Abstract:

The Qiyang ε-type tectonic system in central Hunan has been stu-died and its bearing on oil and gas potential discussed.Partly on the basis of model experiments,some new ideas about the characteristics ofthis tectonic system and the mechanism of its formation have been putforward.This paper contains three parts:the first part deals with the tec-tonic features of the Qiyang ε-type tectonic system.The second partdiscusses the mechanism of formation of the Qiyang ε-type tectonicsystem.The third part discusses briefly the relationaship between the Qiyang ε-type tectonic system and the hydrocarbon ocurrence.