山前坳陷，是地槽褶皱隆起以后，形成于造山带前缘的坳陷，为间隔了一段相当长的时间后形成的大型带状坳陷。
导致山前坳陷带的形成和陆壳的加积、增厚。
Which results in the formation of a piedmont depression and accretion and thickening of continental crust.
它是由晚古生代前陆坳陷和中新生代山前拗陷迭加而成的复合型盆地。
Generally, the basin is a superimposed basin formed by foreland depression of the Late Paleozoic in the lower, and the piedmont depression of the Meso-Cenozoic in the upper.
认为川东北地区经历了从内陆克拉通之后的大型淡水坳陷湖盆阶段向大巴山前陆盆地阶段的转换过程。
NE Sichuan basin went through the transformational history from large fresh water depression basin after inland craton to foreland basin of Daba mountain.
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