Cosmogenic 10Be dating of the Salpausselkä I Moraine in southwestern Finland

Vincent Rinterknecht; P U Clark; G M Raisbeck; F Yiou; E J Brook; S Tschudi; J P Lunkka

doi:10.1016/j.quascirev.2004.06.012

Cosmogenic ¹⁰Be dating of the Salpausselkä I Moraine in southwestern Finland

Vincent Rinterknecht, P U Clark, G M Raisbeck, F Yiou, E J Brook, S Tschudi, J P Lunkka

Scottish Oceans Institute

Research output: Contribution to journal › Article › peer-review

Abstract

We determined in situ cosmogenic Be-10 ages for nine boulders sampled on the Salpausselka I (Ss I) Moraine. Previous dating of this moraine indicated that it formed during the Younger Dryas Stadial along the southern margin of the Scandinavian Ice Sheet in southern Finland. Our new exposure ages range from 10.9 +/- 1.0 to 13.5 +/- 1.2 Be-10 ka, with an error-weighted mean age of 12.4 +/- 0.7 Be-10 ka. Our results confirm four previous Be-10 ages obtained 40 km northeast of our sample location. The combined data (n = 13) indicate that retreat from the Ss I Moraine occurred at 12.5 +/- 0.7 Be-10 ka, in excellent agreement with an age of 12.1 ka for retreat from the Ss I Moraine based on varve chronologies. These results identify the Ss I Moraine as among the best-dated margins associated with Late Quaternary ice sheets. (C) 2004 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2283-2289
Number of pages	7
Journal	Quaternary Science Reviews
Volume	23
Issue number	23-24
DOIs	https://doi.org/10.1016/j.quascirev.2004.06.012
Publication status	Published - Dec 2004

Keywords

GEOMAGNETIC-FIELD INTENSITY
SCANDINAVIAN ICE-SHEET
END MORAINES
HALF-LIFE
SEA
RECORD
DEGLACIATION
CHRONOLOGY
STANDARDS
CORALS

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10.1016/j.quascirev.2004.06.012

Cite this

@article{7dacc99fa74a488db4be10899df672cc,

title = "Cosmogenic 10Be dating of the Salpausselk{\"a} I Moraine in southwestern Finland",

abstract = "We determined in situ cosmogenic Be-10 ages for nine boulders sampled on the Salpausselka I (Ss I) Moraine. Previous dating of this moraine indicated that it formed during the Younger Dryas Stadial along the southern margin of the Scandinavian Ice Sheet in southern Finland. Our new exposure ages range from 10.9 +/- 1.0 to 13.5 +/- 1.2 Be-10 ka, with an error-weighted mean age of 12.4 +/- 0.7 Be-10 ka. Our results confirm four previous Be-10 ages obtained 40 km northeast of our sample location. The combined data (n = 13) indicate that retreat from the Ss I Moraine occurred at 12.5 +/- 0.7 Be-10 ka, in excellent agreement with an age of 12.1 ka for retreat from the Ss I Moraine based on varve chronologies. These results identify the Ss I Moraine as among the best-dated margins associated with Late Quaternary ice sheets. (C) 2004 Elsevier Ltd. All rights reserved.",

keywords = "GEOMAGNETIC-FIELD INTENSITY, SCANDINAVIAN ICE-SHEET, END MORAINES, HALF-LIFE, SEA, RECORD, DEGLACIATION, CHRONOLOGY, STANDARDS, CORALS",

author = "Vincent Rinterknecht and Clark, {P U} and Raisbeck, {G M} and F Yiou and Brook, {E J} and S Tschudi and Lunkka, {J P}",

year = "2004",

month = dec,

doi = "10.1016/j.quascirev.2004.06.012",

language = "English",

volume = "23",

pages = "2283--2289",

journal = "Quaternary Science Reviews",

issn = "0277-3791",

publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

number = "23-24",

}

TY - JOUR

T1 - Cosmogenic 10Be dating of the Salpausselkä I Moraine in southwestern Finland

AU - Rinterknecht, Vincent

AU - Clark, P U

AU - Raisbeck, G M

AU - Yiou, F

AU - Brook, E J

AU - Tschudi, S

AU - Lunkka, J P

PY - 2004/12

Y1 - 2004/12

N2 - We determined in situ cosmogenic Be-10 ages for nine boulders sampled on the Salpausselka I (Ss I) Moraine. Previous dating of this moraine indicated that it formed during the Younger Dryas Stadial along the southern margin of the Scandinavian Ice Sheet in southern Finland. Our new exposure ages range from 10.9 +/- 1.0 to 13.5 +/- 1.2 Be-10 ka, with an error-weighted mean age of 12.4 +/- 0.7 Be-10 ka. Our results confirm four previous Be-10 ages obtained 40 km northeast of our sample location. The combined data (n = 13) indicate that retreat from the Ss I Moraine occurred at 12.5 +/- 0.7 Be-10 ka, in excellent agreement with an age of 12.1 ka for retreat from the Ss I Moraine based on varve chronologies. These results identify the Ss I Moraine as among the best-dated margins associated with Late Quaternary ice sheets. (C) 2004 Elsevier Ltd. All rights reserved.

AB - We determined in situ cosmogenic Be-10 ages for nine boulders sampled on the Salpausselka I (Ss I) Moraine. Previous dating of this moraine indicated that it formed during the Younger Dryas Stadial along the southern margin of the Scandinavian Ice Sheet in southern Finland. Our new exposure ages range from 10.9 +/- 1.0 to 13.5 +/- 1.2 Be-10 ka, with an error-weighted mean age of 12.4 +/- 0.7 Be-10 ka. Our results confirm four previous Be-10 ages obtained 40 km northeast of our sample location. The combined data (n = 13) indicate that retreat from the Ss I Moraine occurred at 12.5 +/- 0.7 Be-10 ka, in excellent agreement with an age of 12.1 ka for retreat from the Ss I Moraine based on varve chronologies. These results identify the Ss I Moraine as among the best-dated margins associated with Late Quaternary ice sheets. (C) 2004 Elsevier Ltd. All rights reserved.

KW - GEOMAGNETIC-FIELD INTENSITY

KW - SCANDINAVIAN ICE-SHEET

KW - END MORAINES

KW - HALF-LIFE

KW - SEA

KW - RECORD

KW - DEGLACIATION

KW - CHRONOLOGY

KW - STANDARDS

KW - CORALS

U2 - 10.1016/j.quascirev.2004.06.012

DO - 10.1016/j.quascirev.2004.06.012

M3 - Article

SN - 0277-3791

VL - 23

SP - 2283

EP - 2289

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

IS - 23-24