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Earth and Space Sciences · 术语表

什么是 Geological time scale?

Definition 22.10 Primary & Middle School Earth and Space Sciences · 第 22 章 — The Ages of the Earth

The geological time scale is the list of the divisions of the Earth’s history in order — the long spans of its early history, the eras and the geological periods — with the age, in years, of the start of each one. An international chart gives each division its name, its age and its colour.

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