Deglaciation and meltwater events in Hudson Strait and the Eastern Canadian Arctic

Stable isotope measurements on molluses from raised marine deposits, and on foraminifera in a piston core, define a series of light isotope events. A major event is14C dated at ca. 10.3 ka and is correlated with a marked isotopic excursion in HU77-021-156. This event is followed by a dramatic rise i...

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Bibliographic Details
Published in:Geo-Marine Letters
Main Authors: Andrews, J. T., Matthews, R. K., Osterman, L. E., Miller, G. H., Hillaire-Marcel, C., Williams, K. M.
Format: Article in Journal/Newspaper
Language:English
Published: Springer 1987
Subjects:
Arctic
Hudson
Hudson Strait
Foraminifera*
Online Access:https://oceanrep.geomar.de/id/eprint/32001/
https://oceanrep.geomar.de/id/eprint/32001/1/art_10.1007_BF02310462.pdf
https://doi.org/10.1007/BF02310462
Description
Summary:Stable isotope measurements on molluses from raised marine deposits, and on foraminifera in a piston core, define a series of light isotope events. A major event is14C dated at ca. 10.3 ka and is correlated with a marked isotopic excursion in HU77-021-156. This event is followed by a dramatic rise in diatom and, slightly later, in benthic foraminiferal abundances. Molluses record another light event around 8 ka. Major fluctuations in both δ18O and δ13C around 10.3 ka suggests that the Hudson Strait ice stream may have responded to the Younger Dryas climatic oscillation.

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