The distribution and significance of Lucaogou Formation of Permain in Santanghu basin

Lucaogou Formation of Perma in as the main oil-source layer and reservoior in Santanghu basin is similar to the Lucaogou Formation in the south of Junggar's basin and the Ta'erlang Formation in Tuha basin. Comparing to each other in lithology and biologic a ssemblage,it is important for petroleum exploration. However,its distribution has been disputed by the limitation of the geological condition and study means. According to the lithology combination characteristics of field section and blow-surface section,Lucaogou Formation of Perma in only distributes in Malang depression and the south of Tiaohu depression.