| 内蒙古太仆寺旗姚五沟花岗斑岩地球化学特征研究 |
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| 引用本文： | 欧阳海松,何红生,胡祥昭.内蒙古太仆寺旗姚五沟花岗斑岩地球化学特征研究[J].矿物岩石地球化学通报,2009,28(3):228-231. |
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| 作者姓名： | 欧阳海松 何红生 胡祥昭 |
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| 作者单位： | 1. 中南大学,地学与环境工程学院,长沙,410083
2. 湖南省煤炭地质勘查院,长沙,410000 |
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| 摘 要： | 姚五沟花岗斑岩呈小岩株产于内蒙古太仆寺旗境内,前人对其研究较少.本文研究了它的地球化学特征,结果表明其主要矿物成分为石英、钾长石和斜长石,次要矿物为黑云母;SiO2平均值为71%,富钾贫钠,K2O/Na2O值平均为1.6,A/CNK值均大于1.1,属强过铝质花岗岩,Al2O3含量平均为13.94%.分异指数高,达91.49;稀土元素总量较高,平均为286.946(含Y),LREE/HREE平均比值为8.298,δEu平均值为0.445,具弱的铕负异常.其应属S型花岗岩.
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| 关 键 词： | 花岗斑岩 岩石地球化学 稀土元素 内蒙古太仆寺旗 |
Geochemical Characteristics Study of Yaowugou Granite Porphyry in Taipusi Qi |
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| OUYANG Hai-song,HE Hong-sheng,HU Xiang-zhao.Geochemical Characteristics Study of Yaowugou Granite Porphyry in Taipusi Qi[J].Bulletin of Mineralogy Petrology and Geochemistry,2009,28(3):228-231. |
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| Authors: | OUYANG Hai-song HE Hong-sheng HU Xiang-zhao |
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| Institution: | OUYANG Hai-song1,HE Hong-sheng2,HU Xiang-zhao11.School of Geoscience , Environmental Engineering,Central South University,Changsha 410083,China,2.Hunan Institute of Geological Exploration of Coal,Changsha 410000 |
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| Abstract: | Yaowugou granite porphyry,which is seldom studied,locates in Taipusi Qi of Inner Mongolia.This paper studied the geochemical characteristics of Yaowugou granite porphyry using microscopic and geochemical analysis techniques.The occurrence of Yaowugou granite porphyry is,approximately,a north-south ellipsoidal structure with porphyritic texture.The major mineral components of Yaowugou granite porphyry are quartz,plagioclas,plagioclase;and the secondary mineral component is biotite.The average content of SiO2... |
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| Keywords: | granite porphyry petrology and geochemistry lanthanon Taipusi Qi of Inner Mongolia |
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