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lower mantle

/ˈloʊər ˈmæntl/

翻译: 下地幔是地球内部位于上地幔与外核之间的厚实、高温且固态的圈层,深度约从地表以下660公里延伸至2900公里。

1 个条目

phrase

/ˈloʊər ˈmæntl/C1formalscientific
  • zh下地幔是地球内部位于上地幔与外核之间的厚实、高温且固态的圈层,深度约从地表以下660公里延伸至2900公里。

The lower mantle is the thick, hot, and solid layer of the Earth's interior located between the upper mantle and the outer core, extending from about 660 to 2,900 kilometers below the surface.

  1. Deep Earth layerC1formal

    The lower part of the Earth's mantle, extending from about 660 km to 2,900 km below the surface, characterized by high pressure and temperature.

    zh下地幔

    • The lower mantle is composed mainly of silicate minerals.
    • Seismic waves travel differently through the lower mantle.
    • Scientists study the lower mantle to understand Earth's internal dynamics.