通过辽北早白垩世泉头组地层研究,提出泉头组沉积层序划分方案:划分为2个层序,11个旋回层序,20个基本层序;总结了层序划分的4种类型及其识别标志;识别出3种沉积体系———湖相三角洲分流河道沉积体系、浅湖相沉积体系、湖相三角洲前缘沉积体系。 Based on the study of the Early Cretaceous Quantou formation in northern Liaoning, a scheme for the sequence division of the spring head group is proposed: it is divided into two sequences, 11 cycles and 20 basic sequences; and the four types of sequences are summarized And their identification marks. Three kinds of sedimentary systems were identified: distributary channel sedimentation system in lacustrine delta, shallow lacustrine sedimentary system and lacustrine delta front depositional system.