以下为句子列表：
英文: The lower part formed in a littoral-epeiric environment, is a series of elastic rocks, partly contains carbonate rock and metamorphic basic volcanic rocks and the upper part formed in a bathypelagic environment is a series of sediments with chert, partly
中文: 其下部为一套滨浅相碎屑岩，局部夹碳酸盐岩、变质基性火山岩；上部为一套深水沉积岩系夹硅质岩，局部夹变质基性火山岩。
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