Characteristics and genesis of uranium mineralized lenses and its implications for deep−source uranium metallogenesis in Datian area of Panzhihua, Sichuan Province
-
摘要:
研究目的 近期在四川省攀枝花大田地区发现了呈雁列式展布铀矿化透镜体群，无论是在铀矿化特征上还是在成因上均极为特殊，具有重要的研究价值。
研究方法 通过对铀矿化透镜体开展岩石学、矿物学、岩石地球化学、同位素地质学及年代学、铀赋存状态及铀矿化与透镜体之间的成因联系等研究。
研究结果 铀矿化透镜体基本由斜长石组成并发生了强烈钠黝帘石化，具有岩浆岩常见的镶嵌结构，形成年龄为821 Ma（SIMS锆石U–Pb）。化学组成上具有富Na2O（含量3.95%~5.68%，平均为5.09%）、CaO（含量4.40%~7.35%，平均为5.46%），贫SiO2（含量51.52%~55.09%，平均为53.34%）的特征。微量元素分析结果显示铀矿化透镜体具有极低的ΣREE含量（含量9.96×10−6~33.63×10−6，平均为22.03×10−6），特殊的铕正异常（δEu=1.59~5.51，平均为2.68）稀土配分模式。ISr值介于0.7060~0.7088，平均为0.7074，具有地幔来源特征。透镜体中铀主要呈独特的“铀钛矿物聚集体”形式存在，主要由“金红石+铀钛混合物+钛铀矿+晶质铀矿+锆石”等矿物组成，且上述矿物具有由“金红石（Ti）→铀钛混合物（Ti>U）→钛铀矿（Ti<U）→晶质铀矿（U）”的演化特征。
结论 根据铀矿物与透镜体的关系及铀矿物稀土元素示踪等综合判断，铀矿化具有岩浆成因属性，推测在深部高温（>700℃）高压（>15 kbar）的环境中，U与Ti具有极强的亲和性，形成以NaU4+(Ti4+)[TiO4]4+(F,Cl)为主要形式的络合物，并在熔体中向富钠的部位迁移、富集。铀与透镜体具有同源、同成因特征，而“铀钛矿物聚集体”是在等压降温过程中因温度降低从浆状体中分离出来所形成。攀枝花大田地区铀矿化透镜体的发现提供了深源铀成矿的地质实例，为探讨深源铀成矿提供了参考。
Abstract:This paper is the result of mineral exploration engineering.
Objective A very special and echelon arrangement uranium mineralized lenses group were found in the Datian area of Panzhihua, Sichuan Province, with important research value.
Methods Through the comprehensive studies, including petrology, mineralogy petrochemistry, isotope geology and chronology, uranium occurrence state the genetic relationship between uranium mineralization and lenses.
Results The lenses mainly consist of plagioclase with strongly sodium zoisitization, and have typical magmatic mosaic texture, with age of 821 Ma (SIMS zircon U–Pb age). They have the chemical composition characterices of high Na2O (3.95%–5.68%, average 5.09%), CaO (4.40%–7.35%, average 5.46%), low SiO2 (51.52%–55.09%, average 53.34%). The analysis of trace element show that lenses have very low ΣREE content (9.96×10−6–33.63×10−6, average 22.03×10−6), positive Eu anomalies (δEu=1.59–5.51, average 2.68) and special REE distribution pattems. The results of ISr (0.7060–0.7088, average 0.7074) indicate that the raw material of lenses coming from the mantle. The mainly uranium occurrence state in lenses is the unique "U–Ti minerals aggregates". The "U–Ti minerals aggregates" are mainly composed of rutile, uranium–titanium mixture, brannerite and uranium, and the minerals in "U–Ti minerals aggregates" have the evolutionary characteristics of "rutile (Ti)→uranium–titanium mixture (Ti>U)→brannerite (Ti<U) → uranium(U)".
Conclusions According to the relationship between uranium minerals and lenses, and the REE tracer method of uranium minerals, it is confirmed that the uranium mineralization genesis is relation to magmatism. It is speculated that the NaU4+(Ti4+)[TiO4]4+(F,Cl) is mainly complex in the deep environment with high temperature (>700 °C) and high pressure (>15 kbar), and it can move and concentrate in the sodium–rich site in the lenses. The U and raw material of lenses originate from same magma, and the "U–Ti minerals aggregates" are separated from magma body in the process of isobaric cooling. The discovery of uranium mineralized lenses in Datian area of Panzhihua provides the direct geological case that uranium can be enriched in the mantle, and this discovery provides a reference for the discussion of deep-source uranium metallogenesis.
-
-
图 6 铀矿化透镜体稀土配分模式（球粒陨石标准化据Boynton, 1984）
Figure 6.
图 13 铀矿化透镜体中铀矿物稀土配分形式（据Boynton, 1984）
Figure 13.
