An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic
The onset and evolution of the middle to late Cenozoic “icehouse” world was influenced by the development of the global ocean circulation linking the Norwegian–Greenland Sea-Arctic Ocean to the Atlantic Ocean. The evolution of the early Neogene to early Quaternary Bjørnøyrenna Drift, located at the...
Published in: | Geochemistry, Geophysics, Geosystems |
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Online Access: | https://hdl.handle.net/10037/19881 https://doi.org/10.1029/2020GC009142 |
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ftunivtroemsoe:oai:munin.uit.no:10037/19881 2023-05-15T14:23:03+02:00 An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic Rydningen, Tom Arne Høgseth, Gert Lasabuda, Amando Putra Ersaid Laberg, Jan Sverre Safronova, Polina Forwick, Matthias 2020-10-30 https://hdl.handle.net/10037/19881 https://doi.org/10.1029/2020GC009142 eng eng Wiley Geochemistry Geophysics Geosystems info:eu-repo/grantAgreement/RCN/PETROSENTR/228107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/ Rydningen TA, Høgseth G, Lasabuda AL, Laberg JS, Safronova P, Forwick M. An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic. Geochemistry Geophysics Geosystems. 2020;21(11) FRIDAID 1848799 https://doi.org/10.1029/2020GC009142 1525-2027 https://hdl.handle.net/10037/19881 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1029/2020GC009142 2021-06-25T17:57:48Z The onset and evolution of the middle to late Cenozoic “icehouse” world was influenced by the development of the global ocean circulation linking the Norwegian–Greenland Sea-Arctic Ocean to the Atlantic Ocean. The evolution of the early Neogene to early Quaternary Bjørnøyrenna Drift, located at the SW Barents Sea continental margin, shed new light on this important hydrological event. By analyzing seismic data and exploration wellbores, it is found that the drift likely started to form in the early/middle Miocene, probably as a result of an ocean circulation reorganization following the opening of the Fram Strait gateway (c. 17 Ma) and subsidence of the Greenland–Scotland Ridge (c. 12 Ma). Thus, the onset of drift growth is considered to have happened close in time to the Mid Miocene Climatic Optimum at 16–14 Ma, and was part of a regional onset of large-scale ocean circulation in the Norwegian–Greenland Sea that influenced the subsequent climate cooling. The drift continued to grow under the influence of early Quaternary glacimarine sedimentation, and later overtopping of the drift mound by downslope transfer of glacigenic sediments during full-glacial conditions resulted in a submarine failure. For the first time, minimum average sedimentation rates of a Neogene to Quaternary drift in this area is calculated, giving rates of 0.020–0.031 m/Kyr. These values are comparable to average deep-sea sedimentation rates from modern low-latitude river systems such as the Amazon and Mississippi, but lower than the Quaternary glacial sedimentation rates from the Barents Sea and Fennoscandian continental margins Article in Journal/Newspaper Arctic Arctic Arctic Ocean Barents Sea Fennoscandian Fram Strait Greenland Greenland Sea Greenland-Scotland Ridge University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Barents Sea Greenland Geochemistry, Geophysics, Geosystems 21 11 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Rydningen, Tom Arne Høgseth, Gert Lasabuda, Amando Putra Ersaid Laberg, Jan Sverre Safronova, Polina Forwick, Matthias An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
The onset and evolution of the middle to late Cenozoic “icehouse” world was influenced by the development of the global ocean circulation linking the Norwegian–Greenland Sea-Arctic Ocean to the Atlantic Ocean. The evolution of the early Neogene to early Quaternary Bjørnøyrenna Drift, located at the SW Barents Sea continental margin, shed new light on this important hydrological event. By analyzing seismic data and exploration wellbores, it is found that the drift likely started to form in the early/middle Miocene, probably as a result of an ocean circulation reorganization following the opening of the Fram Strait gateway (c. 17 Ma) and subsidence of the Greenland–Scotland Ridge (c. 12 Ma). Thus, the onset of drift growth is considered to have happened close in time to the Mid Miocene Climatic Optimum at 16–14 Ma, and was part of a regional onset of large-scale ocean circulation in the Norwegian–Greenland Sea that influenced the subsequent climate cooling. The drift continued to grow under the influence of early Quaternary glacimarine sedimentation, and later overtopping of the drift mound by downslope transfer of glacigenic sediments during full-glacial conditions resulted in a submarine failure. For the first time, minimum average sedimentation rates of a Neogene to Quaternary drift in this area is calculated, giving rates of 0.020–0.031 m/Kyr. These values are comparable to average deep-sea sedimentation rates from modern low-latitude river systems such as the Amazon and Mississippi, but lower than the Quaternary glacial sedimentation rates from the Barents Sea and Fennoscandian continental margins |
format |
Article in Journal/Newspaper |
author |
Rydningen, Tom Arne Høgseth, Gert Lasabuda, Amando Putra Ersaid Laberg, Jan Sverre Safronova, Polina Forwick, Matthias |
author_facet |
Rydningen, Tom Arne Høgseth, Gert Lasabuda, Amando Putra Ersaid Laberg, Jan Sverre Safronova, Polina Forwick, Matthias |
author_sort |
Rydningen, Tom Arne |
title |
An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
title_short |
An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
title_full |
An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
title_fullStr |
An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
title_full_unstemmed |
An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic |
title_sort |
early neogene—early quaternary contourite drift system on the sw barents sea continental margin, norwegian arctic |
publisher |
Wiley |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19881 https://doi.org/10.1029/2020GC009142 |
geographic |
Arctic Arctic Ocean Barents Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Barents Sea Greenland |
genre |
Arctic Arctic Arctic Ocean Barents Sea Fennoscandian Fram Strait Greenland Greenland Sea Greenland-Scotland Ridge |
genre_facet |
Arctic Arctic Arctic Ocean Barents Sea Fennoscandian Fram Strait Greenland Greenland Sea Greenland-Scotland Ridge |
op_relation |
Geochemistry Geophysics Geosystems info:eu-repo/grantAgreement/RCN/PETROSENTR/228107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/ Rydningen TA, Høgseth G, Lasabuda AL, Laberg JS, Safronova P, Forwick M. An Early Neogene—Early Quaternary Contourite Drift System on the SW Barents Sea Continental Margin, Norwegian Arctic. Geochemistry Geophysics Geosystems. 2020;21(11) FRIDAID 1848799 https://doi.org/10.1029/2020GC009142 1525-2027 https://hdl.handle.net/10037/19881 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1029/2020GC009142 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
21 |
container_issue |
11 |
_version_ |
1766295530258825216 |