Wrenched-Extensional Basin and Its Sequence Stratigraphic Models: A Case Study from Zhangwu Earlier Cretaceous Basin, West Liaoning~Province

Zhangwu basin is an early Cretaceous fault depression basin in northeast China, underwent dextral transtension and shows obvious responses on sequence development for its appropriate area. With comprehensive utilization of seismic data, logging and drilling, research was conducted on tectonic evolution and sequence stratigraphic models of lower Cretaceous in Zhangwu basin. Jiufotang formation and lower Shahai formation could be divided into 13 three-order sequences, 4 two-order sequences and 2 one-order sequences. 8 types of stratigraphic models are developed, steep slope type with normal sediment supply, steep slope type with abundant sediment supply, gentle slope type with normal sediment supply, gentle slope type with abundant sediment supply, deep water type with normal sediment supply, deep water type with abundant sediment supply, deep groove type and platform type,~respectively.