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upper mantle

/ˈʌpər ˈmæntl/

翻译: 地球内部介于地壳与下地幔之间的圈层,深度约35至670公里,由可在地质时间尺度上缓慢流动的固态岩石组成。

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phrase

/ˈʌpər ˈmæntl/C1formalscientific
  • zh地球内部介于地壳与下地幔之间的圈层,深度约35至670公里,由可在地质时间尺度上缓慢流动的固态岩石组成。

A scientific term referring to the layer of the Earth's interior located between the crust and the lower mantle, extending from about 35 to 670 kilometers below the surface, composed of solid rock that can flow slowly over geological time.

  1. Earth's geological layerC1formal

    The part of the Earth's mantle that lies between the crust and the lower mantle, extending from about 35 to 660 kilometers below the surface.

    zh上地幔

    • The upper mantle is composed mainly of peridotite rock.
    • Seismic waves travel differently through the upper mantle.
    • Geologists study the upper mantle to understand plate tectonics.