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现代地质 ›› 2011, Vol. 25 ›› Issue (5): 987-994.

• 古生物学 • 上一篇    下一篇

川西北二叠系栖霞组小有孔虫动物群

张舟1,张廷山1,2,蓝光志1   

  1. 1西南石油大学 资源与环境学院,四川 成都610500;
    2西南石油大学 油气藏地质与开发工程国家重点实验室,四川 成都610500
  • 收稿日期:2011-04-22 修回日期:2011-08-18 出版日期:2011-10-26 发布日期:2011-11-03
  • 通讯作者: 张庭山,男,教授,博士生导师,1961年出生,古生物学与地层学专业,主要从事沉积地质学和古生态学研究。Email:zts_3@126.com。
  • 作者简介:张舟,男,硕士研究生,1984年出生,矿产普查与勘探专业,主要从事沉积学与古生物学的研究工作。 Email:zhangzhou66@sina.com。
  • 基金资助:

    国家科技重大专项所属子课题(2008ZX05007-004-03)。

Nonfusulinid Foraminiferal Fauna from the Permian Chihsia Formation, Northwestern Sichuan Basin

 ZHANG  Zhou-1, ZHANG  Ting-Shan-1, 2 , LA  Guang-Zhi-1   

  1. 1School of Resources and Environment, Southwest Petroleum University, Chengdu,Sichuan610500, China; 2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu,Sichuan610500,China
  • Received:2011-04-22 Revised:2011-08-18 Online:2011-10-26 Published:2011-11-03

摘要:

川西北广元旺苍王家沟剖面二叠系栖霞组小有孔虫动物群由14属27种组成(含比较种、亚种而不含未定种),其中Globivalvulina属及Palaeotextularidae科的物种分异度最高,合计约占总种数的50%。在系统分类的基础上,建立了Globivalvulina组合,作为识别该区二叠纪最大海进时期的标志性动物群。通过对该剖面栖霞组小有孔虫动物群的研究,不仅丰富了四川盆地二叠纪有孔虫的资料,而且为川西北王家沟剖面栖霞组与华南其他地区同期地层的对比提供了更多生物方面的依据。

关键词: 小有孔虫动物群, 栖霞组, 二叠系, 王家沟剖面, 川西北地区

Abstract:

The Permian nonfusulinid foraminifers of the Chihsia Formation are collected from Wangjiagou section in Wangcang County, Northwestern Sichuan Basin. The Chihsia Formation of Wangjiagou section is a suit of mediumbedded to thickbedded limestones, with thickness of about 108 meters. Based on the systematic study to the Chihsia Formation, 27 species of 14 genera (including conformis species and subspecies) of the nonfusulinid foraminiferal fauna have been recognized in the Wangjiagou section. The Globivalvulina assemblage is suggested as indicative fauna for recognition of the Permian largest transgressive period. The result of this study not only enriches the fossil database of Sichuan Basin, but also provides more palaeontological evidences for stratigraphic correlation in South China.

Key words: nonfusulinid foraminifer, Chihsia Formation, Permian, Wangjiagou section, Northwestern Sichuan Basin