利用水流能量指数，分析了洞庭盆地第四纪沉积环境的演变特征。
The evolution of sedimentary environment in the Quaternary in Dongting Basin is analyzed by using the flow energy index.
本区第四纪独特的沉积环境是形成大型生物气藏最重要的地质条件。
The unique depositional environments of this area in the Quaternary are the important conditions for forming the large scale biogenic gas pools.
页岩中风成粉砂沉积的发现，可以进一步为研究有关湖相页岩和第四纪纹泥的古气候变化、正确恢复古湖泊沉积环境提供良好的指标。
The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.
河北平原东部第四纪更新世沉积环境决定本区地下水为氟离子富集区。
The high concentration of fluorine anion in groundwater is determined by the Pleistocene sedimentary environment in east Hebei plain.
河北平原东部第四纪更新世沉积环境决定本区地下水为氟离子富集区。
The high concentration of fluorine anion in groundwater is determined by the Pleistocene sedimentary environment in east Hebei plain.
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