Sedimentary patterns in the Vinchina basin: interplay between compressional and transcurrent tectonism during the Andean orogeny

CICCIOLI, P.L., MARENSSI, S.A., ROSSELLO, E.A. & C.O. LIMARINO

BOLLETTINO DI GEOFISICA TEORICA ED APPLICATA

ISTITUTO NAZIONALE DI OCEANOGRAFIA E DI GEOFISICA

Lugar: Trieste; Año: 2013 vol. 54 p. 217 - 220

0006-6729

mountains belts in South America reaching up to 6200 m in height. Despite the fact that the uplift of theNevados del Famatina was (and is) closely related to the Andean Orogeny, these mountains are located about400 km from the Chile trench and up to 100 km from the main Andean Cordillera (Cobbold et al., 2007).The origin of the high and isolated Nevados del Famatina is related to a Neogene tectonic syntaxis due tothe relationship between the left-lateral Valle Fértil wrench fault and the right-lateral Tucuman wrench fault(Rossello et al., 2011). The Vinchina Basin, a highly subsiding basin that accumulated more than 10,000 mof continental sediments during the Neogene developed between the magmatic arc, located in the AndeanCordillera, and the Famatina Mountain. The study of the sedimentary fill of the Vinchina Basin allowsreconstructing not only the evolution of the magmatic arc (and its associated deformation) but also the timingand effect of the uplift of the Nevados del Famatina