
handle: 11336/13156
Se estudian los granitoides aflorantes en los alrededores de Mina San Antonio (W), en el extremo norte de la sierra de Vinquis, departamento de Belén, Catamarca. Se caracterizan tres unidades de granitos s.s., peraluminosos. El Granito Piedra Overa es un sienogranito de dos micas, con altos contenidos de P2O5 y Th, y bajos de Sr, tierras raras pesadas e Y. El Granito Vinquis Norte es un sienogranito biotítico, con contenidos de Y levemente altos y bajos de Sr y E.T.R. El Granito Mina San Antonio es un sienogranito muscovítico, con alto contenido de P2O5, y levemente alto de Y, y bajos contenidos de Ba, Sr y E.T.R. Ninguno de los cuerpos presenta altos valores de elementos de mena. Los cuerpos de Vinquis Norte y Mina San Antonio presentan rasgos de consanguinidad. El P habría jugado un papel importante en la fertilidad metalogenética del conjunto, evidente por la presencia de las vetas, la queda expresada en los parámetros de la anomalía de Eu y el perfil de E.T.R. normalizado.
Granitoid bodies cropping out around Mina San Antonio (W) located on the northern edge of the Vinquis range, Department of Belen, Catamarca, are studied. The granitoids of Piedra Overa Granite, North Vinquis Granite and Mina San Antonio Granite, all of peraluminous composition are characterized. Piedra Overa Granite is a two-micas sienogranite, with high contents of P2O5 and Th and low contents of Sr, HREE 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 of the bodies show high values of ore elements. North Vinquis and Mina San Antonio bodies show signs of inbreeding. The apparent granite’s fertility is exposed only within the parameters of the Eu anomaly and the profile of REE normalized.
Fil: Lazarte, Jose Enrique. Universidad Nacional de Tucuman. Facultad de Cs.naturales E Instituto Miguel Lillo. Catedra de Geologia de Minas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
TUNGSTENO, GEOQUÍMICA, https://purl.org/becyt/ford/1.5, SIERRAS PAMPEANAS, GRANITOIDES PERALUMINOSOS, https://purl.org/becyt/ford/1
TUNGSTENO, GEOQUÍMICA, https://purl.org/becyt/ford/1.5, SIERRAS PAMPEANAS, GRANITOIDES PERALUMINOSOS, https://purl.org/becyt/ford/1
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