New lithological cognition of Guanyinqiao bed at Guanyinqiao section in Qijiang area,Chongqing,Southwest China
SHI Zhiqiang, PENG Shenyuan, ZHAO Ankun, GE Yu, LI Changhao
JOPC . 2023, (1): 43 -55 .  DOI: 10.7605/gdlxb.2023.01.003