IIPG 25805
INSTITUTO DE INVESTIGACION EN PALEOBIOLOGIA Y GEOLOGIA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
CARACTERIZACIÓN GEOLÓGICO-METAMÓRFICO DEL BASAMENTO DEL EXTREMO NOROESTE DE LA CORDILLERA DEL VIENTO, NEUQUÉN.
Autor/es:
DE LA PUENTE, G. SUSANA; GONZÁLEZ, PABLO D.; AGÜERO, ALEXIS EMMANUEL
Lugar:
SAN MIGUEL DE TUCUMÁN
Reunión:
Congreso; CONGRESO GEOLÓGICO ARGENTINO XX; 2017
Institución organizadora:
Universidad Nacional de Tucumán - Facultad de Ciencias Naturales e Instituto Miguel Lillo
Resumen:
Geological-metamorphic characterization of the basement of the northwestern end of the Cordillera del Viento, Neuquén.The aim of this contribution is to describe the metamorphic and structural evolution of the low-grade basement rocks of the Guaraco Norte Formation in Chacay creek, at the northern portion of the Cordillera del Viento, Neuquén. Pre-Upper Devonian sedimentary protoliths of the Guaraco Norte Formation underwent regional metamorphism (M1) under greenschist facies conditions and F1 decametric folds with western tectonic transport. Two granitoid plutons intrude the already deformed and regionally metamorphosed rocks, generating hornfels and migmatites by contact metamorphism. Finally, the basement is affected by E-oriented and W-vergent high-angle reverse faults, which are associated to duplexes.
