Los Sedimentos precámbricos del Guainía y el origen de las Ocurrencias auríferas en el Borde occidental del Escudo de Guayanas
1993; Volume: 18; Linguagem: Inglês
ISSN
2357-3767
Autores Tópico(s)Geological and Tectonic Studies in Latin America
ResumoThis paper contains petrographic and field observations about the lithologic units obsserved in the Caranacoa and Naquen Ranges, situated in Guainia Departament, Colombia. It is postulated a Hypothesis about the gold ocurrences known in those ranges. Such hypothesis proposes a gold precipitation from chemically reducing brines caused by oxygen expelled by anaerobic organisms.
Referência(s)