3 . the variation of formation compression during uplift and degradation the uplift and denudation of basin have a greatly influence to the formation compression formed previously . the fashion of influence is related to the uniformity extent of degradation of the earth ' s surface 3盆地抬升剥蚀过程中地层压力的变化盆地的抬升剥蚀对前期形成的地层压力有重要的影响，影响的方式与地表剥蚀的均匀程度有关。
