Abstract

The well-exposed copper deposits of Chile offer an excellent opportunity to study metallogenetic processes in continental arcs. Along this convergent plate margin, magmatic activity has spanned more than 200 Ma. Distinct epochs of copper mineralization accompanied magmatic and tectonic activity. The three most notable periods are: (1) 150-100 Ma, (2) 42-30 and (3) 10-5 m.y. ago. Between 150 and 100 Ma the most important type of copper mineralization was in stratabound ore deposits, known as mantos, that are either hosted by volcanic

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