SEDIMENTARY FACIES AND DEPOSITIONAL SYSTEM OF CAMBRICIAN-ORDOVICIANIN KONGQUEHE REGION,TARIM BASIN

Kongquehe region is located in the northeast of Tarim Basin, with oil and gas exploration foreground. According to the methods and principles of seismic stratigraphy and sequence stratigraphy, based on seismic, well and outcrop metarials, the types and characteristics of sedimentary facies were discribed as follows: platform margin slope, shallow continental shelf, deep continental, shelf margin slope, deep sea basin, continental slope and submarine fan. On the basis of sedimentary facies sequence, sedimentary facies distribution and sedimentary evolution, considering palaeogeography environment, assembled disciplination and controlling factors of sedimentary facies, sedimentary pattern of Cambrician-Early Ordovician was built in Kongquehe region. This paper provides a foundation for the further research and oil exploration of the study area.