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Artículo

Geomorphology and internal architecture of Holocene sandy-gravel beach ridge plain and barrier spits at Río Chico area, Tierra del Fuego, Argentina

Montes, AlejandroIcon ; Bujalesky, Gustavo GabrielIcon ; Paredes, José Matildo
Fecha de publicación: 07/2018
Editorial: Pergamon-Elsevier Science Ltd
Revista: Journal of South American Earth Sciences
ISSN: 0895-9811
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Geociencias multidisciplinaria

Resumen

The internal architecture and processes involved in the development of paraglacial sandy-gravel beach ridges and barrier spits have been analyzed by interpretation of ground-penetrating radar (GPR) records, satellite images and detailed topographical sections on Holocene deposits in Río Chico area, Tierra del Fuego, Argentina. These littoral deposits correspond to the infill of an extensive and shallow embayment facing the South Atlantic, and developed during the mid-Holocene. Radar facies were identified and characterized from both beach ridge plain and barrier spits. The radar facies in the beach ridge plain are interpreted as mainly progradational and regressive, associated with stages of high availability of sediment supply. On the contrary, barrier spits show a retrogradational pattern and occurred in transgressive conditions by rollover processes during periods of marked scarcity of sediment supply. Evolutionary models of the internal architecture of both beach ridge plain and barrier spits are developed for the southern hemisphere during stable sea level conditions.
Palabras clave: BARRIER SPIT , BEACH RIDGE PLAIN , GROUND PENETRATING RADAR , HOLOCENE , TIERRA DEL FUEGO
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/86733
URL: https://www.sciencedirect.com/science/article/pii/S0895981117303954
DOI: https://doi.org/10.1016/j.jsames.2018.03.012
Colecciones
Articulos(CADIC)
Articulos de CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Citación
Montes, Alejandro; Bujalesky, Gustavo Gabriel; Paredes, José Matildo; Geomorphology and internal architecture of Holocene sandy-gravel beach ridge plain and barrier spits at Río Chico area, Tierra del Fuego, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 84; 7-2018; 172-183
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