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粤北诸广南铀矿聚集区岩浆、构造与铀成矿活动

钟福军 潘家永 张伟盟 赖静 周堂波 刘文泉

钟福军, 潘家永, 张伟盟, 等, 2019. 粤北诸广南铀矿聚集区岩浆、构造与铀成矿活动. 地质力学学报, 25 (S1): 108-114. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.018
引用本文: 钟福军, 潘家永, 张伟盟, 等, 2019. 粤北诸广南铀矿聚集区岩浆、构造与铀成矿活动. 地质力学学报, 25 (S1): 108-114. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.018
ZHONG Fujun, PAN Jiayong, ZHANG Weimeng, et al., 2019. MAGMATION, TECTONIC ACTIVITY AND URANIUM MINERALIZATION EVENTS OF SOUTHERN ZHUGUANG URANIUM ORE-CONCENTRATED DISTRICT, NORTHERN GUANGDONG, CHINA. Journal of Geomechanics, 25 (S1): 108-114. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.018
Citation: ZHONG Fujun, PAN Jiayong, ZHANG Weimeng, et al., 2019. MAGMATION, TECTONIC ACTIVITY AND URANIUM MINERALIZATION EVENTS OF SOUTHERN ZHUGUANG URANIUM ORE-CONCENTRATED DISTRICT, NORTHERN GUANGDONG, CHINA. Journal of Geomechanics, 25 (S1): 108-114. DOI: 10.12090/j.issn.1006-6616.2019.25.S1.018

粤北诸广南铀矿聚集区岩浆、构造与铀成矿活动

doi: 10.12090/j.issn.1006-6616.2019.25.S1.018
基金项目: 

科技部重点研发计划项目 2017YFC0602600

国家自然基金项目 41772066

国家自然基金项目 41702076

核资源与环境国家重点实验室开放基金项目 NRE1807

江西省教育厅科技项目 GJJ180394

详细信息
    作者简介:

    钟福军(1988-), 男, 博士, 讲师, 主要从事铀矿地质教学与科研工作。E-mail:zhongfujun602@126.com

  • 中图分类号: P619.14

MAGMATION, TECTONIC ACTIVITY AND URANIUM MINERALIZATION EVENTS OF SOUTHERN ZHUGUANG URANIUM ORE-CONCENTRATED DISTRICT, NORTHERN GUANGDONG, CHINA

  • 摘要: 粤北诸广南铀矿聚集区位于南岭诸广山岩体中东部,区内铀矿资源丰富,是中国重要的铀矿产基地。区内以发育花岗岩型铀矿化为主,整体上受中生代区域性岩浆—构造—热液活动"三位一体"联合控制。区域性花岗质岩浆活动对铀矿化有着预富集作用,断裂构造活动为成矿提供了有利空间,热液活动促使了花岗岩中铀的活化迁移和富集成矿。研究区的铀成矿作用具有同时性和多期性特征,形成于华南白垩纪—古近纪岩石圈伸展动力学背景下,统一受制于地壳的强烈拉张作用。由诸广山岩体与南雄盆地组成的盆山体系的白垩纪—古近纪构造演化可能是导致诸广南铀矿聚集区形成的重要因素之一。

     

  • 图  1  诸广南铀矿聚集区地质简图[3]

    Figure  1.  Geological sketch of uranium ore-concentrated district of southern Zhuguang [3]

    图  2  诸广地区岩浆活动年龄直方图

    Figure  2.  Histogram of magmatic diagenetic ages in Zhuguang area

    图  3  诸广地区花岗岩U-Th散点图(数据引自文献[11])(data from [15])

    Figure  3.  U-Th diagram of granites in Zhuguang area (data from[15])

    图  4  诸广地区铀矿床成矿年龄直方图

    Figure  4.  Histogram of uranium mineralize ages in Zhuguang area

    图  5  岩浆活动、构造运动与铀矿化对比[11]

    Figure  5.  Comparison of ages for magmatic, tectonic and uranium mineralization events[11]

    表  1  诸广地区铀矿床成矿年龄

    Table  1.   Mineralization ages of uranium deposits in Zhuguang area

    矿田 矿床、矿点 测试方法 成矿年龄/Ma 来源
    全安 234 ID-TIMS 76 [11]
    238西段 ID-TIMS 78、83、100 [11]
    238东段 ID-TIMS 75 [11]
    长江 363 ID-TIMS 78、75 [11]
    362 ID-TIMS 84、89 [11]
    333 ID-TIMS 76、78 [11]
    棉花坑 LA-ICP-MS 60.0±0.5、59.5±1.0 [5]
    书楼丘 LA-ICP-MS 71.4±1.3 [5]
    长排 LA-ICP-MS 70.2±0.5 [5]
    240 ID-TIMS 76、85 [11]
    城口 2401 ID-TIMS 47、51 [11]
    2405 ID-TIMS 76、85 [11]
    百顺 361 ID-TIMS 86 [15]
    363 ID-TIMS 80 [11]
    231 ID-TIMS 75 [11]
    233 ID-TIMS 73 [11]
    235 ID-TIMS 82 [11]
    澜河 201 SIMS 73.3±4.7 [16]
    367 ID-TIMS 88 [11]
    鹿井 322 ID-TIMS 95 [15]
    324 ID-TIMS 90 [15]
    325 ID-TIMS 87 [15]
    下载: 导出CSV
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