大巴山地区早古生代黑色岩系岩相古地理及页岩气地质意义*
熊国庆1,2,3, 王剑1,2,3, 李园园4, 余谦2,3, 门玉澎2,3, 周小琳1,2,3, 熊小辉2,3, 周业鑫1,2,3, 杨潇1,2,3

Lithofacies palaeogeography of the Early Paleozoic black rock series in Dabashan region and their shale-gas geological significance
Xiong Guoqing1,2,3, Wang Jian1,2,3, Li Yuanyuan4, Yu Qian2,3, Men Yupeng2,3, Zhou Xiaolin1,2,3, Xiong Xiaohui2,3, Zhou Yexin1,2,3, Yang Xiao1,2,3
大巴山地区奥陶系观音桥段沉积特征 a—泥灰岩,赫兰特贝化石,×20;b—细粉砂岩,平行层理发育;c—细粉砂岩,含细粒石英的粉砂质结构,×25,单偏光;d—细粉砂岩,剧烈风化后呈褐红色土状