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Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa
The Du Toitspan kimberlite pipe located on the outskirts of Kimberley South Africa, is one four Cretaceous aged major kimberlite pipes from the well-known Kimberley cluster, the type locality for archetypal group I kimberlites. Twenty-seven samples representative of various kimberlite intrusions fro...
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| Format: | Thesis |
| Language: | English |
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University of Cape Town
2021
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| _version_ | 1867613226321051648 |
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| access_status_str | Open Access |
| author | Ramokgaba, Lesego |
| author2 | Le Roex, Anton P |
| author_browse | Le Roex, Anton P Ramokgaba, Lesego |
| author_facet | Le Roex, Anton P Ramokgaba, Lesego |
| author_sort | Ramokgaba, Lesego |
| collection | Thesis |
| description | The Du Toitspan kimberlite pipe located on the outskirts of Kimberley South Africa, is one four Cretaceous aged major kimberlite pipes from the well-known Kimberley cluster, the type locality for archetypal group I kimberlites. Twenty-seven samples representative of various kimberlite intrusions from the eastern lobe of the Du Toitspan kimberlite pipe have been analysed for their whole-rock geochemistry and mineral chemistry (olivine and phlogopite) with the aim of developing semi-quantitative models that constrain their petrogenesis and characterise their respective source region(s). Investigated intrusions include; D13-phlogopite kimberlite, D14-monticellite kimberlite, D17-serpentinized phlogopite kimberlite, and several narrow (<1m) calcite kimberlite dykes ranging in texture from aphanitic to macrocrystic. The aphanitic calcite dykes were further sub-divided into; a phlogopite-rich calcite kimberlite, a perovskite-rich calcite kimberlite, opaque-rich calcite kimberlites and serpentine calcit e kimberlites. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/32534 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:46.693Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Cape Town |
| publisherStr | University of Cape Town |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/32534 Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa Ramokgaba, Lesego Le Roex, Anton P Robey, Jock V A Geochemistry The Du Toitspan kimberlite pipe located on the outskirts of Kimberley South Africa, is one four Cretaceous aged major kimberlite pipes from the well-known Kimberley cluster, the type locality for archetypal group I kimberlites. Twenty-seven samples representative of various kimberlite intrusions from the eastern lobe of the Du Toitspan kimberlite pipe have been analysed for their whole-rock geochemistry and mineral chemistry (olivine and phlogopite) with the aim of developing semi-quantitative models that constrain their petrogenesis and characterise their respective source region(s). Investigated intrusions include; D13-phlogopite kimberlite, D14-monticellite kimberlite, D17-serpentinized phlogopite kimberlite, and several narrow (<1m) calcite kimberlite dykes ranging in texture from aphanitic to macrocrystic. The aphanitic calcite dykes were further sub-divided into; a phlogopite-rich calcite kimberlite, a perovskite-rich calcite kimberlite, opaque-rich calcite kimberlites and serpentine calcit e kimberlites. 2021-01-15T09:53:12Z 2021-01-15T09:53:12Z 2020 Master Thesis Masters MSc http://hdl.handle.net/11427/32534 eng application/pdf University of Cape Town Department of Geological Sciences Faculty of Science |
| spellingShingle | Geochemistry Ramokgaba, Lesego Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| thesis_degree_str | Master's |
| title | Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| title_full | Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| title_fullStr | Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| title_full_unstemmed | Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| title_short | Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa |
| title_sort | geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the du toitspan kimberlite pipe south africa |
| topic | Geochemistry |
| url | http://hdl.handle.net/11427/32534 |
| work_keys_str_mv | AT ramokgabalesego geochemistryandpetrogenesisofkimberliteintrusionsfromtheeasternlobethedutoitspankimberlitepipesouthafrica |