Geologically, the rock mass of the Mogao Grottoes is semi-binder calcirudite of the quaternary sediment of very loose structure.
莫高窟岩质学上属第四
沙泥质、钙质半
岩,
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,这些月球熔岩管是球最近的天体邻居在
过度活跃时留下的遗产,沸腾的玄武岩岩浆流
内部爆发, 以熔岩的形式流过月球表面。