Heinrich event 4 characterized by terrestrial proxies in southwestern Europe

Type Article
Date 2013-05-07
Language English
Author(s) Lopez-Garcia J. M.1, Blain H. -A.2, 3, Bennasar M.2, 3, Sanz M.4, Daura J.4
Affiliation(s) 1 : Univ Ferrara, Grp Ric Paleobiol & Preistoria, Dipartamento Studi Umanist, I-44121 Ferrara, Italy.
2 : Inst Catala Paleoecol Humana & Evolucio Social, IPHES, Tarragona 43003, Spain.
3 : Univ Rovira & Virgili, Area Prehist, Tarragona 43002, Spain.
4 : Univ Barcelona, Grp Recerca Quaternari, SERP, Dept Prehist H Antiga & Arqueol, Barcelona 08001, Spain.
Source Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2013-05-07 , Vol. 9 , N. 3 , P. 1053-1064
DOI 10.5194/cp-9-1053-2013
WOS© Times Cited 18
Abstract Heinrich event 4 (H4) is well documented in the North Atlantic Ocean as a cooling event that occurred between 39 and 40 Ka. Deep-sea cores around the Iberian Peninsula coastline have been analysed to characterize the H4 event, but there are no data on the terrestrial response to this event. Here we present for the first time an analysis of terrestrial proxies for characterizing the H4 event, using the small-vertebrate assemblage (comprising small mammals, squamates and amphibians) from Terrassa Riera dels Canyars, an archaeo-palaeontological deposit located on the seaboard of the northeastern Iberian Peninsula. This assemblage shows that the H4 event is characterized in northeastern Iberia by harsher and drier terrestrial conditions than today. Our results were compared with other proxies such as pollen, charcoal, phytolith, avifauna and large-mammal data available for this site, as well as with the general H4 event fluctuations and with other sites where H4 and the previous and subsequent Heinrich events (H5 and H3) have been detected in the Mediterranean and Atlantic regions of the Iberian Peninsula. We conclude that the terrestrial proxies follow the same patterns as the climatic and environmental conditions detected by the deep-sea cores at the Iberian margins.
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