English-Chinese/Earth's mantle
Earth's mantle is the 2,900km thick shell making up about 84% of Earth's volume. It is over the Earth's iron-rich core, which takes up about 15% of Earth's volume.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Earth-crust-cutaway-english.png/300px-Earth-crust-cutaway-english.png)
地幔 是 2,900km厚的 外壳,约占 地球体积的 84%。它是 地球上 富含铁的 核心,占地球体积的 15%左右。