Relationship between Permian volcanic rocks distribution and karst paleogeomorphology of Maokou Formation and its significance for petroleum exploration in western Sichuan Basin, SW China |
LIU Ran,LUO Bing,LI Ya,QIU Nansheng,WANG Wei,ZHANG Yu,HE Qinglin,PEI Senqi |
Fig. 4. Elements of limestone on the top of the Maokou Formation in YT1 of Jianyang area, western Sichuan. (a) Comprehensive columnar section of element content variations of the top of Maokou Formation in Well YT1; (b) Standardized distribution pattern of rare earth element of chondrite in cuttings samples of Well YT1. |