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
Data
| 1 Lab label | 2 Depth sed [m] | 3 Age dated [ka] | 4 Age dated std dev [±] | 5 Cal age [ka BP] | 6 Age min [ka] | 7 Age max [ka] |
|---|---|---|---|---|---|---|
| SUERC-3063 | 0.00 | 0.991 | 0.021 | 0.558 | 0.536 | 0.619 |
| SUERC-3067 | 0.70 | 1.006 | 0.018 | 0.592 | 0.547 | 0.623 |
| SUERC-3068 | 1.40 | 1.403 | 0.021 | 0.938 | 0.910 | 0.977 |
| SUERC-3069 | 2.30 | 1.666 | 0.024 | 1.234 | 1.176 | 1.269 |
| SUERC-5178 | 2.80 | 1.888 | 0.025 | 1.416 | 1.366 | 1.501 |
| SUERC-5179 | 3.54 | 2.094 | 0.023 | 1.683 | 1.599 | 1.723 |
| SUERC-3070 | 4.10 | 2.469 | 0.024 | 2.113 | 2.039 | 2.171 |
| SUERC-5182 | 4.84 | 2.576 | 0.025 | 2.286 | 2.172 | 2.313 |
| SUERC-3071 | 5.60 | 2.995 | 0.024 | 2.750 | 2.720 | 2.803 |
| SUERC-5183 | 6.50 | 3.615 | 0.030 | 3.487 | 3.433 | 3.584 |
| SUERC-3072 | 7.40 | 4.100 | 0.022 | 4.139 | 4.078 | 4.216 |
| SUERC-5184 | 8.00 | 4.386 | 0.022 | 4.517 | 4.437 | 4.578 |
| SUERC-3076 | 8.60 | 4.864 | 0.022 | 5.218 | 5.066 | 5.263 |
| SUERC-5185 | 9.10 | 5.109 | 0.024 | 5.466 | 5.431 | 5.559 |
| SUERC-5186 | 9.44 | 5.385 | 0.028 | 5.734 | 5.669 | 5.844 |
| SUERC-3079 | 10.34 | 6.341 | 0.031 | 6.786 | 6.719 | 6.870 |
| SUERC-5188 | 10.94 | 6.567 | 0.027 | 7.087 | 6.998 | 7.159 |
| SUERC-5189 | 11.68 | 7.340 | 0.026 | 7.785 | 7.729 | 7.846 |
| SUERC-5192 | 12.20 | 7.815 | 0.035 | 8.293 | 8.184 | 8.343 |
| SUERC-3082 | 12.84 | 8.474 | 0.027 | 8.947 | 8.834 | 9.288 |
| SUERC-3086 | 13.64 | 8.868 | 0.030 | 9.440 | 9.076 | 9.767 |
| SUERC-3087 | 14.74 | 9.365 | 0.034 | 10.040 | 9.812 | 10.291 |
| SUERC-5193 | 15.34 | 9.737 | 0.031 | 10.333 | 10.256 | 11.101 |