(Table S1) Age determination of sediment core MD99-2251
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2006
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| _version_ | 1867170042481737728 |
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| author | Ellison, Christopher RW Chapman, Mark R Hall, Ian R |
| author_facet | Ellison, Christopher RW Chapman, Mark R Hall, Ian R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Evidence from a North Atlantic deep-sea sediment core reveals that the largest climatic perturbation in our present interglacial, the 8200-year event, is marked by two distinct cooling events in the subpolar North Atlantic at 8490 and 8290 years ago. An associated reduction in deep flow speed provides evidence of a significant change to a major downwelling limb of the Atlantic meridional overturning circulation. The existence of a distinct surface freshening signal during these events strongly suggests that the sequenced surface and deep ocean changes were forced by pulsed meltwater outbursts from a multistep final drainage of the proglacial lakes associated with the decaying Laurentide Ice Sheet margin. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_829501 |
| institution | PANGAEA |
| language | en |
| publishDate | 2006 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table S1) Age determination of sediment core MD99-2251 Ellison, Christopher RW Chapman, Mark R Hall, Ian R Age, 14C AMS; Age, calibrated; Age, dated; Age, dated, standard deviation; Age, maximum/old; Age, minimum/young; Calendar age; CALYPSO; Calypso Corer; DEPTH, sediment/rock; IMAGES V; Laboratory code/label; Marion Dufresne (1995); MD114; MD99-2251; Rockall Evidence from a North Atlantic deep-sea sediment core reveals that the largest climatic perturbation in our present interglacial, the 8200-year event, is marked by two distinct cooling events in the subpolar North Atlantic at 8490 and 8290 years ago. An associated reduction in deep flow speed provides evidence of a significant change to a major downwelling limb of the Atlantic meridional overturning circulation. The existence of a distinct surface freshening signal during these events strongly suggests that the sequenced surface and deep ocean changes were forced by pulsed meltwater outbursts from a multistep final drainage of the proglacial lakes associated with the decaying Laurentide Ice Sheet margin. |
| title | (Table S1) Age determination of sediment core MD99-2251 |
| topic | Age, 14C AMS; Age, calibrated; Age, dated; Age, dated, standard deviation; Age, maximum/old; Age, minimum/young; Calendar age; CALYPSO; Calypso Corer; DEPTH, sediment/rock; IMAGES V; Laboratory code/label; Marion Dufresne (1995); MD114; MD99-2251; Rockall |
| url | https://doi.org/10.1594/PANGAEA.829501 |