Four kinds of ridge like structures, saddle structural lithological ridge, fault lithological ridge, anticlinal lithological ridge and lithological ridge, can be identified from the structural map.

• 从该构造图上识别出油气向西部斜坡带运移的4种脊状构造,即鞍状构造-岩性脊、断层-岩性脊、背斜-岩性脊和纯岩性脊。