川南地区五峰组—龙马溪组沉积期古地貌及含气页岩特征

施振生,袁渊,赵群,孙莎莎,周天琪,程峰

Paleogeomorphology and oil-bearing shale characteristics of the Wufeng-Longmaxi shale in southern Sichuan Basin，China

Zhensheng SHI,Yuan YUAN,Qun ZHAO,Shasha SUN,Tianqi ZHOU,Feng CHENG

图6 乐山—龙女寺古隆起东南斜坡五峰组—龙马溪组不同沉积相带薄片照片显示页岩粒度 （a）浅水陆棚亚相，自203井，3 000.65 m，正交光；（b）深水斜坡微相，威201井，1 540.98 m，正交光； （c）深水平原微相，泸208井，3 840.77 m，正交光；（d）深水洼地微相，泸202井，4 450.5 m，正交光

Fig.6 Thin section photos showing grain size of different sedimentary facies of the Wufeng-Longmaxi shale on the southeastern slope of the Leshan-Longnüsi paleo-uplift