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Cerro de Pasco Province Pasco Department
LOCATION
Colquijirca is located 10 km south of Cerro de Pasco, at an elevation of 4,500 meters, and is one of the old Colonial mines that has been intermittently worked for rich near-surface ores for hundreds of years. The Colquijirca mine, now called the El Brocal mine, is one of Peru's oldest continuously operated mines.
GEOLOGY
Colquijirca is described as a lead-zinc-silver mine. The area of mineralization measures about 1 x 3 km. The mineralization is related to a dacite porphyry located about 1 km south of the mine. Colquijirca and Cerro de Pasco are both situated on the same longitudinal fault system. At Colquijirca, the predominant mineralization is in the carbonate portions of the Casapalca Formation. At Cerro...