Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1. / Muschitiello, Francesco; Lea, James M.; Greenwood, Sarah L.; Nick, Faezeh M.; Brunnberg, Lars; Macleod, Alison; Wohlfarth, Barbara.

In: Boreas: an International Journal of Quaternary Research, Vol. 45, No. 2, 04.2016, p. 322–334.

Research output: Contribution to journalArticle

Published

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Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1. / Muschitiello, Francesco; Lea, James M.; Greenwood, Sarah L.; Nick, Faezeh M.; Brunnberg, Lars; Macleod, Alison; Wohlfarth, Barbara.

In: Boreas: an International Journal of Quaternary Research, Vol. 45, No. 2, 04.2016, p. 322–334.

Research output: Contribution to journalArticle

Harvard

Muschitiello, F, Lea, JM, Greenwood, SL, Nick, FM, Brunnberg, L, Macleod, A & Wohlfarth, B 2016, 'Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1', Boreas: an International Journal of Quaternary Research, vol. 45, no. 2, pp. 322–334. https://doi.org/10.1111/bor.12155

APA

Muschitiello, F., Lea, J. M., Greenwood, S. L., Nick, F. M., Brunnberg, L., Macleod, A., & Wohlfarth, B. (2016). Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1. Boreas: an International Journal of Quaternary Research, 45(2), 322–334. https://doi.org/10.1111/bor.12155

Vancouver

Muschitiello F, Lea JM, Greenwood SL, Nick FM, Brunnberg L, Macleod A et al. Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1. Boreas: an International Journal of Quaternary Research. 2016 Apr;45(2):322–334. https://doi.org/10.1111/bor.12155

Author

Muschitiello, Francesco ; Lea, James M. ; Greenwood, Sarah L. ; Nick, Faezeh M. ; Brunnberg, Lars ; Macleod, Alison ; Wohlfarth, Barbara. / Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1. In: Boreas: an International Journal of Quaternary Research. 2016 ; Vol. 45, No. 2. pp. 322–334.

BibTeX

@article{49101720ac834c1aa27c39ef75c3c000,
title = "Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1",
abstract = "Glacial varves can give significant insights into recession and melting rates of decaying ice sheets. Moreover, varve chronologies can provide an independent means of comparison to other annually resolved climatic archives, which ultimately help to assess the timing and response of an ice sheet to changes across rapid climate transitions. Here we report a composite 1257-year long varve chronology from south-eastern Sweden spanning the regional late Aller{\o}d-late Younger Dryas pollen zone. The chronology was correlated to the Greenland Ice Core Chronology 2005 using the time-synchronous Vedde Ash volcanic marker, which can be found in both successions. For the first time, this enables secure placement of the Lateglacial Swedish varve chronology in absolute time. Geochemical analysis from new varve successions indicate a marked change in sedimentation regime accompanied by an interruption of ice-rafted debris deposition synchronous with the onset of Greenland Stadial 1 (GS-1; 12 846 years before 1950 AD). With the support of a simple ice flow/calving model, we suggest that slowdown of sediment transfer can be explained by ice-sheet margin stabilisation/advance in response to a significant drop of the Baltic Ice Lake level. A reassessment of chronological evidence from central-western and southern Sweden further supports the hypothesis of synchronicity between the first (penultimate) catastrophic drainage of the Baltic Ice Lake and the start of GS-1 in Greenland ice cores. Our results may therefore provide the first chronologically robust evidence linking continental meltwater forcing to rapid atmosphere-ocean circulation changes in the North Atlantic.",
author = "Francesco Muschitiello and Lea, {James M.} and Greenwood, {Sarah L.} and Nick, {Faezeh M.} and Lars Brunnberg and Alison Macleod and Barbara Wohlfarth",
year = "2016",
month = apr,
doi = "10.1111/bor.12155",
language = "English",
volume = "45",
pages = "322–334",
journal = "Boreas: an International Journal of Quaternary Research",
issn = "0300-9483",
publisher = "Wiley-Blackwell",
number = "2",

}

RIS

TY - JOUR

T1 - Timing of the first drainage of the Baltic Ice Lake synchronous with the onset of Greenland Stadial 1

AU - Muschitiello, Francesco

AU - Lea, James M.

AU - Greenwood, Sarah L.

AU - Nick, Faezeh M.

AU - Brunnberg, Lars

AU - Macleod, Alison

AU - Wohlfarth, Barbara

PY - 2016/4

Y1 - 2016/4

N2 - Glacial varves can give significant insights into recession and melting rates of decaying ice sheets. Moreover, varve chronologies can provide an independent means of comparison to other annually resolved climatic archives, which ultimately help to assess the timing and response of an ice sheet to changes across rapid climate transitions. Here we report a composite 1257-year long varve chronology from south-eastern Sweden spanning the regional late Allerød-late Younger Dryas pollen zone. The chronology was correlated to the Greenland Ice Core Chronology 2005 using the time-synchronous Vedde Ash volcanic marker, which can be found in both successions. For the first time, this enables secure placement of the Lateglacial Swedish varve chronology in absolute time. Geochemical analysis from new varve successions indicate a marked change in sedimentation regime accompanied by an interruption of ice-rafted debris deposition synchronous with the onset of Greenland Stadial 1 (GS-1; 12 846 years before 1950 AD). With the support of a simple ice flow/calving model, we suggest that slowdown of sediment transfer can be explained by ice-sheet margin stabilisation/advance in response to a significant drop of the Baltic Ice Lake level. A reassessment of chronological evidence from central-western and southern Sweden further supports the hypothesis of synchronicity between the first (penultimate) catastrophic drainage of the Baltic Ice Lake and the start of GS-1 in Greenland ice cores. Our results may therefore provide the first chronologically robust evidence linking continental meltwater forcing to rapid atmosphere-ocean circulation changes in the North Atlantic.

AB - Glacial varves can give significant insights into recession and melting rates of decaying ice sheets. Moreover, varve chronologies can provide an independent means of comparison to other annually resolved climatic archives, which ultimately help to assess the timing and response of an ice sheet to changes across rapid climate transitions. Here we report a composite 1257-year long varve chronology from south-eastern Sweden spanning the regional late Allerød-late Younger Dryas pollen zone. The chronology was correlated to the Greenland Ice Core Chronology 2005 using the time-synchronous Vedde Ash volcanic marker, which can be found in both successions. For the first time, this enables secure placement of the Lateglacial Swedish varve chronology in absolute time. Geochemical analysis from new varve successions indicate a marked change in sedimentation regime accompanied by an interruption of ice-rafted debris deposition synchronous with the onset of Greenland Stadial 1 (GS-1; 12 846 years before 1950 AD). With the support of a simple ice flow/calving model, we suggest that slowdown of sediment transfer can be explained by ice-sheet margin stabilisation/advance in response to a significant drop of the Baltic Ice Lake level. A reassessment of chronological evidence from central-western and southern Sweden further supports the hypothesis of synchronicity between the first (penultimate) catastrophic drainage of the Baltic Ice Lake and the start of GS-1 in Greenland ice cores. Our results may therefore provide the first chronologically robust evidence linking continental meltwater forcing to rapid atmosphere-ocean circulation changes in the North Atlantic.

U2 - 10.1111/bor.12155

DO - 10.1111/bor.12155

M3 - Article

VL - 45

SP - 322

EP - 334

JO - Boreas: an International Journal of Quaternary Research

JF - Boreas: an International Journal of Quaternary Research

SN - 0300-9483

IS - 2

ER -