在下地壳下部有一数公里厚的高速致密的壳-幔混合物层,其形成原因是由于上地幔物质上涌并迁移到下地壳的结果。
It is a mixture of crust and mantle materials which resulted from the upwelling and transporting of the upper mantle material.
在下地壳下部有一数公里厚的高速致密的壳-幔混合物层,其形成原因是由于上地幔物质上涌并迁移到下地壳的结果。
It is a mixture of crust and mantle materials which resulted from the upwelling and transporting of the upper mantle material.
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