Characteristics of "Guangyuan-Wangcang" trough during Late Middle Permian and its petroleum geological significance in northern Sichuan Basin, SW China

WANG Xingzhi,LI Bo,YANG Xiyan,WEN Long,XU Liang,XIE Shengyang,DU Yao,FENG Mingyou,YANG Xuefei,WANG Yaping,PEI Senqi

Table 2. TOC and Ro test results of siliceous rock samples from Maokou Formation top in the Chejiaba profile of Guangyuan.

Sample No. Ro/% TOC/% CJBd6 1.106 3.65 CJBd7 1.652 7.62 CJBd8 1.068 4.40 CJBd9 1.159 3.21 CJBd10 1.305 3.89 CJBd11 1.009 3.91 CJBd12 1.082 8.03 CJBd14 1.316 6.12 CJBd15 1.248 7.75 CJBd16 1.175 8.19 CJBd17 1.169 4.64 CJBd19 1.174 4.93