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 |
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 |
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