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,这些月球熔岩管是地球最近的天体邻居在地质过度活跃时留下的遗产,沸腾的玄武岩岩浆流从内部爆发, 以熔岩的形式流过月球表面。