Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history

doi:10.5194/cp-13-511-2017

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋地质与地球物理研究室

	Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history
	Dong, Linsen 1,2; Liu, Yanguang 1,2; Shi, Xuefa 1,2; Polyak, Leonid 3; Huang, Yuanhui 1,2; Fang, Xisheng 1; Liu, Jianxing 1,2; Zou, Jianjun 1,2; Wang, Kunshan 1,2; Sun, Fuqiang 1
刊名	CLIMATE OF THE PAST
	2017-05-23
卷号	13 期号:5 页码:511-531
ISSN号	1814-9324
DOI	10.5194/cp-13-511-2017
英文摘要	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 AMS(14)C 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.
URL标识	查看原文
资助项目	US National Science Foundation award[ARC-1304755]
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000401930200001
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3165]
专题	业务部门_海洋地质与地球物理研究室
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China; 3.Ohio State Univ, Byrd Polar & Climate Res Ctr, Columbus, OH 43210 USA; 4.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Dong, Linsen,Liu, Yanguang,Shi, Xuefa,et al. Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history[J]. CLIMATE OF THE PAST,2017,13(5):511-531.
APA	Dong, Linsen.,Liu, Yanguang.,Shi, Xuefa.,Polyak, Leonid.,Huang, Yuanhui.,...&Wang, Xuchen.(2017).Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history.CLIMATE OF THE PAST,13(5),511-531.
MLA	Dong, Linsen,et al."Sedimentary record from the Canada Basin, Arctic Ocean: implications for late to middle Pleistocene glacial history".CLIMATE OF THE PAST 13.5(2017):511-531.