The left lateral characteristics of Daquan fault was confirmed by: 1) remote sense images of the left-distortional drainage system; 2) statistics of scratches on the fault plane and cleavages in the fault zone; 3) micro-characteristics of fault rocks.

The NNE trending Kouquan Fault Zone is located on the western side of the Datong Basin, Shanxi Province.

It was the deep fracture and palaeouplift developed before deposition of lower Xingouzui formation that visibly controlle.

In the deep fracture and feather fractoures to south occur several types of mineralized rocks.

The deep fracture within .

Studying on the style and mechanism of large deformation in schist layer influenced by major fracture;

The connecting section between 1# and 2# tunnels of Dachun River 2nd Cascade Power Station is mostly built on major fracture and landslide mass of the Red River,for which the scheme of combining box culvert and aqueduct is adopted.

Within the basin of Shangdu,there may occured deep-large fault of long activiation which had affected the basin in its structure,lithofaces of the overlays,dynamic field of undergroud water and the environment of geochemistry.

There are two northwest-southeast deep-large faults in this area, the faults can be the migrat.