GEOQUÍMICA DE LOS FILOSILICATOS EN EL PÓRFIDO DE CU (AU) ALTAR, SAN JUAN: SU APLICACIÓN EN EXPLORACIÓN MINERA, GEOTERMOMETRÍA Y METALURGIA

MAYDAGÁN LAURA; FRANCHINI, MARTA; IMPICCINI, AGNES; LENTZ, DAVE

Tucumán

Congreso; XII Congreso de Mineralogía y Metalogenia; 2016

Asociación Mineralógica Argentina

Phyllosilicates geochemistry in the Altar porphyry Cu-(Au) deposit, San Juan, Argentina:applications in exploration, geothermometry,and geometallurgy. Biotite, chlorite, muscovite, illite,and kaolinite from the Altar porphyry Cu-(Au) depositof the Andean Main Cordillera of San JuanProvince (Argentina) were constrained using X-ray diffraction, electron microprobe, and infrared spectroscopy analyses, to map compositional variations. Our study demonstrates that variations in phyllosilicate composition have the potential to be used as vectors in ore exploration and to differentiate between barren and fertile intrusions. A detailed analysisof type and proportion of phyllosilicates, as well as the presence of ore minerals in fine fractions,should be undertaken to optimize metal recoveries during the upcoming benefaction of these ores.