张小强,赵亚云,卫永华,张维乾,黄凯平,郑懋荣.黔中断裂带特征及其与铀矿成矿作用探讨[J].贵州地质,2022,39(1):19-29 |
黔中断裂带特征及其与铀矿成矿作用探讨 |
Characteristics of the Central Guizhou Fault Zone and Its Discussion with Uranium Mineralization |
投稿时间:2021-03-08 |
DOI: |
中文关键词: 黔中断裂带 特征 铀矿 成矿作用 构造和热液 贵州 |
英文关键词:Central Guizhou fault Zone Characteristics Uranium deposit Mineralization Tectonics and Hydrotherm Guizhou |
基金项目:贵州省整装勘查第二批项目(编号:ZZKC2013-27)、中国核工业地质局基础地质项目(编号:201922-3)、贵州省有色金属和核工业地质勘查局项目(2013-07) 项目联合资助。 |
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中文摘要: |
黔中断裂带形成于早古生代之前,是黔中重要的控岩-控矿构造复合带。本文通过对该断裂带特征及铀成矿关系分析研究,运用现代热液成矿理论,打破以往沉积-表生成矿思维束缚,认为断裂带内铀成矿的核心是构造和热液作用的叠合,成矿机制是幔源含U流体活动的参与和深部热液流体多次叠加改造,铀源主要为富铀的黑色岩系和晚中生代玄武岩;铀矿体主要赋存部位为断裂带上盘次级构造、层间破碎带,其次为断裂带局部,构造与热点复合地段是很好的铀成矿部位。 |
英文摘要: |
The fault zone of the centre Guizhou was formed before the Early Paleozoic and it’s an important rock-control,ore-control,structural complex zone in central GuiZhouIn this paper,based on the analysis and study from the fault zone characteristics and its uranium mineralization relationship,using modern hydrothermal metallogenic theory,breaking the shackles of sedimentary-surface metallogenic thinking in the past,it’s thought that the core of fault zone uranium mineralization is the superposition of tectonic and hydrothermal processesAnd the metallogenic mechanism is the participation of mantle-derived U-bearing fluids and the multiple superimposition and transformation of deep hydrothermal fluidsThe uranium sources are mainly uranium-rich black rock series and late Mesozoic basaltsThe main uranium ore bodies are located in secondary structures in the upper plate of fault zone and interlayer fracture zone and secondly local fault zoneEspecially,the composite zone of structure and hot spot is very good uranium mineralization location |
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