Surface geology

seismic and drilling data in combination with the research progress of orogenic belt in the Junggar Basin and its periphery were used to comprehensively study the structural deformation and its superinposition in the eastern Junggar Basin.The results show that the structural deformation in the study area is characterized by N-S zonation

E-W partition and multi-stage superinposition.From the south to the north

there are three major tectonic deformation regions of the Bogda front

the eastern uplift of the basin and the Kolameili front.To go a step further

the eastern uplift can be subdivided into three major structural deformation zones along N-S direction:the northern zone consists of a set of NE-trending anticlines and synclines;the central part is the NWW-trending paleo-uplifts;and the southern part is a nearly SN-trending structure controlled by early structures

forming a combination of imbricate folds and faults.The area has undergone multi-stage tectonic deformation such as the Carboniferous extensional faulted depression and SN-trending compressional deformation

the Mesozoic compressional strike-slip and the Cenozoic SN-trending compression.It contains varying patterns of structural deformation

such as compression

strike-slip

thrust nappe and kink-band

and chronologically

can be divided into six major tectonic evolution stages.Through the research of discovered oil and gas reservoirs

we considered that the factors controlling the distribution of oil and gas are structural deformation differences

multi-stage superimposed paleo-bulges

unconformities and faults.