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华北奥陶纪疑源类新知 被引量:3

NEW DATA OF THE ORDOVICIAN ACRITARCHS FROM NORTH CHINA
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摘要 渤海湾北部井下和地表样品中发现奥陶纪疑源类.根据其纵、横向变化,将其分为5个组合并与华北以往发表的疑源类组合对比.华北出现原产于澳大利亚奥陶系和波罗的海区奥陶系疑源类分子,但迄今在华北未发现奥陶纪环冈瓦纳疑源类生物区的标志分子,似乎说明华北奥陶纪疑源类亲缘关系与澳大利亚、波罗的海区较为接近,而不属于环冈瓦纳疑源类生物区.根据目前资料尚难以对华北奥陶纪疑源类的生物区归属作出明确结论.
出处 《地层学杂志》 CSCD 北大核心 2001年第z1期377-382,共8页 Journal of Stratigraphy
基金 国家自然科学基金(No.49972007)和国家重点基础研究发展规划项目(G2000077700)及中国科学院现代地层古生物学开放实验室(No.990704)联合资助.
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