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Geologic evolution of the Atacama Basin during the Lower Cretaceous.

Authors :
Cisternas M.E.
Diaz L.L.
Cisternas M.E.
Diaz L.L.

Abstract

A number of stratabound deposits occur associated with the Lower Cretaceous sequence in the Atacama region. The following are presented in detail: Punta del Cobre Cu deposit associated with the volcanic and volcanoclastic facies of the lower part of the Cretaceous sequence; Bellavista Ag-Zn deposit in the lower carbonatic facies which bears important amounts of volcanoclastic particles; and Mamina (Ba) and the Bandurrias (Fe) deposits which occur in the carbonatic-evaporitic facies with intercalated tuffs, that is characteristic for the intermediate regressive pulse of the Lower Cretaceous sequence in the Atacama region.<br />A number of stratabound deposits occur associated with the Lower Cretaceous sequence in the Atacama region. The following are presented in detail: Punta del Cobre Cu deposit associated with the volcanic and volcanoclastic facies of the lower part of the Cretaceous sequence; Bellavista Ag-Zn deposit in the lower carbonatic facies which bears important amounts of volcanoclastic particles; and Mamina (Ba) and the Bandurrias (Fe) deposits which occur in the carbonatic-evaporitic facies with intercalated tuffs, that is characteristic for the intermediate regressive pulse of the Lower Cretaceous sequence in the Atacama region.

Details

Database :
OAIster
Notes :
und
Publication Type :
Electronic Resource
Accession number :
edsoai.on1309200863
Document Type :
Electronic Resource