Genesis of Ferropotassic A-Type Granitoids of Mühlig-Hofmannfjella, Central Dronning Maud Land, East Antarctica


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Hannes.Grobe [ at ] awi.de

Abstract

Ferrosilite-fayalite bearing charnockite and biotite-hornblende bearing granite areexposed in Mühlig-Hofmannfjella, central Dronning Maud Land of East Antarctica. Both areinterpreted as essentially parts of a single pluton in spite of their contrasting mineralassemblages. Based on petrologic and geochemical studies, it is proposed that H2Oundersaturated parent magma with igneous crustal component that fractionated under different oxygen fugacity conditions resulted in the Mühlig-Hofmannfjella granitoids.



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Eprint ID
16926
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D'Souza, M. J. , Prasad, A. V. K. and Ravindra, R. (2006): Genesis of Ferropotassic A-Type Granitoids of Mühlig-Hofmannfjella, Central Dronning Maud Land, East Antarctica , In: Fütterer, D.K.; Damaske, D.; Kleinschmidt, G.; Miller, H.; Tessensohn, F. (eds) Antarctica contributions to global earth sciences. Springer-Verlag, Berlin Heidelberg New York .


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