%0 Journal Article %A Guzman, J. %A Collao, S. %A Oyarzun Muñoz, Roberto %T Andacollo copper-gold district, La Serena, Chile: Preliminary data from the porphyry copper and possible relationships between Cu and Au mineralization %D 2000 %@ 0371-7453 %U https://hdl.handle.net/20.500.14352/102464 %~