The sedimentary facies include shore-shallow lake, shallow lake, semi-deep lake, while the microfacies of biology bank and oolitic beach are more valuable for the oil and gas exploration.

• 沉积相类型有滨浅湖、浅湖、半深湖等，其中生物浅滩、鲕滩等微相具有较好的油气勘探价值。