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Contribución al conocimiento de la geología del depósito de Au-Cu de La Pava (Península de Azuero, Panamá)
Corral, Isaac; Cardellach, Esteve; Gómez-Gras, David; Canals i Sabaté, Àngels
Universitat de Barcelona
The «La Pava» Au-Cu deposit is hosted by a vulcanosedimentary sequence, named Ocú Formation,developed in an island arc environment that resulted from the subduction of the Nazca Plate beneath the Caribbean Plate during the Cretaceous times. The deposit consists of disseminations and stockworks of pyrite and chalcopyrite accompanied by barite, quartz and carbonates. Three hydrothermal alteration zones have been recognized: silicic, argillic and propilityc, typical of gold-related high sulfidation systems. A supergenic alteration overprints the hydrothermal alterations developing a cap rich in silica and Feoxides. The detailed study of the Ocú Fm. indicates that the sulfides and the accompanying gold was formed in a submarine environment. Therefore we suggest that «La Pava» represents an Au-Cu hybrid deposit between high sulphidation epithermal and VMS types, which are found in volcanogenic massive sulphide environments.
Geologia
Panamà
Geology
Panama
(c) Sociedad Geológica de España, 2009
Article
info:eu-repo/semantics/publishedVersion
Sociedad Geológica de España
         

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