Aim It is found that there exists turbidite in Lucaogou Formation of middle Permian in Santanghu Basin and it is necessary to clear the relationship between the turbidite and hydrocarbon. Methods The study is based on the observing outcrop and analyzing the information of wells.Results It shows that lithology of turbidite is similar with that of wallrocks. Blocky bedding,parallel bedding, cross-bedding and convolute structure are better developed in this area. Because of the frequency of volcanic activity, the sediments under water had slided along slope and formed turbidite rock which is humus-enriched and crack-developed.Conclusion The series of turbidite rocks has capability of oil-generating and oil-storaging as well as important significance on oil exploring in Santanghu Basin.
Journal of Northwest University(Natural Science Edition）