台地被风化侵蚀后的沙土层形成了陡峭的峡谷和悬崖。
Softer rock layers within the mesas eroded to form steep canyons and overhangs along their slopes.
目前还未有人坐在上面刚巧遇上岩石崩塌的情况，这不是因为判断力好，纯粹是走运，因为风化侵蚀是当地十分正常的自然现象。
It is purely down to luck rather than judgment that no one has been sitting on these chunks of rock when the ground has given way. For erosion is a fact of life here.
地应力卸荷、风化、流水侵蚀、植物根劈是危岩发育的主要原因。
The developing of dangerous rock is due to release of in-situ stress in rock, aeolation, water erosion and root flerry.
应用推荐