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dc.contributor.authorLimoges, Audrey
dc.contributor.authorRibeiro, Sofia
dc.contributor.authorWeckström, Kaarina
dc.contributor.authorHeikkilä, Maija
dc.contributor.authorZamelczyk, Katarzyna
dc.contributor.authorAndersen, Thorbjørn J.
dc.contributor.authorTallberg, Petra
dc.contributor.authorMassé, Guillaume
dc.contributor.authorRysgaard, Søren
dc.contributor.authorNørgaard-Pedersen, Niels
dc.contributor.authorSeidenkrantz, Marit-Solveig
dc.date.accessioned2018-09-25T08:45:01Z
dc.date.available2018-09-25T08:45:01Z
dc.date.issued2018-01-09
dc.description.abstractThe eastern north coast of Greenland is considered to be highly sensitive to the ongoing Arctic warming, but there is a general lack of data on modern conditions and in particular on the modern distribution of climate and environmental proxies to provide a baseline and context for studies on past variability. Here we present a detailed investigation of 11 biogenic proxies preserved in surface sediments from the remote High Arctic Wandel Sea shelf, the entrance to the Independence, Hagen, and Danmark fjords. The composition of organic matter (organic carbon, C:N ratios, δ<sup>13</sup>C, δ<sup>15</sup>N, biogenic silica, and IP<sub>25</sub>) and microfossil assemblages revealed an overall low primary production dominated by benthic diatoms, especially at the shallow sites. While the benthic and planktic foraminiferal assemblages underline the intrusion of chilled Atlantic waters into the deeper parts of the study area, the distribution of organic‐walled dinoflagellate cysts is controlled by the local bathymetry and sea ice conditions. The distribution of the dinoflagellate cyst Polarella glacialis matches that of seasonal sea ice and the specific biomarker IP<sub>25</sub>, highlighting the potential of this species for paleo sea ice studies. The information inferred from our multiproxy study has important implications for the interpretation of the biogenic‐proxy signal preserved in sediments from circum‐Arctic fjords and shelf regions and can serve as a baseline for future studies. This is the first study of its kind in this area.en_US
dc.description.sponsorshipVillum Foundation Danish Council for Independent Research Fonds de Recherche du Québec ‐ Nature et technologies Academy of Finland Canada Excellence Research Chair program Independent Research Fund Denmarken_US
dc.descriptionAn edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union. Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J, ... Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. <i>Journal of Geophysical Research: Biogeosciences</i>, 123(3), 760-786. https://doi.org/10.1002/2017JG003840. To view the published open abstract, go to <a href=https://doi.org/10.1002/2017JG003840> https://doi.org/10.1002/2017JG003840</a>.en_US
dc.identifier.citationLimoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J., ... Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. Journal of Geophysical Research: Biogeosciences, 123(3), 760-786. https://doi.org/10.1002/2017JG003840en_US
dc.identifier.cristinIDFRIDAID 1555776
dc.identifier.doi10.1002/2017JG003840
dc.identifier.issn2169-8953
dc.identifier.issn2169-8961
dc.identifier.urihttps://hdl.handle.net/10037/13860
dc.language.isoengen_US
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.journalJournal of Geophysical Research - Biogeosciences
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456en_US
dc.subjectArctic sea iceen_US
dc.subjectGreenland fjordsen_US
dc.subjectpaleoclimateen_US
dc.subjectmicrofossilsen_US
dc.subjectbiomarkersen_US
dc.titleLinking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflowen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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