A total of 6 sequence boundaries were identified,which are characterized by incised valley fill coarse-grained sandstone at disconformities as well as paleosoils in the inter-fluvial area.

• 共识别包括区域不整合面、河流下切谷及河道间6个层序界面,将侏罗系含煤岩系划分为5个三级层序。