Mineral analysis and geochemistry of Muehlig-Hofmannfjella granitoids, Central Drooning Maud Land, East Antarctica ...

• Main Authors: D'Souza, Mervin, Prasad, A V Keshava, Ravindra, Rasik
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2007
• Subjects: Outcrop sample; 20th_Indian_Antarctic_Expedition; Sampling on land; Antarc*; Antarctica; Dronning Maud Land; East Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.611560; https://doi.pangaea.de/10.1594/PANGAEA.611560

Ferrosilite-fayalite bearing charnockite and biotite-hornblende bearing granite are exposed in Mühling-Hofmannfjella, central Dronning Maud Land of East Antarctica. Both are interpreted as essentially parts of a single pluton in spite of their contrasting mineral assemblages. Based on petrologic and geochemical studies, it is proposed that H2O-undersaturated parent magma with igneous crustal component that fractionated under different oxygen fugacity conditions resulted in the Mühlig-Hofmannfjella granitoids. ... : Supplement to: D'Souza, Mervin; Prasad, A V Keshava; Ravindra, Rasik (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, Berlin, Heidelberg, New York, 45-54 ...