Resumen

GARDINI, Carlos; RIVAROLA, David; AGUERA, Maximiliano  y  CANDELA, Gerónimo. Structure of the region of Sierra de Guayaguas- Marayes, provinces of San Juan and San Luis. Rev. Asoc. Geol. Argent. [online]. 2009, vol.65, n.3, pp. 551-565. ISSN 1851-8249.

The area located in the Serranias del Desierto - SierrasOccidentales of San Juan and San Luis is characterized by Neogene tectonicdeformation of thick-skinned type that affected the nuclei of crystallinebasement and the Triassic and Cretaceous continental sedimentary sequences,product of inversion tectonics of those depocenters. Because of the inversiontectonics are generated fault propagation folds, associated with a submeridianparallel succession of thrusts with middle dipping to the east. Different directionsof displacements along the analyzed fault segments are defined based on thefield study and mapping of the differents structures associated withstrike-slip movement with transpressional and locally transtensionalcharacteristics.

Palabras llave : Inversion tectonics; Rift; Mesozoic; Neogene.