吉林大阳岔寒武系-奥陶系界线层型候选剖面再描述Redescription of the Dayangcha Section as a candidate for the Global Cambrian-Ordovician Boundary Stratotype,Jilin Province,China
张俊明,王海峰,李国祥,陈均远
摘要(Abstract)：
吉林大阳岔剖面是目前国际寒武系-奥陶系界线工作组(ICOBWG)所确认的全球唯一的寒武系-奥陶系界线层型候选剖面。运用坐标系统对大阳岔界线剖面进行重新测量、详细描述Cambrooistodus 带至 Cordylodus lindstromi 带45.9m 厚的地层序列,将不同学者在大阳岔剖面所采用的样品采集系统相应地标在新的坐标剖面上,以统一它们在新坐标剖面上的坐标位,置点。新的坐标剖面将为国际寒武系-奥陶系界线工作组在确定全球界线层型剖面和点位(GSSP)时提供一个共同的参照标准。
关键词(KeyWords)： 坐标系统;层型候选剖面;寒武系—奥陶系界线;大阳岔;吉林
基金项目(Foundation): 本项研究得到了国家自然科学基金项目(No.49502020);; 中国科学院院长基金特别支持项目(1992);; 中国科学院南京分院择优基金项目(1994)的资助
作者(Author): 张俊明,王海峰,李国祥,陈均远
DOI: 10.19839/j.cnki.dcxzz.1996.02.001
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