INVESTIGADORES
CASTRO Brigida Marta Ester
congresos y reuniones científicas
Título:
Metamorfismo retrógrado asociado a una zona de falla, Serranías del Desierto, San Juan, Argentina
Autor/es:
CASTRO DE MACHUCA, BRÍGIDA; CARRIZO, MÓNICA
Lugar:
Mendoza
Reunión:
Congreso; XII Congreso Geológico Argentino y II Congreso de Exploración de Hidrocarburos; 1993
Institución organizadora:
Asociación Geológica Argentina - Instituto Argentino del Petróleo
Resumen:
A thick belt of cataclastic and retrograde metamorphic rocks, was recognized in the western slope of the Serranías del Desierto, San Juan province. These rocks are the result of the tectonic activity of a NNW-SSE megastructure, the Rickard fault, since the Early Triassic. Deformation due to this faulting caused microbreccias and protocataclasites. Retrograde metamorphism closely related to this tectonic activity, resulted in the retrogression of mineral assemblages from amphibolite-granulite facies to greenschist facies.
