{"id":{"repo_id":"cape-town","oai_identifier":"oai:open.uct.ac.za:11427/23028"},"canonical_url":"https://search.dev.ndltd.org/etd/cape-town/oai:open.uct.ac.za:11427/23028","repository":{"repo_id":"cape-town","name":"University of Cape Town","base_url":"https://open.uct.ac.za/oai/request"},"display":{"title":"Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Stuck, Tristan James"],"institution":"Department of Geological Sciences","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Diener, Johann F A"],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016","date_published":"2016","updated_at":"2026-07-22T22:22:54Z","subjects":[],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11427/23028","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Diener, Johann F A"]},{"key":"dc:creator","label":"Author","values":["Stuck, Tristan James"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-01-25T13:43:32Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2017-01-25T13:43:32Z"]},{"key":"dc:date.issued","label":"Date","values":["2016"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Geological Sciences"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["University of Cape Town"]},{"key":"dc:type","label":"Dc Type","values":["Master Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["Masters"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["MSc"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11427/23028"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["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."]},{"key":"dc:title","label":"Title","values":["Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks"]}]}],"canonical_facts":{"dc:contributor.advisor":["Diener, Johann F A"],"dc:creator":["Stuck, Tristan James"],"dc:date.accessioned":["2017-01-25T13:43:32Z"],"dc:date.available":["2017-01-25T13:43:32Z"],"dc:date.issued":["2016"],"dc:description.abstract":["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."],"dc:identifier.uri":["http://hdl.handle.net/11427/23028"],"dc:language.iso":["eng"],"dc:publisher.department":["Department of Geological Sciences"],"dc:publisher.institution":["University of Cape Town"],"dc:title":["Mineral equilibria constraints on open-system melting and consequences of melt loss in metabasic rocks"],"dc:type":["Master Thesis"],"dc:type.qualificationlevel":["Masters"],"dc:type.qualificationname":["MSc"]},"updated_at":"2026-07-22T22:22:54Z"}