Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic
The 290-km-long ‘Halibut Slide’ is the world’s largest epicontinental submarine landslide. Between 64 and 62 Ma, plume-related uplift in the North Atlantic and far-field stresses caused reactivation of major intra-plate faults. This reactivation caused instability of Cretaceous chalk slopes across t...
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ftumanchesterpub:oai:pure.atira.dk:publications/0a2b9882-f71d-4e00-b258-0294f83411cd 2024-06-23T07:54:59+00:00 Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic Soutter, Euan Kane, Ian Huuse, Mads 2018-04-16 https://research.manchester.ac.uk/en/publications/0a2b9882-f71d-4e00-b258-0294f83411cd https://doi.org/10.1130/G40308.1 https://publons.com/wos-op/publon/44557965/ eng eng https://research.manchester.ac.uk/en/publications/0a2b9882-f71d-4e00-b258-0294f83411cd info:eu-repo/semantics/openAccess Soutter , E , Kane , I & Huuse , M 2018 , ' Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic ' , Geology , vol. 46 , no. 6 , pp. 511-514 . https://doi.org/10.1130/G40308.1 article 2018 ftumanchesterpub https://doi.org/10.1130/G40308.1 2024-05-27T23:40:15Z The 290-km-long ‘Halibut Slide’ is the world’s largest epicontinental submarine landslide. Between 64 and 62 Ma, plume-related uplift in the North Atlantic and far-field stresses caused reactivation of major intra-plate faults. This reactivation caused instability of Cretaceous chalk slopes across the North Sea Basin, triggering the Halibut Slide. Megascours, up to 1 km wide, 150 m deep, and 70 km long, indicate slope failure from an intra-shelf high east of mainland Scotland, and subsequent flow down an ∼1.1° slope. Megascours were gouged by cuboid chalk blocks, up to 1 km wide and 170 m high, some of which out-ran the main slide body by up to 10 km. The Halibut Slide has a decompacted volume of 1450 km3 and a basal slide surface extending over ∼7000 km2. Subsequent clastic sediment input points and dispersal pathways were controlled by the underlying Slide topography for ∼10 m.y. The discovery of this major submarine landslide provides new insights into the response of sedimentary systems to regional and deeply rooted tectonic events, and the initiation of long-term sediment routing patterns. Article in Journal/Newspaper North Atlantic The University of Manchester: Research Explorer Geology 46 6 511 514 |
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Open Polar |
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The University of Manchester: Research Explorer |
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ftumanchesterpub |
language |
English |
description |
The 290-km-long ‘Halibut Slide’ is the world’s largest epicontinental submarine landslide. Between 64 and 62 Ma, plume-related uplift in the North Atlantic and far-field stresses caused reactivation of major intra-plate faults. This reactivation caused instability of Cretaceous chalk slopes across the North Sea Basin, triggering the Halibut Slide. Megascours, up to 1 km wide, 150 m deep, and 70 km long, indicate slope failure from an intra-shelf high east of mainland Scotland, and subsequent flow down an ∼1.1° slope. Megascours were gouged by cuboid chalk blocks, up to 1 km wide and 170 m high, some of which out-ran the main slide body by up to 10 km. The Halibut Slide has a decompacted volume of 1450 km3 and a basal slide surface extending over ∼7000 km2. Subsequent clastic sediment input points and dispersal pathways were controlled by the underlying Slide topography for ∼10 m.y. The discovery of this major submarine landslide provides new insights into the response of sedimentary systems to regional and deeply rooted tectonic events, and the initiation of long-term sediment routing patterns. |
format |
Article in Journal/Newspaper |
author |
Soutter, Euan Kane, Ian Huuse, Mads |
spellingShingle |
Soutter, Euan Kane, Ian Huuse, Mads Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
author_facet |
Soutter, Euan Kane, Ian Huuse, Mads |
author_sort |
Soutter, Euan |
title |
Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
title_short |
Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
title_full |
Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
title_fullStr |
Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
title_full_unstemmed |
Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic |
title_sort |
giant submarine landslide triggered by paleocene mantle plume activity in the north atlantic |
publishDate |
2018 |
url |
https://research.manchester.ac.uk/en/publications/0a2b9882-f71d-4e00-b258-0294f83411cd https://doi.org/10.1130/G40308.1 https://publons.com/wos-op/publon/44557965/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Soutter , E , Kane , I & Huuse , M 2018 , ' Giant submarine landslide triggered by Paleocene mantle plume activity in the North Atlantic ' , Geology , vol. 46 , no. 6 , pp. 511-514 . https://doi.org/10.1130/G40308.1 |
op_relation |
https://research.manchester.ac.uk/en/publications/0a2b9882-f71d-4e00-b258-0294f83411cd |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1130/G40308.1 |
container_title |
Geology |
container_volume |
46 |
container_issue |
6 |
container_start_page |
511 |
op_container_end_page |
514 |
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1802647362988933120 |