Extensive marine-terminating ice sheets in Europe from 2.5 million years ago

Brice R. Rea; Andrew M. W. Newton; Rachel M. Lamb; Rachel Harding; Grant R. Bigg; Phil Rose; Matteo Spagnolo; Mads Huuse; John M. L. Cater; Stuart Archer; Francis Buckley; Maral Halliyeva; Jane Huuse; David G. Cornwell; Simon H. Brocklehurst; John A. Howell

doi:10.1126/sciadv.aar8327

Extensive marine-terminating ice sheets in Europe from 2.5 million years ago

Brice R. Rea, Andrew M. W. Newton, Rachel M. Lamb, Rachel Harding, Grant R. Bigg, Phil Rose, Matteo Spagnolo, Mads Huuse, John M. L. Cater, Stuart Archer, Francis Buckley, Maral Halliyeva, Jane Huuse, David G. Cornwell, Simon H. Brocklehurst, John A. Howell

School of Natural and Built Environment

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Abstract

Geometries of Early Pleistocene [2.58 to 0.78 million years (Ma) ago] ice sheets in northwest Europe are poorly constrained but are required to improve our understanding of past ocean-atmosphere-cryosphere coupling. Ice sheets are believed to have changed in their response to orbital forcing, becoming, from about 1.2 Ma ago, volumetrically larger and longer-lived. We present a multiproxy data set for the North Sea, extending to over a kilometer below the present-day seafloor, which demonstrates spatially extensive glaciation of the basin from the earliest Pleistocene. Ice sheets repeatedly entered the North Sea, south of 60°N, in water depths of up to ~250 m from 2.53 Ma ago and subsequently grounded in the center of the basin, in deeper water, from 1.87 Ma ago. Despite lower global ice volumes, these ice sheets were near comparable in spatial extent to those of the Middle and Late Pleistocene but possibly thinner and moving over slippery (low basal resistance) beds.

Original language	English
Article number	eaar8327
Number of pages	11
Journal	Science Advances
Volume	4
Issue number	6
DOIs	https://doi.org/10.1126/sciadv.aar8327
Publication status	Published - Jun 2018

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Extensive marine-terminating ice sheets in Europe from 2.5 million years ago
Copyright 2018 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 1.43 MBLicence: CC BY

Extensive marine-terminating ice sheets in Europe from 2.5 million years ago
Newton, A.
13/06/2018 → 07/09/2018
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Andrew Newton
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Rea, B. R., Newton, A. M. W., Lamb, R. M., Harding, R., Bigg, G. R., Rose, P., Spagnolo, M., Huuse, M., Cater, J. M. L., Archer, S., Buckley, F., Halliyeva, M., Huuse, J., Cornwell, D. G., Brocklehurst, S. H., & Howell, J. A. (2018). Extensive marine-terminating ice sheets in Europe from 2.5 million years ago. Science Advances, 4(6), Article eaar8327. https://doi.org/10.1126/sciadv.aar8327

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title = "Extensive marine-terminating ice sheets in Europe from 2.5 million years ago",

abstract = "Geometries of Early Pleistocene [2.58 to 0.78 million years (Ma) ago] ice sheets in northwest Europe are poorly constrained but are required to improve our understanding of past ocean-atmosphere-cryosphere coupling. Ice sheets are believed to have changed in their response to orbital forcing, becoming, from about 1.2 Ma ago, volumetrically larger and longer-lived. We present a multiproxy data set for the North Sea, extending to over a kilometer below the present-day seafloor, which demonstrates spatially extensive glaciation of the basin from the earliest Pleistocene. Ice sheets repeatedly entered the North Sea, south of 60°N, in water depths of up to ~250 m from 2.53 Ma ago and subsequently grounded in the center of the basin, in deeper water, from 1.87 Ma ago. Despite lower global ice volumes, these ice sheets were near comparable in spatial extent to those of the Middle and Late Pleistocene but possibly thinner and moving over slippery (low basal resistance) beds.",

author = "Rea, {Brice R.} and Newton, {Andrew M. W.} and Lamb, {Rachel M.} and Rachel Harding and Bigg, {Grant R.} and Phil Rose and Matteo Spagnolo and Mads Huuse and Cater, {John M. L.} and Stuart Archer and Francis Buckley and Maral Halliyeva and Jane Huuse and Cornwell, {David G.} and Brocklehurst, {Simon H.} and Howell, {John A.}",

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AU - Rea, Brice R.

AU - Newton, Andrew M. W.

AU - Lamb, Rachel M.

AU - Harding, Rachel

AU - Bigg, Grant R.

AU - Rose, Phil

AU - Spagnolo, Matteo

AU - Huuse, Mads

AU - Cater, John M. L.

AU - Archer, Stuart

AU - Buckley, Francis

AU - Halliyeva, Maral

AU - Huuse, Jane

AU - Cornwell, David G.

AU - Brocklehurst, Simon H.

AU - Howell, John A.

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AB - Geometries of Early Pleistocene [2.58 to 0.78 million years (Ma) ago] ice sheets in northwest Europe are poorly constrained but are required to improve our understanding of past ocean-atmosphere-cryosphere coupling. Ice sheets are believed to have changed in their response to orbital forcing, becoming, from about 1.2 Ma ago, volumetrically larger and longer-lived. We present a multiproxy data set for the North Sea, extending to over a kilometer below the present-day seafloor, which demonstrates spatially extensive glaciation of the basin from the earliest Pleistocene. Ice sheets repeatedly entered the North Sea, south of 60°N, in water depths of up to ~250 m from 2.53 Ma ago and subsequently grounded in the center of the basin, in deeper water, from 1.87 Ma ago. Despite lower global ice volumes, these ice sheets were near comparable in spatial extent to those of the Middle and Late Pleistocene but possibly thinner and moving over slippery (low basal resistance) beds.

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DO - 10.1126/sciadv.aar8327

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JO - Science Advances

JF - Science Advances

IS - 6

M1 - eaar8327

ER -

Extensive marine-terminating ice sheets in Europe from 2.5 million years ago

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