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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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| Mercone, D; Thomson, J; Croudace, Iw; Siani, G; Paterne, M; Troelstra, S. |
| Slowly accumulated (<5 cm kyr(-1)) and rapidly accumulated (5-20 cm kyr(-1)) sediments have been compared to define the initiation and termination times of the most recent sapropel (S1) in the eastern Mediterranean Sea. The Ba/Al ratio has been employed as a more persistent index of productivity than C-org. Accelerator mass spectrometry radiocarbon dating of pelagic foraminifera indicates a maximum duration for increased Ba/Al levels in S1 from similar to 9500-6000 (uncorrected radiocarbon convention years B.P.) in the rapidly accumulated sediments and similar to 9500-5300 years B.P. in the slowly accumulated sediments. This difference is ascribed to bioturbation affecting the slaver accumulated S1 sediments. In the two most rapidly accumulated S1... |
| Tipo: Text |
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| Ano: 2000 |
URL: https://archimer.ifremer.fr/doc/00220/33127/31650.pdf |
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