Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition
The Norwegian Channel Ice Stream of the Scandinavian Ice Sheet extended across the northern North Sea margin during the mid- to late Quaternary, eroding older sediment from the continental shelf. Consequently, little is known about early Quaternary sedimentation on this margin. We use two- and three...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | https://www.repository.cam.ac.uk/handle/1810/262906 https://doi.org/10.17863/CAM.8195 |
id |
ftunivcam:oai:www.repository.cam.ac.uk:1810/262906 |
---|---|
record_format |
openpolar |
spelling |
ftunivcam:oai:www.repository.cam.ac.uk:1810/262906 2024-02-04T10:01:16+01:00 Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition Batchelor, C Ottesen, D Dowdeswell, JA 2017 application/pdf https://www.repository.cam.ac.uk/handle/1810/262906 https://doi.org/10.17863/CAM.8195 eng eng Wiley http://dx.doi.org/10.1002/jqs.2934 Journal of Quaternary Science https://www.repository.cam.ac.uk/handle/1810/262906 doi:10.17863/CAM.8195 contourites glacigenic debris-flows northern North Sea palaeo-ice stream Quaternary Article 2017 ftunivcam https://doi.org/10.17863/CAM.8195 2024-01-11T23:27:24Z The Norwegian Channel Ice Stream of the Scandinavian Ice Sheet extended across the northern North Sea margin during the mid- to late Quaternary, eroding older sediment from the continental shelf. Consequently, little is known about early Quaternary sedimentation on this margin. We use two- and three-dimensional seismic-reflection data to investigate changing sediment volumes and sources in the northern North Sea through the Quaternary. The northern North Sea Basin was infilled during the early Quaternary by intercalated glacigenic debris-flows and contourites, which provide a record of the delivery of glacigenic sediment to the slope and the intensity of North Atlantic thermohaline circulation during early Quaternary glacial-interglacial cycles. The infilling of the basin reduced accommodation and led to the deflection of mid- to late Quaternary sediments into the Norwegian Sea, forming the North Sea Fan. Close to the onset of the mid-Quaternary, the south-western Scandinavian Ice Sheet margin was drained by an ice stream located beneath Måløy Plateau, 60 km east of the Last Glacial Maximum Norwegian Channel Ice Stream. The southward-flowing Norwegian Sea Bottom Water current was directed into the partially filled northern North Sea Basin during the early Quaternary, and deflected progressively northwards as the basin became infilled. During this work, C. L. Batchelor was in receipt of a Junior Research Fellowship at Newnham College, Cambridge. Article in Journal/Newspaper Ice Sheet North Atlantic North atlantic Thermohaline circulation Norwegian Sea Apollo - University of Cambridge Repository Norwegian Sea Måløy ENVELOPE(7.845,7.845,62.998,62.998) |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
contourites glacigenic debris-flows northern North Sea palaeo-ice stream Quaternary |
spellingShingle |
contourites glacigenic debris-flows northern North Sea palaeo-ice stream Quaternary Batchelor, C Ottesen, D Dowdeswell, JA Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
topic_facet |
contourites glacigenic debris-flows northern North Sea palaeo-ice stream Quaternary |
description |
The Norwegian Channel Ice Stream of the Scandinavian Ice Sheet extended across the northern North Sea margin during the mid- to late Quaternary, eroding older sediment from the continental shelf. Consequently, little is known about early Quaternary sedimentation on this margin. We use two- and three-dimensional seismic-reflection data to investigate changing sediment volumes and sources in the northern North Sea through the Quaternary. The northern North Sea Basin was infilled during the early Quaternary by intercalated glacigenic debris-flows and contourites, which provide a record of the delivery of glacigenic sediment to the slope and the intensity of North Atlantic thermohaline circulation during early Quaternary glacial-interglacial cycles. The infilling of the basin reduced accommodation and led to the deflection of mid- to late Quaternary sediments into the Norwegian Sea, forming the North Sea Fan. Close to the onset of the mid-Quaternary, the south-western Scandinavian Ice Sheet margin was drained by an ice stream located beneath Måløy Plateau, 60 km east of the Last Glacial Maximum Norwegian Channel Ice Stream. The southward-flowing Norwegian Sea Bottom Water current was directed into the partially filled northern North Sea Basin during the early Quaternary, and deflected progressively northwards as the basin became infilled. During this work, C. L. Batchelor was in receipt of a Junior Research Fellowship at Newnham College, Cambridge. |
format |
Article in Journal/Newspaper |
author |
Batchelor, C Ottesen, D Dowdeswell, JA |
author_facet |
Batchelor, C Ottesen, D Dowdeswell, JA |
author_sort |
Batchelor, C |
title |
Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
title_short |
Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
title_full |
Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
title_fullStr |
Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
title_full_unstemmed |
Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
title_sort |
quaternary evolution of the northern north sea margin through glacigenic debris-flow and contourite deposition |
publisher |
Wiley |
publishDate |
2017 |
url |
https://www.repository.cam.ac.uk/handle/1810/262906 https://doi.org/10.17863/CAM.8195 |
long_lat |
ENVELOPE(7.845,7.845,62.998,62.998) |
geographic |
Norwegian Sea Måløy |
geographic_facet |
Norwegian Sea Måløy |
genre |
Ice Sheet North Atlantic North atlantic Thermohaline circulation Norwegian Sea |
genre_facet |
Ice Sheet North Atlantic North atlantic Thermohaline circulation Norwegian Sea |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/262906 doi:10.17863/CAM.8195 |
op_doi |
https://doi.org/10.17863/CAM.8195 |
_version_ |
1789967014603784192 |