济阳坳陷为一典型北陡南缓的箕状断陷盆地,其各凹陷北部的强断裂活动造成北断南超、北陡南缓的构造格局。以东营凹陷北坡为例,盆倾断裂发育,切割潜山顶面呈阶梯状,断裂旁侧沉积较厚,常发育褶皱构造。断裂上升盘遭剥蚀,下降盘发育一系列扇体,为油气聚集的有利场所。 The Jiyang Depression is a typical north-steep graben-rifted, subsidence basin with strong fault activity in the northern part of each depression resulting in the tectonic framework of the south-north fault and south-easterly dip in the north. Taking the northern slope of Dongying depression as an example, the basin-dip fault develops. The top surface of the cut buried hill is stepped, and the fault flanks are thickly deposited and often fold structure is developed. The rising plate of the fault is eroded and a series of fan bodies are developed on the descending plate, which is a favorable place for the accumulation of oil and gas.