Metapelites in the Himalayan orogenic belt and their protoliths
喜马拉雅造山带变泥质岩系及其地球化学特征

Metapelites from the High Himalayan Crystalline Sequence (HHCS) and the North Himalaya Gneiss Dome (NHGD) have experienced upper amphibolite to granulite facies metamorphism.They consist dominantly of Al-rich gneiss with subordinate K- rich granitic gneiss,marble,and mafic granulite.Major and trace element data on a suite of the Himalayan metapelite show that (1) they are enriched in LILE and LREE relative to HFSE and HREE,respectively;(2) they have high contents of total REE,and substantial negative Eu ano...