INSUGEO   12554
INSTITUTO SUPERIOR DE CORRELACION GEOLOGICA
Unidad Ejecutora - UE
artículos
Título:
Mineralización wolframífera relacionada a granitos peraluminosos: aspectos geoquímicos de la alteración en granitos del extremo norte de la sierra de Vinquis.
Autor/es:
JOSÉ E. LAZARTE; JULIO C. AVILA; MIGUEL GIANFRANCISCO
Revista:
Serie de Correlación Geológica
Editorial:
Instituto Superior de Correlación Geológica
Referencias:
Lugar: San Miguel de Tucumán; Año: 2011
ISSN:
1514-4186
Resumen:
Abstract Tungsten mineralization related to peraluminous granites: geochemical aspects of alteration in granites from northern sierra de Vinquis Geochemistry of alteration and mineralization of the granitoids outcropping around Mina San Antonio (W), northern of Sierra de Vinquis, Department of Belen, Catamarca, are studied. Piedra Overa Granite is a two-micas sienogranite, with high contents of P2O5 and Th and low contents of Sr, REE and Y. North Vinquis Granite is a biotitic sienogranite, with slightly higher content of Y and low Sr and REE. Mina San Antonio Pluto is a muscovitic sienogranite with high P2O5 content, and slightly high Y and low contents of Ba, Sr and REE. None bodies show high values of ore elements. Anomalous values of ore elements were not observed in the studied bodies. The GPO and GVN granites have no specialization according to K/Rb and Ba/Rb parameters. Greisenization is exposed within the parameters Eu/Eu*, Zr/Nb
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