Color reflectance of Chinese loess and its implications for climate gradient changes during the last two glacial-interglacial cycles

作     者：S.L.Yang and Z.L.Ding Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,China 

会议名称：《中国科学院地质与地球物理研究所2003学术年会》

会议日期：2003年

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 081803[工学-地质工程] 0709[理学-地质学] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：funded bv the National Natural Science Foundafon of China(Grants 40202016,90202020 and 40231011) NKBRSF project(G19994043402) 

关 键 词：Chinese loess Color reflectance Giacial-intergiacial cycles Weathering intensity 

摘      要：To examine the relationship between color changes of loess deposits and paleoclimate conditions,a north-south transect consisting of twelve loess sections were studied. Color reflectance was measured on loess-paleosol samples from the loess transect which accumulated over the last two glacial-interglacial *** redness value,a