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Last Interglacial sea-level highstand deduced from notches and inner margins of marine terraces at Puerto Deseado, Santa Cruz Province, Argentina
Author(s)
Language
English
Obiettivo Specifico
5A. Paleoclima e ricerche polari
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/40 (2017)
Pages (printed)
29-39
Issued date
2017
Abstract
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.
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.
Type
article
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zanchetta.pdf
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