Surface sediment characteristics in the Drake Passage sector of the Southern Ocean
Understanding present-day sediment provenance and transport processes is crucial for studies about the dynamics of ocean circulation, as well as for paleoclimate reconstructions in the Drake Passage (DP), a key area for Earth's global oceanic circulation and climate during past and future. Base...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907141 2023-05-15T14:04:57+02:00 Surface sediment characteristics in the Drake Passage sector of the Southern Ocean Wu, Shuzhuang Kuhn, Gerhard Diekmann, Bernhard Lembke-Jene, Lester Tiedemann, Ralf Zheng, Xufeng Ehrhardt, Sophie Arz, Helge Wolfgang Lamy, Frank MEDIAN LATITUDE: -58.273527 * MEDIAN LONGITUDE: -66.805454 * SOUTH-BOUND LATITUDE: -63.757000 * WEST-BOUND LONGITUDE: -76.647500 * NORTH-BOUND LATITUDE: -52.442330 * EAST-BOUND LONGITUDE: -55.647000 * DATE/TIME START: 2016-02-24T22:16:00 * DATE/TIME END: 2016-04-03T02:42:00 2019-10-07 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.907141 https://doi.org/10.1594/PANGAEA.907141 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.907141 https://doi.org/10.1594/PANGAEA.907141 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Wu, Shuzhuang; Kuhn, Gerhard; Diekmann, Bernhard; Lembke-Jene, Lester; Tiedemann, Ralf; Zheng, Xufeng; Ehrhardt, Sophie; Arz, Helge Wolfgang; Lamy, Frank (2019): Surface sediment characteristics related to provenance and ocean circulation in the Drake Passage sector of the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 154, 103135, https://doi.org/10.1016/j.dsr.2019.103135 AWI_Envi AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polar Terrestrial Environmental Systems @ AWI Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.907141 https://doi.org/10.1016/j.dsr.2019.103135 2023-01-20T07:34:25Z Understanding present-day sediment provenance and transport processes is crucial for studies about the dynamics of ocean circulation, as well as for paleoclimate reconstructions in the Drake Passage (DP), a key area for Earth's global oceanic circulation and climate during past and future. Based on a comprehensive set of surface sediment samples, we used spatial variations in grain-size distribution, bulk sediment mineralogy, silt and clay mineralogy across the entire DP region to elucidate the terrigenous sources and transport mechanisms. The statistical evaluation of these data identifies southern Patagonia (carbonate, illite, chlorite, feldspar and quartz) and the Antarctic Peninsula (chlorite, smectite, and amphibole) as the main sources for terrigenous sediments in the DP region. Different current systems are transporting the sediment material. Here, we provide a new, robust flow speed calibration for silt grain-sizes to enable the reconstruction of Antarctic Circumpolar Current (ACC) dynamics in the DP sector of the Southern Ocean. We correlated the sortable silt mean grain-size records of surface sediments with adjacent long-term current meter data. A clear bottom current speed pattern shows the variability of the ACC in the DP responding to the dynamics of ocean fronts, in agreement with modern observation. Dataset Antarc* Antarctic Antarctic Peninsula Drake Passage Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Southern Ocean The Antarctic Antarctic Peninsula Patagonia Drake Passage ENVELOPE(-76.647500,-55.647000,-52.442330,-63.757000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Envi AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polar Terrestrial Environmental Systems @ AWI |
spellingShingle |
AWI_Envi AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polar Terrestrial Environmental Systems @ AWI Wu, Shuzhuang Kuhn, Gerhard Diekmann, Bernhard Lembke-Jene, Lester Tiedemann, Ralf Zheng, Xufeng Ehrhardt, Sophie Arz, Helge Wolfgang Lamy, Frank Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
topic_facet |
AWI_Envi AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polar Terrestrial Environmental Systems @ AWI |
description |
Understanding present-day sediment provenance and transport processes is crucial for studies about the dynamics of ocean circulation, as well as for paleoclimate reconstructions in the Drake Passage (DP), a key area for Earth's global oceanic circulation and climate during past and future. Based on a comprehensive set of surface sediment samples, we used spatial variations in grain-size distribution, bulk sediment mineralogy, silt and clay mineralogy across the entire DP region to elucidate the terrigenous sources and transport mechanisms. The statistical evaluation of these data identifies southern Patagonia (carbonate, illite, chlorite, feldspar and quartz) and the Antarctic Peninsula (chlorite, smectite, and amphibole) as the main sources for terrigenous sediments in the DP region. Different current systems are transporting the sediment material. Here, we provide a new, robust flow speed calibration for silt grain-sizes to enable the reconstruction of Antarctic Circumpolar Current (ACC) dynamics in the DP sector of the Southern Ocean. We correlated the sortable silt mean grain-size records of surface sediments with adjacent long-term current meter data. A clear bottom current speed pattern shows the variability of the ACC in the DP responding to the dynamics of ocean fronts, in agreement with modern observation. |
format |
Dataset |
author |
Wu, Shuzhuang Kuhn, Gerhard Diekmann, Bernhard Lembke-Jene, Lester Tiedemann, Ralf Zheng, Xufeng Ehrhardt, Sophie Arz, Helge Wolfgang Lamy, Frank |
author_facet |
Wu, Shuzhuang Kuhn, Gerhard Diekmann, Bernhard Lembke-Jene, Lester Tiedemann, Ralf Zheng, Xufeng Ehrhardt, Sophie Arz, Helge Wolfgang Lamy, Frank |
author_sort |
Wu, Shuzhuang |
title |
Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
title_short |
Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
title_full |
Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
title_fullStr |
Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
title_full_unstemmed |
Surface sediment characteristics in the Drake Passage sector of the Southern Ocean |
title_sort |
surface sediment characteristics in the drake passage sector of the southern ocean |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.907141 https://doi.org/10.1594/PANGAEA.907141 |
op_coverage |
MEDIAN LATITUDE: -58.273527 * MEDIAN LONGITUDE: -66.805454 * SOUTH-BOUND LATITUDE: -63.757000 * WEST-BOUND LONGITUDE: -76.647500 * NORTH-BOUND LATITUDE: -52.442330 * EAST-BOUND LONGITUDE: -55.647000 * DATE/TIME START: 2016-02-24T22:16:00 * DATE/TIME END: 2016-04-03T02:42:00 |
long_lat |
ENVELOPE(-76.647500,-55.647000,-52.442330,-63.757000) |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Patagonia Drake Passage |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Patagonia Drake Passage |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage Southern Ocean |
op_source |
Supplement to: Wu, Shuzhuang; Kuhn, Gerhard; Diekmann, Bernhard; Lembke-Jene, Lester; Tiedemann, Ralf; Zheng, Xufeng; Ehrhardt, Sophie; Arz, Helge Wolfgang; Lamy, Frank (2019): Surface sediment characteristics related to provenance and ocean circulation in the Drake Passage sector of the Southern Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 154, 103135, https://doi.org/10.1016/j.dsr.2019.103135 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.907141 https://doi.org/10.1594/PANGAEA.907141 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.907141 https://doi.org/10.1016/j.dsr.2019.103135 |
_version_ |
1766276415611731968 |