表 1 变质围岩（DT-2）SIMS锆石U–Pb同位素年龄测试结果
Table 1. SIMS zircon U–Pb isotope dating of metamorphic wall rock (DT-2)
测点号 含量/10−6 Th/U 同位素比值 年龄/Ma U Th Pb 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 1 113 84 18 0.74 0.065339 0.0136 1.114168 0.0261 0.123673 0.0222 785 28 760 14 752 16 2 114 89 18 0.78 0.063662 0.0122 1.098217 0.0227 0.125115 0.0192 730 26 753 12 760 14 3 421 51 55 0.12 0.064595 0.0062 1.046947 0.0194 0.117550 0.0184 761 13 727 10 716 13 4 216 244 38 1.13 0.064603 0.0087 1.094873 0.0213 0.122916 0.0194 761 18 751 11 747 14 5 140 148 23 1.06 0.065125 0.0117 1.056525 0.0222 0.117661 0.0189 778 25 732 11 717 13 6 126 136 21 1.08 0.064630 0.0143 1.061736 0.0248 0.119146 0.0203 762 30 735 13 726 14 7 171 101 26 0.59 0.064952 0.0096 1.069895 0.0213 0.119468 0.0190 773 20 739 11 728 13 8 413 698 80 1.69 0.064392 0.0074 1.078229 0.0230 0.121445 0.0218 755 16 743 12 739 15 9 246 69 34 0.28 0.063904 0.0093 1.064494 0.0212 0.120812 0.0190 739 20 736 11 735 13 10 77 58 12 0.75 0.064779 0.0180 1.111879 0.0276 0.124486 0.0210 767 38 759 15 756 15 11 175 163 30 0.93 0.064332 0.0120 1.147164 0.0228 0.129330 0.0194 753 25 776 13 784 14 12 275 33 38 0.12 0.062906 0.0110 1.102831 0.0228 0.127151 0.0199 705 23 755 12 772 15 13 81 53 13 0.66 0.064076 0.0191 1.174118 0.0292 0.132897 0.0220 744 40 789 16 804 17 14 176 185 30 1.05 0.064081 0.0161 1.092138 0.0253 0.123607 0.0195 744 34 750 14 751 14 
下载: 导出CSV
表 2 含铀透镜体（DT-1）SIMS锆石U–Pb同位素年龄测试结果
Table 2. SIMS zircon U–Pb isotope dating of uranium lenses (DT-1)
测点号 含量/10-6 Th/U 同位素比值 年龄/Ma U Th Pb 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 1 7468 194 1098 0.02 0.066739 0.0050 1.260030 0.0165 0.136931 0.0158 830 11 828 9 827 12 2 11085 424 1565 0.02 0.066813 0.0052 1.175352 0.0184 0.132110 0.0170 759 15 789 10 800 13 3 5936 280 807 0.02 0.066545 0.0091 1.161059 0.0204 0.126543 0.0183 824 19 783 11 768 13 4 10563 201 1208 0.02 0.064645 0.0053 0.952047 0.0165 0.106812 0.0157 763 11 679 8 654 10 5 11915 588 1589 0.05 0.066978 0.0048 1.045212 0.0230 0.124259 0.0175 640 32 727 12 755 13 6 7022 435 1251 0.02 0.065922 0.0045 1.470425 0.0191 0.166935 0.0177 738 15 918 12 995 16 7 9023 282 1318 0.03 0.066118 0.0046 1.238432 0.0191 0.135847 0.0185 810 10 818 11 821 14 8 4296 221 632 0.03 0.066666 0.0076 1.258076 0.0231 0.136867 0.0218 827 16 827 13 827 17 9 7172 321 906 0.03 0.064872 0.0055 1.051022 0.0171 0.117503 0.0161 770 12 729 9 716 11 10 9526 285 1437 0.03 0.067618 0.0047 1.306453 0.0176 0.140129 0.0170 857 10 849 10 845 13 11 14551 671 1804 0.04 0.064903 0.0041 1.029129 0.0174 0.115001 0.0169 771 9 719 9 702 11 12 10942 650 1524 0.04 0.064745 0.0050 1.153306 0.0192 0.129193 0.0186 766 10 779 11 783 14 13 7586 536 1019 0.03 0.067980 0.0075 1.167487 0.0182 0.124558 0.0166 868 16 786 10 757 12 14 4973 120 721 0.01 0.066782 0.0088 1.247161 0.0188 0.135445 0.0166 831 18 822 11 819 13 15 7330 173 1063 0.02 0.065960 0.0051 1.228928 0.0167 0.135128 0.0159 805 11 814 9 817 12 16 9848 415 1428 0.04 0.066487 0.0044 1.232158 0.0168 0.134409 0.0163 822 9 815 10 813 12 17 10789 308 1374 0.03 0.065839 0.0046 1.076043 0.0247 0.118534 0.0242 801 10 742 13 722 17 18 9709 343 1480 0.04 0.066197 0.0062 1.291939 0.0182 0.141547 0.0171 813 13 842 11 853 14 19 10200 300 1283 0.03 0.066075 0.0069 1.065958 0.0171 0.117004 0.0157 809 14 737 9 713 11 20 11418 393 1602 0.03 0.065553 0.0042 1.179198 0.0178 0.130465 0.0173 792 9 791 10 791 13 21 14826 660 1860 0.04 0.065330 0.0054 1.046611 0.0474 0.116190 0.0471 785 11 727 25 709 32 22 9061 178 1294 0.02 0.066242 0.0058 1.216146 0.0177 0.133154 0.0167 814 12 808 10 806 13 23 5970 425 792 0.02 0.065109 0.0060 1.111381 0.0167 0.123800 0.0156 778 13 759 9 752 11
下载: 导出CSV
表 3 铀矿化透镜体中铀矿物LA–ICP–MS分析测试结果
