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Showing 1 to 4 of 4 for “"Plagiogranite"”.
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Making oceanic plagiogranite bodies by thermal migration: evidence from the Agros transect, Troodos ophiolite, Cyprus
The mechanism by which plagiogranite bodies form within the ocean crust remains enigmatic. Plagiogranites are anomalously high in their silica content relative to basalt, and their petrogenesis has been primarily attributed to either extreme (>90%) fractional crystallization of a basaltic melt …
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Ghost granophyre: A new texture with implications for plagiogranite differentiation and Ti-in-Quartz thermometry
… is overwhelmingly mafic with the exception of plagiogranites, which can represent relatively extensive volumes of silicic material locally and are common at the gabbro-sheeted dike contact. The origin of plagiogranites is poorly understood. Granophyre, which is also poorly understood, is a …
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The Geology And Geochemistry Of The Archean Flavrian Pluton, Noranda, Quebec
… granite, Eldrich diorite dikes, the Lac Flavrian plagiogranite, the St. Jude plagiogranite and breccia, and late diorite. The plagiogranites were coeval with the Lac Dufault granodiorite to the east. (delta)D and (delta)('18)O results indicate that the landmass above the Flavrian emerged above …
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Structural, stratigraphic and geochemical studies of the Horwood Peninsula - Gander Bay Area, Northeast Newfoundland /
… greywackes indicate source areas consisting of plagiogranite, low grade metamorphic rocks and ultramafic rocks. Rare sedimentary structures in both Groups indicate a southeasterly provenance. Trace element analyses of greywackes also reveal a possible island-arc affinity.