Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions
Drift deposits document stages of particular dynamic bottom-currents and associated sedimentary transport activities. The analysis of seismic reflection data from the Amundsen Sea, southern Pacific Ocean, reveals sediment drift formation already in Eocene/Oligocene times. This observation indicates...
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Online Access: | https://epic.awi.de/id/eprint/25584/ https://hdl.handle.net/10013/epic.38787 |
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ftawi:oai:epic.awi.de:25584 2023-05-15T13:23:39+02:00 Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions Uenzelmann-Neben, Gabriele Gohl, Karsten 2012-03 https://epic.awi.de/id/eprint/25584/ https://hdl.handle.net/10013/epic.38787 unknown ELSEVIER SCIENCE BV Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 and Gohl, K. orcid:0000-0002-9558-2116 (2012) Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions , Marine Geology, 299-30 , pp. 51-62 . doi:10.1016/j.margeo.2011.12.007 <https://doi.org/10.1016/j.margeo.2011.12.007> , hdl:10013/epic.38787 EPIC3Marine Geology, ELSEVIER SCIENCE BV, 299-30, pp. 51-62, ISSN: 0025-3227 Article isiRev 2012 ftawi https://doi.org/10.1016/j.margeo.2011.12.007 2021-12-24T15:35:27Z Drift deposits document stages of particular dynamic bottom-currents and associated sedimentary transport activities. The analysis of seismic reflection data from the Amundsen Sea, southern Pacific Ocean, reveals sediment drift formation already in Eocene/Oligocene times. This observation indicates bottom current activity and hence a cold climate for the late Palaeogene in an area, which today lies under the influence of Antarctic Bottom Water (AABW) originating in the Ross Sea. The generation of sediment drifts is accompanied by the occurrence of mass transport deposits leading to the identification of a phase of strong ice sheet expansion (15-4 Ma), which due to a change in ice regime from wet- to dry-based was followed by less material input during the last 4 Ma. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Ice Sheet Ross Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Ross Sea Amundsen Sea Pacific Marine Geology 299-302 51 62 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Drift deposits document stages of particular dynamic bottom-currents and associated sedimentary transport activities. The analysis of seismic reflection data from the Amundsen Sea, southern Pacific Ocean, reveals sediment drift formation already in Eocene/Oligocene times. This observation indicates bottom current activity and hence a cold climate for the late Palaeogene in an area, which today lies under the influence of Antarctic Bottom Water (AABW) originating in the Ross Sea. The generation of sediment drifts is accompanied by the occurrence of mass transport deposits leading to the identification of a phase of strong ice sheet expansion (15-4 Ma), which due to a change in ice regime from wet- to dry-based was followed by less material input during the last 4 Ma. |
format |
Article in Journal/Newspaper |
author |
Uenzelmann-Neben, Gabriele Gohl, Karsten |
spellingShingle |
Uenzelmann-Neben, Gabriele Gohl, Karsten Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
author_facet |
Uenzelmann-Neben, Gabriele Gohl, Karsten |
author_sort |
Uenzelmann-Neben, Gabriele |
title |
Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
title_short |
Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
title_full |
Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
title_fullStr |
Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
title_full_unstemmed |
Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions |
title_sort |
amundsen sea sediment drifts: archives of modifications in oceanographic and climatic conditions |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/25584/ https://hdl.handle.net/10013/epic.38787 |
geographic |
Antarctic Ross Sea Amundsen Sea Pacific |
geographic_facet |
Antarctic Ross Sea Amundsen Sea Pacific |
genre |
Amundsen Sea Antarc* Antarctic Ice Sheet Ross Sea |
genre_facet |
Amundsen Sea Antarc* Antarctic Ice Sheet Ross Sea |
op_source |
EPIC3Marine Geology, ELSEVIER SCIENCE BV, 299-30, pp. 51-62, ISSN: 0025-3227 |
op_relation |
Uenzelmann-Neben, G. orcid:0000-0002-0115-5923 and Gohl, K. orcid:0000-0002-9558-2116 (2012) Amundsen Sea sediment drifts: Archives of modifications in oceanographic and climatic conditions , Marine Geology, 299-30 , pp. 51-62 . doi:10.1016/j.margeo.2011.12.007 <https://doi.org/10.1016/j.margeo.2011.12.007> , hdl:10013/epic.38787 |
op_doi |
https://doi.org/10.1016/j.margeo.2011.12.007 |
container_title |
Marine Geology |
container_volume |
299-302 |
container_start_page |
51 |
op_container_end_page |
62 |
_version_ |
1766373828264460288 |