Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history
Sediment core ARC4-BN05 collected from the Canada Basin, Arctic Ocean, covers the late to middle Quaternary (Marine Isotope Stage – MIS – 1–15, ca. 0.5–0.6 Ma) as estimated by correlation to earlier proposed Arctic Ocean stratigraphies and AMS14C dating of the youngest sediments. Detailed examinatio...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00010045 2023-05-15T14:41:24+02:00 Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history Dong, Linsen Liu, Yanguang Shi, Xuefa Polyak, Leonid Huang, Yuanhui Fang, Xisheng Liu, Jianxing Zou, Jianjun Wang, Kunshan Sun, Fuqiang Wang, Xuchen 2017-05 electronic https://doi.org/10.5194/cp-13-511-2017 https://noa.gwlb.de/receive/cop_mods_00010045 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010002/cp-13-511-2017.pdf https://cp.copernicus.org/articles/13/511/2017/cp-13-511-2017.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-13-511-2017 https://noa.gwlb.de/receive/cop_mods_00010045 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010002/cp-13-511-2017.pdf https://cp.copernicus.org/articles/13/511/2017/cp-13-511-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/cp-13-511-2017 2022-02-08T22:57:16Z Sediment core ARC4-BN05 collected from the Canada Basin, Arctic Ocean, covers the late to middle Quaternary (Marine Isotope Stage – MIS – 1–15, ca. 0.5–0.6 Ma) as estimated by correlation to earlier proposed Arctic Ocean stratigraphies and AMS14C dating of the youngest sediments. Detailed examination of clay and bulk mineralogy along with grain size, content of Ca and Mn, and planktic foraminiferal numbers in core ARC4–BN05 provides important new information about sedimentary environments and provenance. We use increased contents of coarse debris as an indicator of glacier collapse events at the margins of the western Arctic Ocean, and identify the provenance of these events from mineralogical composition. Notably, peaks of dolomite debris, including large dropstones, track the Laurentide Ice Sheet (LIS) discharge events to the Arctic Ocean. Major LIS inputs occurred during the stratigraphic intervals estimated as MIS 3, intra-MIS 5 and 7 events, MIS 8, and MIS 10. Inputs from the East Siberian Ice Sheet (ESIS) are inferred from peaks of smectite, kaolinite, and chlorite associated with coarse sediment. Major ESIS sedimentary events occurred in the intervals estimated as MIS 4, MIS 6 and MIS 12. Differences in LIS vs. ESIS inputs can be explained by ice-sheet configurations at different sea levels, sediment delivery mechanisms (iceberg rafting, suspension plumes, and debris flows), and surface circulation. A long-term change in the pattern of sediment inputs, with an apparent step change near the estimated MIS 7–8 boundary (ca. 0.25 Ma), presumably indicates an overall glacial expansion at the western Arctic margins, especially in North America. Article in Journal/Newspaper Arctic Arctic Ocean canada basin Foraminifera* glacier* Ice Sheet Iceberg* Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean Canada Climate of the Past 13 5 511 531 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Dong, Linsen Liu, Yanguang Shi, Xuefa Polyak, Leonid Huang, Yuanhui Fang, Xisheng Liu, Jianxing Zou, Jianjun Wang, Kunshan Sun, Fuqiang Wang, Xuchen Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
topic_facet |
article Verlagsveröffentlichung |
description |
Sediment core ARC4-BN05 collected from the Canada Basin, Arctic Ocean, covers the late to middle Quaternary (Marine Isotope Stage – MIS – 1–15, ca. 0.5–0.6 Ma) as estimated by correlation to earlier proposed Arctic Ocean stratigraphies and AMS14C dating of the youngest sediments. Detailed examination of clay and bulk mineralogy along with grain size, content of Ca and Mn, and planktic foraminiferal numbers in core ARC4–BN05 provides important new information about sedimentary environments and provenance. We use increased contents of coarse debris as an indicator of glacier collapse events at the margins of the western Arctic Ocean, and identify the provenance of these events from mineralogical composition. Notably, peaks of dolomite debris, including large dropstones, track the Laurentide Ice Sheet (LIS) discharge events to the Arctic Ocean. Major LIS inputs occurred during the stratigraphic intervals estimated as MIS 3, intra-MIS 5 and 7 events, MIS 8, and MIS 10. Inputs from the East Siberian Ice Sheet (ESIS) are inferred from peaks of smectite, kaolinite, and chlorite associated with coarse sediment. Major ESIS sedimentary events occurred in the intervals estimated as MIS 4, MIS 6 and MIS 12. Differences in LIS vs. ESIS inputs can be explained by ice-sheet configurations at different sea levels, sediment delivery mechanisms (iceberg rafting, suspension plumes, and debris flows), and surface circulation. A long-term change in the pattern of sediment inputs, with an apparent step change near the estimated MIS 7–8 boundary (ca. 0.25 Ma), presumably indicates an overall glacial expansion at the western Arctic margins, especially in North America. |
format |
Article in Journal/Newspaper |
author |
Dong, Linsen Liu, Yanguang Shi, Xuefa Polyak, Leonid Huang, Yuanhui Fang, Xisheng Liu, Jianxing Zou, Jianjun Wang, Kunshan Sun, Fuqiang Wang, Xuchen |
author_facet |
Dong, Linsen Liu, Yanguang Shi, Xuefa Polyak, Leonid Huang, Yuanhui Fang, Xisheng Liu, Jianxing Zou, Jianjun Wang, Kunshan Sun, Fuqiang Wang, Xuchen |
author_sort |
Dong, Linsen |
title |
Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
title_short |
Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
title_full |
Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
title_fullStr |
Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
title_full_unstemmed |
Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history |
title_sort |
sedimentary record from the canada basin, arctic ocean: implications for late to middle pleistocene glacial history |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/cp-13-511-2017 https://noa.gwlb.de/receive/cop_mods_00010045 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010002/cp-13-511-2017.pdf https://cp.copernicus.org/articles/13/511/2017/cp-13-511-2017.pdf |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean canada basin Foraminifera* glacier* Ice Sheet Iceberg* |
genre_facet |
Arctic Arctic Ocean canada basin Foraminifera* glacier* Ice Sheet Iceberg* |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-13-511-2017 https://noa.gwlb.de/receive/cop_mods_00010045 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00010002/cp-13-511-2017.pdf https://cp.copernicus.org/articles/13/511/2017/cp-13-511-2017.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-13-511-2017 |
container_title |
Climate of the Past |
container_volume |
13 |
container_issue |
5 |
container_start_page |
511 |
op_container_end_page |
531 |
_version_ |
1766313180468871168 |