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    广西苗儿山铀矿田张家铀矿床成矿时代:沥青铀矿微区原位测定

    郭春影 秦明宽 徐浩 任忠宝 邹明亮 白芸 赵宇霆

    郭春影, 秦明宽, 徐浩, 任忠宝, 邹明亮, 白芸, 赵宇霆, 2020. 广西苗儿山铀矿田张家铀矿床成矿时代:沥青铀矿微区原位测定. 地球科学, 45(1): 72-89. doi: 10.3799/dqkx.2018.227
    引用本文: 郭春影, 秦明宽, 徐浩, 任忠宝, 邹明亮, 白芸, 赵宇霆, 2020. 广西苗儿山铀矿田张家铀矿床成矿时代:沥青铀矿微区原位测定. 地球科学, 45(1): 72-89. doi: 10.3799/dqkx.2018.227
    Guo Chunying, Qin Mingkuan, Xu Hao, Ren Zhongbao, Zou Mingliang, Bai Yun, Zhao Yuting, 2020. Age of Zhangjia Uranium Deposit in the Miaoershan Ore Field, Guangxi Autonomous Region, China: In Situ Micro-Determination on Pitchblende. Earth Science, 45(1): 72-89. doi: 10.3799/dqkx.2018.227
    Citation: Guo Chunying, Qin Mingkuan, Xu Hao, Ren Zhongbao, Zou Mingliang, Bai Yun, Zhao Yuting, 2020. Age of Zhangjia Uranium Deposit in the Miaoershan Ore Field, Guangxi Autonomous Region, China: In Situ Micro-Determination on Pitchblende. Earth Science, 45(1): 72-89. doi: 10.3799/dqkx.2018.227

    广西苗儿山铀矿田张家铀矿床成矿时代:沥青铀矿微区原位测定

    doi: 10.3799/dqkx.2018.227
    基金项目: 

    “十三五”国防预先研究项目 3210402

    国家自然科学基金项目 41502097

    国家自然科学基金项目 41702102

    详细信息
      作者简介:

      郭春影(1982-), 男, 高级工程师, 博士, 主要从事区域成矿学与成矿预测研究

    • 中图分类号: P612;P619.14

    Age of Zhangjia Uranium Deposit in the Miaoershan Ore Field, Guangxi Autonomous Region, China: In Situ Micro-Determination on Pitchblende

    • 摘要: 张家铀矿床是苗儿山铀矿田北部的代表性铀矿床之一,对其开展详细的成矿年代学研究不仅对认识区域铀成矿规律十分重要,也对探讨华南花岗岩型热液铀矿床的成矿大地构造背景及动力学机制具有重要意义.在详细的镜下观察基础上,采用电子探针U-Th-Pb化学法、LA-ICP-MS U-Pb同位素方法对脉状沥青铀矿进行了年代学研究.20个点的U-Th-Pb化学年龄为55.3~81.1 Ma,其中19个点的加权平均年龄为71.4±1.9 Ma.根据稀土元素特征的不同,将34个点的LA-ICP-MS U-Pb同位素年龄分为2组,第一组共15个点,其中13个点的206Pb/238U加权平均年龄为69.4±4.9 Ma;第二组共19个,其中16个点的206Pb/238U加权平均年龄为94.1±3.0 Ma.电子探针U-Th-Pb化学法加权平均年龄(71.4±1.9 Ma)与LA-ICP-MS U-Pb同位素法较年轻的一组206Pb/238U加权平均年龄(69.4±4.9 Ma)一致,代表张家铀矿床的成矿时代,LA-ICP-MS U-Pb同位素法较老的一组206Pb/238U加权平均年龄(94.1±3.0 Ma)可能是沥青铀矿受后期改造和/或样品剥蚀过程杂质矿物影响而地质意义不明确.晚中生代期间,古太平洋板块向欧亚大陆俯冲可能是控制华南大规模花岗岩型铀矿床形成的动力学机制,包括张家铀矿床在内的华南花岗岩型铀矿床大规模成矿作用可能受80~50 Ma古太平洋板块对亚洲东部的斜向俯冲动力体制的控制.

