The principle of superposition: in a pile of sedimentary layers that has not been turned over, each layer is younger than the layer below it and older than the layer above it. The oldest layer is at the bottom, the youngest at the top.
书籍暂未推出简体中文版——当前显示英文版。
Earth and Space Sciences · 术语表
什么是 Principle of superposition?
又称: superposition, principle of