石炭系上、下统分界研究概况与展望
杨敬之 ,徐珊红
摘要(Abstract)：
<正> 石炭系是重要含煤地层之一,因此成为长期以来令人注目的研究对象。其沉积类型和岩相变化复杂,就石炭系的划分和中间界线而论,西欧、东欧、北美都不一致,各地区有各自的发展演变历史和划分标准,对比困难。西欧将石炭系两分为Dinantian及Silesian,而Silesian底部的Namurian是目前解决石炭系中间界线的关键。北美将国际上通称的石炭系分为Mississippian和Pennsylvanian,其单位名称不断变更,直到1975年第八届国
关键词(KeyWords)：
基金项目(Foundation):
作者(Author): 杨敬之 ,徐珊红
DOI: 10.19839/j.cnki.dcxzz.1986.04.008
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