They rose above the earth surface as a result of movement of the earth s crust over a hundred million years ago . later they underwent the erosion of quaternary glaciation and have gradually become what they are today 一亿多年前的地球地壳运动使得黄山崛起于地面,后来历经第四纪冰川的侵蚀作用,慢慢地就变成了今天这个样子。
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They rose above the earth surface as a result of movement of the earth s crust over a hundred million years ago . later they underwent the erosion of quaternary glaciation and have gradually become what they are today 一亿多年前的地球地壳运动使得黄山崛起于地面,后来历经第四纪冰川的侵蚀作用,慢慢地就变成了今天这个样子。