| 宋普红,郝家栩,张国祥,邓小杰,韩颖平,黄勇.氟(F)元素地球化学异常对罗甸玉成因的指示意义[J].矿产勘查,2018,9(6):1104-1107 |
| 氟(F)元素地球化学异常对罗甸玉成因的指示意义 |
| Indicative significance for genetic mechanism about Luodian nephrite with content of fluorine |
| 投稿时间：2018-04-03 |
| DOI： |
| 中文关键词: F元素 透闪石 罗甸玉 罗甸 贵州 |
| 英文关键词: fluorine,tremolite, Luodian nephrite, Luodian county,Guizhou |
| 基金项目:贵州罗甸玉与新疆和田玉地球化学成矿模式对比研究(编号:黔地矿科合(2012)02号)、贵州省重大科技专项(编号:黔科合重大专项字【2014】6003号)及贵州省罗甸县林桃玉石矿普查(编号:XNNK-KC-[2014]022)联合资助。 |
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| 中文摘要: |
| 对罗甸玉含矿蚀变带系统采样分析发现:罗甸玉中氟(F)元素含量异常明显,远远高于原岩(碳酸盐岩),背景值且蚀变程度越强,F含量越高。罗甸玉中F元素正异常,说明在成矿过程中,F-交代置换了原岩中部分(OH)-,它是岩浆气液作用的物质记录,其高含量指示了罗甸玉的形成经历了主岩浆期后汽水热液的持续作用,为研究罗甸玉的成因机制提供了实质性的重要依据。 |
| 英文摘要: |
| Based on the sampling analysis of alteration zone of Luodian nephrite, we found that fluorine/F accounts for an amazing proportion, which is much higher than that in Protolith. What’s more, the alternation and the content of fluorine/F show the positive correlation. It means that the stronger the degree is, the higher the proportion will be. As for the function of the material record inmagmatic vapor-fliud, the higher proportion shows that F-has replaced the(OH)-in the Protolith and the formation of Luodian nephrite has experienced the hydrothermal solution after the main magmatic stage, which lays a solid foundation for further research about genetic mechanism of Luodian nephrite. |
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