Characteristics Of Palaeozoic Fault Structure At Sanshun Region Of Tazhong North Slope Of The Tarim Basin

Sanshun region located in the north slope of Tazhong uplift, it is composed of Manjardepression and Awati Fault Depression；close to Manjar depression at east，sink to Awati FaultDepression at west, adjacent to Tazhogn1fault; it has a tectonic framework of southeasthigh-northwest low.Through many processes including syntool、interpretation of seismic、 interpretation ofstratum、Time-Depth transform、interpretation of faults etc., combining with geology data andseismic data、flat surface analysis, I think that Sanshun region is mainly influenced byCaledonian movement and Hercynian orogeny during its development, as in Sanshun regionhas its structural distribution and faults system already formed in Paleozoic,Mesozoic-Cenozoic has rare affection to it.Through analysis of Sanshun’s faults system, we can think that northwest Shuntuoguoleregion mainly have faults of NNW、NW oriented, and they are mostly of secondary andthirdary faults, they also have strike-slip faults as well. South Shuntuoguole region mainlyhave NNE oriented faults of Ordovician. With the basic knowledge of Sanshun, we can getfive basic structural styles, they are compressional、extensional、strike slip-pling、inversionand plastic structural.Sanshun region at north slope of Tazhong uplift mainly have five lateralsource-reservoir-seal associations，most Source rocks is from Manjar depression and AwatiFault Depression of Caledonian and Indosinian strata. Multistage tectonic movement formseveral structural styles, and they provide many good types of traps for oil accumulation, suchas anticline. it may form lithologic traps at Unconformity；Paleozoic mainly have two oilaccumulation，firt is late Caledonian-early Hercynian period，second is the late Hercynianperiod。...