| 江西盛源盆地橄榄玄粗岩系列火山岩长石矿物特征及成因信息 |
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| 引用本文： | 谭桂丽,吴後南,凌洪飞.江西盛源盆地橄榄玄粗岩系列火山岩长石矿物特征及成因信息[J].资源调查与环境,2011,32(3):169-176. |
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| 作者姓名： | 谭桂丽 吴後南 凌洪飞 |
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| 作者单位： | 1. 南京地质矿产研究所,南京,210016
2. 南京大学地球科学系,南京,210009 |
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| 基金项目： | 中国核工业地质局科研项目(2006YG026)资助 |
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| 摘 要： | 江西盛源盆地橄榄玄粗岩系列火山岩中的长石矿物特征为:斜长石斑晶具有反环带结构和交代净边结构,基质中存在大量的斜长石微晶,且在电子探针下研究发现基质中斜长石微晶具有钾长石环边的矿物学特点,为此类火山岩归属于橄榄玄粗岩系列火山岩提供了矿物学证据。通过对长石矿物组合特征进行研究,探讨该地区橄榄玄粗岩系列火山岩的成因以及成岩时的物理化学条件等方面的信息。
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| 关 键 词： | 橄榄玄粗岩 长石 反环带结构 交代净边结构 成因探讨 |
Characteristics of feldspars and their petrogenetic information of shoshonite series volcanic rocks from Shengyuan basin,Jiangxi province |
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| TAN Gui-li,WU Jun-qi,LING Hong-fei.Characteristics of feldspars and their petrogenetic information of shoshonite series volcanic rocks from Shengyuan basin,Jiangxi province[J].Resources Survey & Environment,2011,32(3):169-176. |
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| Authors: | TAN Gui-li WU Jun-qi LING Hong-fei |
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| Institution: | TAN Gui-li1,2,WU Jun-qi2,LING Hong-fei2(1 Nanjing institute of Geology and Mineral Resources,Nanjing,210016,China)(2 Department of Earth Science,Nanjing University,210093,China) |
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| Abstract: | The feldspars in shoshonite series volcanic rocks from Shengyuan basin,Jiangxi province,show typical mineral characteristics,such as plagioclase phenocryst with reveresd zoning texture and replacement-edulcoration rim texture,abundant plagioclase microcrystals in groundmass,and the ekectron-microprobe analysis shows K-feldspar rims around the plagioclase microcrystals,which is an evidence identifying the rocks to be the shoshonite series.By studing the characteristics of feldspar mineral assemblage,the gene... |
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| Keywords: | shoshonite series volcanic rocks feldspar reversed-zoning texture replacement-edulcoration rim texture Shengyuan basin |
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