燕山地区京西坳陷青白口地区新元古界沉积相演化*
郭芪恒, 金振奎, 朱小二, 李硕, 史书婷, 王俊杰, 程逸凡

Sedimentary facies evolution of the Neoproterozoic in Qingbaikou area of Jingxi Depression, Yanshan region
Guo Qi-Heng, Jin Zhen-Kui, Zhu Xiao-Er, Li Shuo, Shi Shu-Ting, Wang Jun-Jie, Cheng Yi-Fan
京西坳陷青白口地区新元古界岩石特征 a—黑色泥岩,单偏,下马岭组,采样点位②;b—粉砂质泥岩,单偏,镜下砂泥互层,下马岭组,采样点位②;c—中砂岩,正交,龙山组,采样点位④,;d—石英次生加大边,正交,龙山组,采样点位⑥;e—不整合面,龙山组底部,照片点位③;f—泥质粉砂岩,单偏,龙山组,采样点位⑤;g—白云质灰岩,单偏,景儿峪组,采样点位⑦;h—同生云质结核,景儿峪组,照片点位⑧;i—云化条带灰泥 石灰岩,单偏,景儿峪组,采样点位⑧