Four types of sequences model were identified in the Hetaoyuan Formation, BiYang depression: adequate supply source tectonic slope-brea, poor supply source tectonic slope-break , hinge margin and salt-lake model. The research on corrasion valley ?

• 将本研究区内的层序地层模式归纳为四种：充足物源构造坡折模式、少物源构造坡折模式、缓坡模式和盐湖模式，进一步又可细分为10种类型。