Reference : Smectite composition as a tracer of deep circulation: the case of the Northern North ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/17015
Smectite composition as a tracer of deep circulation: the case of the Northern North Atlantic
English
Fagel, Nathalie mailto [Université de Liège - ULg > Département de géologie > Argiles, géochimie et environnements sédimentaires >]
Robert, Christian [ > > ]
Preda, Michel [> > > >]
Thorez, Jacques [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
2001
Marine Geology
Elsevier Science
172
3-4
309-330
Yes (verified by ORBi)
International
0025-3227
Amsterdam
The Netherlands
[en] clays ; smectite composition ; sediment ; deep paleocirculation ; Late deglacial ; Northern North Atlantic
[en] The link between smectite composition in sediments from the northern North Atlantic and Labrador Sea, and deep circulation is being further investigated through detailed studies of the X-ray pattern of smectites and cation saturations. This allows clear distinction of dominant terrigenous sources associated to the main components of the modern Western Boundary Undercurrent. Time variations of smectite characteristics in two piston cores from the inlet and outlet of the Western Boundary Undercurrent gyre in the Labrador Sea indicate: (1) a more southern circulation of North East Atlantic Deep Water during the Late Glacial; (2) a step by step transition to the modern pattern of deep circulation during the Late Glacial/Holocene transition, with intensification of North East Atlantic Deep Water and Davis Strait Overflow; (3) an expansion of Davis Strait Overflow and Labrador Sea Water circulation in relation to ice surges and deposition of detrital layers; (4) an intensified circulation of North East Atlantic Deep Water during the Younger Dryas; and (5) a very recent increased influence of Denmark Strait Overflow Water beginning between 4.4 and <1 kyr. (C) 2001 Elsevier Science B.V. All rights reserved.
Researchers
http://hdl.handle.net/2268/17015
http://www.elsevier.com/wps/find/journaldescription.cws_home/503350/description#description
The authors acknowledge Elservier for their authorization.

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