نتایج جستجو برای: granulite

تعداد نتایج: 412  

Journal: :Geoscience frontiers 2022

• Continental crust was formed during metamorphic events in amalgamated supercontinents. Granites by dehydration melting (upper crust) and mantle-derived fluids (lower crust). Mantle reach the middle-upper along shear zones generate granites. Until middle of 20th century, continental considered to be dominantly granitic. This hypothesis revised after Second World War when several new studies le...

Journal: :Geologica Carpathica 2021

Major and trace element composition of silicate melt inclusions (SMI) their rock-forming minerals were studied in mafic garnet granulite xenoliths from the Bakony–Balaton Highland Volcanic Field (Western-Hungary). Primary SMIs occur clinopyroxene plagioclase plagioclase-rich domains granulites ilmenite vicinity these wall rock. Based on major elements, we demonstrated that have no connection wi...

Journal: :SN applied sciences 2022

Abstract This study presents the new petrology and geochemistry data for comprehension of origin emplacement conditions Lolodorf mafic rocks whitin Nyong Complex. The meta-mafic consist fine-grained garnet (FGM) coarse-grained (CGM) presenting nearly similar mineral composition. They are made up quartz, plagioclase, orthopyroxene, clinopyroxene, amphibole, opaques, apatite rutile. also present ...

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