Basin Tectonic Evolution Analysis through the Sectional Characteristics ofBasin-Range Coupling Belt, Junggar Basin
从周缘盆—山耦合区带剖面结构特征分析准噶尔盆地构造演化

The Junggar basin is regarded as a large-scale inland composite basin under the multi\|phase evolutions of compressed tectonic environment. The basin types are both foreland basin and intracontinental basin. Foreland basin is mainly located in the frontier of the thrust faulting of orogenic belt while the intracontinental basin is situated in the inland area of the basin. Based on the previous researches, combined with the further understanding of the present oil\|gas exploration, the exploitation of the Junggar basin, the analysis of the sedimental strata characteristics in different stages and the mountains profiles on the margin of the Junngar basin, it is considered that there are three\|period foreland basins formed since the Permain in Junggar basin. The composition and superposition of those three\|period foreland basins are the main reasons for the rich oil and gas resources and diversified reservoir models of the Junggar basin.