光合作用生物膜诱发的放射鲕粒:以江苏徐州贾旺剖面寒武系苗岭统张夏组为例*
梅冥相1,2

Radial ooids induced by photosynthetic biofilms: an example from the Cambrian Miaolingian Zhangxia Formation at Jiawang section in Xuzhou city of Jiangsu Province,North-China Platform
Mei Ming-Xiang1,2
江苏徐州贾旺剖面寒武系张夏组上部鲕粒灰岩中鲕粒的基本宏观特征 a—块状鲕粒灰岩远照,箭头所指代表冲刷面;b、c—鲕粒灰岩近照,在照片b中见到较多的暗色鲕粒,在照片c中一些较粗的鲕粒表现出平滑的同心纹层状组构