毛乌素沙地东缘中全新世以来环境变化及其对文明演化的影响初探
柳欣滢, 金明, 杨帆, 马亚鹏, 刘慧, 孙小云, 夏敦胜

A preliminary study of environmental changes since middle Holocene and its impacts on the evolution of civilization in the eastern Mu Us Sandy Land
Xinying Liu, Ming Jin, Fan Yang, Yapeng Ma, Hui Liu, Xiaoyun Sun, Dunsheng Xia
图4 寨山剖面粒度参数变化曲线(虚线代表阶段的划分)
Fig.4 Variations of grain size components in the ZS section (the black dotted line represents the division of three stages)