Table 3. LA–ICP–MS uranium minerals U–Pb isotope dating in uranium mineralized lenses
测点号 含量/10-6 Th/U 同位素比值 年龄/Ma Pb Th U 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 207Pb/206Pb ±σ 207Pb/235U ±σ 206Pb/238U ±σ 1 107121 37396 355430 0.11 0.0702 0.0007 1.4690 0.0217 0.1522 0.0021 1000 16 918 9 914 12 2 101757 25535 370757 0.07 0.0687 0.0006 1.4180 0.0179 0.1495 0.0020 900 17 897 8 898 11 3 96551 16004 418428 0.04 0.0677 0.0009 1.4230 0.0244 0.1482 0.0026 859 28 899 10 891 15 4 107833 22899 375017 0.06 0.0693 0.0005 1.4090 0.0240 0.1473 0.0025 906 12 893 10 886 14 5 108231 30893 357977 0.09 0.0680 0.0009 1.3955 0.0171 0.1459 0.0017 878 26 887 7 878 10 6 105995 18317 359693 0.05 0.0656 0.0013 1.4315 0.0281 0.1492 0.0028 792 41 902 12 896 16 7 95977 17063 392995 0.04 0.0690 0.0005 1.3956 0.0244 0.1469 0.0027 898 19 887 10 884 15 8 93035 26014 410504 0.06 0.0686 0.0005 1.3911 0.0168 0.1468 0.0017 887 17 885 7 883 9 9 92078 33643 406029 0.08 0.0692 0.0006 1.4034 0.0157 0.1468 0.0015 906 18 890 7 883 9 10 94893 30854 415944 0.07 0.0694 0.0006 1.3910 0.0217 0.1450 0.0021 911 19 885 9 873 12
下载: 导出CSV
表 9 透镜体中铀矿物稀土元素分析结果（10−6）
Table 9. Rare earth element compositions (10−6) of uranium minerals in lenses
序号 1 2 3 4 5 6 7 8 9 10 平均 La 371.72 500.34 423.74 406.09 458.40 665.50 700.97 348.26 316.64 318.42 451.008 Ce 3441.81 4221.64 3530.02 3389.01 6542.06 5291.22 5482.48 2865.09 3535.91 3327.44 4162.668 Pr 568.89 617.49 547.99 597.94 908.07 678.84 770.02 462.60 566.36 544.68 626.288 Nd 3029.19 3439.32 2828.33 2818.08 5063.87 3783.62 3903.13 2749.19 3017.51 3272.96 3390.52 Sm 881.44 1120.31 704.59 720.79 1339.27 861.17 844.24 773.24 870.27 974.48 908.98 Eu 74.83 70.36 58.83 58.96 179.19 70.72 70.40 61.34 93.79 68.00 80.642 Gd 966.50 1023.55 755.06 736.90 1573.49 762.47 812.69 841.66 960.32 1018.34 945.098 Tb 161.76 191.74 115.53 128.15 226.64 135.21 125.47 130.65 155.91 165.74 153.68 Dy 1278.82 1119.52 874.02 888.57 1750.00 926.86 871.52 964.92 1227.45 1229.65 1113.133 Ho 241.46 279.24 166.53 176.06 343.05 186.54 164.34 185.24 229.66 232.74 220.486 Er 817.47 843.05 597.44 600.77 1219.04 548.10 560.79 614.05 782.29 783.35 736.635 Tm 88.98 87.91 65.31 70.01 142.85 63.00 64.69 71.37 84.84 88.16 82.712 Yb 649.31 751.15 488.08 485.80 968.48 474.31 436.16 488.16 566.24 601.02 590.871 Lu 57.00 57.06 43.23 47.87 92.17 44.14 42.12 40.53 50.62 56.11 53.085 Y 5916 6385 4115 4622 8801 4389 4307 4632 5971 5845 5498 U 355430 370757 418428 375017 357977 359693 392995 410504 430114 415944 388686 Th 37396 25535 16004 22899 30893 18317 17063 26014 36928 30854 26190 U/Th 9.5 14.5 26.1 16.4 11.6 19.6 23.0 15.8 11.6 13.5 16.2 ΣREE 12629.2 14322.7 11198.7 11125.0 20806.6 14491.7 14849.0 10596.3 12457.8 12681.1 13515.8 LREE/HREE 1.96 2.29 2.61 2.55 2.29 3.61 3.82 2.18 2.07 2.04 2.54
下载: 导出CSV
表 4 金红石成分（%）及其Zr温度计算结果
Table 4. Electron–microprobe analyses of rutiles (%) and the calculation results of Zr–in–rutile
测点 SiO2 UO2 FeO Nd2O3 ThO2 TiO2 Al2O3 CaO MoO3 Nb2O5 PbO Ta2O5 SeO2 SO3 P2O5 ZrO2 Ce2O3 Y2O3 总量 T1 max/℃ T2/℃ 1 0.02 0.11 0.47 0.07 0.00 98.69 0.05 / / 1.70 0.01 0.06 0.02 0.01 0.05 0.06 / 0.05 101.36 769.10 796.17 2 0.04 0.12 0.56 0.03 / 97.23 0.02 0.01 0.02 2.30 / 0.17 / 0.03 0.04 0.08 / 0.06 100.68 805.87 834.92 3 0.01 0.11 1.21 0.03 0.04 99.28 / 0.07 0.13 0.23 0.01 0.02 0.02 / / 0.03 0.11 0.01 101.31 680.52 702.80 4 / 0.03 0.42 0.04 0.01 98.08 0.02 0.02 0.04 1.49 0.05 0.10 / / 0.02 0.06 0.02 0.03 100.43 769.10 796.17 5 0.03 0.18 0.44 / / 99.92 0.04 0.04 0.06 1.04 / 0.08 0.03 0.03 0.03 0.02 / / 101.91 628.70 648.18 6 0.01 0.15 0.52 / 0.03 97.90 0.01 0.01 / 2.06 / 0.24 0.04 0.02 0.03 / 0.03 101.05 680.52 702.80 7 0.04 0.11 0.23 / 0.05 99.42 0.02 0.02 / 1.05 / 0.22 / 0.02 0.03 0.05 / / 101.24 745.80 771.61 8 / 0.11 0.35 0.01 / 99.83 / / / 0.62 0.07 0.02 / / / 0.14 0.02 0.02 101.19 877.39 910.30
