Use of rubidium to date loess and paleosols of the Louchan sequence, central China

doi:10.1006/qres.2000.2159

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

	Use of rubidium to date loess and paleosols of the Louchan sequence, central China
	Chen, J; Ji, JF; Chen, Y; An, ZS; Dearing, JA; Wang, YJ
	2000-09
发表期刊	QUATERNARY RESEARCH
卷号	54 期号:2 页码:198-205
文章类型	Article
摘要	Rb concentrations, analyzed at 20-cm intervals from the Luochuan sequence of loess and paleosols, are sensitive to the loess-paleosol alternation controlled by monsoon climate. Because it is geochemically immobile, Rb can be well preserved in the loess-paleosol sequence after deposition, and its concentration depends mainly on properties of the winter monsoon-blown dust and on intensity of the summer monsoon-induced pedogenesis. A curvilinear relation has been developed between the measured Rb-concentration and the apparent sedimentation rate for the last glacial-interglacial cycle. This relation provides a time scale that corresponds well with the presently accepted ages for paleomagnetic reversals of Brunhes/Matuyama and Jaramillo events. With allowance for reduced Rb concentrations caused by early Pleistocene climate, the Rb-based time scale is also consistent with the boundary ages of other major paleomagnetic reversals of the past 2.58 myr. (C) 2000 University of Washington.
关键词	Rb distribution sedimentation rate Quaternary time scale Loess Plateau East Asian monsoon
学科领域	Physical Geography ; Geology
DOI	10.1006/qres.2000.2159
关键词[WOS]	LAST 130,000 YEARS ; MAGNETIC-SUSCEPTIBILITY ; NORTH-ATLANTIC ; PALEOCLIMATIC IMPLICATIONS ; ASTRONOMICAL CALIBRATION ; LATE PLEISTOCENE ; TIME-SCALE ; LUOCHUAN ; PLATEAU ; CLIMATE
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000089583900005
出版者	ACADEMIC PRESS INC
引用统计	被引频次：9[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/361006/12057
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	Chen, J,Ji, JF,Chen, Y,et al. Use of rubidium to date loess and paleosols of the Louchan sequence, central China[J]. QUATERNARY RESEARCH,2000,54(2):198-205.
APA	Chen, J,Ji, JF,Chen, Y,An, ZS,Dearing, JA,&Wang, YJ.(2000).Use of rubidium to date loess and paleosols of the Louchan sequence, central China.QUATERNARY RESEARCH,54(2),198-205.
MLA	Chen, J,et al."Use of rubidium to date loess and paleosols of the Louchan sequence, central China".QUATERNARY RESEARCH 54.2(2000):198-205.