Masa Valverde

Overview

Two main ore bodies of massive and banded pyrite, 1 km long, between 400 and 850 m depth. Upper ore body up to 70 m thick, lenses and blankets of massive sulfides and stockwork zones, over 100 m thick. Lower orebody is smaller and thinner (incompletely explored). Three main ore type: Complex ore 11.0 million t @ 0.54% Cu, 5.0% Pb+Zn, 0.76 g/t Au; Cupriferous ore 1.3 million t @ 1.91% Cu, 1.7% Pb+Zn, 0.10 g/t Au; Pyrite ore 80 million t @ 0.40% Cu, 1.5% Pb+Zn, 0.10 g/t Au. Total tonnage 120 million t @ 0.5% Cu, 1.3% Zn, 0.6% Pb, 0.8 g/t Au, 38 g/t Ag, open.

Geological Context

Tectonic Setting: Siliciclastic-felsic in mature epicontinental arc

Resources & Operations

Data Provenance

Source: USGS MRDS