       

    • 图  1  华南大地构造格架示意

      图a据Gao et al.(2017)修改;图b据1:6 000万中国地图,审图号:GS(2019)1651号

      Fig.  1.  Schematic map of tectonic framework of the South China Block

      图  2  苗儿山地区地质简图及铀矿床分布

      1.新元古界;2.古生界;3.白垩系;4.加里东期花岗岩;5.印支期香草坪岩体;6.印支期豆乍山、张家岩体;7.燕山期岩体;8.断层;9.不整合界面;10.铀矿床及名称;11.城镇;12.岩体名称

      Fig.  2.  Schematic geological map and distribution of uranium deposits of the Miao'ershan area

      图  3  张家铀矿床地质简图

      a.张家铀矿平面地质图;b.张家铀矿Ⅰ剖面地质图

      Fig.  3.  Geological map of the Zhangjia uranium deposit

      图  4  铀矿石特征及矿物组成显微照片

      a.铀矿石手标本照片;b.萤石-黄铁矿-沥青铀矿脉(扫描电镜照片);c.萤石-黄铁矿-沥青铀矿脉(反光镜下照片);d.萤石-黄铁矿-沥青铀矿脉(反光镜下照片);

      Fig.  4.  Handspeciman and microscopic characters of uranium ores

      图  5  张家铀矿床沥青铀矿EPMA U-Th-Pb化学年龄加权平均图

      Fig.  5.  Weighted EPMA U-Th-Pb chemical ages of pitchblende of the Zhangjia uranium deposit

      图  6  张家铀矿床沥青铀矿ΣREE-(ΣLREE/ΣHREE)N图解

      底图据Mercadier et al.(2011)

      Fig.  6.  ΣREE vs. (ΣLREE/ΣHREE)N diagram of pitchblende from the Zhangjia uranium deposit

      图  7  张家铀矿床沥青铀矿稀土元素配分模式与不同类型铀矿床稀土配分模式对比

      不同成因类型铀矿床沥青铀矿稀土配分模式据Mercadier et al.(2011);球粒陨石标准化数据参考Anders and Grevesse(1989)

      Fig.  7.  Comparison of pitchblende REE modes between the Zhangjia uranium deposit and global uranium deposits

      图  8  张家铀矿床沥青铀矿LA-ICP-MS U-Pb同位素年龄

      a.部分绿色数据点加权平均;b.紫色数据点加权平均

      Fig.  8.  Diagrams showing the LA-ICP-MS U-Pb isotopic ages of pitchblende from the Zhangjia uranium deposit

      图  9  华南花岗岩型铀矿床成矿年龄统计直方图

      数据源自表 4

      Fig.  9.  Diagram showing the age distribution of uranum deposits in granitoids of South China Block

      表  1  张家铀矿床沥青铀矿电子探针成分(%)及U-Th-Pb年龄(Ma)

      Table  1.   Electron probe micro-analytic compositions (%) coresponding U-Th-Pb ages (Ma) of pitchblende from the Zhangjia uranium deposit

