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Towards an improved sediment stratigraphy and Better understanding of the Pleistocene glacial history in the western Arctic Ocean

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Title
Towards an improved sediment stratigraphy and Better understanding of the Pleistocene glacial history in the western Arctic Ocean
Other Titles
개선 된 퇴적물 층서학 및 서 북극해의 홍적세 빙하 역사에 대한 더 나은 이해를 향하여
Authors
Schreck, Michael
Nam, Seung-il
Polyak, Leonid
Niessen, Frank
Joe, Young Jin
Park, Kwangkyu
Matthiessen, Jens
VOGT, CHRISTOPH
STEIN, RUDIGER
Keywords
Arctic Ocean
Issue Date
2018
Citation
Schreck, Michael, et al. 2018. Towards an improved sediment stratigraphy and Better understanding of the Pleistocene glacial history in the western Arctic Ocean. 9th International conference on Asian marine geology. Shanghai Tongji University. 2018.10.09~2018.10.12.
Abstract
While evidence for an extensive, Antarctic-style ice shelf covering the Arctic Ocean during some of the Pleistocene glaciations is growing, reliable constrains on chronostratigraphy and geographic distribution of these ice shelves are still very limited. We propose stratigraphic correlation of sediment cores, collected along with geophysical seafloor data from the East Siberian and Chukchi margins, aiming to improve our understanding of the timing and extent of major glacial advances in this part of the Arctic Ocean. The new data set presented includes a suite of high-quality sediment cores aligned in two transects, from the Siberian margin to the Chukchi Plateau and along the Mendeleev Ridge, which have been analyzed using continuous high-resolution scanning of colour reflectance, sediment density, magnetic susceptibility, and elemental composition. The analyzed cores reveal a coherent stratigraphic pattern that enables a robust correlation across the study area, and thus highlights the potential of such multiproxy approach for improving the stratigraphic framework for the history of glacial advances into the Arctic Ocean. Ultimately, the various lithostratigraphic units identified reflect different sedimentary processes, including glaciogenic erosion and deposition, allowing to reliably reconstruct the Pleistocene Arctic Ocean paleoenvironments.
URI
https://repository.kopri.re.kr/handle/201206/12616
Conference Name
9th International conference on Asian marine geology
Conference Place
Shanghai Tongji University
Conference Date
2018.10.09~2018.10.12
Type
Poster
Indexed
포스터
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)
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