Palynofloras and Age of the Liushagang and Weizhou Formations in the Beibuwan Basin, South China Sea
详细信息
- 责任者：Xie Jinyou (Zhanjiang Branch of CNOOC ; Zhanjiang 524057 ; China) ; Li Jun
- 刊名：Acta Palaeontologica Sinica
- 出版年：2012
- 卷期：51(3)
- 关键词：始新世 ; Eocene ; 渐新世 ; Oligocene ; 孢粉组合 ; palynological assemblage ; 北部湾 ; Beibu Gulf
- 页码：p.385-394
- 图表：4 illus., 14 refs.
- 分类号：1200
- issnNo：ISSN0001-6616
- isbnNo：CN32-1188/Q
摘要
In this paper, the authors report the palynological assemblages of drill holes at Liushagang Formation and Weizhou Formation from Beibuwan Basin,South China Sea.Four palynological assemblages of Liushagang Formation,three palynological assemblages and eight sub-assemblages of Weizhou Formation were found based on the dominant assemblages partition and the diagnostic individual analysis.The established age of palynological assemblages of Liushagang Formation is in the Eocene,while the first interval dominated in algae in Liushagang Formation is in the Late Eocene.Meanwhile,the age of palynological assemblages of Weizhou Formation belongs to Oligocene.In Beibuwan Basin,the boundary of the Eocene and Oligocene boundary is between Liu-shagang Formation and Weizhou Formation.
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