黔东北志留纪晚期小溪组沉积环境研究
马会珍, 王雪华

A Study of the Sedimentary Environment of the Xiaoxi Formation in NE of Guizhou, China
Ma Hui-zhen, Wang Xue-hua
图3 石阡乌谷溪小溪组的累积频率曲线
Fig.3 Cumulative frequency curve of sandstone in the Xiaoxi Formation in Wuguxi Shiqian,NE of Guizhou, China