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Climate on the Southern Black Sea coast during the Holocene: implications from the Sofular Cave record

Göktürk , O.M., Fleitmann, D., Badertscher, S., Cheng, H., Edwards, R.L., Leuenberger, M., Frankhauser, A., Tüysüz , O. and Kramers, J. (2011) Climate on the Southern Black Sea coast during the Holocene: implications from the Sofular Cave record. Quaternary Science Reviews, 30 (19-20). pp. 2433-2445. ISSN 0277-3791

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To link to this item DOI: 10.1016/j.quascirev.2011.05.007


We present the updated Holocene section of the Sofular Cave record from the southernBlackSeacoast (northern Turkey); an area with considerably different present-day climate compared to that of the neighboring Eastern Mediterranean region. Stalagmite δ13C, growth rates and initial (234U/238U) ratios provide information about hydrological changes above the cave; and prove to be more useful than δ18O for deciphering Holocene climatic variations. Between ∼9.6 and 5.4 ka BP (despite a pause from ∼8.4 to 7.8 ka BP), the Sofular record indicates a remarkable increase in rainfall amount and intensity, in line with other paleoclimate studies in the Eastern Mediterranean. During that period, enhanced summertime insolation either produced much stronger storms in the following fall and winter through high sea surface temperatures, or it invoked a regional summer monsoon circulation and rainfall. We suggest that one or both of these climatic mechanisms led to a coupling of the BlackSea and the Mediterranean rainfall regimes at that time, which can explain the observed proxy signals. However, there are discrepancies among the Eastern Mediterranean records in terms of the timing of this wet period; implying that changes were probably not always occurring through the same mechanism. Nevertheless, the Sofular Cave record does provide hints and bring about new questions about the connection between regional and large scale climates, highlighting the need for a more extensive network of high quality paleoclimate records to better understand Holoceneclimate.

Item Type:Article
Divisions:Science > School of Archaeology, Geography and Environmental Science > Scientific Archaeology
Science > School of Archaeology, Geography and Environmental Science > Department of Archaeology
ID Code:29549

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