| 石溪盆地和三百山盆地粗面岩地球化学特征及其地质意义 |
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| 引用本文： | 张敏,巫建华,祝禧艳.石溪盆地和三百山盆地粗面岩地球化学特征及其地质意义[J].华东地质学院学报,2009,32(1):52-60. |
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| 作者姓名： | 张敏 巫建华 祝禧艳 |
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| 作者单位： | 张敏,巫建华,ZHANG Min,WU Jian-hua(东华理工大学地球科学与探测学院,江西,抚州,344000);祝禧艳,ZHU Xi-yan(中国科学院地质与地球物理研究所,北京,100029)
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| 摘 要： | 石溪盆地和三百山盆地粗面岩均具有高钾、高碱、高K2O／Na2O、高铝、低铁、低钛、氧化指数较高的特点，在SiO2-K2O图解中落入橄榄玄粗岩系列岩石区域之内，且富集高场强元素（HFSE）和大离子亲石元素（LILE），将两盆地粗面岩归为橄榄玄粗岩系列岩石。两盆地粗面岩均为地壳起源岩浆，且后期有地幔物质的加入，构造环境都是碰撞后拉张构造环境。不同的是石溪盆地粗面岩是经历了较强的结晶分异作用的产物。
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| 关 键 词： | 赣南 赣东北 粗面岩 橄榄玄粗岩 |
Geochemical Characteristics of Trachyte in Shixi and Sanbaishan Basin,and Its Geological Significance |
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| ZHANG Min,WU Jian-hua,ZHU Xi-yan.Geochemical Characteristics of Trachyte in Shixi and Sanbaishan Basin,and Its Geological Significance[J].Journal of East China Geological Institute,2009,32(1):52-60. |
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| Authors: | ZHANG Min WU Jian-hua ZHU Xi-yan |
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| Institution: | 1. Collage of earth science and mapping;East China University of Technology;fuzhou;JiangXi344000;China;2. Institute of Geology and Geophysics;Chinese Academy of Sciences;Beijing;100029 |
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| Abstract: | Trachyte in Shixi and Sanbaishan basins are characterized by :high K and Al content,high alkali,high K2O/Na2O,low Fe and Ti content ,high Oxidation Coefficient,rich in large ion lithophile elements(LIlE) and high strength field elements(HFSE),so the trachyte in Shixi and Sanbaishan basins belongs to shoshonite rocks. Both trachytes are Originated from Crust,and has joined the mantle material the latter,the tectonic setting is to extensional tectonic setting. The difference is that Trachyte of shixi Basin is... |
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| Keywords: | south of Jiangxi Northeast of Jiangxi Trachyte Shoshonite |
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