Bulk composition modeling and metamorphic evolution of basic granulites of Sonapahr, Meghalaya, North eastern India

Abstract

Garnet lacking vital granulites takes place in Shilling Meghalaya gneissic complex(SMGC) which includes mineral tiers orthopyroxene-clinopyroxene-hornblende-plagioclase. The mass association demonstrating of the crucial granulites has been considered in NCFMASHTO artificial framework to hypothesize the dependability of the mineral tiers present inside the fundamental granulites. The pseudosection in NCFMASTO presentations the restricted scope of weight temperature nation of association of granulite, which degrees amongst 5.0 kbar 8350C and 8kbar 8880C. it's been visible that the vital granulites of the examination sector have been usual in a liquid rich H2O soaked condition at top metamorphismand the nonattendance of garnet in fundamental granulite might be because of further decompression.