Relative age of Cordilleran base metal lode and replacement deposits, and high sulfidation Au–(Ag) epithermal mineralization in the Colquijirca mining district, central Peru

Abstract  At Colquijirca, central Peru, a predominantly dacitic Miocene diatreme-dome complex of 12.4 to 12.7 Ma (40Ar/39Ar biotite ages), is spatially related to two distinct mineralization types. Disseminated Au–(Ag) associated with