Hapuarachchi, D.J.A.C.2016-07-052016-07-051991An International Field Workshop and Seminar on "Composition and Evolution of High-Grade Gneiss Terrains":p.12-13https://dl-ifs.nsf.gov.lk/handle/1/1697Variable metamorphic fluid conditions and metamorphic facies anomalies in the Sri Lankan precambrianA