下载: 导出CSV
表 5 含铀钛矿物电子探针分析结果（%）
Table 5. Electron–microprobe analyses (%) of Ti–U mixture
测点 F SiO2 UO2 FeO MgO ThO2 TiO2 Al2O3 CaO MnO K2O Ce2O3 PbO Ta2O5 Cl Cr2O3 Nb2O5 NiO 总量 1 0.10 10.44 24.38 1.16 0.03 0.27 43.52 0.50 0.63 / 0.16 0.46 13.98 0.11 0.04 / 0.42 0.05 96.25 2 / 8.28 25.17 2.65 0.06 0.06 47.75 0.68 0.59 0.06 0.22 / 12.37 0.29 0.02 / 0.51 / 98.71 3 / 11.69 21.29 4.76 / / 43.86 0.35 0.55 / 0.12 / 13.12 0.11 0.73 0.06 0.87 / 97.56 4 / 9.95 24.87 3.38 0.02 / 42.68 0.32 0.53 / 0.12 / 14.50 0.18 0.65 / 0.80 0.04 98.04 5 / 10.89 22.85 4.31 / / 42.41 0.30 0.59 0.05 0.13 / 14.53 0.14 0.73 / 0.76 0.04 97.73 6 / 9.95 24.87 3.38 0.02 / 42.68 0.32 0.53 / 0.12 / 14.50 0.18 0.65 / 0.80 0.04 98.04 7 / 10.89 22.85 4.31 / / 42.41 0.30 0.59 0.05 0.13 / 14.53 0.14 0.73 / 0.76 0.04 97.73
下载: 导出CSV
表 6 钛铀矿电子探针分析结果（%）
Table 6. Electron–microprobe analyses (%) of brannerite
测点 SiO2 UO2 FeO Na2O MgO ThO2 TiO2 Al2O3 CaO MnO K2O Ce2O3 PbO Ta2O5 Cl Cr2O3 Nb2O5 NiO Yb2O3 总量 1 2.14 62.41 1.07 0.04 0.02 1.23 16.91 / 1.16 / 1.03 0.47 7.13 0.33 0.10 / 0.28 / / 94.32 2 2.35 60.70 1.58 0.07 / 1.34 17.22 0.07 1.13 0.05 1.05 / 7.11 0.47 0.13 / 0.29 0.09 0.13 93.78 3 4.08 52.49 2.43 0.05 0.05 0.37 23.52 0.18 0.89 0.04 1.01 / 9.25 0.21 0.30 / 0.36 / / 95.23 4 2.19 60.71 1.59 0.07 0.05 1.47 18.14 0.07 1.10 / 1.19 / 7.63 0.46 0.20 / 0.27 / 0.20 95.34 5 2.47 56.99 0.76 0.03 0.05 2.14 18.82 0.15 1.05 / 0.84 / 8.26 0.19 0.05 / 1.13 / / 92.93 6 2.69 58.62 1.16 0.06 / 1.90 17.34 0.12 1.17 / 0.81 0.23 8.16 0.51 0.04 / 1.07 / / 93.88 7 2.33 59.91 1.24 / / 1.59 17.28 0.04 1.20 / 0.86 / 7.71 0.32 0.03 / 0.81 / / 93.32 8 2.92 57.79 1.70 0.06 0.07 2.13 17.01 0.09 1.19 / 0.77 / 7.48 0.13 0.17 0.12 0.43 / 0.28 92.34 9 2.92 57.79 1.70 0.06 0.07 2.13 17.01 0.09 1.19 / 0.77 / 7.48 0.13 0.17 0.12 0.43 / 0.28 92.34
下载: 导出CSV
表 7 铀矿化透镜体化学组成（%）
Table 7. Major compositions (%) of uranium mineralized lenses
样号 SiO2 TiO2 Al2O3 Fe2O3 FeO MnO MgO CaO Na2O K2O P2O5 LOI Totle DI MF SI An II-1 54.83 0.39 19.54 8.03 0.55 0.03 0.38 5.45 3.95 0.81 0.09 5.28 99.33 55.4 0.38 2.79 42.7 II-2 55.09 0.06 21.74 6.60 0.25 0.02 0.20 4.63 5.24 1.48 0.05 4.12 99.47 62.9 0.20 1.45 32.5 II-3 51.90 0.03 23.18 6.77 0.24 0.03 0.15 7.35 5.47 0.74 0.28 3.80 99.94 53.1 0.15 1.12 41.4 II-4 51.52 0.06 18.43 4.79 1.66 0.01 0.01 4.40 5.68 1.26 0.10 5.79 93.71 27.4 4.24 15.04 59.3 平均 53.34 0.14 20.72 6.55 0.68 0.02 0.19 5.46 5.09 1.07 0.13 4.75 98.11 49.7 1.24 5.10 44.0
下载: 导出CSV
表 8 铀矿化透镜体稀土元素含量（10−6）
Table 8. Rare earth element compositions (10−6) of uraniferous mineralized lenses
样号 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu ΣREE LREE HREE LREE/HREE δEu II-1 2.82 5.05 0.773 3.45 0.91 0.520 0.75 0.19 1.23 0.30 0.92 0.17 1.18 0.19 18.44 13.52 4.91 2.75 1.87 II-2 1.89 2.63 0.358 1.48 0.36 0.674 0.38 0.09 0.63 0.16 0.55 0.09 0.59 0.08 9.96 7.39 2.57 2.88 5.51 II-3 5.24 9.61 1.47 6.24 1.63 0.881 1.40 0.39 2.37 0.50 1.53 0.28 1.85 0.25 33.63 25.07 8.56 2.93 1.74 II-4 4.15 6.97 1.34 5.59 1.38 0.677 1.17 0.28 1.62 0.34 0.98 0.18 1.22 0.18 26.08 20.11 5.97 3.37 1.59 平均 3.53 6.07 0.99 4.19 1.07 0.688 0.93 0.24 1.46 0.33 1.00 0.18 1.21 0.18 22.03 16.52 5.50 2.98 2.68
下载: 导出CSV
表 10 铀矿化透镜体Rb–Sr同位素测试结果
Table 10. Rb–Sr isotope dating of uranium mineralized lenses
样号 岩性 Rb/10−6 Sr/10−6 87Rb/86Sr 87Sr/86Sr 标准误差 (2σ) ISr Ⅱ-1 蚀变斜长岩 33.3 248 0.3884 0.713783 0.00002 0.708849 Ⅱ-2 蚀变斜长岩 50.4 377 0.3865 0.713125 0.000016 0.708215 Ⅱ-3 蚀变斜长岩 40.3 176 0.6635 0.715125 0.000017 0.706696 Ⅱ-4 蚀变斜长岩 52.1 211 0.7134 0.715037 0.000016 0.705974 平均 44.03 253 0.5380 0.7143 0.000017 0.707434
下载: 导出CSV
-
[1] Alexandre P, Kyser T K, Layton M K, Joy B, Uvarova Y. 2015. Chemical compositions of natural uraninite[J]. Canadian Mineralogist, 53(4): 595−622.
