| 诸广山“三九”地区铀矿化特征及成矿机理探讨 |
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| 引用本文： | 梅水泉.诸广山“三九”地区铀矿化特征及成矿机理探讨[J].湖南地质,1996,15(1):39-43. |
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| 作者姓名： | 梅水泉 |
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| 作者单位： | 中南地勘局三○六大队 |
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| 摘 要： | “三九”地区铀矿化主要类型花岗岩类的热液脉型和碎裂变岩型。成矿热液活动由早阶段到晚阶段在空间上似具有由高向低,氧逸度具有由低到高的演变特征。岩体的自变质和碱交换作用及其外接触带的气化热力变质作用是成矿元素铀的活化活移及预测富集的重要成矿地质作用;热液沸腾、交代蚀变及环流冷却是主要的铀成矿作用机制。
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| 关 键 词： | 成矿机理 诸广山 铀矿床 矿化 |
Uranium Mineralization and Mechanism of Deposit Formation in"Three Nine"District of Zhuguangshan Granite |
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| Mei Shuiquan..Uranium Mineralization and Mechanism of Deposit Formation in"Three Nine"District of Zhuguangshan Granite[J].Hunan Geology,1996,15(1):39-43. |
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| Authors: | Mei Shuiquan |
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| Institution: | 306 Brigade of Central-South Bureau Of Geology and Prospecting |
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| Abstract: | The type of uranium mineralization in "Three Nine" district belongs mainly to the scope of hydrothermal vein my and Of altered broken rocks in granite.From early to late stage the activity of mineralized hydrothermal solution seems to move from higher position to lower Place in spatial distribution and it changes its fugacity from lower to higher value.The autometamorphism and the alkline meatasomatism in granite itself and poeumatolytic metamorphism at the outer part of the contact zone of granite are the main geologic Processes causing the activation,migration and the Pre-accumulation of the oro-forming element,uranium;the boiling of hydrothermal solution,metasomatic alteration and the cooling due to the circulation of thermal water are the chief mechanisms of u-mineralization. |
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| Keywords: | feature of U-mineralization mechanism of deposit-forming Zhuguangshan |
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