic rocks dredged from the Southwest Indian Ridge (SWIR) between 16 and 26°E were investigated by petrographic microscope, electron microprobe and X-ray fluorescence analysis. Basalts are olivine tholeiites with geochemical characteristics similar to normal, depleted mid-ocean ridge basalts (MORB) from the SWIR between 0 and 11° East (le Roex et al., 1983). The suite consists predominantly of aphyric or microporphyritic olivine- and olivine-plagioclase basalts. Several porphyritic lavas are also present. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/43081 |
| institution | University of Cape Town (South Africa) |
| language | English eng |
| last_indexed | 2026-06-10T12:33:33.643Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| 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:11427/43081 The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east Hamilton, Christopher Charles Le Roex, Anton Geology Basaltic rocks dredged from the Southwest Indian Ridge (SWIR) between 16 and 26°E were investigated by petrographic microscope, electron microprobe and X-ray fluorescence analysis. Basalts are olivine tholeiites with geochemical characteristics similar to normal, depleted mid-ocean ridge basalts (MORB) from the SWIR between 0 and 11° East (le Roex et al., 1983). The suite consists predominantly of aphyric or microporphyritic olivine- and olivine-plagioclase basalts. Several porphyritic lavas are also present. 2026-04-07T13:48:50Z 2026-04-07T13:48:50Z 1988 2024-08-19T12:04:34Z Thesis / Dissertation Masters Masters http://hdl.handle.net/11427/43081 en eng application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geology Hamilton, Christopher Charles The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| thesis_degree_str | Master's |
| title | The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| title_full | The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| title_fullStr | The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| title_full_unstemmed | The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| title_short | The petrography, phase chemistry and petrology of South-West Indian Ridge basalts dredged beween 16 and 26 degrees east |
| title_sort | petrography phase chemistry and petrology of south west indian ridge basalts dredged beween 16 and 26 degrees east |
| topic | Geology |
| url | http://hdl.handle.net/11427/43081 |
| work_keys_str_mv | AT hamiltonchristophercharles thepetrographyphasechemistryandpetrologyofsouthwestindianridgebasaltsdredgedbeween16and26degreeseast AT hamiltonchristophercharles petrographyphasechemistryandpetrologyofsouthwestindianridgebasaltsdredgedbeween16and26degreeseast |