[2] Arndt N. 2013. The formation of massif anorthosite: Petrology in reverse[J]. Geoscience Frontiers, 4(2): 195−198.
[3] Ashwal L D. 1982. Mineralogy of mafic and Fe−Ti oxide−rich differentiates of the Marcy anorthosites massif, New York[J]. American Mineralogist, 67: 14−27.
[4] Ashwal L D, Seifert K E. 1980. Rare−earth−element geochemistry of anorthosite and related rocks from the Adirondacks, New York, and other massif−type complexes[J]. Geological Society of America Bulletin, 91(2): 659−684.
[5] Ashwal L D, Wooden J L. 1983. Sr and Nd isotope geochronology, geologic history, and origin of the Adirondack Anorthosite[J]. Geochimica et Cosmochimica Acta, 47: 1875−1885.
[6] Ashwal L D, Wooden J L, Phinney W C, Morrison D A. 1985. Sm−Nd and Rb−Sr isotope systematics of an Archean anorthosite and related rocks from the Superior Province of the Canadian Shield[J]. Earth and Planetary Science Letters, 74: 338−346.
[7] Barth M G, Foley S F. 2002. Partial melting in Archean subduction zones: Constraints from experimentally determined trace element partition coefficients between eclogitic minerals and tonalitic melts under upper mantle conditions[J]. Precambrian Research, 113: 323−340.
[8] Barton J. 1996. The Messina layered intrusion, Limpopo Belt, South Africa: An example of in−suit contamination of an Archean anorthosite complex by continental crust[J]. Precambrian Research, 78: 139−150.
[9] Boynton W V. 1984. Cosmochemistry of the rare earth elements: Meteorite studies[J]. Developments in Geochemistry, 2: 63−114.
[10] Charlier B, Duchesne J C, Auwera J V. 2006. Magma chamber processes in the Tellnes Ilmenite deposit (Rogaland Anorthosite SW Norway) and the formation of Fe−Ti ores in massif−type anorthosites[J]. Chemical Geology, 234: 264−290.
[11] Chen Wei, Zhao Taiping. 2007. Research progress in the petrogenesis of the Proterozoic anorthosite massifs[J]. Geological Journal of China Universities, 13(1): 117−126 (in Chinese with English abstract).
[12] Cuney M. 2010. Evolution of uranium fractionation processes through time: Driving the secular variation of uranium deposit types[J]. Economic Geology, 105: 553−569.
[13] Demaiffe D, Weis D, Michot J, Duchesne J C. 1986. Isotopic constraints on the genesis of the Rogaland anothositic (Southwest Norway)[J]. Chemical Geology, 57: 167−179.
[14] Deng Ping, Shen Weizhou, Ling Hongfei, Ye Haimin, Wang Xuecheng, Pu Wei, Tan Zhengzhong. 2003. Uranium mineralization related to mantle fluid: A case study of the Xianshi deposit in the Xiazhuang uranium orefield[J]. Geochimica, 32(6): 520−528 (in Chinese with English abstract).
[15] Du Letian, Wang Wenguang. 2005. Occurrence states of uranium in the mantle and their geochemical implication[J]. Earth Science Frontiers, 12(1): 69−78 (in Chinese with English abstract).
[16] Duchesne J C. 1999. Fe−Ti deposit in Rogaland anorthosites (South Norway): Geochemical characteristic and problems of interpretation[J]. Mineralium Deposita, 34: 182−198.
[17] Emslie R F. 1978. Anorthosite massifs, rapakivi granites, and Late Proterozoic rifting of North America[J]. Precambrian Research, 7: 61−98.
[18] Frimmel H E, Schedel S, Brätz H. 2014. Uraninites chemistry as forensic tool for provenance analysis[J]. Applied Geochemistry, 48: 104−121.
[19] Fryer B J, Taylor R P. 1987. Rare−earth element distributions in uraninites implications for ore genesis[J]. Chemical Geology, 63: 101−108.
[20] Geist D J, Frost C D, Kolker A. 1990. Sr and Nd isotopic constraints on the origin of the Laramie Anorthosite Complex, Wyoming[J]. American Mineralogist, 75: 13−20.
[21] Goldberg S A. 1984. Geochemical relationships between anorthosite and associated iron−rich rocks, Laramie Range, Wyoming[J]. Contributions to Mineralogy and Petrology, 87(4): 376−387.
[22] Green D H, Morgan J W. 1968. Thorium, uranium and potassium abundances in peridotite inclusions and their hot basalts[J]. Earth and Planetary Science Letters, 4: 155−166.
[23] Green H W Ⅱ. 1979. Trace elements in the fluid phase of the Earth's mantle[J]. Nature, 277: 465−467.
