Pan-African extension and near-isothermal exhumation of a granulite facies terrain, Dronning Maud Land, Antarctica

The Mühlig-Hofmann- and Filchnerfjella in central Dronning Maud Land, Antarctica, consist of series of granitoid igneous rocks emplaced in granulite and upper amphibolite facies metamorphic rocks. The area has experienced high-temperature metamorphism followed by near-isothermal decompression, parti...

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Veröffentlicht in:	Geological magazine 2004-11, Vol.141 (6), p.649-660
Hauptverfasser:	ENGVIK, A. K., ELVEVOLD, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	amphibolite facies Antarctica Cambrian complexes continental drift cratons crust deformation emplacement exhumation extension fabric facies faults Filchner Ice Shelf folds foliation Geology Gondwana granulite facies High temperature high-grade metamorphism Igneous rocks intrusions Magma Melting Metamorphic rocks Metamorphism mineral assemblages mineral composition Minerals Muhlig-Hofmann Ice Shelf Neoproterozoic Original Article orogenic belts P-T conditions paleogeography Paleozoic Pan-African Orogeny petrography Plate tectonics plutonic rocks Precambrian Proterozoic Quartz quartz syenite Queen Maud Land Rocks shear zones silicates Stratigraphy structural analysis Structural geology syenites tectonics temperature terranes textures upper Precambrian
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