Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"phase equilibria modelling"”.
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Estimating the thickness of an ultrahigh-pressure (UHP) terrane: insights from phase equilibria modelling and Zr-in-rutile thermometry, Dulan area, North Qaidam terrane, China
… the obtained Zr-in-rutile temperatures. Phase equilibria modelling and Zr-in-rutile thermometry of four eclogites indicate they reached peak metamorphic iv conditions at ~26-32 kbar and ~630-690 °C. Coupling garnet mode isopleths with Grs isopleths appears to be a powerful approach to …
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The rheology and dynamics of the Precambrian lithosphere – insights from the British Isles
… suggested. I integrate results from fieldwork, phase equilibria modelling, and numerical modelling to show that sagduction was unlikely to be feasible. Furthermore, I develop a method that allows the feasibility of sagduction to be assessed at other sites. I conclude that sagduction is unlikely …
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LITHIUM ENRICHMENT IN ANATECTIC PEGMATITES: NEW INSIGHTS FROM THE THERMOMETAMORPHIC AUREOLE OF THE ADAMELLO BATHOLITH
… and generation of Li-enriched felsic melts. Phase equilibria modelling reveals that the Crd-bearing metapelitic migmatites produced around 20 vol.% melt fraction through fluid-assisted melting reactions, while the Crd-absent stromatic metatexites produced ca. 35 vol.% of melt during …
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Insights into magmatic processes from the crystal orientation mapping of igneous microstructures
… is almost complete. I combine EBSD and phase equilibria modelling to demonstrate that megacrysts grew in melt-rich magma, when crystals were able to rotate relative to each other and attach in low-energy orientations in a process known as synneusis. Synneusis is generally assumed to …
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Tectonometamorphic evolution of Medium-P granulites of the Namaqua Metamorphic Province at the Gordonia Subprovince marginal zone, southern Namibia
… belt that is characterised by a complex, polyphase Mesoproterozoic metamorphic history. Using an integrated approach, the P-T-t evolution of a portion of the marginal zone between two major tectonic domains in the western NMC: the Richtersveld and Gordonia Subprovices is investigated, with the …
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The effects of high temperature metamorphic and melting processes on granulite-facies rocks
… processes. A recent development in petrological modelling of granulite facies rocks is reintegration of melt generated and lost during metamorphism. The aim of melt reintegration is to create bulk compositions suitable for modelling prograde subsolidus evolution. Melt reintegration methodology …