Canadian Darryl D. Lindsay (PhD, Class of 1997, P.Geo.) contributed the most influential study of the structural geology of the giant porphyry copper deposit Chuquicamata: “Evolution of an Active Ductile to Brittle Shear System Controlling Mineralization at the Chuquicamata Porphyry Copper Deposit, Northern Chile”, International Geology Review 3i, 945-958, 1995. He lives in Chile with his young family and currently works for SQM www.sqm.com .