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Multiple oscillations during the Lateglacial as recorded in a multi-proxy, high-resolution record of the Moervaart palaeolake (NW Belgium)

Bos, Johanna A. A. and De Smedt, Philippe and Demiddele, Hendrik and Hoek, Wim Z. and Langohr, Roger and Marcelino, Vera and Van Asch, Nelleke and Van Damme, Dirk and Van der Meeren, Thijs and Verniers, Jacques and Boeckx, Pascal and Boudin, Mathieu and Court-Piton, Mona and Finke, Peter and Gelorini, Vanessa and Gobert, Stefan and Heiri, Oliver and Martens, Koen and Mostaert, Frank and Serbruyns, Lynn and Van Strydonck, Mark and Crombe, Philippe. (2017) Multiple oscillations during the Lateglacial as recorded in a multi-proxy, high-resolution record of the Moervaart palaeolake (NW Belgium). Quaternary Science Reviews, 162. pp. 26-41.

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Official URL: https://edoc.unibas.ch/67690/

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Abstract

This paper presents the results of multi-disciplinary research carried out on the deposits of Moervaart depression, NW Belgium, one of the largest palaeolakes (similar to 25 km(2)) that existed during the Lateglacial interstadial in NW Europe. The multi-proxy study, including physical (organic matter and calcium carbonate, magnetic susceptibility, micromorphological), botanical (pollen, macrofossils, diatoms), zoological (ostracods, molluscs, chironomids) and chemical analyses (stable carbon and oxygen isotopes) has resulted in a detailed reconstruction of the Lateglacial landscape as well of the local conditions that prevailed in the lake itself. A chronology of the record was provided by radiocarbon dating and comparison with radiocarbon dates of the nearby Rieme site. These yielded a good match with the regional biostratigraphy. During the Lateglacial, vegetation and geomorphology of the landscape in general changed from a tundra landscape to a boreal forest. The vegetation development, however, was interrupted by a number of cold reversals. Three centennial-scale cold oscillations are present in the record: 1) the so-called Older Dryas corresponding to GI-1d in the Greenland ice-cores, 2) a short and pronounced cold event during the early Allerod, which could be correlated to GI-1c2 and 3) a cooling event during the late Allerad probably corresponding to the Intra Allerod Cold Period (IACP) or GI-1b. The latter most likely was responsible for the disappearance of the Moervaart palaeolake. (C) 2017 Elsevier Ltd. All rights reserved.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Natur- Landschafts- und Umweltschutz > Geoökologie (Heiri)
UniBasel Contributors:Heiri, Oliver
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:PERGAMON-ELSEVIER SCIENCE LTD
ISSN:0277-3791
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:19 Feb 2019 16:41
Deposited On:19 Feb 2019 16:41

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