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 |
Fig. 8. Correlation of trace elements of Cu, Co, Ni and U. |