| 贵州南加花岗岩类特征及其与成矿的关系 |
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| 引用本文： | 戴传固,杨大欢.贵州南加花岗岩类特征及其与成矿的关系[J].贵州地质,2000,17(3):160-165,175. |
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| 作者姓名： | 戴传固 杨大欢 |
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| 作者单位： | 贯州地勘局区调院贯州贯阳 550005 |
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| 摘 要： | 从江县南加花岗岩类包括似斑状花岗岩及二长花岗斑岩。本文论述了它们的地球化学特征,并对其形成的构造环境及与成矿作用的关系进行了不的分析。（１）主状花岗岩类具Ｓ型花岗岩的特点,这可能形成于先封闭“弧后盆地碰撞带”;（２）二长花岗斑岩既具有Ｉ型花岗岩的某些特点,也有Ｓ型花岗岩的一些特点,可能属碰撞后形成的钙碱性岩石;（３）似斑状花岗岩类与钨锡矿化关系密切,二长花岗斑岩则可能与铜矿化有关系。
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| 关 键 词： | 花岗岩类 地质 地球化学 构造环境 成矿作用 |
| 文章编号： | 1000-5943(2000)03-0160-06 |
A Characteristic of Nanjia Granite Rocks and Relationship with Ore-forming Process in Guizhou |
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| DAI Chuan_guo,YANG Da_huan.A Characteristic of Nanjia Granite Rocks and Relationship with Ore-forming Process in Guizhou[J].Guizhou Geology,2000,17(3):160-165,175. |
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| Authors: | DAI Chuan_guo YANG Da_huan |
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| Abstract: | Nanjia granitic rocks in Congjiang county have similar porphyritic granite and monzonitic granophyre. The following this paper presents their geology and geochemistry, and initially analyses the relationship between the forming structural surroundings and metallogenesis: 1) Similar porphyritic granite formed in early intact "collision belt of solitary basin" possess the characteristic of S_type granite; 2) monzonitic granophyre possess either I_type granite or S_type granite in certain characteristic, and belong to calc_alkaline rocks; 3) Similar porphyritic granitic rocks have strongly relationship with W_Sn mineralization, and monzonitic granophyre is related to Cu mineralization.WT5HZ] |
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| Keywords: | granitic rocks geology geochemistry structural surroundings metallogenesis Guizhou |
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