GYIG OpenIR  > 矿床地球化学国家重点实验室
Newly discovered uranium mineralization at ~2.0 Ma in the Menggongjie granite-hosted uranium deposit, South China
Jin-Cheng Luo; Rui-Zhong Hu; Mostafa Fayek; Xian-Wu Bi; Shao-Hua Shi; You-Wei Chen
2017
发表期刊Journal of Asian Earth Sciences
卷号137页码:241-249
摘要

The southeastern part of the Nanling metallogenic province, South China contains numerous economically important granite-hosted, hydrothermal vein-type uranium deposits. The Miao’ershan (MES) uranium ore field is one of the most important uranium sources in China, hosts the largest Chanziping carbonaceous-siliceous-pelitic rock-type uranium deposit and several representative granite-hosted uranium deposits. The geology and geochemistry of these deposits have been extensively studied. However, accurate and precise ages for the uranium mineralization are scarce because uranium minerals in these deposits are usually fine-grained, and may have formed in several stages, thus hindering the understanding of the uranium metallogenesis of this province.

The Menggongjie (MGJ) uranium deposit is one of the largest granite-hosted uranium deposits in the MES ore field. Uranium mineralization in this deposit occurs at the central part of the MES granitic complex, accompanied with silicification, fluorination, K-metasomatism and hematitization. The ore minerals are dominated by uraninite, occurring in quartz or fluorite veinlets along fractures in altered granite. In-situ SIMS U-Pb dating on the uraninite yields the U–Pb isotopic age of 1.9 ± 0.7 Ma, which is comparable to the chemical U-Th-Pbtol uraninite age of 2.3 ± 0.1 Ma. Such ages agree well with the eruption ages of the extension-related Quaternary volcanics (2.1–1.2 Ma) in South China, suggesting that the uranium mineralization have formed at an extensional setting, possibly related to the Quaternary volcanic activities. Therefore, our robust, new dating results of the MGJ uranium deposit make it the youngest granite-hosted uranium deposit reported so far in South China and the mineralization event represents a newly identified mineralization epoch.

关键词Menggongjie Sims U-pb Granite-hosted Uranium Deposit South China
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/8380
专题矿床地球化学国家重点实验室
通讯作者Rui-Zhong Hu
推荐引用方式
GB/T 7714
Jin-Cheng Luo,Rui-Zhong Hu,Mostafa Fayek,et al. Newly discovered uranium mineralization at ~2.0 Ma in the Menggongjie granite-hosted uranium deposit, South China[J]. Journal of Asian Earth Sciences,2017,137:241-249.
APA Jin-Cheng Luo,Rui-Zhong Hu,Mostafa Fayek,Xian-Wu Bi,Shao-Hua Shi,&You-Wei Chen.(2017).Newly discovered uranium mineralization at ~2.0 Ma in the Menggongjie granite-hosted uranium deposit, South China.Journal of Asian Earth Sciences,137,241-249.
MLA Jin-Cheng Luo,et al."Newly discovered uranium mineralization at ~2.0 Ma in the Menggongjie granite-hosted uranium deposit, South China".Journal of Asian Earth Sciences 137(2017):241-249.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Newly discovered ura(2460KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Jin-Cheng Luo]的文章
[Rui-Zhong Hu]的文章
[Mostafa Fayek]的文章
百度学术
百度学术中相似的文章
[Jin-Cheng Luo]的文章
[Rui-Zhong Hu]的文章
[Mostafa Fayek]的文章
必应学术
必应学术中相似的文章
[Jin-Cheng Luo]的文章
[Rui-Zhong Hu]的文章
[Mostafa Fayek]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Newly discovered uranium mineralization at ~2.0 Ma in the Menggongjie granite-hosted uranium deposit, South China.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。