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| 松辽盆地白兴吐铀矿床成因讨论 | |
| 引用本文： | 吴仁贵,徐喆,宫文杰,蔡建芳,宁君. 松辽盆地白兴吐铀矿床成因讨论[J]. 铀矿地质, 2012, 28(3): 142-147 |
| 作者姓名： | 吴仁贵 徐喆 宫文杰 蔡建芳 宁君 |
| 作者单位： | 1. 东华理工大学核资源与环境教育部重点实验室,江西南昌,330013 2. 江西省地质调查研究院,江西南昌,330201 3. 核工业243大队,内蒙古赤峰,024006 |
| 基金项目： | 松辽盆地宝龙山地段砂岩型铀矿矿石物质组成及矿床成因探讨（东华理工大学核资源与环境教育部重点实验室）;中国中新生代铀成矿作用（核科技项目）. |
| 摘 要： | 研究表明,白兴吐铀矿床具有以下几个特点:(1)高岭石化、碳酸盐化、黄铁矿化、水云母化、绢云母化和赤铁矿化等低温热液蚀变发育,铀矿物与热液成因的胶状-团块状和莓状黄铁矿、铁白云石、赤铁矿等共生;(2)工业铀矿化呈脉状,铀矿物组合以铀石为主,少量为沥青铀矿和含钛铀矿物;(3)碳(δ13C为-2.68‰～-10.49‰)、氧(δ18 O为-10.74‰～-17.1‰)、硫(δ34S为12.24‰～14.33‰和-33.06‰)等同位素特征呈现出与大气成因水、岩浆热作用、生物改造和硫酸盐、碳酸盐岩的溶解作用关系密切。因此,认为矿床的成因具有明显的氧化作用和热液作用双重特征,铀矿化是浅部氧化作用和深部流体作用的综合结果,即矿床具有渗入型与渗出型"双开放成矿系统"的成因特点。 |
| 关 键 词： | 同位素特征 铀矿物 热液蚀变 双开放成矿系统 白兴吐铀矿床 |
Discussion on the Genesis of Baixintu Uranium Deposit in Sonliao Basin |
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| WU Ren-gui , XU Zhe , GONG Wen-jie , CAI Jian-fang , NING Jun. Discussion on the Genesis of Baixintu Uranium Deposit in Sonliao Basin[J]. Uranium Geology, 2012, 28(3): 142-147 | |
| Authors: | WU Ren-gui XU Zhe GONG Wen-jie CAI Jian-fang NING Jun |
| Affiliation: | 1. Key Laboratory of Nuclear Resources and Environment, Ministry of Education, East China Institute of Technology, Nanchang, Jiangxi 330013, China; 2. Instituteof Geological Survey of Jiangxi, Nanchang, Jiangxi 330201, China; 3. Geologic Party No. 243, CNNC, Chi feng, Inner Mongolia 024006, China) |
| Abstract: | Baixintu uranium deposit is with the following major features： （1） well developed low temperature hydrothermal alteration of kaolinization, carbonation, pyritization, hydromicazation, sericitization, hematization et al. , and uranium mineral coexisted with hydrothermal pyrite and ankerite and hematite in colloid, mass, strawberry ; （2） vein orebody with coffinite as main mineral and a little pitchblende and titanium; （3） complicated isotopes feature of Carbon （δ^13C is -2.68‰--10.49%0）, oxygen （δ18O is -10. 74‰--17. 1‰）, sulfur （δ^34S is 12.24‰-14. 33‰ and -33.06‰） which are related to atmosphere water, magma, biological transformation and the dissolution of carbonate and sulfate. The above feature shew obvious oxidization and hydrothermal action, and the synthesyzed results of shallow oxidization and deep fluid action. In other word, the deposit has ＂double-open metaIlogenic system＂ characteristics of infiltration type and exudation type. |
| Keywords: | isotopes feature uranium mineral hydrothermal alteration due-open metallogenic system Baixintu deposit |
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