(Table S1) Age determination of sediment core MD99-2251, supplement to: Ellison, Christopher RW; Chapman, Mark R; Hall, Ian R (2006): Surface and deep ocean interactions during the Cold Climate Event 8200 years ago. Science, 312(5782), 1929-1932

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 provid...

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Bibliographic Details
Main Authors: Ellison, Christopher RW, Chapman, Mark R, Hall, Ian R
Format: Dataset
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2006
Subjects:
Laboratory code/label
DEPTH, sediment/rock
Age, dated
Age, dated standard deviation
Calendar age
Age, minimum/young
Age, maximum/old
Calypso Corer
Age, 14C AMS
Age, calibrated
MD114
Marion Dufresne 1995
Ice Sheet
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.829501
https://doi.pangaea.de/10.1594/PANGAEA.829501
Description
Summary: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.

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