| 云南武定晚二叠世高钛辉绿岩特征及形成环境 |
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| 引用本文： | 焦骞骞.云南武定晚二叠世高钛辉绿岩特征及形成环境[J].云南地质,2012(3):396-400. |
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| 作者姓名： | 焦骞骞 |
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| 作者单位： | 云南国土资源职业学院地质矿产勘查系 |
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| 基金项目： | 云南国土资源职业学院教师科研基金项目(2011YJ02) |
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| 摘 要： | 高钛辉绿岩为富钠碱性系列,玄武岩浆有较明显的分异。稀土元素总量较高,轻稀土元素富集,无明显Eu异常或亏损。微量元素蛛网图中,Rb、Ba、Th和Hf、Zr、Sm两组元素双隆起的特征,与板内碱性玄武岩特征相似。综合多种图解判别,属于大陆裂谷环境。
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| 关 键 词： | 高钛辉绿岩 富钠碱性系列 稀土元素 大陆裂谷环境 云南武定 |
THE CHARACTERISTICS AND FORMATION ENVIRONMENT OF LATE P TI-HIGH DIABASE IN WUDING,YUNNAN |
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| JIAO Qian-qian.THE CHARACTERISTICS AND FORMATION ENVIRONMENT OF LATE P TI-HIGH DIABASE IN WUDING,YUNNAN[J].Yunnan Geology,2012(3):396-400. |
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| Authors: | JIAO Qian-qian |
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| Institution: | JIAO Qian-qian(Exploration Depertment of Geology & Mineral Resources,Yunnan Professional Institute of Land Resources,Kunming 650217) |
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| Abstract: | The Ti-high diabase belongs to the Na-rich alkaline series.The differentiation of basalt magma is very evident.The total REE is high,rich in LREE,without evident Eu anomaly or deficit.dual rises of 2 element assemblages Rb,Ba,Th and Hf,Zr,Sm on cobweb diagram,similar to the characteristics of intraplate alkaline basalt.According to multiple discriminant criteria,it is formed in the continental rift environment. |
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| Keywords: | Ti-high Diabase Na-Rich Alkaline Series REE Continental Rift Environment Wuding Yunnan |
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