寒武纪丝状蓝细菌生物膜主导和诱发的巨型鲕粒:以河南新安县石井剖面苗岭统徐庄组为例*
梅冥相1,2

Giant ooids induced and predominated by photosynthetic biofilms of filamentous cyanobacteria: an example from the Miaolingian Xuzhuang Formation at the Shijing section in Xin'an County of Henan Province,North China Platform
Mei Ming-Xiang1,2
河南新安石井剖面苗岭统徐庄组上部高水位鲕粒滩相灰岩的基本特征 a—块状鲕粒灰岩远照;b—鲕粒灰岩中的双向板状交错层理;c—鲕粒灰岩近照;d—鲕粒灰岩的低倍显微照片,其中(1)为放射鲕,(2)为泥晶—放射鲕或泥晶鲕粒,(3)为三叶虫化石;e—鲕粒灰岩的高倍显微照片,其中(1)为泥晶套包覆的可能为棘皮生物碎屑组成的假鲕,(2)为放射鲕