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。

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The explanation may be in Earth's mantle, the layer of rock 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。

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As we've discussed, Earth's crust is made up of large plates that rest on a mantle of molten rock.

正如我们讨论过的，地壳由位于熔融岩石的地幔上的大型板块构成。

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Unlike any other asteroid known today, Vesta has an iron core surrounded by layers of mantle rock and crust, similar to Earth and Mars, preliminary gravity and density measurements suggest.

WSJ: Asteroid Vesta Gets a Close Study

The origin of this effect may lie at the boundary between the mantle, made up of viscous rock that extends 2, 900 km (1, 800 miles) below the crust, and the outer core, which is thought to be liquid iron with the consistency of water.

BBC: Earth's wobbles reveal deep secrets

Meanwhile in the UK, the punk movement took on the mantle of political protest from its folk and rock forebears, with groups such as The Clash criticizing racial disharmony in British society.

CNN: The Spirit of Music: Is the protest over?