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| Rashid, H.; Saint-ange, Francky; Barber, D. C.; Smith, M. E.; Devalia, N.. |
| Heinrich iceberg-rafting events 1 and 2 (H1 and H2) in the Labrador Sea are identified by their typical nepheloid-flow deposit sedimentary structure, high bulk carbonate, increase in iceberg-rafted detritus (IRD), and depletion of delta O-18 in the surface-dwelling foraminifer, Neogloboquadrina pachyderma (s). H-layers in this region have sedimentological characteristics different than those in the North Atlantic, and consist of IRD interspersed in pelagic sediments. High resolution C-14-AMS dates allowed us to delineate the leads and lags in instability between different ice-streams of the former Laurentide ice-sheet (LIS). Our data suggest that the discharge from the Hudson Strait ice-stream was followed by Cumberland Sound ice-sheet during H1 and H2.... |
| Tipo: Text |
Palavras-chave: Heinrich iceberg-rafting; Radiogenic isotopes; Cumberland sound ice-shelf; Hudson Strait ice-stream; Trinity Trough ice-stream. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00265/37641/36841.pdf |
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