中文摘要：

断陷盆地中的断陷构造层往往是由众多断块组成，在伸展掀斜过程中，每个块体都是一个相对独立的沉降和沉积单元。由于各个块体所处的构造位置、边界断层走向、以及演化过程中的运动学特点不同，有些块体在整个断陷过程中长期继承性掀斜沉降，成为主力生油气中心的主体凹陷；有些块体在断陷演化过程中被边缘化，表现为沉降幅度较小或剥蚀量较大。根据成因和所起的构造作用，可以将边缘凹陷分为4种类型，即废弃型、调节型、过渡型和改造型。

英文摘要：

The faulted struct In the extending process, e center. In the process of rif ural strata are usually constituted by numerous f ach fault-block is a comparatively independent t-subsidence evolvement, some fault-blocks succ long period, becoming the host sags of the pri of subsidence or strong denudation, becoming structure position, boundary fault strike, and the function in structural activity, the brink transitional-type, and reconstructed-type. mary oil source center, and th the brink sags, all these just ault-blocks in faulted basin. sedimentary and subsidence ession rift and subside for a e others show the less range because of the difference in dynamics characteristics. According to the formation and sags can be divided into abandoned-type, adjusted-type,