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stromatolites
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stromatolites
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stromatolites
叠层石
由营光合作用的原核生物(蓝藻和细菌)所建造的一种生物沉积结构,是前寒武纪未变质的碳酸盐沉积中最常见的一种“准化石”。
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river fishery environment
river flood disaster
river flood forecasting
river flood routing calculation
river floods in China
river flow estimation
River God
river governing traverse planning
river gradient
rivergradient observation slope observation
river head
River Huan and Wuxie Scenic and Historic Area
river hydrology
river improvement survey
riverine landscape
river-lake relation
river-lake relationship
river-lake system connectivity
river landform
river landscape
River La Plata Region People’s Fight of Resistance against Britain
river loaches
river longitudinal profile
river magistrate
river management
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