Abstract:

Three structural styles, including compression, strike-slip and inversion, are identified in the southern margin of Junggar basin based on analysis of structural evolution and seismic interpretation in this area and adjacent area. According to the spatial distribution of these structural styles, the E-W segmentation and S-N zonation of structural deformations, vertical differences of deformations, as well as deformational features of strike-slip wrench movement and their extending patterns have been studied. This area has favorable hydrocarbon accumulation conditions, and the control of structures on hydrocarbons is remarkable. The favorable exploration areas include fault related folds in piedmont thrust zones, anticlinal structures in the footwalls of piedmont thrusts and the anticlinal structures in the outer zone of piedmont thrust belt.

Key words: structural style, structural deformation, exploration potential, southern margin of Junggar basin