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| Bassetti, Maria-angela; Berne, Serge; Sicre, Marie-alexandrine; Dennielou, Bernard; Alonso, Yoann; Buscail, Roselyne; Jalali, Bassem; Hebert, Bertil; Menniti, Christophe. |
| Expanded marine Holocene archives are relatively scarce in the Mediterranean Sea because most of the sediments were trapped in catchment areas during this period. Mud belts are the most suitable targets to access expanded Holocene records. These sedimentary bodies represent excellent archives for the study of sea-land interactions and notably the impact of the hydrological activity on sediment accumulation. We retrieved a 7.2m long sediment core from the Rhone mud belt in the Gulf of Lions in an area where the average accumulation rate is ca. 0.70 m 1000 yr(-1). This core thus provides a continuous and high-resolution record of the last 10 ka cal BP. A multiproxy dataset (XRF core scan, C-14 dates, grain size and organic-matter analysis) combined with... |
| Tipo: Text |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00352/46360/45981.pdf |
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| Jalali, Bassem; Sicre, Marie-alexandrine; Azuara, Julien; Pellichero, Violaine; Combourieu-nebout, Nathalie. |
| The 4.2 ka BP event, spanning from ca 4200 to 3900 cal BP, has been documented in numerous archaeological data and continental archives across the Northern Hemisphere as an abrupt shift to dry and cold climate. However, data on synchronous ocean circulation changes are notably lacking, thus preventing us from getting a full insight into the physical mechanisms responsible for this climate deterioration. Here, we present two high-resolution (5–20 years) sea surface temperature (SST) records from the subpolar gyre and off north Iceland in the vicinity of the polar front obtained from alkenone paleo-thermometry and compare them with proxy data from the western Mediterranean Sea to gain information on regional temperature and precipitation patterns. Our... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00488/60005/63242.pdf |
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