Biostratigraphy and reservoir characteristics of the Ordovician Wufeng Formation-Silurian Longmaxi Formation shale in the Sichuan Basin and its surrounding areas, China
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Biostratigraphy and reservoir characteristics of the Ordovician Wufeng Formation-Silurian Longmaxi Formation shale in the Sichuan Basin and its surrounding areas, China |
| WANG Hongyan,SHI Zhensheng,SUN Shasha |
| Fig. 5. Stratigraphic distribution of graptolite zones in the Longmaxi Formation of Sichuan Basin and its surrounding areas. |
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