Late Younger Dryas and early Holocene palaeoenvironments in the Skagerrak, eastern North Atlantic: A multiproxy study
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Erbs-Hansen, Dorthe Reng; Knudsen , K.L.; Gary, Anthony C.; Jansen, Eystein; Gyllencreutz, Richard; Scao, Vincent; Lambeck, Kurt
Description
A high-resolution study of palaeoenvironmental changes through the late Younger Dryas and early Holocene in the Skagerrak, the eastern North Atlantic, is based on multiproxy analyses of core MD99-2286 combined with palaeowater depth modelling for the area. The late Younger Dryas was characterized by a cold ice-distal benthic foraminiferal fauna. After the transition to the Preboreal (c. 11650cal. a BP) this fauna was replaced by a Cassidulina neoteretis-dominated fauna, indicating the influence...[Show more]
dc.contributor.author | Erbs-Hansen, Dorthe Reng | |
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dc.contributor.author | Knudsen , K.L. | |
dc.contributor.author | Gary, Anthony C. | |
dc.contributor.author | Jansen, Eystein | |
dc.contributor.author | Gyllencreutz, Richard | |
dc.contributor.author | Scao, Vincent | |
dc.contributor.author | Lambeck, Kurt | |
dc.date.accessioned | 2015-12-10T23:35:05Z | |
dc.identifier.issn | 0300-9483 | |
dc.identifier.uri | http://hdl.handle.net/1885/69704 | |
dc.description.abstract | A high-resolution study of palaeoenvironmental changes through the late Younger Dryas and early Holocene in the Skagerrak, the eastern North Atlantic, is based on multiproxy analyses of core MD99-2286 combined with palaeowater depth modelling for the area. The late Younger Dryas was characterized by a cold ice-distal benthic foraminiferal fauna. After the transition to the Preboreal (c. 11650cal. a BP) this fauna was replaced by a Cassidulina neoteretis-dominated fauna, indicating the influence of chilled Atlantic Water at the sea floor. Persisting relatively cold bottom-water conditions until c. 10300cal. a BP are presumably a result of an outflow of glacial meltwater from the Baltic area across south-central Sweden, which led to a strong stratification of the water column at MD99-2286, as also indicated by C. neoteretis. A short-term peak in the C/N ratio at c. 10200cal. a BP is suggested to indicate input of terrestrial material, which may represent the drainage of an ice-dammed lake in southern Norway, the Glomma event. After the last drainage route across south-central Sweden closed, c. 10300cal. a BP, the meltwater influence diminished, and the Skagerrak resembled a fjord with a stable inflow of waters from the North Atlantic through the Norwegian Trench and a gradual increase in boreal species. Full interglacial conditions were established at the sea floor from c. 9250cal. a BP. Subsequent warm stable conditions were interrupted by a short-term cooling around 8300-8200cal. a BP, representing the 8.2ka event. | |
dc.publisher | Taylor & Francis Group | |
dc.source | Boreas: an international journal of quaternary research | |
dc.subject | Keywords: benthic foraminifera; cold water; fjord; Holocene; inflow; meltwater; outflow; paleoenvironment; seafloor; stratification; water column; water depth; Younger Dryas; Atlantic Ocean; North Sea; Skagerrak; Cassidulina neoteretis | |
dc.title | Late Younger Dryas and early Holocene palaeoenvironments in the Skagerrak, eastern North Atlantic: A multiproxy study | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 40 | |
dc.date.issued | 2011 | |
local.identifier.absfor | 040404 - Geothermics and Radiometrics | |
local.identifier.absfor | 040406 - Magnetism and Palaeomagnetism | |
local.identifier.ariespublication | f2965xPUB2098 | |
local.type.status | Published Version | |
local.contributor.affiliation | Erbs-Hansen, Dorthe Reng, University of Aarhus | |
local.contributor.affiliation | Knudsen , K.L., University of Aarhus | |
local.contributor.affiliation | Gary, Anthony C., University of Utah | |
local.contributor.affiliation | Jansen, Eystein, University of Bergen | |
local.contributor.affiliation | Gyllencreutz, Richard, Stockholm University | |
local.contributor.affiliation | Scao, Vincent, University of Bergen | |
local.contributor.affiliation | Lambeck, Kurt, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 4 | |
local.bibliographicCitation.startpage | 660 | |
local.bibliographicCitation.lastpage | 680 | |
local.identifier.doi | 10.1111/j.1502-3885.2011.00205.x | |
local.identifier.absseo | 960307 - Effects of Climate Change and Variability on Australia (excl. Social Impacts) | |
local.identifier.absseo | 970104 - Expanding Knowledge in the Earth Sciences | |
dc.date.updated | 2016-02-24T08:22:06Z | |
local.identifier.scopusID | 2-s2.0-80053272478 | |
local.identifier.thomsonID | 000295291900008 | |
Collections | ANU Research Publications |
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