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...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/36783/ https://oceanrep.geomar.de/id/eprint/36783/1/Batchelor.pdf https://doi.org/10.1002/jqs.2934 |
id |
ftoceanrep:oai:oceanrep.geomar.de:36783 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:36783 2023-05-15T16:40:33+02:00 Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition Batchelor, Christine L. Ottesen, Dag Dowdeswell, Julian A. 2017 text https://oceanrep.geomar.de/id/eprint/36783/ https://oceanrep.geomar.de/id/eprint/36783/1/Batchelor.pdf https://doi.org/10.1002/jqs.2934 en eng Wiley https://oceanrep.geomar.de/id/eprint/36783/1/Batchelor.pdf Batchelor, C. L., Ottesen, D. and Dowdeswell, J. A. (2017) Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition. Journal of Quaternary Science . DOI 10.1002/jqs.2934 <https://doi.org/10.1002/jqs.2934>. doi:10.1002/jqs.2934 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1002/jqs.2934 2023-04-07T15:31:27Z 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 threedimensional 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 Målùy 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. Article in Journal/Newspaper Ice Sheet North Atlantic North atlantic Thermohaline circulation Norwegian Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Norwegian Sea Journal of Quaternary Science 32 3 416 426 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
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 threedimensional 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 Målùy 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. |
format |
Article in Journal/Newspaper |
author |
Batchelor, Christine L. Ottesen, Dag Dowdeswell, Julian A. |
spellingShingle |
Batchelor, Christine L. Ottesen, Dag Dowdeswell, Julian A. Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition |
author_facet |
Batchelor, Christine L. Ottesen, Dag Dowdeswell, Julian A. |
author_sort |
Batchelor, Christine L. |
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://oceanrep.geomar.de/id/eprint/36783/ https://oceanrep.geomar.de/id/eprint/36783/1/Batchelor.pdf https://doi.org/10.1002/jqs.2934 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
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://oceanrep.geomar.de/id/eprint/36783/1/Batchelor.pdf Batchelor, C. L., Ottesen, D. and Dowdeswell, J. A. (2017) Quaternary evolution of the northern North Sea margin through glacigenic debris-flow and contourite deposition. Journal of Quaternary Science . DOI 10.1002/jqs.2934 <https://doi.org/10.1002/jqs.2934>. doi:10.1002/jqs.2934 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/jqs.2934 |
container_title |
Journal of Quaternary Science |
container_volume |
32 |
container_issue |
3 |
container_start_page |
416 |
op_container_end_page |
426 |
_version_ |
1766030947259514880 |