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Color characteristics of Chinese loess and its paleoclimatic significance during the last glacial-interglacial cycle
Wang, Qiansuo1,2; Song, Yougui2; Zhao, Zhijun3; Li, Jijun1
2016-02-01
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
卷号116期号:2016页码:132-138
文章类型Article
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.
关键词Lightness Hematite To Goethite Ratio Loess-paleosol Sequence The Last Glacial-interglacial Cycle Chinese Loess Plateau
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.jseaes.2015.11.013
关键词[WOS]RED CLAY SEQUENCES ; MAGNETIC-SUSCEPTIBILITY ; MONSOON CLIMATE ; TIBETAN PLATEAU ; NORTH-ATLANTIC ; POLLEN RECORD ; SOIL COLOR ; HEMATITE ; REFLECTANCE ; STRATIGRAPHY
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000369456000010
引用统计
被引频次:1[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/361006/5846
专题古环境研究室
作者单位1.Nanjing Normal Univ, Coll Geog Sci, Key Lab Environm Evolut & Ecol Construct Jiangsu, Nanjing 210046, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
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Wang, Qiansuo,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 Wang, Qiansuo,Song, Yougui,Zhao, Zhijun,&Li, Jijun.(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 Wang, Qiansuo,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.
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