ongxin structure is a complicated fault anticline zone with a long grabon within the central part of east west trend ,which mainly consists of Dongying dome and Xinzhen anticline.

• 东辛油气田为我国最大的复杂断块油气田，该区总体上由东营穹窿背斜、辛镇长轴背斜及过渡带三部分组成，受南北两翼近东西向延伸的二级断层的控制，呈现为东西向堑式背斜带。