Many of the world’s largest copper, gold and base metal mines are located within a major tectonic zone that extends from Alaska through North, Central and South America to southern
Chile. Most of the mineral deposits within this zone are closely associated with igneous rocks intruded into older sedimentary and volcanic sequences during Mesozoic and Tertiary times. Deposit types in the region include epithermal (Au-Ag), porphyry (Cu-Mo-Au), skarn (Cu-Pb-Zn-Mo) and manto (Pb-Zn). Peru is part of the same geological belt in age, rock type and types of mineral deposit.
In Peru, Global holds 100% interest in five copper-gold projects located in central and southern Peru. The projects lie within a linear province of porphyry copper-molybdenum-gold deposits which extend along the Andes mountain chain from Ecuador south through Peru into central Chile and Argentina. These deposits (with total pre-mining tonnage and grades) include La Granja (2.8Bt at 0.6%Cu), Toromocho (2Bt at 0.5%Cu), Constancia (0.4Bt at 0.44%Cu), Cuajone (1.5Bt at 0.76%Cu), Toquepala (2.1Bt at 0.6%Cu), Collahuasi (4.1Bt at 0.81%Cu), Chuquicamata (11.2Bt at 0.65%Cu), La Escondida (4.9Bt at 1.0%Cu), El Teniente (11.8Bt at 0.9%Cu), Los Bronces (5Bt at 0.8%Cu) and Alumbrera (0.8Bt at 0.52%Cu, 0.67g/tAu).