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华北中元古代浅海碳酸盐沉淀方式变化:海水氧化还原条件波动的响应?*
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吴孟亭1,2, 方浩3, 孙龙飞3, 史晓颖1,3, 汤冬杰1,2 |
Variations in precipitation pathways of Mesoproterozoic shallow seawater carbonates from North China Platform:response in seawater redox fluctuations?
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Wu Meng-Ting 1,2, Fang Hao 3, Sun Long-Fei 3, Shi Xiao-Ying 1,3, Tang Dong-Jie 1,2
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华北高于庄组、雾迷山组和铁岭组沉积特征 A—蓟县高于庄组三段暗色钙质泥岩夹白云质灰岩;B—蓟县高于庄组三段臼齿构造;C—蓟县高于庄组三段似丘状交错层理(箭头示冲刷面);D—凌源雾迷山组四段交错层理;E—凌源雾迷山组四段微生物席纹层(风化面灰白色)与灰泥沉积互层(风化面深灰色);F—凌源雾迷山组四段扁平状砾石;G—蓟县铁岭组一段含锰白云岩夹浅绿色海绿石页岩;H—蓟县铁岭组二段底部竹叶状砾屑灰岩中的扁平状砾石; I—蓟县铁岭组二段柱状叠层石 |
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