| 320铀矿床隐爆成矿特征及其找矿意义 |
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| 引用本文： | 肖晋,郑福瑞.320铀矿床隐爆成矿特征及其找矿意义[J].铀矿地质,1994,10(5):285-293. |
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| 作者姓名： | 肖晋 郑福瑞 |
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| 作者单位： | 中南地勘局２３０研究所 |
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| 摘 要： | ３２０铀矿床控矿地质体是一种由岩浆气液隐爆作用所形成的硅质角砾岩体，矿床严格受其控制，属隐爆角砾岩型铀（钼）矿床。同位素组成、稀土元素配分及微量元素等地球化学研究数据表明，成岩成矿物质（除围岩破碎产物外）来源于混合源型岩浆房顶部的＂挥－硅岩岩浆体系＂，成岩成矿作用大体同步。湖南地区以及全国不少地区都存在有与此类似的硅质角砾岩体，因而具十分重要的找矿意义。
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| 关 键 词： | 岩浆气液隐爆，硅质角砾岩体，隐伏铀矿化，挥－硅岩浆体系 |
CRYPTOEXPLOSIVE METALLOGENETIC CHARACTERISTICS IN THE URANIUM DEPOSIT NO. 320 AND ITS PROSPECTING SIGNIFICANCE |
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| Xiao Jin,Zheng Furui,Han Lansheng.CRYPTOEXPLOSIVE METALLOGENETIC CHARACTERISTICS IN THE URANIUM DEPOSIT NO. 320 AND ITS PROSPECTING SIGNIFICANCE[J].Uranium Geology,1994,10(5):285-293. |
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| Authors: | Xiao Jin Zheng Furui Han Lansheng |
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| Abstract: | The ore-controlling geological body in uranium deposit No. 320 is a kind of siliceousbreccia resulted from magmatic gas-fluid cryptoexplosion. The deposit is strictly controlledby this geological body,and belongs to cryptoexplosive breccia type uranium(molybdenum)deposit. Geochemical research data from isotopic compositions,rare earth elements partitionand trace elements indicate that petrogenetic and metallogenetic matters(except for shattered materials of wall rocks) are derived from the volatile-siliceous magmatic system whichwas formed on the top of the magma chamber of mixed sources type. The petrogenesis andmetallogeneses were approximately simultaneous. Similar siliceous breccias are widely distributed not only in Hunan region but also in many regions in China,therefore it is of veryimportant prospecting significance. |
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| Keywords: | Magmatic gas-fluid cryptoexplosion Siliceous breccia body Concealed uranium mineralization Volatile-Siliceous magmatic system |
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