陈旭,Stig M.Bergstrm

• 1:现代古生物学和地层学国家重点实验室 中国科学院南京地质古生物研究所
• 2:俄亥俄州立大学地球科学系
• 3:江苏南京210008
• 4:美国哥伦布斯OH43210

摘要(Abstract)：

英国学者Sedgwick、Murchison和Lapworth等早在19世纪便对奥陶系作出了先驱性的研究,包括创建了奥陶系。但百年来各国主要都集中于地区性的奥陶系研究,并建立了地区性的序列和标准,这在事实上一直都把英国的奥陶系划分作为国际间的对比标准。近三十年来,随着国际奥陶系分会不断推进各国奥陶系的研究工作,并在2007年完成了奥陶系三统七阶的全部全球层型剖面和点位(GSSP)的研究,建立了全球标准。为了便于运用,建议将奥陶系的三统七阶分为20个间隔段,以利于洲际对比,并把地区性的统与阶准确地对比到国际标准上去。同时附上与年代地层划分相一致的奥陶系全球碳同位素的变化曲线。

关键词(KeyWords)： 年代地层学;阶;统;系;奥陶系

Abstract:

Keywords:

基金项目(Foundation): 科技部科技基础工作专项(2006FY120300-4)资助

作者(Author): 陈旭,Stig M.Bergstrm

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