本文主要根据盆地内钻井、古生物、地震等新成果,结合区域地层对比论述了“巴达拉湖组”应该存在,时代暂归入晚侏罗世。巴彦花组属早白垩世。巴彦花组时代比松辽盆地登娄库组要稍微偏老。盆地地质发育历史中有过短暂统一时期,但长期是彼此被基底凸起所分割的箕状断陷或地堑断陷。 Based on the new achievements such as drilling, paleontology and earthquakes in the basin, the article discusses that the “Bardara Lake Formation” should exist in the light of the regional stratigraphic correlation, and the epoch temporarily belongs to the Late Jurassic. Bayanhua belongs to the Early Cretaceous. Bayanghuai era than the Songliao Basin Denglouku group to be slightly older. Basin geological development history has had a short period of reunification, but the long-term is divided by the base of the raised half-graben fault or graben faulted.