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Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet

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DOI

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Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet. / Rinterknecht, Vincent; Gorokhovich, Y; Schaefer, J; Caffee, M.

In: Journal of Quaternary Science, Vol. 24, No. 3, 03.2009, p. 270-278.

Research output: Contribution to journalArticle

Harvard

Rinterknecht, V, Gorokhovich, Y, Schaefer, J & Caffee, M 2009, 'Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet' Journal of Quaternary Science, vol. 24, no. 3, pp. 270-278. https://doi.org/10.1002/jqs.1226

APA

Rinterknecht, V., Gorokhovich, Y., Schaefer, J., & Caffee, M. (2009). Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet. Journal of Quaternary Science, 24(3), 270-278. https://doi.org/10.1002/jqs.1226

Vancouver

Rinterknecht V, Gorokhovich Y, Schaefer J, Caffee M. Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet. Journal of Quaternary Science. 2009 Mar;24(3):270-278. https://doi.org/10.1002/jqs.1226

Author

Rinterknecht, Vincent ; Gorokhovich, Y ; Schaefer, J ; Caffee, M. / Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet. In: Journal of Quaternary Science. 2009 ; Vol. 24, No. 3. pp. 270-278.

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@article{dcf4dda2cfa348b8ae40937f89543c04,
title = "Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet",
abstract = "The now acknowledged thinning of the Greenland Ice Sheet raises concerns about its potential contribution to future sea level rise. In order to appreciate the full extent of its contribution to sea level rise, reconstruction of the ice sheet's most recent last deglaciation could provide key information on the timing and the height of the ice sheet at a time of rapid climate readjustment. We measured 10Be concentrations in 12 samples collected along longitudinal and altitudinal transects from Sisimiut to within 10 km of the Isunguata Sermia Glacier ice margin on the western coast of Greenland. Along the longitudinal transect, we collected three perched boulders and two bedrocks. In addition, we sampled seven perched boulders along a vertical transect in a valley within 10 km of the Isunguata Sermia Glacier ice margin. Our pilot dataset constrains the height of the ice sheet during the Last Glacial Maximum (LGM) between 500 m and 840 m (including the 120 m relative sea level depression at the time of the LGM, 21 ka BP). From the transect we estimate the thinning of the ice sheet at the end of the deglaciation between 12.3 ± 1.5 10Be ka (n = 2) and 8.3 ± 1.2 10Be ka (n = 3) to be ∼6 cm a−1 over this time period. Direct dating of the retreat of the western margin of the Greenland Ice Sheet has the potential to better constrain the retreat rate of the ice margin, the thickness of the former ice sheet as well as its response to climate change. Copyright {\circledC} 2008 John Wiley & Sons,",
author = "Vincent Rinterknecht and Y Gorokhovich and J Schaefer and M Caffee",
year = "2009",
month = "3",
doi = "10.1002/jqs.1226",
language = "English",
volume = "24",
pages = "270--278",
journal = "Journal of Quaternary Science",
issn = "0267-8179",
publisher = "John Wiley & Sons, Ltd.",
number = "3",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Preliminary 10Be chronology for the last deglaciation of the western margin of the Greenland Ice Sheet

AU - Rinterknecht, Vincent

AU - Gorokhovich, Y

AU - Schaefer, J

AU - Caffee, M

PY - 2009/3

Y1 - 2009/3

N2 - The now acknowledged thinning of the Greenland Ice Sheet raises concerns about its potential contribution to future sea level rise. In order to appreciate the full extent of its contribution to sea level rise, reconstruction of the ice sheet's most recent last deglaciation could provide key information on the timing and the height of the ice sheet at a time of rapid climate readjustment. We measured 10Be concentrations in 12 samples collected along longitudinal and altitudinal transects from Sisimiut to within 10 km of the Isunguata Sermia Glacier ice margin on the western coast of Greenland. Along the longitudinal transect, we collected three perched boulders and two bedrocks. In addition, we sampled seven perched boulders along a vertical transect in a valley within 10 km of the Isunguata Sermia Glacier ice margin. Our pilot dataset constrains the height of the ice sheet during the Last Glacial Maximum (LGM) between 500 m and 840 m (including the 120 m relative sea level depression at the time of the LGM, 21 ka BP). From the transect we estimate the thinning of the ice sheet at the end of the deglaciation between 12.3 ± 1.5 10Be ka (n = 2) and 8.3 ± 1.2 10Be ka (n = 3) to be ∼6 cm a−1 over this time period. Direct dating of the retreat of the western margin of the Greenland Ice Sheet has the potential to better constrain the retreat rate of the ice margin, the thickness of the former ice sheet as well as its response to climate change. Copyright © 2008 John Wiley & Sons,

AB - The now acknowledged thinning of the Greenland Ice Sheet raises concerns about its potential contribution to future sea level rise. In order to appreciate the full extent of its contribution to sea level rise, reconstruction of the ice sheet's most recent last deglaciation could provide key information on the timing and the height of the ice sheet at a time of rapid climate readjustment. We measured 10Be concentrations in 12 samples collected along longitudinal and altitudinal transects from Sisimiut to within 10 km of the Isunguata Sermia Glacier ice margin on the western coast of Greenland. Along the longitudinal transect, we collected three perched boulders and two bedrocks. In addition, we sampled seven perched boulders along a vertical transect in a valley within 10 km of the Isunguata Sermia Glacier ice margin. Our pilot dataset constrains the height of the ice sheet during the Last Glacial Maximum (LGM) between 500 m and 840 m (including the 120 m relative sea level depression at the time of the LGM, 21 ka BP). From the transect we estimate the thinning of the ice sheet at the end of the deglaciation between 12.3 ± 1.5 10Be ka (n = 2) and 8.3 ± 1.2 10Be ka (n = 3) to be ∼6 cm a−1 over this time period. Direct dating of the retreat of the western margin of the Greenland Ice Sheet has the potential to better constrain the retreat rate of the ice margin, the thickness of the former ice sheet as well as its response to climate change. Copyright © 2008 John Wiley & Sons,

UR - http://www.scopus.com/inward/record.url?scp=66049088686&partnerID=8YFLogxK

U2 - 10.1002/jqs.1226

DO - 10.1002/jqs.1226

M3 - Article

VL - 24

SP - 270

EP - 278

JO - Journal of Quaternary Science

T2 - Journal of Quaternary Science

JF - Journal of Quaternary Science

SN - 0267-8179

IS - 3

ER -

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ID: 470717