%0 Journal Article
%A Oyarzun Muñoz, Roberto
%A Rodríguez, M.
%A Pincheira, M.
%A Doblas Lavigne, Miguel Manuel Delas
%A Helle, S.
%T The Candelaria (Cu-Fe-Au) and Punta del Cobre (Cu-Fe) deposits (Copiapo, Chile): a case for extension-related granitoid emplacement and mineralization processes?
%D 1999
%@ 0026-4598
%U https://hdl.handle.net/20.500.14352/118197
%X The Lower Cretaceous volcanic formations of Copiapó (Chile) host major stratiform, disseminated, vein, and stockwork mineral deposits. Among these are the Punta del Cobre district (Cu-Fe) and the neighbouring, large Candelaria deposit (Cu-Fe-Au). These deposits are likely to have formed during a major extensional event that was accompanied by granitoid emplacement that triggered important contact metamorphism, metasomatic activity and mineralization processes. We suggest here that alteration-mineralization processes developed within the upper-plate domain of a NNE-trending, ESE-dipping extensional system, while granitoids were accomodated within the lower-plate. If this model prove to be right, `Candelaria-type' deposits may be hidden beneath the present, higher structural position of the Punta del Cobre district.
%~