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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
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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
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Zhong Yan 1,2, Zhao Liangdong 1,2, Chen Liuqin 1,2, Mei Mingxian g 1,2
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常州沟组一段中的冲刷面及堆积的砾石(箭头均指示砾石排列的优势方位)( a—冲刷面及大致平行层面排列的砾石;b—冲刷面上呈双向粒序层理堆积、呈顺层、定向排列的砾石) |
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