      No. Na2O SiO2 UO2 K2O Al2O3 MgO PbO CaO Y2O3 ThO2 P2O5 TiO2 Yb2O3 FeO MnO Total 年龄
      1 0.23 1.45 87.84 0.03 0.10 - 0.84 4.89 - - 0.04 - 0.01 - 0.01 95.44 72.2±3.0
      2 0.19 1.39 88.97 0.07 0.11 - 0.80 4.71 - - - - 0.11 0.15 0.02 96.52 67.9±3.4
      3 0.14 1.23 89.37 0.06 0.11 0.05 0.87 5.15 - - - 0.02 - 0.07 - 97.07 73.5±3.7
      4 0.15 1.43 88.95 0.1 0.13 0.01 0.77 4.66 - - - 0.07 0.21 0.06 0.10 96.64 65.4±3.3
      5 0.36 1.36 87.63 0.06 0.10 - 0.81 5.09 - - - - - - 0.14 95.55 69.8±3.5
      6 0.15 1.26 88.31 0.06 0.04 0.01 0.81 4.66 - - 0.01 - - - 0.05 95.36 69.3±3.5
      7 0.11 1.34 88.91 0.06 0.07 - 0.86 5.05 - - - - 0.21 0.08 0.12 96.81 73.0±3.7
      8 0.13 1.43 88.20 0.03 0.12 0.02 0.88 4.80 - - - - - 0.06 0.05 95.72 75.3±3.8
      9 0.18 1.30 87.66 0.04 0.06 - 0.79 5.17 0.01 - 0.03 - - 0.10 0.11 95.45 68.0±3.4
      10 0.13 1.58 87.77 0.09 0.15 0.05 0.79 4.92 - - - 0.06 - 0.05 0.06 95.65 68.0±3.4
      11 0.18 1.35 88.64 0.08 0.08 0.01 0.89 4.67 - - - 0.15 0.23 0.08 0.10 96.46 75.8±3.8
      12 0.14 1.37 89.52 0.07 0.14 0.02 0.81 4.52 - 0.01 0.04 - 0.03 0.11 0.10 96.88 68.3±3.4
      13 0.09 1.20 88.42 0.09 0.12 - 0.95 5.00 - - 0.02 - - 0.01 0.04 95.94 81.1±4.1
      14 0.13 1.18 88.85 0.05 0.09 - 0.80 5.11 - - 0.06 0.09 0.10 0.05 0.03 96.54 68.0±3.4
      15 0.17 1.20 89.60 0.06 0.06 0.02 0.87 5.17 - - 0.06 - 0.27 - - 97.48 73.3±3.7
      16 0.15 1.08 88.83 0.04 0.10 0.01 0.84 5.08 - - 0.10 - - - - 96.23 71.4±3.6
      17 0.24 1.25 88.74 0.08 0.07 0.01 0.65 4.48 - - 0.05 0.01 - 0.02 0.05 95.65 55.3±2.8
      18 0.24 1.02 89.06 0.07 0.02 - 0.87 5.04 - - 0.07 - - 0.10 0.04 96.53 73.8±3.7
      19 0.16 1.19 87.36 0.11 0.10 - 0.92 5.32 - - 0.03 0.05 0.03 0.16 0.01 95.44 79.5±4.0
      20 0.18 1.16 88.93 0.07 0.09 - 0.84 5.12 - - 0.04 - - - 0.09 96.52 71.3±3.6
      注:“-”表示低于检测线;U-Th-Pb年龄计算方法依据Ranchin(1968),年龄误差估算方法依据Bowles(1990).
      下载: 导出CSV

      表  2  沥青铀矿LA-ICP-MS稀土元素组成(μg/g)

