| 山间盆地砂岩型铀矿成矿物质来源研究——以吐哈盆地和二连盆地为例 |
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| 引用本文： | 张成勇,聂逢君,权建平,邓薇.山间盆地砂岩型铀矿成矿物质来源研究——以吐哈盆地和二连盆地为例[J].东华理工大学学报（自然科学版）,2012,35(3):230-237. |
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| 作者姓名： | 张成勇 聂逢君 权建平 邓薇 |
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| 作者单位： | 1. 东华理工大学放射性地质与勘探技术国防重点学科实验室,江西抚州,344000
2. 核工业203研究所,陕西咸阳,712000 |
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| 基金项目： | 国家自然科学基金项目，东华理工大学放射性地质与勘探国防重点学科实验室开放基金项目 |
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| 摘 要： | 通过野外观察、镜下鉴定和锆石测年分析,研究吐哈盆地和二连盆地砂岩型铀矿的成矿物质来源。研究结果表明,吐哈盆地目的层锆石年龄主要集中在(440.9±2.3)Ma,其物源应为加里东期片麻状花岗岩侵入体,铀源主要来自于预富集。二连盆地物源主要来源于古河道上游和两侧岩体,铀源主要以岩体铀的风化淋滤为主,地层中火山碎屑岩也为铀的富集提供了补充。并在此基础上分析了山间盆地铀源条件对铀成矿的控制与影响。
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| 关 键 词： | 铀源 蚀源区 LA-MC-ICP-MS 山间盆地 |
Sources of Sandstone-type Uranium Ore of Intermountain Basin——Taking Tu-Ha Basin and Er'lian Basin as Examples |
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| ZHANG Cheng-yong
,
NIE Feng-jun
,
QUAN Jian-ping
,
DENG Wei.Sources of Sandstone-type Uranium Ore of Intermountain Basin——Taking Tu-Ha Basin and Er'lian Basin as Examples[J].Journal of East China Institute of Technology(Natural Science Edition),2012,35(3):230-237. |
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| Authors: | ZHANG Cheng-yong NIE Feng-jun QUAN Jian-ping DENG Wei |
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| Institution: | 1 (1. Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China Institute of Technology,Fuzhou, JX 344000,China;2. Research Institute No.203, CNNC, Xianyang, SX 712000, China) |
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| Abstract: | The material sources of sandstone-type uranium in Tu-Ha basin and Er’lian basin are studied with microscopic identification, field observations and zircon dating analysis。The results show that,the ages of target layer zircon in Tu-Ha basin mainly is (440.9 ± 2.3) Ma, the purpose of layer sand provenance should be come from Caledonian gneissic granite intrusions,the main source of uranium come from the pre-concentration. In Er’lian basin, source material mainly comes from the ancient river upstream and both sides of the rock. The main source of uranium comes from weathered rock, pyroclastic rocks also provide additional enrichment of uranium. And on this basis, the control and influence of uranium source conditions of mountain basins are analysed. |
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| Keywords: | uranium sources sources area LA-MC-ICP-MS intermountain basin |
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