Box-plot of length, breadth and thickness of dolerite and hornfels backed tools.D = Dolerite, H = Hornfels.
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Box-plot of length, breadth and thickness of dolerite and hornfels backed tools.D = Dolerite, H = Hornfels.
辉绿岩（Dolerite）与角页岩（Hornfels）背修石器的长度、宽度及厚度箱线图。其中D代表辉绿岩，H代表角页岩。
创建时间：
2016-02-24
