Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): (Table S1) Age determination of sediment core MD99-2251 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.829501, Supplement to: Ellison, CRW et al. (2006): Surface and deep ocean interactions during the Cold Climate Event 8200 years ago. Science, 312(5782), 1929-1932, https://doi.org/10.1126/science.1127213
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Abstract:
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.
Coverage:
Latitude: 57.447833 * Longitude: -27.907833
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 15.34 m
Event(s):
MD99-2251 * Latitude: 57.447833 * Longitude: -27.907833 * Date/Time: 1999-08-01T00:00:00 * Elevation: -2620.0 m * Recovery: 36.58 m * Location: Rockall * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Laboratory code/label | Lab label | Ellison, Christopher RW | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Age, dated | Age dated | ka | Ellison, Christopher RW | Age, 14C AMS | |
| 4 | Age, dated standard deviation | Age dated std dev | ± | Ellison, Christopher RW | Age, 14C AMS | 1 sigma |
| 5 | Calendar age | Cal age | ka BP | Ellison, Christopher RW | Age, calibrated | |
| 6 | Age, minimum/young | Age min | ka | Ellison, Christopher RW | Age, calibrated | 2 sigma |
| 7 | Age, maximum/old | Age max | ka | Ellison, Christopher RW | Age, calibrated | 2 sigma |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
138 data points