Data suggest that frequency-magnitude relationships of fault sub-areas in eastern China mainland accord with the characteristic earthquake model,meaning that for a fault sub-area,the ratio a/b of the constants,which is also c.

2 in Xiayukou Mine as the object of study, this paper studied the relationship between the media parameters of coalbed and small faluts in coabed, determined four main factors controlling small faults in the coalbed No.

Identification of minor fault and its applications;

Aiming at hysteretic water bursting at the west belt way in Danhou mine, on the basis of analyzing the hydrogeologic data synthetically, the mechanism of hysteretic water bursting caused by minor fault was studied, the cause of hysteretic water bursting was analysed, and the countermeasure about preventing and treating O.

Took a 3D seismic data body in Shanxi as example,used the Geoframe software to calculate coherent body,the geological problems of minor fault and subsided column in coal geological exploration were settled.

Gas-gushing control of small faults in Renlou Coal Mine;

The quantitative prediction of number and possible distribution and seepage evaluation of small fault have important roles in the exploration and development for complex faulted reservoirs in the oilfield, eastern China.

And some research on problems of small fault, small fold, character of roof rock,seam and so on are analyzed in order to strengthen technological management and realize high production and efficience of coal face.

Identification of micro-small faults and effects on development of narrow and small sandstone oilfield;

The aim of seismic exploration in a panel is to ascertain the minor faults and folds,the subtle geological structures in coal measures.

It is very difficult to interpret minor faults directly from seismic profile because of limited resolution of seismic data.