Ooids types of the upper Du'an Formation of lower Carboniferous in Dujie section of Long'an area in Guangxi and their geological significance
Gong En-Pu, Yang Zhen-Yuan, Huang Wen-Tao, Guan Chang-Qing, Zhang Yong-Li, Miao Zhuo-Wei, Wang Li-Fu, Li Xiao, Wang Jun-Jie
JOPC . 2021, (1): 125 -141 .  DOI: 10.7605/gdlxb.2021.01.009