Red ratings for loess-paleosol sequences on China's loess plateau and their paleo-climatic implications

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

	Red ratings for loess-paleosol sequences on China's loess plateau and their paleo-climatic implications
	Hu, XF; Lu, HY; Xu, Q; Dong, LJ; Hu, X
	2004-11
发表期刊	PEDOSPHERE
卷号	14 期号:4 页码:433-440
文章类型	Article
摘要	Comparisons of red ratings (RR) with Fe-d, Fe-d/Fe-t, clay content, and magnetic susceptibility (chi) of two loess-paleosol sequences at Luochuan and Lingtai on China's Loess Plateau were conducted to study the possible relationship between RR and pedogenic degrees of the two loess-palecsol sequences, and to discuss whether the RR could become new paleo-climatic indicators. Results showed that the RR of the two loess-paleosol sequences had positive, highly significant (P < 0.01) correlations with: 1) citrate-bicarbonate-dithionite (CBD) extracted iron (Fed), 2) ratios of CBD extracted iron to total iron (Fed/Fet), 3) clay (< 2 mum), and 4) magnetic susceptibility (chi). This suggested that the RR of these loess-paleosol sequences could indicate degrees of loess weathering and pedogenesis and were potential paleo-climatic proxies. The strong correlations of RR to Fe-d and chi also implied that during pedogenic processes, pedogenic hematite in loess and paleosols were closely related to the amount of total secondary iron oxides and pedogenic ferrimagnetic minerals (predominantly maghemite).
关键词	hematite loess-paleosol sequences Loess Plateau magnetic susceptibility red ratings
学科领域	Agriculture
关键词[WOS]	MAGNETIC-SUSCEPTIBILITY RECORD ; SOIL COLOR ; DEPOSITS ; PALEOCLIMATE ; PEDOGENESIS ; LUOCHUAN ; PEDOSTRATIGRAPHY ; MINERALOGY ; EVOLUTION ; SECTION
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Soil Science
WOS记录号	WOS:000224774000003
出版者	SCIENCE PRESS
引用统计	被引频次：6[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/361006/12070
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	Hu, XF,Lu, HY,Xu, Q,et al. Red ratings for loess-paleosol sequences on China's loess plateau and their paleo-climatic implications[J]. PEDOSPHERE,2004,14(4):433-440.
APA	Hu, XF,Lu, HY,Xu, Q,Dong, LJ,&Hu, X.(2004).Red ratings for loess-paleosol sequences on China's loess plateau and their paleo-climatic implications.PEDOSPHERE,14(4),433-440.
MLA	Hu, XF,et al."Red ratings for loess-paleosol sequences on China's loess plateau and their paleo-climatic implications".PEDOSPHERE 14.4(2004):433-440.