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Showing 1 to 8 of 8 for “"metamorphic fluid"”.
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Granulite-facies metamorphism, fluid buffering and partial melting in the Buffels River area of the Namaqualand metamorphic complex, South Africa
… melting and the infiltration and buffering of metamorphic fluid is examined.
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Petrology of the Ashe Formation, Shortt's Knob area, Floyd County, Virginia
… + calcite + H₂O limits the CO₂ content of the metamorphic fluid over most of the area to low values, probably <0.1 mol fraction. The amphibolites probably represent basaltic flows, some amygdaloidal. Chlorite schists are interpreted to have been picritic sills.
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Characterization of the mineralized albitite bodies at Biggejavri, Kautokeino Greenstone Belt, Finnmark, Northern Norway
… aforementioned elements were released into the metamorphic fluid and formed rare minerals of the davidite-lovingerite solid solution series ((La,Ce,Ca)(Y,U)(Ti,Fe3+)20O38-(Ca,Ce)(Ti,Fe3+,Cr,Mg)21O38).
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Die Genese der Goldlagerstätte Hira Buddini, Südindien
… deformation and metamorphism. A prograde metamorphic evolution of the host rocks is indicated by geothermobarometry on zoned amphibole-plagioclase pairs. A regional foliation developed during intense horizontal shortening at peak metamorphic conditions at P = 400 ± 100 MPa and T = 610° ± …
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The Geology And Geochemistry Of The Archean Flavrian Pluton, Noranda, Quebec
… the plagiogranites. A significant component of metamorphic fluid, in addition to subordinate seawater, was associated with the later stages of alteration and metal concentration.;Seawater alteration of diorite, tonalite, and andesite overlying the albite granite caused pervasive albitization, …
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Multidisciplinary analysis of a polymetamorphic terrane, western New England
… records Taconian (Ordovician) peak metamorphic effects in the west and Acadian (Devonian) peak effects in the east. In between, a complicated zone of overlap contains predominantly Taconian mineral assemblages that have been variably affected by Acadian processes. ⁴⁰Ar/³⁹Ar data …
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Characterization of pentlandite-bearing quartz veins of Kambalda, Western Australia
… and gangue minerals formed by precipitation from metamorphic fluids. Mineralization Style IV represents fractured or brecciated quartz veins with pentlandite, pyrrhotite, pyrite and chalcopyrite mechanically remobilized and localized in late fractures. This study focused on understanding the …
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History of the fluids associated with the lode-gold deposits, and complex U-PGE-Au vein-type deposits, Goldfields Peninsula, Northern Saskatchewan, Canada
… rocks have undergone a complex and protracted fluid history. All of the deposits studied are physically hosted in a variably metamorphosed sedimentary sequence, the Aphebian-aged Murmac Bay Group (complex Au-PGE-U vein-type deposits, e.g. Nicholson, Fish Hook), or within granites "intrusive" …