Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting
The last glacial maximum (LGM) and post-glacial Quaternary history of Forlandsundet, the strait between western Spitsbergen and Prins Karls Forland, are enigmatic. Previous terrestrial field studies report contradicting evidence for an ice sheet either overriding the entire strait or completely abse...
Published in: | arktos |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/late-weichselian-glacial-history-of-forlandsundet-western-svalbard(8f90374e-6b4d-412f-8b9e-3e0e56f01a0d).html https://doi.org/10.1007/s41063-018-0063-x https://rdcu.be/bchEq |
id |
ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/8f90374e-6b4d-412f-8b9e-3e0e56f01a0d |
---|---|
record_format |
openpolar |
spelling |
ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/8f90374e-6b4d-412f-8b9e-3e0e56f01a0d 2023-05-15T15:39:03+02:00 Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting Butschek, Felix Arosio, Riccardo Austin, William E. N. Noormets, Riko Howe, John A. 2018-12-01 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/late-weichselian-glacial-history-of-forlandsundet-western-svalbard(8f90374e-6b4d-412f-8b9e-3e0e56f01a0d).html https://doi.org/10.1007/s41063-018-0063-x https://rdcu.be/bchEq eng eng info:eu-repo/semantics/restrictedAccess Butschek , F , Arosio , R , Austin , W E N , Noormets , R & Howe , J A 2018 , ' Late Weichselian glacial history of Forlandsundet, western Svalbard : an inter-ice-stream setting ' , arktos , vol. First online . https://doi.org/10.1007/s41063-018-0063-x Last glacial maximum Forlandsundet Svalbard Deglaciation Inter-ice-stream Submarine landforms Foraminifera article 2018 ftunstandrewcris https://doi.org/10.1007/s41063-018-0063-x 2021-12-26T14:33:36Z The last glacial maximum (LGM) and post-glacial Quaternary history of Forlandsundet, the strait between western Spitsbergen and Prins Karls Forland, are enigmatic. Previous terrestrial field studies report contradicting evidence for an ice sheet either overriding the entire strait or completely absent during the LGM. Here, we present a multi-proxy investigation of marine sediments, high-resolution bathymetric data and aerial imagery from Forlandsundet. We reveal glacial till present at 15 cal. ka BP and geomorphological landforms characteristic to an inter-ice-stream glaciated margin. This new evidence implies that the Forlandsundet region was fully glaciated during the LGM. This glaciation was followed by a stepwise retreat of glacial ice during the Bølling–Allerød (14.7–12.7 cal. ka BP) and Younger Dryas (12.7–11.7 cal. ka BP). The Holocene record from the marine sediments is incomplete, with a hiatus from approximately 11.8 to 7.4 cal. ka BP, interpreted as an erosive event. By the mid-Holocene (7.4 cal. ka BP), more temperate, Atlantic conditions based on the benthic foraminiferal assemblages prevailed, and are followed by gradual cooling into the late Holocene (< 4 cal. ka BP). This study provides new data to resolve the LGM extent of the Svalbard–Barents Sea ice sheet in the Forlandsundet region and sheds light on the deglacial ice dynamics in a palaeo-inter-ice-stream area driven by the inflow of warm Atlantic water. Article in Journal/Newspaper Barents Sea Forlandsundet Ice Sheet Prins Karls Forland Sea ice Svalbard Svalbard-Barents Sea Ice sheet Spitsbergen University of St Andrews: Research Portal Barents Sea Forlandsundet ENVELOPE(11.984,11.984,78.510,78.510) Prins Karls Forland ENVELOPE(11.175,11.175,78.543,78.543) Svalbard arktos 5 1 1 14 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Last glacial maximum Forlandsundet Svalbard Deglaciation Inter-ice-stream Submarine landforms Foraminifera |
spellingShingle |
Last glacial maximum Forlandsundet Svalbard Deglaciation Inter-ice-stream Submarine landforms Foraminifera Butschek, Felix Arosio, Riccardo Austin, William E. N. Noormets, Riko Howe, John A. Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
topic_facet |
Last glacial maximum Forlandsundet Svalbard Deglaciation Inter-ice-stream Submarine landforms Foraminifera |
description |
The last glacial maximum (LGM) and post-glacial Quaternary history of Forlandsundet, the strait between western Spitsbergen and Prins Karls Forland, are enigmatic. Previous terrestrial field studies report contradicting evidence for an ice sheet either overriding the entire strait or completely absent during the LGM. Here, we present a multi-proxy investigation of marine sediments, high-resolution bathymetric data and aerial imagery from Forlandsundet. We reveal glacial till present at 15 cal. ka BP and geomorphological landforms characteristic to an inter-ice-stream glaciated margin. This new evidence implies that the Forlandsundet region was fully glaciated during the LGM. This glaciation was followed by a stepwise retreat of glacial ice during the Bølling–Allerød (14.7–12.7 cal. ka BP) and Younger Dryas (12.7–11.7 cal. ka BP). The Holocene record from the marine sediments is incomplete, with a hiatus from approximately 11.8 to 7.4 cal. ka BP, interpreted as an erosive event. By the mid-Holocene (7.4 cal. ka BP), more temperate, Atlantic conditions based on the benthic foraminiferal assemblages prevailed, and are followed by gradual cooling into the late Holocene (< 4 cal. ka BP). This study provides new data to resolve the LGM extent of the Svalbard–Barents Sea ice sheet in the Forlandsundet region and sheds light on the deglacial ice dynamics in a palaeo-inter-ice-stream area driven by the inflow of warm Atlantic water. |
format |
Article in Journal/Newspaper |
author |
Butschek, Felix Arosio, Riccardo Austin, William E. N. Noormets, Riko Howe, John A. |
author_facet |
Butschek, Felix Arosio, Riccardo Austin, William E. N. Noormets, Riko Howe, John A. |
author_sort |
Butschek, Felix |
title |
Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
title_short |
Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
title_full |
Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
title_fullStr |
Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
title_full_unstemmed |
Late Weichselian glacial history of Forlandsundet, western Svalbard:an inter-ice-stream setting |
title_sort |
late weichselian glacial history of forlandsundet, western svalbard:an inter-ice-stream setting |
publishDate |
2018 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/late-weichselian-glacial-history-of-forlandsundet-western-svalbard(8f90374e-6b4d-412f-8b9e-3e0e56f01a0d).html https://doi.org/10.1007/s41063-018-0063-x https://rdcu.be/bchEq |
long_lat |
ENVELOPE(11.984,11.984,78.510,78.510) ENVELOPE(11.175,11.175,78.543,78.543) |
geographic |
Barents Sea Forlandsundet Prins Karls Forland Svalbard |
geographic_facet |
Barents Sea Forlandsundet Prins Karls Forland Svalbard |
genre |
Barents Sea Forlandsundet Ice Sheet Prins Karls Forland Sea ice Svalbard Svalbard-Barents Sea Ice sheet Spitsbergen |
genre_facet |
Barents Sea Forlandsundet Ice Sheet Prins Karls Forland Sea ice Svalbard Svalbard-Barents Sea Ice sheet Spitsbergen |
op_source |
Butschek , F , Arosio , R , Austin , W E N , Noormets , R & Howe , J A 2018 , ' Late Weichselian glacial history of Forlandsundet, western Svalbard : an inter-ice-stream setting ' , arktos , vol. First online . https://doi.org/10.1007/s41063-018-0063-x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s41063-018-0063-x |
container_title |
arktos |
container_volume |
5 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
14 |
_version_ |
1766370495820726272 |