Reforma-El Rey

Overview

Massive sulfide, zoned with lower Cu-rich, central pyrite-rich, upper Pb-Zn-rich zones. El Rey 200 m long, 40 m high; Reforma 400 m long, 50 m high. Both are 200 m apart. Overturned limb of major N-NE recumbent anticline; Reforma truncated by fault on SE, N-dipping extensional fault on SW side; El Rey is cut by extensional normal to oblique faults; bedding overturned. Calc-alkaline island arc setting. Inferred reserves 9.7 million t @ 0.66% Cu, 2.14% Zn, 0.7% Pb, 1.77 g/t Au, 107 g/t Ag, partially defined.

Geological Context

Tectonic Setting: Siliciclastic-felsic in mature epicontinental arc

Resources & Operations

Production Start: 1903

Data Provenance

Source: USGS MRDS