四川龙门山区中泥盆统金宝石组核形石岩石学特征及其成因*
成晓雨1,2, 李凤杰1,2, 荆锡贵1,2, 沈凡1,2, 张昊1,2

Petrologic characteristics and genesis analysis of oncoids from the Middle Devonian Jinbaoshi Formation in Longmenshan area,Sichuan Province
Cheng Xiao-Yu1,2, Li Feng-Jie1,2, Jing Xi-Gui1,2, Shen Fan1,2, Zhang Hao1,2
四川龙门山区甘溪剖面位置