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THE PYROXENES COMPOSITION AND PETROCHMICAL CHARACTERISTICS OF ZHUOPAN-LIUHE ALKALI ROCK BODIES IN WESTERN YUNNAN PROVINCE,CHINA
Author(s): 
Pages: 15-19
Year: Issue:  2
Journal: JOURNAL OF MINERALOGY AND PETROLOGY

Keyword:  辉石成分岩石化学钾质碱性岩卓潘和六合云南;
Abstract: 卓潘、六合碱性岩体地属哀牢山-金沙江碱性岩带,由碱性辉长岩、正长岩和正长斑岩组成,岩石学分析表明,二者均属钾质碱性系列的岩石,具有富碱、高钾、高Ca及高K2O/Na2O的特征.岩石中赋存的辉石是透辉石和钙铁辉石,属钙质辉石,为非碱性暗色矿物.钙质辉石的出现与碱性岩的化学成分密切相关,正是由于岩石中高含量Ca的存在,导致了钙质辉石的产生.
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