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Anatomy of Labrador Sea Heinrich layers ArchiMer
Hesse, Reinhard; Khodabakhsh, Saeed.
Heinrich layers (H-layers) are distinct, decimetre to centimetre thick layers of ice-rafted debris (IRD) that were deposited in the North Atlantic during the Late and middle Pleistocene. H-layers (H-layers) are characterized by high detrital carbonate and low foraminifera contents. In the Labrador Sea, H-layers reach metre thickness in some proximal core sites near the iceberg source of the Hudson Strait ice stream and show five distinct depositional facies involving sediment lofting and low-density turbidity currents as sediment delivery processes besides ice rafting. Thick massive ice-rafted layers (type I H-layers) occur in the most proximal parts of H-layer 3 and older H-layers. Within 300 km distance from the assumed Hudson Strait ice stream terminus,...
Tipo: Text Palavras-chave: Heinrich layers; Labrador Sea; Ice rafting; Sediment lofting; Turbidity currents; Ice-proximal environments.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00341/45214/44639.pdf
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