Source of copper in the giant Shimensi W-Cu-Mo polymetallic deposit, South China: Constraints from chalcopyrite geochemistry and oxygen fugacity of ore-related granites

Porphyry-type copper mineralization is generally considered to be related to ore-forming fluid exsolution from oxidized, magnetite-bearing intermediate- to felsic magmas. However, copper deposits associated with ilmenite-bearing per-aluminous evolved granites also exist and their origin remains obscure. The Shimensi W-Cu-Mo polymetallic deposit, located in the northern segment of the Jiangnan Orogen (South China) composed mainly of the...