以下为句子列表：
英文: In oil field of China, fluvial and delta facies reservoir are main depositional facies type, and their geological reserve accounting for nearly 80%of total reserve of clastic rock facies.
中文: 中国油田河流相与三角洲相储层的地质储量占碎屑岩相总储量的近80％，是主要的沉积相类型。
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英文: This formation is dominated by a set of sandstone-mudstone dark clastic rock series which belongs to marginal marine deposit at the end of the Gondwana Carboniferous-Permian glacier period.
中文: 该组主要为一套砂岩－泥岩的暗色碎屑岩系，属冈瓦纳石炭－二叠纪冰川末期的边缘海沉积。
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