Reservoirs of this hot rock collect in the base of the mantle.
这些热岩石的储层聚集在地幔的底部。
2
The explanation may be in Earth's mantle, the layer ofrock underlying the tectonic plates and extending down over 1,800 miles to the outer edge of Earth's iron core.
解释可能是在地球的地幔中，这是在构造板块下面的岩石层，向下延伸超过1800英里到地球铁芯的外边缘。
3
As we've discussed, Earth's crust is made up of large plates that rest on a mantleof molten rock.