Fluvial piracies in the NE sector of the Sierra de Aconquija (Tafí Valley, NW Argentina)
| Autor: | Maria Marta Sampietro Vattuone, José Luis Peña Monné |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
lateglacial-holocene
010506 paleontology Geography Planning and Development Fluvial Environmental Science (miscellaneous) Fault (geology) captures Geociencias multidisciplinaria 010502 geochemistry & geophysics 01 natural sciences LATEGLACIAL-HOLOCENE Ciencias de la Tierra y relacionadas con el Medio Ambiente purl.org/becyt/ford/1 [https] purl.org/becyt/ford/1.5 [https] River dynamics CAPTURES Earth and Planetary Sciences (miscellaneous) Glacial period Holocene 0105 earth and related environmental sciences sierra de aconquija Geography (General) ALLUVIAL FANS geography Geografía Física geography.geographical_feature_category alluvial fans Alluvial fan morphosedimentary units Mountain chain G1-922 Physical geography MORPHOSEDIMENTARY UNITS CIENCIAS NATURALES Y EXACTAS Geology |
| Zdroj: | Cuadernos de Investigación Geográfica, Vol 46, Iss 1, Pp 285-301 (2020) Zaguán: Repositorio Digital de la Universidad de Zaragoza Universidad de Zaragoza CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Zaguán. Repositorio Digital de la Universidad de Zaragoza instname |
| ISSN: | 1697-9540 0211-6820 |
| Popis: | The Sierra de Aconquija is a recently uplifted mountain chain in NW Argentina. The NE side of the sierra is drained by the Muñoz and Los Alisos rivers – whose base level is the Las Carreras Depression that is located to the SW of the Tafí valley. Two of the major headwaters of the Muñoz River suffered during its Holocene development from piracy by the Los Alisos River. These piracies had important consequences on the size of both basins and the functioning of their alluvial fans. The main causes of the captures were changes in river dynamics during Lateglacial and Holocene glacial events. Neotectonic activation does not seem to be the most determining factor, although there are active Holocene faults nearby (Las Carreras Fault 2). Geomorphological and human occupation data recovered from the alluvial fans enables us to estimate that the most recent capture was produced during the Late Holocene. Fil: Peña Monné, Jose Luis. Universidad de Zaragoza. Facultad de Filosofía y Letras; España Fil: Sampietro Vattuone, Maria Marta. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Laboratorio de Geoarqueología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
| Databáze: | OpenAIRE |
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