Análisis estructural de rocas del Complejo Volcánico Marifil en los alrededores del establecimiento Don Raúl, sureste de Valcheta, Río Negro

Abstract

The work was carried in the surrounding of Don Raul Establishment, located 20 km southeast of the town of Valcheta, Rio Negro, between the coordinates 40°44'16.07"S - 66° 00'55.72" W and 40°47'21.04"S - 65°56'33.05" W. The study area is located within the eastern region of the North Patagonian Massif. The objective of this work is to map and analyze, geometrically and kinematically, faults that are affecting the outcrops of the Marifil Volcanic Complex. Within the study area, two domains were distinguished: Domain A and Domain B, of which the main deformation axes were obtained from the kinematic analysis of minor faults in the Faultkin software. For each domain, based on the structures analyzed, were defined: 4 deformation regimes for Domain A and 2 deformation regimes for Domain B. The deformation regimes identified in the study area were found to be similar to those observed in the Lower Jurassic-Lower Cretaceous of the Neuquén Basin and Los Menucos regions, located northwest and west of the study area, respectively.