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Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks
Metabasic rocks constitute a significant proportion of the rock types found within orogenic metamorphic terranes, and the high temperature (T), suprasolidus behaviour of these lithologies provide an important contribution to the process of internal differentiation in the continental crust. The recen...
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| Format: | Thesis |
| Language: | English |
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Department of Geological Sciences
2017
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| _version_ | 1867611276744589312 |
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| access_status_str | Open Access |
| author | Stuck, Tristan James |
| author2 | Diener, Johann F A |
| author_browse | Diener, Johann F A Stuck, Tristan James |
| author_facet | Diener, Johann F A Stuck, Tristan James |
| author_sort | Stuck, Tristan James |
| collection | Thesis |
| description | Metabasic rocks constitute a significant proportion of the rock types found within orogenic metamorphic terranes, and the high temperature (T), suprasolidus behaviour of these lithologies provide an important contribution to the process of internal differentiation in the continental crust. The recent development of thermodynamic activity-composition (a-x) relations for high T mineral and melt phases allows the processes of melt generation and segregation to be quantified using high-resolution mineral equilibria modelling for the first time. In this work, calculated Pressure-Temperature (P-T) and Temperature-Mol. % SiO₂ (T-MSiO₂) phase diagrams are used to investigate the suprasolidus evolution of representative amphibolite and eclogite compositions under orogenic P-T conditions in the crust. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/23028 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| 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:11427/23028 Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks Stuck, Tristan James Diener, Johann F A Geological Sciences Metabasic rocks constitute a significant proportion of the rock types found within orogenic metamorphic terranes, and the high temperature (T), suprasolidus behaviour of these lithologies provide an important contribution to the process of internal differentiation in the continental crust. The recent development of thermodynamic activity-composition (a-x) relations for high T mineral and melt phases allows the processes of melt generation and segregation to be quantified using high-resolution mineral equilibria modelling for the first time. In this work, calculated Pressure-Temperature (P-T) and Temperature-Mol. % SiO₂ (T-MSiO₂) phase diagrams are used to investigate the suprasolidus evolution of representative amphibolite and eclogite compositions under orogenic P-T conditions in the crust. 2017-01-25T13:43:32Z 2017-01-25T13:43:32Z 2016 Master Thesis Masters MSc http://hdl.handle.net/11427/23028 eng application/pdf application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geological Sciences Stuck, Tristan James Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| thesis_degree_str | Master's |
| title | Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| title_full | Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| title_fullStr | Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| title_full_unstemmed | Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| title_short | Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks |
| title_sort | mineral equilibria constraints on open system melting and consequences of melt loss in metabasic rocks |
| topic | Geological Sciences |
| url | http://hdl.handle.net/11427/23028 |
| work_keys_str_mv | AT stucktristanjames mineralequilibriaconstraintsonopensystemmeltingandconsequencesofmeltlossinmetabasicrocks |