      Table  2.   Rare Earth Element compositons of pitchblende detected by LA-ICP-MS

      点号 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ΣREE (LREE/HREE)N
      1 14.8 15.8 1.68 8.73 1.43 0.093 4.19 0.43 3.65 0.65 1.61 0.13 1.33 0.11 54.57 1.35
      2 120 449 58.0 201 33.9 1.40 23.6 3.18 14.2 2.48 7.09 1.08 6.90 0.78 921.91 4.76
      3 10.6 10.1 1.16 5.01 2.36 0.24 1.57 0.13 1.76 0.28 0.86 0.054 0.42 0.024 34.52 2.63
      4 13.5 24.3 2.67 9.41 3.54 0.98 - 0.70 4.61 0.23 0.65 0.12 1.01 0.034 61.72 2.79
      5 87.7 397 36.1 130 19.3 0.48 22.3 1.14 2.70 - 3.52 0.12 0.16 - 700.43 8.99
      6 21.7 31.8 1.65 9.66 3.93 - 1.62 0.80 2.38 2.40 1.11 0.29 2.24 0.56 80.15 1.29
      7 13.7 16.7 2.02 11.6 - - 3.99 0.29 - 0.86 - 0.15 0.72 - 49.96 2.14
      8 25.6 15.6 2.40 2.06 2.01 0.64 16.6 0.80 3.14 0.26 2.20 - 4.58 0.25 76.10 0.94
      9 35.0 63.9 7.03 31.3 7.62 0.47 8.11 1.08 8.11 2.14 4.50 0.38 3.27 0.50 173.34 1.75
      10 86.2 401 52.9 152 36.0 1.33 26.5 0.88 15.1 0.94 3.06 0.66 4.50 0.82 781.89 5.61
      11 18.1 47.3 4.34 14.5 6.74 - 4.05 1.40 4.09 0.51 1.96 0.42 2.20 0.59 106.13 1.59
      12 18.7 24.6 2.04 13.0 5.86 0.81 4.25 1.16 - 0.031 - - 2.15 0.36 72.93 2.40
      13 20.3 26.6 3.95 9.25 - 0.96 1.68 0.77 2.16 0.088 1.27 - 0.66 0.43 68.08 2.60
      14 24.6 30.0 2.33 14.1 4.63 0.96 9.13 0.089 0.096 0.91 0.84 - - 0.14 87.86 3.00
      15 694 2 910 402 1 498 253 11.6 116 18.5 98.4 19.4 46.7 7.19 44.8 5.52 6 125.32 5.14
      16 209 819 105 375 70.9 3.36 34.6 5.53 26.3 5.07 13.0 1.77 11.4 1.29 1 681.37 5.16
      17 59.2 191 22.7 82.5 18.2 1.22 13.8 2.33 11.8 1.99 5.70 0.87 4.70 0.42 416.71 2.96
      18 352 1 558 211 760 136 4.94 65.7 9.62 56.0 8.78 25.0 3.45 28.4 2.97 3 222.88 4.99
      19 18.3 27.3 4.48 18.1 5.48 0.23 5.37 0.78 5.54 0.99 2.68 0.26 1.80 0.17 91.57 1.64
      20 73.8 275 40.5 144 29.1 1.87 17.3 2.98 18.4 2.76 8.50 1.38 7.04 1.06 623.11 3.11
      21 384 1 633 216 772 131 5.97 66.3 10.7 61.1 11.3 27.8 4.61 27.7 3.00 3 354.58 4.69
      22 725 3 587 461 1 636 280 13.8 114 18.0 89.4 16.0 42.1 6.48 43.5 4.91 7 035.77 6.33
      23 817 3 870 489 1 773 294 11.2 127 19.5 109 17.4 46.1 5.44 51.5 4.90 7 634.29 6.25
      24 536 2 475 321 1 163 184 8.39 87.0 12.3 64.4 11.8 30.5 5.20 33.3 3.16 4 934.80 6.04
      25 160 736 88.6 321 54.8 3.33 29.7 4.64 22.7 4.34 12.2 1.37 8.18 1.50 1 447.77 5.03
      26 303 1 262 153 553 82.2 3.43 44.3 6.28 29.5 5.09 15.5 2.38 14.6 1.83 2 476.71 6.18
      27 1 187 5 537 725 2 661 413 14.8 217 28.8 148 27.1 68.2 10.2 59.6 7.60 11 104.04 6.01
      28 97.9 463 55.7 206 36.1 1.00 20.3 3.11 12.8 2.53 4.16 1.33 6.52 0.86 911.31 4.93
      29 24.0 28.1 2.97 15.3 4.86 0.34 9.05 0.76 3.13 1.11 1.40 0.75 1.92 0.25 93.93 1.37
      30 43.9 42.2 4.10 12.6 1.94 0.40 2.74 0.42 3.32 1.15 1.34 0.68 0.99 - 115.79 2.92
      31 19.4 30.7 3.18 9.57 3.33 1.11 5.14 0.34 3.39 0.49 1.53 0.15 1.60 0.17 80.02 2.22
      32 22.1 31.3 4.52 17.0 4.46 - 4.53 0.56 3.15 1.53 2.36 0.009 0.58 0.067 92.18 2.29
      33 606 2 751 325 1 280 207 9.12 80.9 15.6 85.6 11.7 26.5 6.43 27.8 3.98 5 437.39 6.06
      34 65.4 245 27.9 90.5 21.2 0.81 12.1 2.48 8.25 1.87 5.21 0.81 7.90 0.55 490.30 3.49
      注:“-”表示低于检测线.
      下载: 导出CSV

      表  3  张家铀矿床沥青铀矿LA-ICP-MS U-Pb同位素组成及年龄

      Table  3.   LA-ICP-MS U-Pb isotopic compositions and ages of pitchblende from the Zhangjia uranium deposit

