| 释义 |
upper mantle
释义
上地幔：地球内部结构的一部分，位于地壳之下，主要由固态岩石组成，但在一定条件下会呈现部分熔融状态。
例句
1·Because of its proximity to Earth's core, the rock at the base of the mantle is much hotter than rock in the upper mantle .
由于靠近地核，地幔底部的岩石比上地幔岩石的温度高得多。
2·When a reservoir is sufficiently large, a sphere of this hot rock forces its way up through the upper mantle to Earth's surface, creating a broad bulge in the topography.
当储层足够大时，这种炽热岩石的一个球体强行通过上地幔上升到地球表面，在地形上形成一个宽阔的隆起。
3·The occurrence of pargasite reflects the participation of the upper mantle fluids and the metasomatism.
角闪石的出现反映上地幔流体的渗透及交代作用。
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