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| 四川省若尔盖地区510-1热液型铀矿床形成的物理化学条件研究 | |
| 引用本文： | 黄昌华,张成江,周兵. 四川省若尔盖地区510-1热液型铀矿床形成的物理化学条件研究[J]. 矿物学报, 2012, 32(3): 398-402 |
| 作者姓名： | 黄昌华 张成江 周兵 |
| 作者单位： | 1. 成都理工大学核技术与自动化工程学院,四川成都610059 四川省核工业地质调查院,四川成都610061 2. 成都理工大学核技术与自动化工程学院,四川成都,610059 3. 四川省核工业地质调查院,四川成都,610061 |
| 摘 要： | 根据矿物包裹体分析和热力学计算,结合矿床地质地球化学特征,研究了若尔盖地区510-1热液型铀矿床形成的物理化学条件。结果表明,510-1铀矿床的形成温度为165～245℃,压力为500×105～600×105Pa,pH值为5.35,Eh值为-0.2015 V,氧逸度为1.38×10-31Pa。初始含矿热液具有较高温压特征,来源于深部。成矿介质属于中低温、中压、低氧逸度、中性或弱酸性的还原环境。 |
| 关 键 词： | 铀矿床 含矿热液 物理化学条件 若尔盖地区 |
Physical-Chemical Conditions of Mineralization of No.510-1 Hydrothermal-Type Uranium Deposit of Ruergai Area,Sichuan Province |
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| HUANG Chang-hua,ZHANG Cheng-jiang,ZHOU Bing. Physical-Chemical Conditions of Mineralization of No.510-1 Hydrothermal-Type Uranium Deposit of Ruergai Area,Sichuan Province[J]. Acta Mineralogica Sinica, 2012, 32(3): 398-402 | |
| Authors: | HUANG Chang-hua ZHANG Cheng-jiang ZHOU Bing |
| Affiliation: | 1.The College of Applied Nuclear Technology and Automatic Engineering,Chengdu University of Technology, Chengdu 610059,China;2.Sichuan Nuclear Geology Institute,Chengdu 610061,China) |
| Abstract: | According to the data of fluid inclusions analysis,the thermodynamic methods and the geological-geochimica characteristics of the deposit,the authors studied the physical and chemical conditions for the formation of 510-1 hydrotherm-type uranium deposits in Ruergai.It turns out that the temperature of the solutions is between 165 ℃ and 245 ℃,pressure is between 500×105 Pa and 600×105 Pa,pH is 5.35,Eh is-0.2015 V,and fugacity of O2 is 1.38×10-31 Pa.It is clear that the solutions formed at higher temperature and higher pressure.It is indicated that the solutions converged from depth.The ore-forming conditions are medium-low temperature,medium pressure,low fugacity of O2,reducing environment of the neutral or subacidity. |
| Keywords: | uranium deposit ore-bearing hydrothermal fluid physico-chemical condition Ruergai area |
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