Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China

doi:10.1016/S0012-821X(98)00145-9

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

	Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China
	Ding, ZL; Sun, JM; Liu, TS; Zhu, RX; Yang, SL; Guo, B
	1998-09
发表期刊	EARTH AND PLANETARY SCIENCE LETTERS
卷号	161 期号:1-4 页码:135-143
文章类型	Article
摘要	In order to determine the depositional processes of the Pliocene red clay formation deposited directly beneath the Plio-Pleistocene loess in the Chinese Loess Plateau, four red clay sections spanning over 400 km are studied. Grain size analysis of closely spaced samples in the sections shows that the particles of the red clay are very fine with the sand fraction (>63 mu m) being negligible, and that all the curves indicating changes in different grain size parameters have a similar pattern. The grain size records in the upper part of the four sections are almost identical with the median grain size centered at 4-8 mu m. The REE patterns of 28 samples from the Jiaxian red clay section are all characterized by LREE enrichments, relatively flat HREE and slight negative Eu anomaly, being similar to those of eolian loess and the average upper continental crust. These lines of evidence point to a wind-blown origin of the red clay deposits. Accumulation of the loess-soil sequences in the Chinese Loess Plateau during the past 2.6 Ma can be therefore regarded as the continuation of the Pliocene atmospheric dust deposition. Observations of spatial grain size changes in the Loess Plateau suggest that the eolian red clay might be transported mainly by the westerlies, differing significantly from the overlying loess that was transported essentially by the East-Asia winter monsoonal winds. (C) 1998 Elsevier Science B.V. All rights reserved.
关键词	Loess Plateau China wind transport sediments Pliocene magnetostratigraphy
学科领域	Geochemistry & Geophysics
DOI	10.1016/S0012-821X(98)00145-9
关键词[WOS]	PALEOCLIMATIC IMPLICATIONS ; STRATIGRAPHY ; DEPOSITS ; SEQUENCE ; ONSET ; BAOJI
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS记录号	WOS:000075835700010
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：198[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/361006/11846
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	Ding, ZL,Sun, JM,Liu, TS,et al. Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China[J]. EARTH AND PLANETARY SCIENCE LETTERS,1998,161(1-4):135-143.
APA	Ding, ZL,Sun, JM,Liu, TS,Zhu, RX,Yang, SL,&Guo, B.(1998).Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China.EARTH AND PLANETARY SCIENCE LETTERS,161(1-4),135-143.
MLA	Ding, ZL,et al."Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China".EARTH AND PLANETARY SCIENCE LETTERS 161.1-4(1998):135-143.