三塘湖盆地芦草沟组浊积岩的发现及勘探意义

目的 为了解三塘湖盆地中二叠世芦草沟组发育的一套浊积岩沉积体与油气的关系。方法 通过野外露头观察以及井下资料分析，对该套浊积岩进行了较全面的研究。结果 该套浊积岩岩性同围岩类似，块状层理、平行层理、交错层理和包卷构造较发育；浊积岩体为频繁的火山活动引发的水下沉积体滑塌而形成；浊积岩富含腐殖质，裂缝较发育。结论 该套浊积岩具备生油和储油的能力，对于本区油气勘探具有重要的意义。

The discovery of turbidite in Lucaogou Formation of Permian in Santanghu Basin and its significence to hydrocarben exploration

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.