Universität zu Köln

Recasens, Cristina, Ariztegui, Daniel, Gebhardt, Catalina ORCID: 0000-0002-3227-0676, Gogorza, Claudia ORCID: 0000-0003-2982-1761, Haberzettl, Torsten ORCID: 0000-0002-6975-9774, Hahn, Annette, Kliem, Pierre, Lise-Pronovost, Agathe ORCID: 0000-0002-7977-0512, Luecke, Andreas, Maidana, Nora ORCID: 0000-0002-1429-4834, Mayr, Christoph ORCID: 0000-0001-9002-9963, Ohlendorf, Christian, Schaebitz, Frank, St-Onge, Guillaume ORCID: 0000-0001-6958-4217, Wille, Michael and Zolitschka, Bernd ORCID: 0000-0001-8256-0420 (2012). New insights into paleoenvironmental changes in Laguna Potrok Aike, southern Patagonia, since the Late Pleistocene: The PASADO multiproxy record. Holocene, 22 (11). S. 1323 - 1336. LONDON: SAGE PUBLICATIONS LTD. ISSN 1477-0911

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Abstract

A series of long sediment cores was retrieved from Laguna Potrok Aike, Southern Patagonia, within the framework of PASADO (Potrok Aike Maar Lake Sediment Archive Drilling Project), an ICDP (International Continental Scientific Drilling Program) lake drilling project. This maar lake, located at 52 degrees S, 70 degrees W in the Province of Santa Cruz (Argentina), in the southernmost continental area of the world, is one of the few permanent lakes in the region, providing a unique continuous paleoclimatic and paleoecological lacustrine record for the last glacial cycle. Previous multiproxy studies of this site have characterized the environmental history of these dry lands in the Patagonian Steppe for the last 16 cal. ka BP. This new series of sediment cores provides a much longer record of climate variability in Southern Patagonia since 51.3 cal. ka BP. Using a multiproxy strategy, a set of samples (mostly from core catcher material) was analyzed for physical properties, rock magnetism, geochemistry, CNS elemental analysis, stable isotopes, pollen and diatoms. This preliminary multiproxy limnogeological interpretation sheds new light on the regional Pleistocene and Holocene environmental history, revealing lake-level variations through time and identifying time windows of interest where higher resolution analyses will be carried out.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Recasens, Cristina UNSPECIFIED UNSPECIFIED UNSPECIFIED Ariztegui, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Gebhardt, Catalina UNSPECIFIED orcid.org/0000-0002-3227-0676 UNSPECIFIED Gogorza, Claudia UNSPECIFIED orcid.org/0000-0003-2982-1761 UNSPECIFIED Haberzettl, Torsten UNSPECIFIED orcid.org/0000-0002-6975-9774 UNSPECIFIED Hahn, Annette UNSPECIFIED UNSPECIFIED UNSPECIFIED Kliem, Pierre UNSPECIFIED UNSPECIFIED UNSPECIFIED Lise-Pronovost, Agathe UNSPECIFIED orcid.org/0000-0002-7977-0512 UNSPECIFIED Luecke, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Maidana, Nora UNSPECIFIED orcid.org/0000-0002-1429-4834 UNSPECIFIED Mayr, Christoph UNSPECIFIED orcid.org/0000-0001-9002-9963 UNSPECIFIED Ohlendorf, Christian UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaebitz, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED St-Onge, Guillaume UNSPECIFIED orcid.org/0000-0001-6958-4217 UNSPECIFIED Wille, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Zolitschka, Bernd UNSPECIFIED orcid.org/0000-0001-8256-0420 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-480034
DOI:	10.1177/0959683611429833
Journal or Publication Title:	Holocene
Volume:	22
Number:	11
Page Range:	S. 1323 - 1336
Date:	2012
Publisher:	SAGE PUBLICATIONS LTD
Place of Publication:	LONDON
ISSN:	1477-0911
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ENVIRONMENTAL HISTORY; LAKE-SEDIMENTS; LAGO-CARDIEL; SANTA-CRUZ; ARGENTINA; VARIABILITY; CHRONOLOGY; HEMISPHERE; AMERICA; DIATOM Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48003