[24] Green T H, Pearson N J. 1986. Rare−earth element partitioning between sphene and coexisting silicate liquid at high−pressure and temperature[J]. Chemical Geology, 55: 105−119.
[25] Haskin L A, Salpas P A. 1992. Genesis of compositional characteristics of Stillwater AN−Ⅰ and AN−Ⅱ thick anorthosite units[J]. Geochimica et Cosmochimica Acta, 56: 1187−1212.
[26] Heath S A, Fairbairn H W. 1967. 87Sr/86Sr Ratios in Anorthosites and Some Associated Rocks[D]. Cambridge: Massachusetts Institute of Technology.
[27] Heier K S. 1963. Uranium, thorium and potassium in eclogitic rocks[J]. Geochimica et Cosmochimica Acta, 27: 849−860.
[28] Hellman P L, Green T H. 1979. The role of sphene as an accessory phase in the high−pressure partial melting of hydrous mafic compositions[J]. Earth and Planetary Science Letters, 42(2): 191−201.
[29] Herndon J M. 1993. Feasibility of a nuclear fission reactor at the Center of the Earth as the energy source for the geomagnetic field[J]. Journal of Geomagnetism and Geoelectricity, 45: 423−437.
[30] Herndon J M. 2003. Nuclear georeactor origin of oceanic basalt 3He/4He, evidence, and implications[J]. Proceedings of the National Academy of Sciences of the United States of America, 100: 3047−3050.
[31] Herndon J M. 2006. Solar system processes underlying planetary formation, geodynamics, and the georeactor[J]. Earth, Moon and Planets, 99: 53−89.
[32] Herz H. 1969. Anrothosite belt, continental drift and the anorthosite event[J]. Science, 164: 944−947.
[33] Hu Ruizhong, Bi Xianwu, Su Wenchao, Peng Jiantang, Li Chaoyang. 2004. The relationship between uranium metallogenesis and crustal extension during the Cretaceous−Tertiary in South China[J]. Earth Science Frontiers, 11(1): 153−160 (in Chinese with English abstract).
[34] Hu Ruizhong, Li Chaoyang, Ni Shijun, Liu Li. 1993. Research on ΣCO2 Source in ore−forming hydrothermal solution of granite−type uranium deposits, South China[J]. Science in China (Series B), 23(2): 189−196 (in Chinese).
[35] Hu Ruizhong, Luo Jincheng, Chen Youwei, Pan Lichuan. 2019. Several progresses in the study of uranium deposits in South China[J]. Acta Petrologica Sinica, 35(9): 2625−2636 (in Chinese with English abstract).
[36] Hu Shiling, Wang Songshan, Sang Haiqing, Qiu Ji, Ye Donghu, Chui Renhe, Qi Changmou. 1990. The isotopic ages and REE geochemistry of Daomiao anorthosite and their geological implication[J]. Scientia Geologica Sinica, (4): 332−343 (in Chinese with English abstract).
[37] Hu Shouxi, Ye Ying, Fang Changquan. 2004. Petrology of the Metasomatically Altered Rocks and Its Significance in Prospecting[M]. Beijing: Geological Publishing House (in Chinese).
[38] Huang Shijie. 2006. Preliminary discussion on deep−sourced uranium metallogenesis and deep prospecting[J]. Uranium Geology, 22(2): 70−75 (in Chinese with English abstract).
[39] Jiang Yaohui, Jiang Shaoyong, Linghongfei. 2004. Mantle−derived fluids and uranium mineralization[J]. Earth Science Frontiters, 11(2): 491−499 (in Chinese with English abstract).
[40] John T, Klemd R, Klemme S, Pfänder J A, Hoffmann J E, Gao J. 2011. Nb−Ta fractionation by partial melting at the titanite−rutile transition[J]. Contributions to Mineralogy and Petrology, 161: 35−45.
[41] Klemme S, Blundy J D, Wood B J. 2002. Experimental constraints on major and trace element partitioning during partial melting of eclogite[J]. Geochimica et Cosmochimica Acta, 66: 3109−3312.
[42] Komor S C, Elthon D. 1990. Formation of anorthosite−gabbro rhythmic phase layering: An example at North Arm Mountain, bay of islands ophiolite[J]. Journal of Petrology, 31: 1−50.
[43] Kushiro I, Fujii T. 1977. Floatation of plagioclase in magma at high pressures and its bearing on the origin of anorthosite[J]. Proceedings of the Japan Academy Ser B Physical & Biological Sciences, 53(7): 262−266.
[44] Kutty T R N, Iyer G V A, Ramakrishana M, Verma S P. 1984. Geochemical of meta−anorthosites from Holénarasipur, Karnataka, South India[J]. Lithos, 17: 317−328.
[45] Li Ziying. 2006. Hostspot uranium metallogenesis in South China[J]. Uranium Geology, 22(2): 65−69 (in Chinese with English abstract).
[46] Li Ziying, Li Xiuzhen, Lin Jinrong. 1999. On the Meso−Cenozoic mantle plume tectonics, its relationship to uranium metallogenesis and prospecting directions in South China[J]. Uranium Geology, 15(1): 9−17 (in Chinese with English abstract).
[47] Li Z Y, Huang Z Z, Li X Z, Guo J, Fan C. 2015. The discovery of natural native uranium and its significance[J]. Acta Geologica Sinca (English Edition), 89(5): 1561−1567.
[48] Macaudière J, William L, Ohmenstetter D. 1985. Microcrystalline textures resulting from rapid crystallization in a pseudotachylite melt in a meta−anorthosite[J]. Contributions to Mineralogy and Petrology, 89: 39−51.
[49] Maier W D, Karykowski B T, Yang S H. 2016. Formation of transgressive anorthosite seams in the Bushveld Complex via tectonically induced mobilisation of plagioclase−rich crystal mushes[J]. Geoscience Frontiers, 7: 875−889.
