Gas-bearing series of Gangxi Developing Area is Minghuazhen and Guantao Group of upper Tertiary.
港西开发区含气层系为上第三系明化镇组和馆陶组。
While, later rifting stage was divided two evolutionary stages which were from Guantao group to Ming-2 member and from Ming-1 member to Quaternary sedimentary period.
新近纪-第四纪的后裂陷阶段可分为二个演化阶段，即馆陶组-明二段和明一段-第四系沉积时期。
Guan Jiapu area beach sea oil field main oil-bearing formation location whether last the third take town group, Guantao group and lay the third Shahe street group tomorrow.
关家堡地区滩海油田主要含油层位是上第三系明化镇组、馆陶组和下第三系沙河街组。
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