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THE CHERTY MICROBOLITE IN THE DEEPER WATER FACIES DURING THE PRECAMBRIAN-CAMBRIAN TRANSITIONAL PERIOD IN NORTHEAST GUANGXI PROVINCE,CHINA

THE CHERTY MICROBOLITE IN THE DEEPER WATER FACIES DURING THE PRECAMBRIAN-CAMBRIAN TRANSITIONAL PERIOD IN NORTHEAST GUANGXI PROVINCE,CHINA

桂东北较深水相前寒武纪-寒武纪之交的硅质微生物岩