the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
The 8.2 ka cooling event related to extensive melting of the Greenland Ice Sheet
Abstract. The North Atlantic cooling event at 8200 calibrated (cal) yr BP has been attributed to effects of an extensive freshwater discharge from the Hudson Strait (Barber et al., 1999; Leverington et al., 2002). Here we present sedimentary records from 5 cores collected from the Greenland shelf. These document high magnetic susceptibility (MS) values related to massive silt deposition, which is ascribed to large-scale melt water outflow from the Greenland Ice Sheet (GIS) spanning the centuries before 8200 cal yr BP and ending after 8000 cal yr BP. XRF trace element composition and foraminiferal fauna's provide additional evidence for excessive melt-water production, which can be related to early Holocene warming of the circum-Arctic region including Greenland. Planktonic foraminiferal fauna data from the southern Davis Strait indicate the widespread presence of negative salinity anomalies reaching far offshore Greenland. Significant freshening of surface waters around Greenland prior to 8200 cal yr BP must have led to a slowdown of the deep-water formation which thus implies that significant melting of the GIS should be taken into account when discussing driving mechanisms behind the 8200 cal yr BP cooling event.
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SC S535: 'Chronology issues', Maarten Blaauw, 30 Oct 2008
- AC S647: 'Author comments in respond to the intera', Hanne Ebbesen, 16 Dec 2008
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RC S591: 'Review', Claude Hillaire-Marcel, 02 Dec 2008
- AC S649: 'author comment', Hanne Ebbesen, 16 Dec 2008
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SC S626: 'Variability and events at 8.2k', Eric W. Wolff, 05 Dec 2008
- AC S708: 'comment to Wolff', Hanne Ebbesen, 15 Jan 2009
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RC S643: 'review ', Anonymous Referee #2, 15 Dec 2008
- AC S710: 'comment to an anonymous Referee ', Hanne Ebbesen, 15 Jan 2009
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EC S651: 'editor's comment', Valérie Masson-Delmotte, 16 Dec 2008
- AC S712: 'comment to the Editor', Hanne Ebbesen, 15 Jan 2009
-
SC S535: 'Chronology issues', Maarten Blaauw, 30 Oct 2008
- AC S647: 'Author comments in respond to the intera', Hanne Ebbesen, 16 Dec 2008
-
RC S591: 'Review', Claude Hillaire-Marcel, 02 Dec 2008
- AC S649: 'author comment', Hanne Ebbesen, 16 Dec 2008
-
SC S626: 'Variability and events at 8.2k', Eric W. Wolff, 05 Dec 2008
- AC S708: 'comment to Wolff', Hanne Ebbesen, 15 Jan 2009
-
RC S643: 'review ', Anonymous Referee #2, 15 Dec 2008
- AC S710: 'comment to an anonymous Referee ', Hanne Ebbesen, 15 Jan 2009
-
EC S651: 'editor's comment', Valérie Masson-Delmotte, 16 Dec 2008
- AC S712: 'comment to the Editor', Hanne Ebbesen, 15 Jan 2009
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Cited
3 citations as recorded by crossref.
- Beach Ridge Geomorphology at Cape Grinnell, northern Greenland: A Less Icy Arctic in the Mid-Holocene O. Mason 10.1080/00167223.2010.10669515
- Archeoseismicity and environmental crises at the Sialk Mounds, Central Iranian Plateau, since the Early Neolithic M. Berberian et al. 10.1016/j.jas.2012.04.001
- Dicle Nehri’nin Genç Dryas ve Holosen’deki sıcak-soğuk iklim döngülerine tepkisi U. Doğan 10.46453/jader.1523018