泥盆系法门阶四分已成定局DEVONIAN FAMENNIAN STAGE FOUR-FOLDED HAVE GOT FINAL CONCLUSION
王成源
摘要(Abstract)：
<正> 法门阶亚阶的划分是国际地层委员会泥盆系分会近年来讨论的重点(王成源,1994、2003)。德国早已组建了晚泥盆世亚阶划分的工作组,提出了德国的法门阶的划分方案。他们一致认为法门阶应当三分,即以早Palmatolepis marginifera带的底界为中法门阶的底界,早Palmatolepis expansa带的底界为晚法门亚阶的底界。比利时学者(Streel et al.,2002)极力主张法门阶四分,建立最晚法门亚阶,
关键词(KeyWords)： 泥盆系;法门阶;亚阶;地层划分
基金项目(Foundation):
作者(Author): 王成源
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