摘要
用等离子光谱仪（ＩＣＰ）方法，对安徽北部肖县下奥陶统顶部１４个岩溶岩样品的稀土元素（１５个项目）含量进行了测定分析。在阐明ＲＥＥ总量和配分模式及ＬＲＥＥ和ＨＲＥＥ、δＥｕ和δＣｅ特征及相互关系的基础上，讨论了稀土地球化学特征与古岩溶发育环境的关系。
The REE contents of 14 samples selected from Ordovician carbonate sections in Xiao County,North Anhui have been investigated using ICP.Based on describing REE,the distributed model of REE,characteristics and relations between LREE and HREE Eu and Ce,it is discussed in detail that the relation between REE geochemical characteristics and paleokarst development.The quantitative identification standards of karstic erosion degree and karstification environment are also preliminarily discussed.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1999年第4期10-15,共6页
Coal Geology & Exploration
基金
煤炭科学基金
关键词
岩溶岩
稀土元素
地球化学
古环境
奥陶系
karst rock
Rare earth elements
Paleoenvironment
Ordovician system
northerm Anhui
