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A Younger Dryas re-advance of local glaciers in north Greenland

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A Younger Dryas re-advance of local glaciers in north Greenland. / Larsen, Nicolaj K.; Funder, Svend; Linge, Henriette; Möller, Per; Schomacker, Anders; Fabel, Derek; Xu, Sheng; Kjær, Kurt H.

In: Quaternary Science Reviews, Vol. 147, 01.09.2016, p. 47-58.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Larsen, NK, Funder, S, Linge, H, Möller, P, Schomacker, A, Fabel, D, Xu, S & Kjær, KH 2016, 'A Younger Dryas re-advance of local glaciers in north Greenland', Quaternary Science Reviews, vol. 147, pp. 47-58. https://doi.org/10.1016/j.quascirev.2015.10.036

APA

Larsen, N. K., Funder, S., Linge, H., Möller, P., Schomacker, A., Fabel, D., Xu, S., & Kjær, K. H. (2016). A Younger Dryas re-advance of local glaciers in north Greenland. Quaternary Science Reviews, 147, 47-58. https://doi.org/10.1016/j.quascirev.2015.10.036

CBE

Larsen NK, Funder S, Linge H, Möller P, Schomacker A, Fabel D, Xu S, Kjær KH. 2016. A Younger Dryas re-advance of local glaciers in north Greenland. Quaternary Science Reviews. 147:47-58. https://doi.org/10.1016/j.quascirev.2015.10.036

MLA

Vancouver

Larsen NK, Funder S, Linge H, Möller P, Schomacker A, Fabel D et al. A Younger Dryas re-advance of local glaciers in north Greenland. Quaternary Science Reviews. 2016 Sep 1;147:47-58. https://doi.org/10.1016/j.quascirev.2015.10.036

Author

Larsen, Nicolaj K. ; Funder, Svend ; Linge, Henriette ; Möller, Per ; Schomacker, Anders ; Fabel, Derek ; Xu, Sheng ; Kjær, Kurt H. / A Younger Dryas re-advance of local glaciers in north Greenland. In: Quaternary Science Reviews. 2016 ; Vol. 147. pp. 47-58.

Bibtex

@article{4d8db3773e1e477b9b320db92b732e9a,
title = "A Younger Dryas re-advance of local glaciers in north Greenland",
abstract = "The Younger Dryas (YD) is a well-constrained cold event from 12,900 to 11,700 years ago but it remains unclear how the cooling and subsequent abrupt warming recorded in ice cores was translated into ice margin fluctuations in Greenland. Here we present 10Be surface exposure ages from three moraines in front of local glaciers on a 50 km stretch along the north coast of Greenland, facing the Arctic Ocean. Ten ages range from 11.6 ± 0.5 to 27.2 ± 0.9 ka with a mean age of 12.5 ± 0.7 ka after exclusion of two outliers. We consider this to be a minimum age for the abandonment of the moraines. The ages of the moraines are furthermore constrained using Optically Stimulated Luminescence (OSL) dating of epishelf sediments, which were deposited prior to the ice advance that formed the moraines, yielding a maximum age of 12.4 ± 0.6 ka, and bracketing the formation and subsequent abandonment of the moraines to within the interval 11.8-13.0 ka ago. This is the first time a synchronous YD glacier advance and subsequent retreat has been recorded for several independent glaciers in Greenland. In most other areas, there is no evidence for re-advance and glaciers were retreating during YD. We explain the different behaviour of the glaciers in northernmost Greenland as a function of their remoteness from the Atlantic Meridional Overturning Circulation (AMOC), which in other areas has been held responsible for modifying the YD drop in temperatures.",
keywords = "Greenland ice sheet, Ice marginal fluctuations, Surface exposure dating, Younger Dryas",
author = "Larsen, {Nicolaj K.} and Svend Funder and Henriette Linge and Per M{\"o}ller and Anders Schomacker and Derek Fabel and Sheng Xu and Kj{\ae}r, {Kurt H.}",
year = "2016",
month = sep,
day = "1",
doi = "10.1016/j.quascirev.2015.10.036",
language = "English",
volume = "147",
pages = "47--58",
journal = "Quaternary Science Reviews",
issn = "0277-3791",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - A Younger Dryas re-advance of local glaciers in north Greenland

AU - Larsen, Nicolaj K.

AU - Funder, Svend

AU - Linge, Henriette

AU - Möller, Per

AU - Schomacker, Anders

AU - Fabel, Derek

AU - Xu, Sheng

AU - Kjær, Kurt H.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - The Younger Dryas (YD) is a well-constrained cold event from 12,900 to 11,700 years ago but it remains unclear how the cooling and subsequent abrupt warming recorded in ice cores was translated into ice margin fluctuations in Greenland. Here we present 10Be surface exposure ages from three moraines in front of local glaciers on a 50 km stretch along the north coast of Greenland, facing the Arctic Ocean. Ten ages range from 11.6 ± 0.5 to 27.2 ± 0.9 ka with a mean age of 12.5 ± 0.7 ka after exclusion of two outliers. We consider this to be a minimum age for the abandonment of the moraines. The ages of the moraines are furthermore constrained using Optically Stimulated Luminescence (OSL) dating of epishelf sediments, which were deposited prior to the ice advance that formed the moraines, yielding a maximum age of 12.4 ± 0.6 ka, and bracketing the formation and subsequent abandonment of the moraines to within the interval 11.8-13.0 ka ago. This is the first time a synchronous YD glacier advance and subsequent retreat has been recorded for several independent glaciers in Greenland. In most other areas, there is no evidence for re-advance and glaciers were retreating during YD. We explain the different behaviour of the glaciers in northernmost Greenland as a function of their remoteness from the Atlantic Meridional Overturning Circulation (AMOC), which in other areas has been held responsible for modifying the YD drop in temperatures.

AB - The Younger Dryas (YD) is a well-constrained cold event from 12,900 to 11,700 years ago but it remains unclear how the cooling and subsequent abrupt warming recorded in ice cores was translated into ice margin fluctuations in Greenland. Here we present 10Be surface exposure ages from three moraines in front of local glaciers on a 50 km stretch along the north coast of Greenland, facing the Arctic Ocean. Ten ages range from 11.6 ± 0.5 to 27.2 ± 0.9 ka with a mean age of 12.5 ± 0.7 ka after exclusion of two outliers. We consider this to be a minimum age for the abandonment of the moraines. The ages of the moraines are furthermore constrained using Optically Stimulated Luminescence (OSL) dating of epishelf sediments, which were deposited prior to the ice advance that formed the moraines, yielding a maximum age of 12.4 ± 0.6 ka, and bracketing the formation and subsequent abandonment of the moraines to within the interval 11.8-13.0 ka ago. This is the first time a synchronous YD glacier advance and subsequent retreat has been recorded for several independent glaciers in Greenland. In most other areas, there is no evidence for re-advance and glaciers were retreating during YD. We explain the different behaviour of the glaciers in northernmost Greenland as a function of their remoteness from the Atlantic Meridional Overturning Circulation (AMOC), which in other areas has been held responsible for modifying the YD drop in temperatures.

KW - Greenland ice sheet

KW - Ice marginal fluctuations

KW - Surface exposure dating

KW - Younger Dryas

U2 - 10.1016/j.quascirev.2015.10.036

DO - 10.1016/j.quascirev.2015.10.036

M3 - Journal article

AN - SCOPUS:84947570235

VL - 147

SP - 47

EP - 58

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

SN - 0277-3791

ER -