Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle

doi:10.1016/j.jseaes.2015.11.013

	Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle
	Li, Jijun 2; Song, Yougui 3; Zhao, Zhijun 1; Wang, Qiansuo 2,3
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2016-02-01
卷号	116 期号:2016 页码:132-138
关键词	Lightness Hematite To Goethite Ratio Loess-paleosol Sequence The Last Glacial-interglacial Cycle Chinese Loess Plateau
DOI	10.1016/j.jseaes.2015.11.013
文献子类	Article
英文摘要	The soil color is widely used in paleoclimate and paleoenvironment reconstructions in the Chinese Loess Plateau. To better understand the color spatial changes during the glacial -interglacial cycle, the soil color lightness (L-), characteristic spectra, magnetic susceptibilities and mean grain sizes of three loess-paleosol sequences were compared. Results showed that high L- and low hematite to goethite ratios (Hm/Gt) appeared in loess units, and low e and high Hm/Gt ratios accompanied paleosol layers, indicating glacial -interglacial hydrothermal oscillation. L-* in the Yulin section was higher than in the Chaona and Lihuacun sections, indicating that different precipitations have great effect on L-. Furthermore, Hm/Gt, magnetic susceptibility (chi(lf)), and mean grain size are correlated closely with L-. L-* and Hm/Gt not only document climatic variations in the glacial -interglacial cycle vis-a-vis loess-paleosol sequences, but also can identify Heinrich cold events and millennial scale Dansgaard-Oeschger (D-O) warm events. It suggests that soil color responds sensitively to global climate change driven by ice volumes. L-* and Hm/Gt curves exhibit higher frequencies and larger amplitudes than magnetic susceptibility (chi(lf)) curves, indicating that L-* and Hm/Gt can be regarded as sensitive and reliable proxies for characterizing high-resolution climate change during the last glacial -interglacial cycle. (C) 2015 Elsevier Ltd. All rights reserved.
WOS关键词	RED CLAY SEQUENCES ; MAGNETIC-SUSCEPTIBILITY ; MONSOON CLIMATE ; TIBETAN PLATEAU ; NORTH-ATLANTIC ; POLLEN RECORD ; SOIL COLOR ; HEMATITE ; REFLECTANCE ; STRATIGRAPHY
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000369456000010
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5846]
专题	地球环境研究所_古环境研究室
作者单位	1.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China 2.Nanjing Normal Univ, Coll Geog Sci, Key Lab Environm Evolut & Ecol Construct Jiangsu, Nanjing 210046, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Li, Jijun,Song, Yougui,Zhao, Zhijun,et al. Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,116(2016):132-138.
APA	Li, Jijun,Song, Yougui,Zhao, Zhijun,&Wang, Qiansuo.(2016).Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle.JOURNAL OF ASIAN EARTH SCIENCES,116(2016),132-138.
MLA	Li, Jijun,et al."Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle".JOURNAL OF ASIAN EARTH SCIENCES 116.2016(2016):132-138.