Characterization of the Chinese loess-paleosol stratigraphy by whiteness measurement

doi:10.1016/S0031-0182(02)00246-8

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

	Characterization of the Chinese loess-paleosol stratigraphy by whiteness measurement
	Chen, J; Ji, JF; Balsam, W; Chen, Y; Liu, LW; An, ZS
	2002-07-20
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
卷号	183 期号:3-4 页码:287-297
文章类型	Article
摘要	Changing color is one of the most striking features of loess-palcosol sequences in central China: the loess is light yellow and the interstratified paleosols are reddish-brown. Until a few years ago, conventional color description of loess sediments was made using a qualitative visual method, the Munsell system. To better understand the character of the color changes and to quantify results. whiteness and magnetic susceptibility were compared from four loess-paleosol sequences. Results show that the two parameters are highly correlated in the four sequences studied. Grain-size analysis and chemical extraction experiments indicate that the concentration and species of fine-grained iron oxides are major factors determining color changes in loess and paleosols. Whiteness and latitude values from the last glacial-interglacial sequence exhibit a linear relationship suggesting that whiteness will be a useful tool for reconstructing past atmospheric circulation, especially the East Asian summer monsoon. Whiteness and magnetic susceptibility in the Luochuan profile over the past 0.9 Myr display a strong correlation indicating that whiteness can be also used to reveal a long climatic history from Chinese loess-paleosol sequences. (C) 2002 Elsevier Science BN. All rights reserved.
关键词	whiteness pedogenesis iron oxide minerals paleomonsoon Chinese Loess Plateau
学科领域	Physical Geography ; Geology ; Paleontology
DOI	10.1016/S0031-0182(02)00246-8
关键词[WOS]	DIFFUSE-REFLECTANCE SPECTROPHOTOMETRY ; BICARBONATE-DITHIONITE EXTRACTION ; FINE-GRAINED MAGNETITE ; LAST 130,000 YEARS ; PALEOCLIMATIC IMPLICATIONS ; SEDIMENT CORES ; NORTH-ATLANTIC ; TIME-SCALE ; SUSCEPTIBILITY ; PLATEAU
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000176723500007
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：67[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/361006/11938
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,Balsam, W,et al. Characterization of the Chinese loess-paleosol stratigraphy by whiteness measurement[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2002,183(3-4):287-297.
APA	Chen, J,Ji, JF,Balsam, W,Chen, Y,Liu, LW,&An, ZS.(2002).Characterization of the Chinese loess-paleosol stratigraphy by whiteness measurement.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,183(3-4),287-297.
MLA	Chen, J,et al."Characterization of the Chinese loess-paleosol stratigraphy by whiteness measurement".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 183.3-4(2002):287-297.