彭善池

• 1:现代古生物学与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

摘要(Abstract)：

将早先提出的华南寒武系4统9阶的年代地层系统,修订成4统10阶,除王村阶的底界略高于全球鼓山阶(Drumian Stage)的底界外,其余界线都与目前的全球4统10阶的年代地层界线一致。新系统采纳了在我国华南建立的全球芙蓉统、排碧阶和古丈阶,在原桃源阶的上部另建"牛车河阶"。原王村阶和桃源阶的时限因这一修订有所缩减。全球鼓山阶的底界与台江阶上部的Ptychagnostus atavus带底界可以精确对比。滇东统包含晋宁阶和梅树村阶(狭义)两个年代地层单位,晋宁阶的底界采用全球寒武系的底界,梅树村阶的底界采用罗惠麟等1994年正式修订后的定义,即位于梅树村剖面的"B"点。梅树村阶的原始定义仅指梅树村剖面的磷块岩层(即现今的中谊村段),它的底界高于现在的以Tricophycus pedum首现定义的全球寒武系底界。

关键词(KeyWords)： 年代地层;修订;古丈阶;牛车河阶;梅树村阶;寒武系;华南

Abstract:

Keywords:

基金项目(Foundation): 中国科学院创新方向性项目(KZCX2-SW-129);; 国家自然科学基金(No40332018);; 科技部(2001DEA200020-2,G2000077702);; 中国石化股份有限公司中国海相地层研究项目联合资助

作者(Author): 彭善池

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