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Revista de la Asociación Geológica Argentina
Print version ISSN 0004-4822On-line version ISSN 1851-8249
Abstract
PALACIO, M.B.; CHERNICOFF, C.J. and GODEAS, M.C.. The Vis Vis caldera structure associated to Miocene volcanism of the Farallón Negro mining district. Rev. Asoc. Geol. Argent. [online]. 2005, vol.60, n.3, pp.609-612. ISSN 0004-4822.
A caldera structure associated with the Miocene volcanic event of the Farallón Negro district was identified in the Vis Vis depression, Catamarca province, on the basis of the geological interpretation of high-resolution aeromagnetic data, combined with petrographic studies. Two rock types, andesite and tuff, as well as two events of hydrothermal alteration, propylitic and argillic-sericitic, undergone by these rock types, were defined.
Keywords : Vis Vis; Caldera structure; Miocene volcanism; Aeromagnetics; Hydrothermal alteration.