Artículo
Geomorphological analysis of the Antinaco‐Los Colorados valley, La Rioja province, Argentina
Corbat, María Cecilia
; Fucks, Enrique Eduardo; Juárez, Oscar Eduardo
; Perdomo, Santiago
; Kruse, Eduardo Emilio
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
07/2024
Editorial:
John Wiley & Sons Ltd
Revista:
Earth Surface Processes And Landforms
ISSN:
0197-9337
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The Antinaco-Los Colorados valley (ALCV) is a tectonic depression located in the center-north of the province of La Rioja (Argentina), limited to both the east and west by mountain ranges, in the broken foreland region. Geomorphological research on environmental dynamics is important for both building a reference framework for further studies and for the development of the socio-economic activities in the area. This study presents the main geomorphological features of the tectonic depression at the regional scale in order to identify the primary factors involved in its evolution and the landforms it contains. The ALCV is asymmetric and it is filled by up to 1600 m of sediments along the western margin. Using literature, images, digital elevation models of the study area, and field work, different morphologies were identified in the valley, mostly linked to Quaternary climatic and tectonic changes. These morphologies were grouped into three main morphogenetic units that characterize this landscape: the relict piedmont levels, the current piedmont and the fluvial-aeolian plain. The identification of fluvial forms suggests that fluvial systems have been important during the evolution of the landscape. Aeolian accumulation features, currently mostly vegetated, were likely formed under drier climatic conditions than those at present and probably related to the last ice age or even more recent times. Successive reactivations of the overall system are not only tectonic, as evidenced by the structural lineaments that affect relict piedmont levels and the fluvial-aeolian plain, but also climatic. Thus, the identified landforms suggest that climatic and tectonic variables account for the variations in the environment of the ALCV, affecting the reaccommodation of the exogenous geomorphological processes and the modelling of the relief.
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Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Corbat, María Cecilia; Fucks, Enrique Eduardo; Juárez, Oscar Eduardo; Perdomo, Santiago; Kruse, Eduardo Emilio; Geomorphological analysis of the Antinaco‐Los Colorados valley, La Rioja province, Argentina; John Wiley & Sons Ltd; Earth Surface Processes And Landforms; 7-2024; 1-23
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