| 沽源火山盆地燕山期次流纹斑岩地质地球化学特征 |
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| 引用本文： | 沈光银,薛清波. 沽源火山盆地燕山期次流纹斑岩地质地球化学特征[J]. 矿产与地质, 2011, 25(5): 412-416,435 |
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| 作者姓名： | 沈光银 薛清波 |
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| 作者单位： | 1. 天津华北地质勘查局核工业247大队,天津,301800
2. 天津华北地质勘查总院,天津,300181 |
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| 基金项目： | 天津华北地质勘查局科技创新项目(编号:津华勘2008第66号)资助 |
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| 摘 要： | 燕山期次流纹斑岩主要分布在沽源火山盆地盖层的上侏罗统张家口组火山岩中,活动时间以燕山晚期为主.次流纹斑岩体在空间分布上受断裂构造和燕山晚期火山构造控制,与铀钼矿化关系密切,矿化主要产在次流纹斑岩体接触带或其顶部的隐爆角砾岩中.次流纹斑岩与围岩呈侵入接触关系,呈岩株、岩墙、岩脉等形态产出.岩石地球化学研究表明:次流纹斑岩...
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| 关 键 词： | 火山盆地 燕山晚期 次流纹斑岩 地质地球化学特征 铀钼矿化 |
Geological and geochemical characterisics of Yanshanian perdu rhyolite porphyry in Guyuan volcanic basin |
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| SHEN Guang-yin,XUE Qing-po. Geological and geochemical characterisics of Yanshanian perdu rhyolite porphyry in Guyuan volcanic basin[J]. Mineral Resources and Geology, 2011, 25(5): 412-416,435 |
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| Authors: | SHEN Guang-yin XUE Qing-po |
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| Affiliation: | SHEN Guang-yin1,XUE Qing-po2 (1.Nuclear Industry Group No.247 Geological Team of Tianjin North China Geological Exploration Bureau,Tianjin 301800,2.Tianjin North China General Geological Exploration Institute,Tianjin 300181) |
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| Abstract: | Perdu rhyolite porphyry of Yanshanian period is mainly located in volcanic rocks of Zhangjiakou of the upper Jurassic series in Guyuan volcanic basin cover.Perdu rhyolite porphyry is controlled by faulting and volcanic structure of late Yanshan period in the spatial distribution,close relations with uranium-molybdenum mineralization,which mainly occurred in contact of perdu rhyolite porphyry and its top cryptoexplosive breccia.Perdu rhyolite porphyry intruded into surrounding rock in vein,stock and dyke for... |
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| Keywords: | volcanic basin late Yanshanian perdu rhyolite porphyry geological and geochemical characteristics U-Mo mineralization |
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