Huǒshān bàofā yǔ dìmàn zhōng de yánjiāng huódòng yǒuguān.
Volcanic eruptions are related to magma activity in the mantle.
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幔 means a curtain or mantle (a flowing covering). Earth's 地幔 is like a thick 「curtain」 wrapped around the core. In Chinese, the geological layers are: 地壳 (crust) → 地幔 (mantle) → 地核 (core).
