对华北中元古代海侵初期“河流相”沉积的重新认识:以天津蓟县剖面为例
钟焱1,2, 赵亮东1,2, 陈留勤1,2, 梅冥相1,2

New understanding of “fluvial facies” deposition of the early transgression period of Mesoproterozoic: An example from Jixian section in Tianjin
Zhong Yan1,2, Zhao Liangdong1,2, Chen Liuqin1,2, Mei Mingxian g1,2
常州沟组一段及二段岩石薄片显微照片(a,c—分别为一段及二段样品单偏光下图像;b,d—分别为a、c中矩形区域正交光下的放大图像)