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| Kallel, N; Paterne, M; Duplessy, Jc; Vergnaudgrazzini, C; Pujol, C; Labeyrie, L; Arnold, M; Fontugne, M; Pierre, C. |
| Sea-surface temperature (SST) estimates for the last 10,000 years have been derived from foraminiferal fauna variations in ten cores from the Mediterranean Sea. For the eastern cores, modern analogs of fossil assemblages are found in the eastern Mediterranean Sea. In the Alboran and Tyrrhenian Seas, the bet analogs originate from modern fauna located either in the western Mediterranean Sea or in the North Atlantic Ocean. During the last sapropel event, centred at about 8,000 years B.P., SSTs were similar to present in the eastern basin, whereas they were colder than today by about 1.5 degrees C in the Alboran Sea and 2.5 degrees C in the Tyrrhenian Sea. Oxygen isotope measurements agree with ecological studies to show that Globigerina bulloides and... |
| Tipo: Text |
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| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00093/20427/18094.pdf |
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| Labeyrie, L D; Kallel, N; Arnold, M; Juillet-leclerc, A; Maitre, F; Duplessy, J-c; Shackleton, N-j. |
| The understanding of the processes involved in large climatic changes as the last glacial/interglacial cycle asks for detailed descriptions of the changes which occurred during the last deglaciation, the only transition which may be dated accurately. In that matter, the super(14)C Accelerator Mass Spectrometry (AMS) allows unprecedented sensitivity on the dating of the foraminifera which are used for isotopic analysis. The partial differential super(13)C of the benthic foraminifera is a good indicator of the changes in bottom water ventilation. We present here a comparison of the changes in the oxygen and carbon isotopic records of benthic and planktonic foraminifera in 2 cores from the north west slope of the Pacific Ocean, along the Japan continental... |
| Tipo: Text |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00268/37945/36026.pdf |
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