New insights into paleoenvironmental changes in Laguna Potrok Aike, southern Patagonia, since the Late Pleistocene: The PASADO multiproxy record

Please always quote using this URN: urn:nbn:de:bvb:29-opus4-39647
  • 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°S, 70°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 theA 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°S, 70°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.show moreshow less

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Author:Cristina Recasens, Daniel Ariztegui, Catalina Gebhardt, Claudia Gogorza, Torsten Haberzettl, Annette Hahn, Pierre Kliem, Agathe Lisé-Pronovost, Andreas Lücke, Nora Maidana, Christoph Mayr, Christian Ohlendorf, Frank Schäbitz, Guillaume St-Onge, Michael Wille, Bernd Zolitschka
URN:urn:nbn:de:bvb:29-opus4-39647
DOI:https://doi.org/10.1177/0959683611429833
Title of the journal / compilation (English):The Holocene
Document Type:Article
Language:English
Year of Completion:2012
Publishing Institution:Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Release Date:2013/12/04
Tag:diatoms; geochemistry; lacustrine sediments; physical properties; pollen; rock magnetism; stable isotopes
SWD-Keyword:-
Volume:22
Issue:11
Pagenumber:1323-1335
Original publication:The Holocene 22.11 (2012): S. 1323-1335. 03.12.2013 <http://hol.sagepub.com/content/22/11/1323.abstract>
Institutes:Naturwissenschaftliche Fakultät
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
open_access (DINI-Set):open_access
Collections:Universität Erlangen-Nürnberg / Allianzlizenzen: Alle Beiträge sind mit Zustimmung der Rechteinhaber aufgrund einer DFG-geförderten Allianzlizenz frei zugänglich. / Allianzlizenzen 2012
Licence (German):Keine Creative Commons Lizenz - es gilt der Veröffentlichungsvertrag und das deutsche Urheberrecht
Licence (German):National- bzw. Allianzlizenz (nur intern)