Seemingly divergent sea surface temperature proxy records in the central Mediterranean during the last deglaciation

Sea surface temperatures (SSTs) were reconstructed over the last 25 000 yr using alkenone paleothermometry and planktonic foraminifera assemblages from two cores of the central Mediterranean Sea: the MD04-2797 core (Siculo-Tunisian channel) and the MD90-917 core (South Adriatic Sea). Comparison of t...

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Bibliographic Details
Published inClimate of the past Vol. 9; no. 3; pp. 1375 - 1383
Main Authors Sicre, M.-A, Siani, G, Genty, D, Kallel, N, Essallami, L
Format Journal Article
LanguageEnglish
Published Katlenburg-Lindau Copernicus GmbH 28.06.2013
European Geosciences Union (EGU)
Copernicus Publications
Subjects
Comparative analysis
Earth Sciences
Environmental Sciences
Global Changes
Interglacial periods
Proxy
Sciences of the Universe
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Summary:Sea surface temperatures (SSTs) were reconstructed over the last 25 000 yr using alkenone paleothermometry and planktonic foraminifera assemblages from two cores of the central Mediterranean Sea: the MD04-2797 core (Siculo-Tunisian channel) and the MD90-917 core (South Adriatic Sea). Comparison of the centennial scale structure of the two temperature signals during the last deglaciation period reveals significant differences in timing and amplitude. We suggest that seasonal changes likely account for seemingly proxy record divergences during abrupt transitions from glacial to interglacial climates and for the apparent short duration of the Younger Dryas (YD) depicted by the alkenone time series, a feature that has already been stressed in earlier studies on the Mediterranean deglaciation.
ISSN:1814-9332
1814-9324
1814-9332
DOI:10.5194/cp-9-1375-2013