Boletín de la Sociedad Geológica Mexicana Volumen 74, núm. 1, A300921, 2022 http://dx.doi.org/10.18268/BSGM2022v74n1a300921

Caracterización morfotectónica de la Cuenca del Río Talacasto, Precordillera Central, San Juan, Argentina

Morphometric characterization of the Talacasto river basin, Central Precordillera, San Juan, Argentina

Carla E. Ginesta Torcivia^1,2,*, Natalia N. Rios ^1,2,*, María Yanina Esper Angillieri¹

¹ CONICET Gabinete de Neotectónica y Geomorfología, CIGEOBIO, Universidad Nacional de San Juan, Av. José I. de la Roza y Meglioli, 5400. Rivadavia, San Juan, Argentina.
² Gabinete de Neotectónica y Geomorfología (INGEO). Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de San Juan, Argentina.
* Autores para correspondencia: (C.E. Ginesta Torcivia) This email address is being protected from spambots. You need JavaScript enabled to view it. (N. Rios) This email address is being protected from spambots. You need JavaScript enabled to view it.
Cómo citar este artículo:
Ginesta Torcivia, C.E., Rios, N.N., Esper Angillieri, M.Y., 2022, Caracterización morfotectónica de la Cuenca del Río Talacasto, Precordillera Central, San Juan, Argentina: Boletín de la Sociedad Geológica Mexicana, 74 (1), A300921. http://dx.doi.org/10.18268/BSGM2022v74n1a300921

ABSTRACT

A morphotectonic characterization of the Talacasto River basin, located in the area of Precordillera Central, province of San Juan, Argentine, is presented to identify the main morphotectonic expressions of the relief, for the contribution to the regional seismotectonic characterization. A 12.5 meters’ high resolution digital elevation model is used. The Talacasto River basin is defined under the Strahler criteria, into seven subbasins of fourth order. In this way, the necessary data for the characterization of their basic and derived parameters, longitudinal profiles of the main courses and knickpoints were obtained. The results indicate that the indices substantially differ from one sub-basin to another. The influence of Quaternary tectonic activity for the region is inferred from these results and analyzed individually river patterns, being the sub-basins located in the west of the study area the most affected.

Keywords: neotectonics, morphotectonic indexes, Talacasto River basin, knickpoints.