Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean
Sediment cores from the Northwind Ridge north of the Arctic Chukchi-Alaskan margin were analyzed for a suite of stratigraphic and provenance proxies. Based on the correlation to previously studied regional records, cores under study present sedimentary environments of Marine Isotope Stages (MIS) 1e1...
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Online Access: | https://epic.awi.de/id/eprint/53840/ https://hdl.handle.net/10013/epic.630212de-f1ce-4e20-bff4-1a1e6ae879d1 |
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ftawi:oai:epic.awi.de:53840 2023-05-15T14:27:17+02:00 Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean Wang, Rong Polyak, Leonid Zhang, Weiyan Yu, Xiaoguo Ye, Liming Dong, Linsen Liu, Yanguang Wang, Weiguo Diekmann, Bernhard 2021 https://epic.awi.de/id/eprint/53840/ https://hdl.handle.net/10013/epic.630212de-f1ce-4e20-bff4-1a1e6ae879d1 unknown PERGAMON-ELSEVIER SCIENCE LTD Wang, R. , Polyak, L. , Zhang, W. , Yu, X. , Ye, L. , Dong, L. , Liu, Y. , Wang, W. and Diekmann, B. orcid:0000-0001-5129-3649 (2021) Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean , Quaternary Science Reviews, 258 , p. 106882 . doi:10.1016/j.quascirev.2021.106882 <https://doi.org/10.1016/j.quascirev.2021.106882> , hdl:10013/epic.630212de-f1ce-4e20-bff4-1a1e6ae879d1 EPIC3Quaternary Science Reviews, PERGAMON-ELSEVIER SCIENCE LTD, 258, pp. 106882, ISSN: 0277-3791 Article isiRev 2021 ftawi https://doi.org/10.1016/j.quascirev.2021.106882 2021-12-24T15:46:13Z Sediment cores from the Northwind Ridge north of the Arctic Chukchi-Alaskan margin were analyzed for a suite of stratigraphic and provenance proxies. Based on the correlation to previously studied regional records, cores under study present sedimentary environments of Marine Isotope Stages (MIS) 1e11 (~0.4 Ma) on millennial time scales. Contrasting glacial-interglacial conditions and provenance were characterized by means of clay-mineral and geochemical (elemental and isotopic) proxies along with grain size. Interglacial environments are interpreted as sea-ice dominated, with pre-Holocene sediment transported mostly from the East Siberian to Chukchi-Alaskan margin. In comparison with the recent conditions, this pattern suggests a stronger Transpolar Drift expanding into the Canada Basin at the expense of the Beaufort Gyre, or stronger along-shelf currents. Glacial intervals prior to MIS4 have a predominantly North American signature with carbonaceous or terrigenous source rocks. Carbonaceous inputs marked by Ca peaks are tracked to the western Canadian Arctic Archipelago eroded by the Laurentide Ice Sheet (LIS). Terrigenous sources (Zr peaks) are likely related to areas impacted by the Innuitian Ice Sheet and/or the LIS Mackenzie ice stream. MIS 4 and 2 intervals have a different composition with the Siberian/Chukchi rather than North American provenance. A stronger winnowing indicated by grain size in the glacial intervals suggests a stronger mid-depth circulation. Study results provide new boundary conditions for modeling paleocirculation and glaciations in the western Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Archipelago Arctic Arctic Ocean canada basin Canadian Arctic Archipelago Chukchi Ice Sheet Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Canada Canadian Arctic Archipelago Quaternary Science Reviews 258 106882 |
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 |
Sediment cores from the Northwind Ridge north of the Arctic Chukchi-Alaskan margin were analyzed for a suite of stratigraphic and provenance proxies. Based on the correlation to previously studied regional records, cores under study present sedimentary environments of Marine Isotope Stages (MIS) 1e11 (~0.4 Ma) on millennial time scales. Contrasting glacial-interglacial conditions and provenance were characterized by means of clay-mineral and geochemical (elemental and isotopic) proxies along with grain size. Interglacial environments are interpreted as sea-ice dominated, with pre-Holocene sediment transported mostly from the East Siberian to Chukchi-Alaskan margin. In comparison with the recent conditions, this pattern suggests a stronger Transpolar Drift expanding into the Canada Basin at the expense of the Beaufort Gyre, or stronger along-shelf currents. Glacial intervals prior to MIS4 have a predominantly North American signature with carbonaceous or terrigenous source rocks. Carbonaceous inputs marked by Ca peaks are tracked to the western Canadian Arctic Archipelago eroded by the Laurentide Ice Sheet (LIS). Terrigenous sources (Zr peaks) are likely related to areas impacted by the Innuitian Ice Sheet and/or the LIS Mackenzie ice stream. MIS 4 and 2 intervals have a different composition with the Siberian/Chukchi rather than North American provenance. A stronger winnowing indicated by grain size in the glacial intervals suggests a stronger mid-depth circulation. Study results provide new boundary conditions for modeling paleocirculation and glaciations in the western Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Wang, Rong Polyak, Leonid Zhang, Weiyan Yu, Xiaoguo Ye, Liming Dong, Linsen Liu, Yanguang Wang, Weiguo Diekmann, Bernhard |
spellingShingle |
Wang, Rong Polyak, Leonid Zhang, Weiyan Yu, Xiaoguo Ye, Liming Dong, Linsen Liu, Yanguang Wang, Weiguo Diekmann, Bernhard Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
author_facet |
Wang, Rong Polyak, Leonid Zhang, Weiyan Yu, Xiaoguo Ye, Liming Dong, Linsen Liu, Yanguang Wang, Weiguo Diekmann, Bernhard |
author_sort |
Wang, Rong |
title |
Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
title_short |
Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
title_full |
Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
title_fullStr |
Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
title_full_unstemmed |
Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean |
title_sort |
glacial-interglacial sedimentation and paleocirculation at the northwind ridge, western arctic ocean |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/53840/ https://hdl.handle.net/10013/epic.630212de-f1ce-4e20-bff4-1a1e6ae879d1 |
geographic |
Arctic Arctic Ocean Canada Canadian Arctic Archipelago |
geographic_facet |
Arctic Arctic Ocean Canada Canadian Arctic Archipelago |
genre |
Arctic Arctic Archipelago Arctic Arctic Ocean canada basin Canadian Arctic Archipelago Chukchi Ice Sheet Sea ice |
genre_facet |
Arctic Arctic Archipelago Arctic Arctic Ocean canada basin Canadian Arctic Archipelago Chukchi Ice Sheet Sea ice |
op_source |
EPIC3Quaternary Science Reviews, PERGAMON-ELSEVIER SCIENCE LTD, 258, pp. 106882, ISSN: 0277-3791 |
op_relation |
Wang, R. , Polyak, L. , Zhang, W. , Yu, X. , Ye, L. , Dong, L. , Liu, Y. , Wang, W. and Diekmann, B. orcid:0000-0001-5129-3649 (2021) Glacial-interglacial sedimentation and paleocirculation at the Northwind Ridge, western Arctic Ocean , Quaternary Science Reviews, 258 , p. 106882 . doi:10.1016/j.quascirev.2021.106882 <https://doi.org/10.1016/j.quascirev.2021.106882> , hdl:10013/epic.630212de-f1ce-4e20-bff4-1a1e6ae879d1 |
op_doi |
https://doi.org/10.1016/j.quascirev.2021.106882 |
container_title |
Quaternary Science Reviews |
container_volume |
258 |
container_start_page |
106882 |
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1766300928625868800 |