STRUCTURAL STYLE OF THE SOUTHERN NORTH CHINA BASIN

Through the study of typical geologic and seismic sections in the southern North China Basin,the structural styles are analyzed and classified.There are 5 main structural styles:thrust,extension,strike-slip,inversion and gravity decollement.Based on the structural style analysis,the basin property and regional tectonic background of the southern North China Basin are discussed.The relation between hydrocarbon accumulation and structural style of the southern North China Basin are also discussed.Exploration practices have indicated that,petroleum usually accumulates in extensional traps,and thrust and inversion traps also deserve attention.