[50] Mao Jingwen, Li Xiaofeng, Zhang Ronghua, Wang Yitian, Hao Ying. 2005. Deep Fluids Metallogenic System[M]. Beijing: China Land Press.
[51] Meinhold G. 2010. Rutile and its applications in earth sciences[J]. Earth Science Reviews, 102: 1−28.
[52] Mercadier J, Cuney M, Lach P, Boiron M C, Bonhoure J, Richard A, Leisen M, Kister P. 2011. Origin of uranium deposits revealed by their rare earth element signature[J]. Terra Nova, 23: 264−269.
[53] Pang Yaqin, Fan Honghai, Gao Fei, Wu Jianyong, Xie Xiaozhan. 2019. Helium and argon isotopic compositions of fluid for the south Zhuguang uranium ore field in northern Guangdong Province[J]. Acta Petrologica Sinica, 35(9): 2665−2773 (in Chinese with English abstract).
[54] Pospelov G L. 1973. Paradoksy, Geologo−fizicheskaya Sushchnost'i Mekhanizmy Metasomatoza (Paradoxes, Geological–Physical Essence and Mechanisms of Metasomatism)[M]. Novosibirsk: Publishing House Nauka.
[55] Romey W D. 1968. An evaluation of some ‘differences’ between anorthosite in massifs and in layered complexes[J]. Lithos, 1: 230−241.
[56] Rosenbaum J M, Zindler A, Rubenstone J L. 1996. Mantle fluids: Evidence from fluid inclusions[J]. Geochimica et Cosmochimica Acta, 60(17): 3229−3252.
[57] Scoates J S, Chamberlain K R. 1997. Orogenic to post−orogenic origin for the 1.76 Ga Horse Creek anorthosite complex, Wyoming, USA[J]. The Journal of Geology, 105: 331−343.
[58] Spano T L, Simonetti A, Wheeler T, Carpenter G, Freet D, Balboni E. 2017. A novel nuclear forensic tool involving deposit type normalized rare earth element signatures[J]. Terra Nova, 29: 294−305.
[59] Tian Jianji, Zhang Guoquan, Shang Pengqiang, Qi Youqiang. 2019. Ore−forming material sources of the Dachayuan uranium deposit, Zhejiang Province: Evidence from C–O and Sr–Nd isotopes[J]. Acta Petrologica Sinica, 35(9): 2817−2829 (in Chinese with English abstract).
[60] Varfalvy V, Hebert R, Bedard J H, Lafleche M R. 1997. Petrology and geochemistry of pyroxenite dykes in upper mantle peridotites of the North Arm Mountain Massif, Bay of islands ophiolite, Newfoundland: Implications for the genesis of boninitic and related magmas[J]. The Canadian Mineralogist, 35(2): 543−570.
[61] Wang Zhengqi, Li Ziying. 2007. Discussion on mantle−derived uranium mineralization[J]. Geological Review, 53(5): 608−615 (in Chinese with English abstract).
[62] Wiebe R A, Wild T. 1983. Fractional crystallization and magma mixing in the Tigalak layered intrusion the Nain anorthosite complex, Labrador[J]. Contributions to Mineralogy and Petrology, 84: 327−344.
[63] Wu Dehai, Xia Fei, Pan Jiayong, Liu Guoqi, Huang Guolong, Liu Wenquan, Wu Jianyong. 2019. Characteristics of hydrothermal alteration and material migration of the Mianhuakeng uranium deposit in northern Guangdong Province[J]. Acta Petrologica Sinica, 35(9): 2645−2764 (in Chinese with English abstract).
[64] Xie Guanghong. 1977. Some questions about plagioclase[J]. Geology Geochemistry, 6: 1−11 (in Chinese with English abstract).
[65] Xie Guanghong. 1980. Petrochemical characteristics of the anorthosite suite in Damiao, Hebei Province, China[J]. Geochimica, 3: 263−278 (in Chinese with English abstract).
[66] Xie Guanghong. 2005. Petrology and Geochemistry of the Damiao Anorthosite and the Miyun Rapakivi Granite[M]. Beijing: Science Press (in Chinese).
[67] Yang Zhensheng, Xu Zhongyuan, Liu Zhenghong, Huang Daoling. 2008. The Methods of Geological Survey and Comprehensive Research in Metamorphic Areas[M]. Beijing: Geological Publishing House (in Chinese).
[68] Yuan Q, Cao X, Lü X, Wang X, Yang E, Liu Y, Ruan B, Liu H, Munir M. 2014. LA−ICP−MS U−Pb zircon geochronology and Hf isotope, geochemistry and kinetics of the Daxigou anorthosite from Kuruqtagh block, NW China[J]. Chinese Journal of Geochemistry, 33: 207−220.
[69] Zack T, Moraes R, Kronz A. 2004. Temperature dependence of Zr in rutile: Empirical calibration of a rutile thermometer[J]. Contributions to Mineralogy and Petrology, 148: 471−488.
[70] Zhai Yusheng. 1965. The characteristics and petrogenesis of an anorthosite[J]. Geological Review, 23(3): 186−195 (in Chinese with English abstract).
[71] Zhang Bangtong, Ling Hongfei, Wu Junqi. 2014. New finding of brannerite−uraninite−coffinite−pitchblende micro−assemblage and its genetic significance at the No. 6722 uranium deposit, Southern Jiangxie Province[J]. Geological Review, 60(6): 14187−1424 (in Chinese with English abstract).
[72] Zhang S H, Liu S W, Zhao Y, Yang J H, Song B, Liu X M. 2007. The 1.75−1.68 Ga anorthosite−mangerite−alkali granitoid−rapakivi granite suite from the norther North Chian Craton: Magmatism related to a Paleoproterozoic orogen[J]. Precambrian Research, 155: 287−312.
