3D sedimentary architecture showing the inception of an Ice Age
Abstract: Northeast Atlantic climate shifted into the Quaternary Ice Age around 2.6 M yr ago. Until now, however, the detailed changes associated with this inception of an Ice Age have remained obscure. New high-quality three-dimensional seismic data reveal a detailed geological record of buried sur...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/306727 2023-07-30T04:04:13+02:00 3D sedimentary architecture showing the inception of an Ice Age Løseth, H. Dowdeswell, J. A. Batchelor, C. L. Ottesen, D. 2020-06-12T16:44:54Z text/xml application/pdf https://doi.org/10.17863/CAM.53815 https://www.repository.cam.ac.uk/handle/1810/306727 en eng Nature Publishing Group UK Nature Communications doi:10.17863/CAM.53815 https://www.repository.cam.ac.uk/handle/1810/306727 Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Article /704/106/413 /704/2151/213 /704/2151/213/4116 /704/2151/215 /134 /123 Article 2020 ftunivcam https://doi.org/10.17863/CAM.53815 2023-07-10T21:43:50Z Abstract: Northeast Atlantic climate shifted into the Quaternary Ice Age around 2.6 M yr ago. Until now, however, the detailed changes associated with this inception of an Ice Age have remained obscure. New high-quality three-dimensional seismic data reveal a detailed geological record of buried surfaces, landforms and sedimentary architecture over vast parts of the Norwegian North Sea. Here, we show the sequence of near-coast geological events spanning the Northeast Atlantic inception of an Ice Age. We identify the location of immediate pre-glacial fluvially derived sandy systems where rivers from the Norwegian mainland built marine deltas. The stratigraphic position of a large submarine channel, formed by enhanced meltwater from initial build-up of local glaciers, is also shown. Finally, we document the transition to full ice-sheet growth over Scandinavia from the ice sheet’s earliest position to the later pattern of debris-flow lobes reaching the present-day shelf edge. Article in Journal/Newspaper Ice Sheet Northeast Atlantic Apollo - University of Cambridge Repository |
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Apollo - University of Cambridge Repository |
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language |
English |
topic |
Article /704/106/413 /704/2151/213 /704/2151/213/4116 /704/2151/215 /134 /123 |
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Article /704/106/413 /704/2151/213 /704/2151/213/4116 /704/2151/215 /134 /123 Løseth, H. Dowdeswell, J. A. Batchelor, C. L. Ottesen, D. 3D sedimentary architecture showing the inception of an Ice Age |
topic_facet |
Article /704/106/413 /704/2151/213 /704/2151/213/4116 /704/2151/215 /134 /123 |
description |
Abstract: Northeast Atlantic climate shifted into the Quaternary Ice Age around 2.6 M yr ago. Until now, however, the detailed changes associated with this inception of an Ice Age have remained obscure. New high-quality three-dimensional seismic data reveal a detailed geological record of buried surfaces, landforms and sedimentary architecture over vast parts of the Norwegian North Sea. Here, we show the sequence of near-coast geological events spanning the Northeast Atlantic inception of an Ice Age. We identify the location of immediate pre-glacial fluvially derived sandy systems where rivers from the Norwegian mainland built marine deltas. The stratigraphic position of a large submarine channel, formed by enhanced meltwater from initial build-up of local glaciers, is also shown. Finally, we document the transition to full ice-sheet growth over Scandinavia from the ice sheet’s earliest position to the later pattern of debris-flow lobes reaching the present-day shelf edge. |
format |
Article in Journal/Newspaper |
author |
Løseth, H. Dowdeswell, J. A. Batchelor, C. L. Ottesen, D. |
author_facet |
Løseth, H. Dowdeswell, J. A. Batchelor, C. L. Ottesen, D. |
author_sort |
Løseth, H. |
title |
3D sedimentary architecture showing the inception of an Ice Age |
title_short |
3D sedimentary architecture showing the inception of an Ice Age |
title_full |
3D sedimentary architecture showing the inception of an Ice Age |
title_fullStr |
3D sedimentary architecture showing the inception of an Ice Age |
title_full_unstemmed |
3D sedimentary architecture showing the inception of an Ice Age |
title_sort |
3d sedimentary architecture showing the inception of an ice age |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
https://doi.org/10.17863/CAM.53815 https://www.repository.cam.ac.uk/handle/1810/306727 |
genre |
Ice Sheet Northeast Atlantic |
genre_facet |
Ice Sheet Northeast Atlantic |
op_relation |
doi:10.17863/CAM.53815 https://www.repository.cam.ac.uk/handle/1810/306727 |
op_rights |
Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.17863/CAM.53815 |
_version_ |
1772815471970615296 |