Eolian sedimentary records for the evolution of monsoon and westerly circulations of northern China in the last 2.6 Ma

doi:10.1360/03yd0284

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	Eolian sedimentary records for the evolution of monsoon and westerly circulations of northern China in the last 2.6 Ma
	Sun, DH; An, ZS; Su, RX; Lu, HY; Sun, YB
	2003-10
发表期刊	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
卷号	46 期号:10 页码:1049-1059
文章类型	Article
摘要	Systematic grain-size analysis has found that Chinese loess generally shows bimodal distribution composed of overlapped coarse and fine components. Sedimentary dynamic illustration indicates that the coarse component was mostly the product of low-level monsoonal circulation, and the fine component was mainly transported by high-level circulation dominated by westerly in northern China. Grain-size series of coarse component consistently indicates that the monsoonal circulation strengthened in glacial stages and weakened in interglacial stages over Loess Plateau. The latitude differentiation of fine component series suggests that the westerly circulation intensified and shifted to about 35degreesN in glacial stages, conversely, weakened and shifted to 37degreesN in interglacial stages. Grain-size variation trends of coarse and fine components revealed by Luochuan loess-paleosol suggest that the contribution of westerly circulation to eolian loess decreased and its intensity weakened in the last 2.6 Ma, which is accompanied by strengthening intensity and increasing contribution of the monsoonal circulation. This variation trend was marked by an abrupt change in the transition period of 1.2-0.9 Ma, which probably reflected the controlling role of Tibet Plateau uplift on the atmospheric circulation of northern China.
关键词	Chinese loess grain-size distribution monsoon westerly
学科领域	Geology
DOI	10.1360/03yd0284
关键词[WOS]	GRAIN-SIZE DISTRIBUTION ; QINGHAI-XIZANG PLATEAU ; UPLIFT
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
WOS记录号	WOS:000185354300009
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12022
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Sun, DH,An, ZS,Su, RX,et al. Eolian sedimentary records for the evolution of monsoon and westerly circulations of northern China in the last 2.6 Ma[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2003,46(10):1049-1059.
APA	Sun, DH,An, ZS,Su, RX,Lu, HY,&Sun, YB.(2003).Eolian sedimentary records for the evolution of monsoon and westerly circulations of northern China in the last 2.6 Ma.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,46(10),1049-1059.
MLA	Sun, DH,et al."Eolian sedimentary records for the evolution of monsoon and westerly circulations of northern China in the last 2.6 Ma".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 46.10(2003):1049-1059.