摘要
The south area of Songliao Basin and west area of Liaoning trench across several geotectonic units such as Xingmeng-Jihei orogen, North China Platform, and increased convergent plate boundary in north border of North China Platform. In Liaoxi Basin-and-range province, Songliao Basin province, and Liaobei Basin province, a series of different types of basins in Late Triassic, Middle-Late Jurassic, Cretaceous basins were developed under the control of different types of basements and regional faults. Basins in different periods evolved discontinuously, and directions of these basins are very obvious.