Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system
First paragraph: Current estimates of ice-mass loss from ice sheets vary, but there is consensus that the rate of loss has increased over the last two decades fromc.100 toc.400 Gt a−1with the great majority occurring within ice-stream systems (e.g.Shepherdet al.2012;Hannaet al.2013). Where ice strea...
Published in: | Geological Society, London, Memoirs |
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Language: | English |
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Geological Society of London
2016
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Online Access: | http://hdl.handle.net/1893/24899 https://doi.org/10.1144/M46.152 http://mem.lyellcollection.org/content/46/1/421 http://dspace.stir.ac.uk/bitstream/1893/24899/1/Accepted_version_LoRes.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/24899 2023-05-15T13:49:59+02:00 Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system Bradwell, Tom Stoker, Martyn Dowdeswell, JA Canals, M Jakobsson, M Todd, BJ Dowdeswell, EK Hogan, KA Biological and Environmental Sciences British Geological Survey orcid:0000-0003-0947-3309 2016 application/pdf http://hdl.handle.net/1893/24899 https://doi.org/10.1144/M46.152 http://mem.lyellcollection.org/content/46/1/421 http://dspace.stir.ac.uk/bitstream/1893/24899/1/Accepted_version_LoRes.pdf en eng Geological Society of London London Bradwell T & Stoker M (2016) Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system. In: Dowdeswell J, Canals M, Jakobsson M, Todd B, Dowdeswell E & Hogan K (eds.) Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society Memoir, 46. London: Geological Society of London, pp. 421-428. http://mem.lyellcollection.org/content/46/1/421; https://doi.org/10.1144/M46.152 Geological Society Memoir, 46 http://hdl.handle.net/1893/24899 doi:10.1144/M46.152 http://mem.lyellcollection.org/content/46/1/421 538246 http://dspace.stir.ac.uk/bitstream/1893/24899/1/Accepted_version_LoRes.pdf This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository. Published in Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient, Geological Society, London, Memoirs, Vol. 46, 2016, pp. 421-428 by Geological Society of London. The original publication is available at: https://doi.org/10.1144/M46.152 2019-01-01 [Accepted_version_LoRes.pdf] Publisher requires embargo of 12 months after formal publication. Part of book or chapter of book AM - Accepted Manuscript 2016 ftunivstirling https://doi.org/10.1144/M46.152 2022-06-13T18:45:44Z First paragraph: Current estimates of ice-mass loss from ice sheets vary, but there is consensus that the rate of loss has increased over the last two decades fromc.100 toc.400 Gt a−1with the great majority occurring within ice-stream systems (e.g.Shepherdet al.2012;Hannaet al.2013). Where ice streams terminate in open-marine settings large volumes of ice are discharged into the oceans via calving, as currently seen in Pine Island Bay, West Antarctica or at Jakobshavn Isbrae, West Greenland. At the Last Glacial Maximum (LGM), an ice sheet covered more than two-thirds of the British Isles (50–61° N) and reached onto the continental shelf, in places extending to the shelf edge in the west (Gibbard & Clark 2011;Clarket al.2012). In this contribution we summarize the Pleistocene sediment and landform record of a large mid-latitude ice stream that once drained the NW sector of the British–Irish Ice Sheet (BIIS). Drawing on marine geophysical and geological data from the NW UK continental shelf collected over four decades, we describe the main elements of the system along a transect stretching for >300 km from the heads of the fjords to beyond the shelf slope. The work draws largely on previously published research (Stokeret al.1993,2006,2009,2010;Stoker & Bradwell 2005;Bradwellet al.2007,2008a,b;Bradwell & Stoker 2015a,b), but includes some new insights and interpretations. Book Part Antarc* Antarctica Greenland Ice Sheet Jakobshavn Pine Island Pine Island Bay West Antarctica University of Stirling: Stirling Digital Research Repository Greenland Island Bay ENVELOPE(-109.085,-109.085,59.534,59.534) Pine Island Bay ENVELOPE(-102.000,-102.000,-74.750,-74.750) West Antarctica Geological Society, London, Memoirs 46 1 421 428 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
description |