[73] Zhong Fudao, Xie Guanghong. 1978. The age of anorthosite event and its geological implications[J]. Geochimica, (3): 202−208 (in Chinese with English abstract).
[74] 陈伟, 赵太平. 2007. 元古宙岩体型斜长岩的特征及研究现状[J]. 高校地质学报, 13(1): 117−126. doi: 10.3969/j.issn.1006-7493.2007.01.015
[75] 邓平, 沈渭洲, 凌洪飞, 叶海敏, 王学成, 濮巍, 谭正中. 2003. 地幔流体与铀成矿作用: 以下庄矿田仙石铀矿床为例[J]. 地球化学, 32(6): 520−528. doi: 10.3321/j.issn:0379-1726.2003.06.002
[76] 杜乐天, 王文广. 2005. 地幔中铀的存在状态及其地球化学含义[J]. 地学前缘, 12(1): 69−78. doi: 10.3321/j.issn:1005-2321.2005.01.011
[77] 胡瑞忠, 毕献武, 苏文超, 彭建堂, 李朝阳. 2004. 华南白垩纪—第三纪地壳拉张与铀成矿关系[J]. 地学前缘, 11(1): 153−159.
[78] 胡瑞忠, 李朝阳, 倪师军, 刘莉, 于津生. 1993. 华南花岗岩型铀矿床成矿热液中CO2来源研究[J]. 中国科学(B辑), 23(2): 189−196.
[79] 胡瑞忠, 骆金诚, 陈佑纬, 潘力川. 2019. 华南铀矿床研究若干进展[J]. 岩石学报, 35(9): 2625−2636. doi: 10.18654/1000-0569/2019.09.01
[80] 胡世玲, 王松山, 桑海清, 裘冀, 叶东虎, 崔人合, 戚长谋. 1990. 大庙斜长岩同位素地质年龄、稀土地球化学及其地质意义[J]. 地质科学, (4): 332−343.
[81] 胡受奚, 叶瑛, 方长泉. 2004. 交代蚀变岩岩石学及其找矿意义[M]. 北京: 地质出版社.
[82] 黄世杰. 2006. 略谈深源铀成矿与深部找矿问题[J]. 铀矿地质, 22(2): 70−75. doi: 10.3969/j.issn.1000-0658.2006.02.002
[83] 姜耀辉, 蒋少涌, 凌洪飞. 2004. 地幔流体与铀成矿作用[J]. 地学前缘, 11(2): 491−499. doi: 10.3321/j.issn:1005-2321.2004.02.019
[84] 李子颖. 2006. 华南热点铀成矿作用[J]. 铀矿地质, 22(2): 65−69. doi: 10.3969/j.issn.1000-0658.2006.02.001
[85] 李子颖, 李秀珍, 林锦荣. 1999. 试论华南中新生代地幔柱构造、铀矿成矿作用及其找矿方向[J]. 铀矿地质, 15(1): 9−17. doi: 10.3969/j.issn.1000-0658.1999.01.002
[86] 毛景文, 李晓峰, 张荣华, 王义天, 赫英. 2005. 深部流体成矿系统[M]. 北京: 中国大地出版社.
[87] 庞雅庆, 范洪海, 高飞, 吴建勇, 谢小占. 2019. 粤北诸广南部铀矿田流体包裹体的氦氩同位素组成及成矿流体来源示踪[J]. 岩石学报, 35(9): 2765−2773. doi: 10.18654/1000-0569/2019.09.09
[88] 田建吉, 张国全, 商朋强, 齐有强. 2019. 大茶园铀矿床成矿物质来源: C−O和Sr−Nd同位素证据[J]. 岩石学报, 35(9): 2817−2829. doi: 10.18654/1000-0569/2019.09.13
[89] 王正其, 李子颖. 2007. 幔源铀成矿作用探讨[J]. 地质论评, 53(5): 608−615. doi: 10.3321/j.issn:0371-5736.2007.05.005
[90] 吴德海, 夏菲, 潘家永, 刘国奇, 黄国龙, 刘文泉, 吴建勇. 2019. 粤北棉花坑铀矿床热液蚀变与物质迁移研究[J]. 岩石学报, 35(9): 2745−2764. doi: 10.18654/1000-0569/2019.09.08
[91] 解广轰. 1977. 有关斜长岩的一些问题[J]. 地质地球化学, (6): 1−11.
[92] 解广轰. 1980. 大庙斜长岩杂岩体的岩石学特征[J]. 地球化学, (3): 263−278. doi: 10.3321/j.issn:0379-1726.1980.03.006
[93] 解广轰. 2005. 大庙斜长岩和密云环斑花岗岩的岩石学和地球化学[M]. 北京: 科学出版社.
[94] 杨振升, 徐仲元, 刘正宏, 黄道玲. 2008. 高级变质岩区地质调查与综合研究方法[M]. 北京: 地质出版社.
[95] 翟裕生. 1965. 某斜长岩的岩石特征及成因[J]. 地质论评, 23(3): 186−195. doi: 10.3321/j.issn:0371-5736.1965.03.004
[96] 章邦桐, 凌洪飞, 吴俊奇. 2014. 赣南6722铀矿床钛铀矿−晶质铀矿−铀石−沥青铀矿显微共生组合的厘定及成因意义[J]. 地质论评, 60(6): 1418−1424.
[97] 钟富道, 解广轰. 1978. 斜长岩事件年龄及其地质意义[J]. 地球化学, (3): 202−208. doi: 10.3321/j.issn:0379-1726.1978.03.005
-
图(14)
表(10)
计量
- 文章访问数: 521
- PDF下载数: 62
- 施引文献: 0