KOPRI Repository

Improved Pleistocene sediment stratigraphy and paleoenvironmental implications for the western Arctic Ocean off the East Siberian and Chukchi margins

Cited 0 time in wos
Cited 0 time in scopus

Full metadata record

DC Field Value Language
dc.contributor.authorSchreck, Michael-
dc.contributor.authorNam, Seung-il-
dc.contributor.authorPolyak, L.-
dc.contributor.authorVogt, C.-
dc.contributor.authorKong, G.S.-
dc.contributor.authorStein, R.-
dc.contributor.authorMatthiessen, J.-
dc.contributor.authorNiessen, F.-
dc.date.accessioned2020-10-20T01:24:19Z-
dc.date.available2020-10-20T01:24:19Z-
dc.date.issued2018-07-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/10870-
dc.description.abstractSediment cores from the East Siberian and Chukchi margins and adjacent basins are used to refine the upper Pleistocene stratigraphy and better constrain the timing of major glacial advances in the western Arctic Ocean. Cores have been analysed using high-resolution non-destructive physical properties (density, magnetic susceptibility and colour) and X-ray fluorescence elemental measurements (manganese and calcium contents). All analysed cores reveal a spatially coherent stratigraphic pattern that enables robust correlations from the East Siberian margin to the Mendeleev and Northwind Ridges, thus highlighting the potential of such multiproxy approach for improving stratigraphic framework. The distribution of sedimentary units resulting from core correlation indicates decreasing sedimentation rates by more than one order of magnitude from the East Siberian margin east- and northwards, reflecting an increased distance from the main sediment sources, increasing seaice cover, and longer residence times in the Beaufort Gyre circulation. The stratigraphy presented, consistent with existing geophysical data, indicates the most recent major glacial advance from the East Siberian margin with ice grounding at water depth > 800?m during estimated Marine Isotope Stages 4/3, roughly contemporaneous with the Middle Weichselian glaciation in northern Eurasia. Earlier glacial events are potentially indicated by glaciogenic units in cores away from the margin, where they are not overprinted by a younger ice advance. Sediment thickness increase towards the Siberian margin also suggests the possibility of a limited MIS 2 glaciation, although no direct evidence for such an ice sheet has been found thus far.en_US
dc.languageEnglishen_US
dc.subject.classificationAraonen_US
dc.titleImproved Pleistocene sediment stratigraphy and paleoenvironmental implications for the western Arctic Ocean off the East Siberian and Chukchi marginsen_US
dc.title.alternative서북극해 동시베리아와 척치 주변부 퇴적층서 향상과 고환경적 의미en_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationSchreck, Michael, et al. 2018. "Improved Pleistocene sediment stratigraphy and paleoenvironmental implications for the western Arctic Ocean off the East Siberian and Chukchi margins". <em>ARKTOS</em>, 4(21): 1-20.-
dc.citation.titleARKTOSen_US
dc.citation.volume4en_US
dc.citation.number21en_US
dc.identifier.doi10.1007/s41063-018-0057-8-
dc.citation.startPage1en_US
dc.citation.endPage20en_US
dc.description.articleClassification국외기타-
dc.description.jcrRateJCR 2016:0en_US
dc.subject.keywordArctic Oceanen_US
dc.subject.keywordLithostratigraphyen_US
dc.subject.keywordMiddle Weichselian glaciationen_US
dc.subject.keywordMiddle and Late Weichselian glaciationen_US
dc.subject.keywordNon-destructive measurementsen_US
dc.subject.keywordRV Araonen_US
dc.subject.keywordStratigraphyen_US
dc.identifier.localId2018-0055-
Appears in Collections  
2018-2018, Based Research on International Joint Drilling for Reconstructing Evolution and Glacial History of the Arctic Ocean (18-18) / Nam, Seung-il (PE18350)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse