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| Bahr, Andre; Lamy, Frank; Arz, Helge W.; Major, Candace; Kwiecien, Olga; Wefer, Gerold. |
| [1] New Mg/Ca, Sr/Ca, and published stable oxygen isotope and Sr-87/(86) Sr data obtained on ostracods from gravity cores located on the northwestern Black Sea slope were used to infer changes in the Black Sea hydrology and water chemistry for the period between 30 to 8 ka B. P. ( calibrated radiocarbon years). The period prior to 16.5 ka B. P. was characterized by stable conditions in all records until a distinct drop in delta O-18 values combined with a sharp increase in Sr-87/(86) Sr occurred between 16.5 and 14.8 ka B. P. This event is attributed to an increased runoff from the northern drainage area of the Black Sea between Heinrich Event 1 and the onset of the Bolling warm period. While the Mg/Ca and Sr/Ca records remained rather unaffected by this... |
| Tipo: Text |
Palavras-chave: Black Sea; Ostracods; Trace elements. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00209/31989/30432.pdf |
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| Major, Candace; Ryan, William; Lericolais, Gilles; Hajdas, Irka. |
| New cores from the upper continental slope off Romania in the western Black Sea provide a continuous, high-resolution record of sedimentation rates, clay mineralogy, calcium carbonate content, and stable isotopes of oxygen and carbon over the last 20000 yr in the western Black Sea. These records all indicate major changes occurring at 15 000, 12 800, 8400, and 7 100 yr before present. These results are interpreted to reflect an evolving balance between water supplied by melting glacial ice and other river runoff and water removed by evaporation and outflow. The marked retreat of the Fennoscandian and Alpine ice between 15 000 and 14 000 yr is recorded by an increase in clays indicative of northern provenance in Black Sea sediments. A short return toward... |
| Tipo: Text |
Palavras-chave: Clay mineralogy; Stable isotopes; Sapropel; Younger Dryas; Deglaciation. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-473.pdf |
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