北京西山地区下苇甸剖面寒武系张夏组鲕粒硅化成因探讨*
郭芪恒, 金振奎, 朱雷, 朱小二, 王金艺, 吴进, 李思澎

Mechanism for silicification of ooid:Example from the Cambrian Zhangxia Formation at Xiaweidian section in Western Hills of Beijing
Guo Qi-Heng, Jin Zhen-Kui, Zhu Lei, Zhu Xiao-Er, Wang Jin-Yi, Wu Jin, Li Si-Peng
北京西山地区下苇甸剖面寒武系张夏组鲕粒硅化模式图
a—原始正常沉积鲕粒;b—鲕粒被充填或胶结;c—鲕粒重结晶形成有机质膜;d—鲕粒硅化套形成