      样点 UO2 (%) Th (μg/g) Pb (μg/g) 同位素比值及误差 年龄及误差(Ma)
      207Pb/ 206Pb 1σ 207Pb/ 235U 1σ 206Pb/ 238U 1σ 207Pb/ 206Pb 1σ 207Pb/ 235U 1σ 206Pb/ 238U 1σ
      1 91.2 0.078 14 444 0.051 6 0.000 8 0.099 5 0.001 5 0.014 0 0.000 2 333.4 33.3 96.3 1.4 89.7 1.1
      2 90.9 0.001 8 13 606 0.050 1 0.000 8 0.091 1 0.001 3 0.013 3 0.000 2 198.2 33.3 88.6 1.2 85.0 1.0
      3 89.7 - 15 277 0.051 4 0.000 7 0.105 6 0.001 6 0.014 9 0.000 2 257.5 33.3 102.0 1.5 95.4 1.2
      4 92.2 0.42 16 199 0.049 7 0.001 6 0.105 3 0.003 6 0.015 8 0.000 4 189.0 75.9 101.7 3.3 101.0 2.7
      5 92.3 - 15 806 0.052 5 0.001 7 0.109 5 0.003 8 0.015 6 0.000 4 309.3 78.7 105.5 3.5 100.0 2.6
      6 92.9 0.26 14 756 0.051 7 0.001 8 0.099 7 0.003 6 0.014 3 0.000 4 272.3 77.8 96.5 3.3 91.7 2.4
      7 91.9 - 16 781 0.053 3 0.001 8 0.119 5 0.003 9 0.016 8 0.000 4 231.6 79.6 103.6 4.0 100.3 3.0
      8 92.1 0.73 16 294 0.050 8 0.001 8 0.107 5 0.004 3 0.015 7 0.000 5 233.4 27.8 94.6 1.3 89.4 1.0
      9 91.8 - 14 300 0.050 7 0.000 6 0.097 7 0.001 4 0.014 0 0.000 2 5.7 72.2 89.5 2.4 94.1 2.0
      10 92.5 0.86 15 357 0.046 2 0.001 2 0.092 1 0.002 6 0.014 7 0.000 3 150.1 59.3 99.3 2.6 98.1 1.8
      11 87.7 0.20 14 993 0.049 0 0.001 2 0.102 7 0.002 8 0.015 3 0.000 3 264.9 58.3 99.2 2.7 93.6 1.7
      12 92.1 - 16 514 0.053 0 0.001 4 0.113 4 0.003 7 0.015 6 0.000 4 320.4 33.3 76.0 1.1 68.7 1.0
      13 91.0 - 15 126 0.051 6 0.001 4 0.102 7 0.002 9 0.014 6 0.000 3 239.0 33.3 82.2 1.3 76.5 0.8
      14 92.2 0.015 16 166 0.054 9 0.001 4 0.114 9 0.003 4 0.015 3 0.000 3 235.3 61.1 89.2 1.3 84.0 1.0
      15 91.4 0.42 11 186 0.052 8 0.000 7 0.077 7 0.001 2 0.010 7 0.000 2 283.4 33.3 74.5 1.2 68.0 0.9
      16 90.9 0.068 12 759 0.051 0 0.000 7 0.084 3 0.001 4 0.011 9 0.000 1 233.4 35.2 93.5 1.4 88.8 1.3
      17 91.0 0.030 14 053 0.050 9 0.000 8 0.091 8 0.001 4 0.013 1 0.000 2 257.5 33.3 88.5 1.3 82.6 1.1
      18 89.3 0.68 11 407 0.052 0 0.000 8 0.076 1 0.001 2 0.010 6 0.000 1 300.1 29.6 78.5 1.0 71.8 0.8
      19 88.2 0.019 14 609 0.050 7 0.000 8 0.096 4 0.001 5 0.013 9 0.000 2 161.2 51.8 64.6 1.7 61.7 0.9
      20 90.4 0.020 14 106 0.051 4 0.000 7 0.091 1 0.001 4 0.012 9 0.000 2 264.9 50.9 64.1 1.4 58.9 0.9
      21 90.6 0.20 12 135 0.052 1 0.000 7 0.080 4 0.001 1 0.011 2 0.000 1 327.8 38.9 69.0 1.6 61.8 1.1
      22 92.7 0.20 10 927 0.049 3 0.001 1 0.065 7 0.001 8 0.009 6 0.000 1 231.6 71.3 84.6 1.7 79.4 1.2
      23 91.4 - 10 288 0.051 6 0.001 0 0.065 2 0.001 5 0.009 2 0.000 1 300.1 37.0 79.3 1.3 72.7 1.0
      24 90.0 0.13 10 362 0.053 0 0.000 9 0.070 3 0.001 6 0.009 6 0.000 2 301.9 55.6 51.6 2.0 46.1 1.5
      25 89.8 0.44 12 832 0.050 8 0.000 9 0.086 9 0.001 8 0.012 4 0.000 2 344.5 47.2 103.6 1.9 94.5 1.5
      26 89.8 0.14 11 453 0.052 2 0.000 9 0.081 2 0.001 4 0.011 3 0.000 2 209.3 42.6 103.0 1.9 99.1 1.3
      27 92.8 0.055 8 511 0.052 4 0.001 2 0.052 1 0.002 1 0.007 2 0.000 2 183.4 15.7 91.5 2.1 88.5 1.5
      28 92.1 - 14 832 0.053 2 0.001 0 0.107 4 0.002 0 0.014 8 0.000 2 231.6 44.4 104.1 2.1 98.9 1.5
      29 92.6 0.38 15 346 0.050 3 0.001 0 0.106 8 0.002 0 0.015 5 0.000 2 166.8 44.4 79.7 1.5 77.5 1.2
      30 93.3 0.039 13 886 0.049 8 0.001 0 0.094 3 0.002 2 0.013 8 0.000 2 324.1 42.6 108.2 1.9 99.4 1.5
      31 89.9 0.059 18 251 0.048 6 0.001 1 0.126 5 0.005 8 0.018 4 0.000 5 333.4 33.3 96.3 1.4 89.7 1.1
      32 89.7 - 14 855 0.050 8 0.001 0 0.108 0 0.002 3 0.015 5 0.000 2 198.2 33.3 88.6 1.2 85.0 1.0
      33 90.0 0.14 11 378 0.049 2 0.000 9 0.081 6 0.001 6 0.012 1 0.000 2 257.5 33.3 102.0 1.5 95.4 1.2
      34 90.6 0.072 14 943 0.052 9 0.001 0 0.112 5 0.002 1 0.015 5 0.000 2 189.0 75.9 101.7 3.3 101.0 2.7
      注:“-”表示低于检测线.
      下载: 导出CSV

