川北山前带寒武系筇竹寺组富有机质页岩发育模式

张明何, 魏祥峰, 高波, 戎佳, 刘珠江, 燕继红, 杨琪航, 王佳乐, 刘慧萍, 游浪, 刘自亮

Developmental models of organic-rich shales in the Cambrian Qiongzhusi Formation in the piedmont zone of northern Sichuan Basin

Minghe ZHANG, Xiangfeng WEI, Bo GAO, Jia RONG, Zhujiang LIU, Jihong YAN, Qihang YANG, Jiale WANG, Huiping LIU, Lang YOU, Ziliang LIU

图3 川北山前带筇竹寺组页岩TOC分级占比（a）、沉积构造类型占比及相应TOC平均值（b）

Fig. 3 The proportions of shale samples with TOC values in different ranges （a）， the proportions of shale samples of different sedimentary structures and the corresponding TOC average values （b） of Qiongzhusi Formation shale in the piedmont zone of northern Sichuan Basin