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Earth and Space Sciences · 术语表

什么是 Lithosphere; asthenosphere?

又称: lithosphere · asthenosphere

Definition 12.1 High School Earth and Space Sciences · 第 12 章 — Lithosphere and Asthenosphere

The lithosphere is the rigid outer shell of the Earth: the crust and the uppermost, coldest part of the mantle, which together break into the tectonic plates and do not flow. The asthenosphere is the layer of the mantle beneath the lithosphere, hotter and weaker, which flows slowly over long spans of time, like a very stiff paste.

The upper 400\, km of the Earth under a continent, to scale. Left: the layers by material. Right: the layers by behaviour. The rigid lithosphere contains the whole crust and the top of the mantle; the asthenosphere has no sharp lower limit.
The upper 400 km400\,\mathrm{km} of the Earth under a continent, to scale. Left: the layers by material. Right: the layers by behaviour. The rigid lithosphere contains the whole crust and the top of the mantle; the asthenosphere has no sharp lower limit.
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