Modelado del equilibrio de fases de la fusión parcial del basamento Paleozoico de San Martín de los Andes

GIACOSA RAÚL E.; SERRA VARELA SAMANTA; HEREDIA CARBALLO NEMESIO; GONZÁLEZ PABLO DIEGO

Córdoba

Congreso; Congreso de Mineralogía, Petrología ígnea y Metamórfica y, Metalogénesis; 2019

Phase equilibria modelling of the partial melting conditions of the Paleozoic basement in San Martín de los Andes. This work is focused on the determination of P-T conditions for the and pressure of this event between 680° and 736°C and 4-5.4 kbar metamorphic rocks in San Martin de Los Andes area that have reached anatectic conditions. Basement rocks in this area comprise high-grade Lower Paleozoic metamorphic rocks from Northpatagonian Andes. In order to accomplish this, microtextural analysis, pseudosection modelling and a conventional geothermometer have been used. The combination of these methods allows us to constrain the temperature.