First paragraph: Current estimates of ice-mass loss from ice sheets vary, but there is consensus that the rate of loss has increased over the last two decades fromc.100 toc.400 Gt a−1with the great majority occurring within ice-stream systems (e.g.Shepherdet al.2012;Hannaet al.2013). Where ice streams terminate in open-marine settings large volumes of ice are discharged into the oceans via calving, as currently seen in Pine Island Bay, West Antarctica or at Jakobshavn Isbrae, West Greenland. At the Last Glacial Maximum (LGM), an ice sheet covered more than two-thirds of the British Isles (50–61° N) and reached onto the continental shelf, in places extending to the shelf edge in the west (Gibbard & Clark 2011;Clarket al.2012). In this contribution we summarize the Pleistocene sediment and landform record of a large mid-latitude ice stream that once drained the NW sector of the British–Irish Ice Sheet (BIIS). Drawing on marine geophysical and geological data from the NW UK continental shelf collected over four decades, we describe the main elements of the system along a transect stretching for >300 km from the heads of the fjords to beyond the shelf slope. The work draws largely on previously published research (Stokeret al.1993,2006,2009,2010;Stoker & Bradwell 2005;Bradwellet al.2007,2008a,b;Bradwell & Stoker 2015a,b), but includes some new insights and interpretations. |
author2 |
Dowdeswell, JA Canals, M Jakobsson, M Todd, BJ Dowdeswell, EK Hogan, KA Biological and Environmental Sciences British Geological Survey orcid:0000-0003-0947-3309 |
format |
Book Part |
author |
Bradwell, Tom Stoker, Martyn |
spellingShingle |
Bradwell, Tom Stoker, Martyn Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
author_facet |
Bradwell, Tom Stoker, Martyn |
author_sort |
Bradwell, Tom |
title |
Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
title_short |
Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
title_full |
Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
title_fullStr |
Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
title_full_unstemmed |
Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system |
title_sort |
glacial sediment and landform record offshore nw scotland: a fjord-shelf-slope transect through a late quaternary mid-latitude ice-stream system |
publisher |
Geological Society of London |
publishDate |
2016 |
url |
http://hdl.handle.net/1893/24899 https://doi.org/10.1144/M46.152 http://mem.lyellcollection.org/content/46/1/421 http://dspace.stir.ac.uk/bitstream/1893/24899/1/Accepted_version_LoRes.pdf |
long_lat |
ENVELOPE(-109.085,-109.085,59.534,59.534) ENVELOPE(-102.000,-102.000,-74.750,-74.750) |
geographic |
Greenland Island Bay Pine Island Bay West Antarctica |
geographic_facet |
Greenland Island Bay Pine Island Bay West Antarctica |
genre |
Antarc* Antarctica Greenland Ice Sheet Jakobshavn Pine Island Pine Island Bay West Antarctica |
genre_facet |
Antarc* Antarctica Greenland Ice Sheet Jakobshavn Pine Island Pine Island Bay West Antarctica |
op_relation |
Bradwell T & Stoker M (2016) Glacial sediment and landform record offshore NW Scotland: A fjord-shelf-slope transect through a Late Quaternary mid-latitude ice-stream system. In: Dowdeswell J, Canals M, Jakobsson M, Todd B, Dowdeswell E & Hogan K (eds.) Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient. Geological Society Memoir, 46. London: Geological Society of London, pp. 421-428. http://mem.lyellcollection.org/content/46/1/421; https://doi.org/10.1144/M46.152 Geological Society Memoir, 46 http://hdl.handle.net/1893/24899 doi:10.1144/M46.152 http://mem.lyellcollection.org/content/46/1/421 538246 http://dspace.stir.ac.uk/bitstream/1893/24899/1/Accepted_version_LoRes.pdf |
op_rights |
This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository. Published in Atlas of Submarine Glacial Landforms: Modern, Quaternary and Ancient, Geological Society, London, Memoirs, Vol. 46, 2016, pp. 421-428 by Geological Society of London. The original publication is available at: https://doi.org/10.1144/M46.152 2019-01-01 [Accepted_version_LoRes.pdf] Publisher requires embargo of 12 months after formal publication. |
op_doi |
https://doi.org/10.1144/M46.152 |
container_title |
Geological Society, London, Memoirs |
container_volume |
46 |
container_issue |
1 |
container_start_page |
421 |
op_container_end_page |
428 |
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1766252688064905216 |