Geología y Metalogenia de la Puna

R. N. Alonso; J. G. Viramonte

doi:10.3989/egeol.87435-6610

Geología y Metalogenia de la Puna

Authors

R. N. Alonso Universidad Nacional de Salta-CONICET
J. G. Viramonte Universidad Nacional de Salta-CONICET

DOI:

https://doi.org/10.3989/egeol.87435-6610

Keywords:

Regional geology, Metallogeny, Andes, Puna, South America, Argentina

Abstract

Relationships between geological evolution, tectonic setting, magmatism and mineralization are pointed out. The geological Puna province is considered as two geological subprovinces: a northern and southern one. being the Olacapato megafault the boundary between them. Two principal pulses for the metalic mineralization are recognized: an Ordovician and a Miocenic one. Three north-southward mineralizated belts for the Ordovician time are described: eastern (Zn, Pb, Ag, baritine), central polymetalic (Cu, Fe, Zn, Pb, baritine and quartz) and western (Au, quartz) which would be the southern end of some Bolivian belts. On the other hand, four transversal (WNW-ESE) mineralizated belts for the Miocenic times, associated with the transversal volcanic ranges are described. From north to south: Coyahuaima (Sn, Ag, Pb, Sb); Quevar (Ag, Pb, Zn); Antofalla (Pb, Ag, Zn); Carachipampa (Cu). At last, relationships between the geological evolution of the Puna province and the non-metalic mineral occurrences are described, pointing out that northern Puna can be defined as "metal-bearing region" and the southern Puna as "nonmetal bearing regíon".

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Published

1987-12-30

How to Cite

Alonso, R. N., & Viramonte, J. G. (1987). Geología y Metalogenia de la Puna. Estudios Geológicos, 43(5-6), 393–407. https://doi.org/10.3989/egeol.87435-6610

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Issue

Vol. 43 No. 5-6 (1987)

Section

Articles

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