The fractures in Lueaogou group Malang sag Santanghu basin are mainly netted, oblique crossed and interlayer ones with high thickness, minor width and middle scale.

• 三塘湖盆地马朗凹陷芦草沟组裂缝主要以网状缝、斜交缝和层间缝为主,裂缝密度大,宽度小,规模中等。