02139nmc a2200253 4500 20260520010332.0 260224s xxu CD I116 64 0015469 Caracterización estructural de la subcuenca Cacheuta-Tupungato del eje occidental del rift de la Cuenca Cuyana 11/11/2016 ; 11/11/2016 16 p. Structural characterization of the Cacheuta-Tupungato sub-basin from the occidental sector of the Cuyo Basin This paper characterizes the 3D Triassic and Plio-Holocene deformation of the Cacheuta sub-basin. This sub-basin is located in the western axis of the Cuyo basin, in the Andean foreland at the transitional segment between flat subduction (north of 33°S) and normal subduction (south of 34°S). It integrates surface and subsurface data together with kinematic analysis of the main Andean structures and kinematic/dynamic analysis of meso-scale shear planes. The Andean foreland between 33 and 34°S is characterized by two Plio-Holocene stress fields coexisting side by side: a northern compressional regime and a southern strike-slip one. Our model highlighs the outstanding correlation between the morphology of the subducted slab, the spatial shift from compressive to strike-slip tectonic regime, and the southward disappear of the Precordillera. We suggest that the inversion of Triassic extensional structures, striking NNW to WNW, were reactivated during the Plio-Pleistocene in those areas with transpression to strike-slip regime, while in the compressive regime domain, they remain fossilized. CONGTP Giambiagi, Laura 55791 Moreiras, Stella Maris 55792 Gómez, Gustavo 55793 Stahlschmidt, Erico 55794 Spagnotto, Silvana 55795 Mescua, José 55796 Congreso de Exploración y Desarrollo de Hidrocarburos (9no. : 2014 nov. 3-7 : Mendoza) 54287 189840 189840 https://biblioteca.iapg.org.ar/ArchivosAdjuntos/CONEXPLOR2014/597-Caracterizacionestructural.pdf 0 0 0 0 257659 BAAB BAAB CD I116 64 0015469 2026-03-06 200062086 0 CD I116 64 0015469 200062086 2026-03-06 00:19:59 2026-03-06 ARCHIVO