      表  4  近年来华南花岗岩型铀矿床沥青铀矿微区原位测年结果

      Table  4.   A summary of recently avalible insitu pitchblende ages of uranium deposits in South China Block

      矿田 矿床 年龄(Ma) 测试对象 测试方法 资料来源
      苗儿山 张家 71.4±1.9 沥青铀矿 EPMA U-Th-Pb 本文
      69.4±4.9 沥青铀矿 LA-ICP-MS U-Pb 本文
      沙子江 97.5±4.0 沥青铀矿 EPMA U-Th-Pb Luo et al., 2015b
      70.2±1.6 沥青铀矿 EPMA U-Th-Pb Luo et al., 2015b
      72.4±4.4 沥青铀矿 LA-ICP-MS U-Pb 笔者未发表数据
      75.0±1.9 沥青铀矿 LA-ICP-MS U-Pb 笔者未发表数据
      孟公界 1.9±0.7 沥青铀矿 SIMS U-Pb Luo et al., 2017
      2.3±0.1 沥青铀矿 EPMA U-Th-Pb Luo et al., 2017
      诸广南 棉花坑 80±9 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      65±5 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      81±2 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      74±1 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      62±1 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      澜河 67.8±0.9 沥青铀矿 EPMA U-Th-Pb 葛祥坤, 2013
      73.3±4.7 沥青铀矿 SIMS U-Pb 骆金诚, 2015
      66.5±2.0 沥青铀矿 EPMA U-Th-Pb 骆金诚, 2015
      下庄 石土岭 134±2 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      127±2 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      希望 72±2 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      66±1 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      62±1 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      仙石 52±2 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      41±1 沥青铀矿 SIMS U-Pb Bonnetti et al., 2017
      135±4 沥青铀矿 SIMS U-Pb Luo et al., 2015a
      113±2 沥青铀矿 SIMS U-Pb Luo et al., 2015a
      104±2 沥青铀矿 SIMS U-Pb Luo et al., 2015a
      下载: 导出CSV
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    • 收稿日期:  2018-06-29
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