Last interglacial sea-level highstand deduced from notches and inner margins of marine terraces at Puerto Deseado, Santa Cruz Province, Argentina

A detailed geomorphological survey was undertaken in the area of Puerto Deseado (Santa Cruz Province, Argentina) to reconstruct the Relative Sea-level (RSL) position during the Last Interglacial highstand. The presence of active and well-preserved abrasive notches and inner margins of terraces relat...

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Detalles Bibliográficos
Autores principales: Bini, Mónica, Zanchetta, Giovanni, Ribolini, Adriano, Salvatore, María Cristina, Baroni, Carlo, Pappalardo, Marta, Isola, Ilaria, Isla, Federico Ignacio, Fucks, Enrique Eduardo, Boretto, Gabriella Margherita, Ragaini Luca, Marzaioli, Fabio, Passariello, Isabella
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Geología
Abrasive notches
Argentina
MIS5e
Patagonia
Relative sea-level
Muescas de abrasión
Nivel relativo del mar
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100909
https://ri.conicet.gov.ar/11336/64582
http://gfdq.glaciologia.it/040_1_03_2017
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:A detailed geomorphological survey was undertaken in the area of Puerto Deseado (Santa Cruz Province, Argentina) to reconstruct the Relative Sea-level (RSL) position during the Last Interglacial highstand. The presence of active and well-preserved abrasive notches and inner margins of terraces related to the MIS5e and to the Holocene, measured with DGPS, allowed to accurately estimate the RSL change from the present to the MIS5e highstand at ca. 21 m. The geomorphological and geochronological analyses support the notion of the presence of a significant regional tectonic uplift in the Atlantic Patagonia, which can be locally estimated at ca. 0.12 mm/yr.

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