Universität zu Köln

David Rojo, Leandro, Mercedes Paez, Marta, Orlando Chiesa, Jorge, Nestor Strasser, Edgardo and Schaebitz, Frank (2012). PALYNOLOGY AND PALEOENVIRONMENTAL CONDITIONS DURING THE LAST 12,600 CAL. YEARS BP AT SALINAS DEL BEBEDERO (SAN LUIS, ARGENTINA). Ameghiniana, 49 (4). S. 427 - 442. BUENOS AIRES: ASOCIACION PALEONTOLOGICA ARGENTINA. ISSN 1851-8044

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Abstract

The availability of late Quaternary paleoenvironmental information in central-western Argentina is still scarce because of the paucity of archives recording past environmental changes. This work reports palynological and sedimentological analyses of a sedimentary sequence from a core taken in the Salinas del Bebedero playa-lake basin (33 degrees 20'S-66 degrees 45'W), with the main objective of contributing towards the knowledge on vegetation and paleoenvironmental history in central western Argentina during the last c. 12,600 cal. yrs BP. Sedimentological results suggest a maximum lake high-stand c. 12,600 after which lake levels decreased until c. 3600 cal. yrs BP when modern lake levels were reached. Pollen analysis suggests a regional vegetation with Monte-Espinal affinity similar to the present-day vegetation, which essentially remained unchanged during the Holocene. Prior to that time, the predominance of halophytic communities around c. 12,600 cal. yrs BP suggests more arid conditions due to lower precipitation (and/or higher temperatures) compared with the present day conditions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code David Rojo, Leandro UNSPECIFIED UNSPECIFIED UNSPECIFIED Mercedes Paez, Marta UNSPECIFIED UNSPECIFIED UNSPECIFIED Orlando Chiesa, Jorge UNSPECIFIED UNSPECIFIED UNSPECIFIED Nestor Strasser, Edgardo UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaebitz, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-476399
DOI:	10.5710/AMGH.13.12.2011.416
Journal or Publication Title:	Ameghiniana
Volume:	49
Number:	4
Page Range:	S. 427 - 442
Date:	2012
Publisher:	ASOCIACION PALEONTOLOGICA ARGENTINA
Place of Publication:	BUENOS AIRES
ISSN:	1851-8044
Language:	Spanish
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HUMAN OCCUPATION; MENDOZA; POLLEN; RECORD; ARIDITY Multiple languages Paleontology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47639