Paleoenvironmental changes in the East/Japan Sea during the last 48 ka: indications from high-resolution X-ray fluorescence core scanning

doi:10.1002/jqs.2583

	Paleoenvironmental changes in the East/Japan Sea during the last 48 ka: indications from high-resolution X-ray fluorescence core scanning
	Yao, Zhengquan 1; Liu, Yanguang 1; Shi, Xuefa 1; Suk, Bong-Chool 2
刊名	JOURNAL OF QUATERNARY SCIENCE
	2012-12
卷号	27 期号:9 页码:932-940
关键词	Dansgaard-Oeschger cycles East/Japan Sea XRF core scanning Monsoon late Quaternary
ISSN号	0267-8179
DOI	10.1002/jqs.2583
英文摘要	Paleoceanographic changes in the East/Japan Sea during the late Quaternary based on high-resolution elemental variations, particularly correlations between darklight laminations and millennial-scale climatic changes, have remained poorly understood because of the lack of the high-resolution proxies. The recent application of micro-X-ray fluorescence (XRF) core scanning provides the potential for high-resolution study on the laminations deposited in the East/Japan Sea. In this study, we present a geochemical study by using micro-XRF core scanning on a 730?cm core recovered from the East/Japan Sea. Elemental variations and factor analysis indicate that the sedimentary environment changed from anoxic to suboxic conditions from Marine Isotope Stage (MIS) 23 to MIS 1, which is induced by increased contribution of high-salinity sea water from the open ocean due to the rising sea level. The dark and light laminations during MIS 23 were correlated with DansgaardOeschger cycles and summer monsoon proxy, with dark-colored sediments related to higher terrigenous concentration, corresponding to warmmoist and enhanced summer monsoon period. During the interstadial period, more terrigenous sediments were transported to the East/Japan Sea via the strengthened fluvial discharge from the surrounding continents, caused by enhanced monsoon rainfall. Thus the development of the East Asian summer monsoon and consequent variations in fluvial discharge would have significantly affected the paleoceanographic conditions in the East/Japan Sea during the MIS 23 sea-level lowstand. Copyright (c) 2012 John Wiley & Sons, Ltd.
资助项目	Primary Science Foundation of the First Institute of Oceanography, SOA of China[2010G08]
WOS关键词	EASTERN MEDITERRANEAN SAPROPEL ; INTERTROPICAL CONVERGENCE ZONE ; OXYGEN-ISOTOPE RECORDS ; U-TH AGES ; JAPAN SEA ; MILLENNIAL-SCALE ; LATE PLEISTOCENE ; LATE QUATERNARY ; ORBITAL-SCALE ; ULLEUNG BASIN
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000312496600009
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26888]
专题	自然资源部第一海洋研究所
通讯作者	Liu, Yanguang
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Korea Ocean Res & Dev Inst, Seoul 425600, South Korea
推荐引用方式 GB/T 7714	Yao, Zhengquan,Liu, Yanguang,Shi, Xuefa,et al. Paleoenvironmental changes in the East/Japan Sea during the last 48 ka: indications from high-resolution X-ray fluorescence core scanning[J]. JOURNAL OF QUATERNARY SCIENCE,2012,27(9):932-940.
APA	Yao, Zhengquan,Liu, Yanguang,Shi, Xuefa,&Suk, Bong-Chool.(2012).Paleoenvironmental changes in the East/Japan Sea during the last 48 ka: indications from high-resolution X-ray fluorescence core scanning.JOURNAL OF QUATERNARY SCIENCE,27(9),932-940.
MLA	Yao, Zhengquan,et al."Paleoenvironmental changes in the East/Japan Sea during the last 48 ka: indications from high-resolution X-ray fluorescence core scanning".JOURNAL OF QUATERNARY SCIENCE 27.9(2012):932-940.