Sr and Pb isotopic constraints on ore formation of the copper deposits in Bikou group rocks, qinling area, China

摘要

The Bikou Group comprises spilite and keratophyre, characterized by lower-grade (greenschist facies) metamorphism, with interbedded basic and acid rocks at the bottom to main basic rock at the top. Some copper deposits and ore spots such as Damaoping, Faziba and Yangba have been found in spilite stratum.