Geologically, the rock mass of the Mogao Grottoes is semi-binder calcirudite of the quaternary sediment of very loose structure.
莫高窟岩体在地质学上属质、钙质半胶结砾岩,结构十分松散。
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First discovered during the Apollo programme, these lunar lava tubes are a legacy of when Earth's nearest celestial neighbour was geologically hyperactive, with streams of boiling basaltic magma bursting from the interior to flow across the Moon's surface as lava.
在阿波罗计划期间首次发现,这些月球熔管是地球最近
天体邻居在地质上过度活跃时留下
遗产,沸腾
玄武
浆流从内部爆发, 以熔
形式流过月球表面。