Portal de Periódicos da CAPES

Geología y mineralogía de la veta La Rica, Cañada Honda, San Luis, Argentina

2016; National University of Tucumán; Volume: 28; Issue: 1 Linguagem: Espanhol

1852-6217

Natalia Melnyk Bustamante, María C. Gallard Esquivel, M. Belén Roquet, Nilda Esther Urbina, Esteban Crespo-Martínez,

Botany and Geology in Latin America and Caribbean

espanolEl area de estudio se halla en el distrito de Canada Honda, cuya localidad homonima se encuentra a 90 km al NNE de la ciudad de San Luis a aproximadamente 1720 msnm, en el departamento Coronel Pringles, entre los 32° 49' 0.81 S, 66° 1' 58.82 O y 32° 49' 13.08 S, 66° 1' 37.40 O. Las vetas de cuarzo se encuentran hospedadas en rocas metamorficas de alto grado pertenecientes al Complejo San Jose de edad precambrica-paleozoica. La pertenencia minera comprende cuatro vetas de orientacion E-O y una de rumbo NE-SO. La mineralogia de mena de las vetas esta representada por abundante pirita, galena, esfalerita, acompanada en menor proporcion por pirrotita, calcopirita, electrum, melnikovita y como minerales supergenicos anglesita, cerusita y goethita. En base a las caracteristicas morfologicas, mineralogicas y texturales el deposito La Rica se clasifica como epitermal de baja sulfuracion, asociado al volcanismo terciario de Canada Honda, especificamente, al evento volcanico del Cerro del Valle EnglishThe studied area is located in the Canada Honda district, which homonymous town is situated at approximately 90 km to the NNE of San Luis city, approximately 1720 msnm, in the Coronel Pringles department, between 32 ° 49 ‘0.81 “S, 66 ° 1' 58.82” W and 32 ° 49 ’13.08 “S, 66 ° 1' 37.40” W. The quartz veins are hosted in high-grade metamorphic rocks belonging to the San Jose Complex of precambrian-paleozoic age. The mining property includes four veins with E-W orientation and one with NE-SW direction. The ore mineralogy of the veins is represented by abundant pyrite, galene, sphalerite, accompanied in a lower proportion by pyrrhotite, chalcopyrite, electrum, melnikovite and anglesite, cerusite and goethite as supergene minerals. Based on morphological, mineralogical and textural characteristics of the deposit La Rica is classified as a low sulphidation epithermal deposit associated to the Canada Honda terciary volcanism, specifically to the Cerro del Valle volcanic event