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Mechanisms to generate ultrahigh-temperature metamorphism
Ultrahigh-temperature (UHT; T max≥ 900° C) metamorphism requires unusually high heat
in continental crust at depths of 15–55 km, but how such extreme thermal conditions are …
in continental crust at depths of 15–55 km, but how such extreme thermal conditions are …
The mineral system approach applied to magmatic Ni–Cu–PGE sulphide deposits
Abstract Most magmatic Ni–Cu–PGE sulphide deposits occur within long-lived magma
pathways fed by high degree partial melts of the mantle. Holistic mineral-system analysis for …
pathways fed by high degree partial melts of the mantle. Holistic mineral-system analysis for …
Th/U ratios in metamorphic zircon
The Th/U ratios of zircon crystals are routinely used to help understand their growth
mechanism. Despite the wide application of Th/U ratios in understanding the geological …
mechanism. Despite the wide application of Th/U ratios in understanding the geological …
Zircon Th/U ratios in magmatic environs
A comprehensive database of zircon composition in West Australian magmatic rocks reveals
negative correlations between both U and Th zircon/whole rock ratio and the zircon …
negative correlations between both U and Th zircon/whole rock ratio and the zircon …
[HTML][HTML] On ultrahigh temperature crustal metamorphism: Phase equilibria, trace element thermometry, bulk composition, heat sources, timescales and tectonic …
DE Kelsey, M Hand - Geoscience Frontiers, 2015 - Elsevier
Ultrahigh temperature (UHT) metamorphism is the most thermally extreme form of regional
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …
crustal metamorphism, with temperatures exceeding 900° C. UHT crustal metamorphism is …
Granitic pegmatites as reflections of their sources
P Černý, D London, M Novák - Elements, 2012 - pubs.geoscienceworld.org
Pegmatites accentuate the trace element signatures of their granitic sources. Through that
signature, the origin of pegmatites can commonly be ascribed to granites whose own source …
signature, the origin of pegmatites can commonly be ascribed to granites whose own source …
[HTML][HTML] A geochronological review of magmatism along the external margin of Columbia and in the Grenville-age orogens forming the core of Rodinia
A total of 4344 magmatic U-Pb ages in the range 2300 to 800 Ma have been compiled from
the Great Proterozoic Accretionary Orogen along the margin of the Columbia/Nuna …
the Great Proterozoic Accretionary Orogen along the margin of the Columbia/Nuna …
Contrasting styles of Phanerozoic and Precambrian continental collision
There are differences in the style of collisional orogens between the Phanerozoic and the
Precambrian, most notably the appearance of blueschists and ultrahigh pressure …
Precambrian, most notably the appearance of blueschists and ultrahigh pressure …
Multi-proxy evidence for subduction of the Neoproterozoic Adamastor Ocean and Wilson cycle tectonics in the South Atlantic Brasiliano Orogenic System of Western …
Abstract Field, petrographic, geophysical, geochronological, elemental and isotopic data
support the identification of distinct components of a Wilson cycle (rift-drift-subduction …
support the identification of distinct components of a Wilson cycle (rift-drift-subduction …
Compressional intracontinental orogens: Ancient and modern perspectives
Compressional intracontinental orogens are major zones of crustal thickening produced at
large distances from active plate boundaries. Consequently, any account of their initiation …
large distances from active plate boundaries. Consequently, any account of their initiation …