The Method for Recognition of Tectonic Framework and Structure of Matured Basin

 At present in the comprehensive study process of tectonic and structure of matured basin as a wholegreat importance should be attached to aspects including geologic characteristics the recognizing of the overall tectonic characteristics or complicated origin structure and basin or of the large regions and the evolution of basin as well as the regional background． The guide of thinking in such study should be changed in accordance with different stage． From the view point of analog and ″to seek common point″ in early－middle period then transform ″to search the differences″as it should be in later stage of exploration we must give prominence to evolution of basin and to geologic structural characteristics occurring during the later rebuilt process including the followings ① the paleotopograph in different times and its evolution and distinguishment ② the differing and division of characteristics in different area ③ the significant differences compared with other similar basins and the reasons ④ individual features of the basin and the internal relation with the hydrocarbon occurrence and formation of reservoir．