临沧地区富铀花岗岩体地球化学特征及其地质意义
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田建民, 徐争启, 尹明辉, 李涛, 孙康
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Geochemical characteristics and geological significance of uranium-rich granites in Lincang area
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TIAN Jian-Min, XU Zheng-Qi, YIN Ming-Hui, LI Tao, SUN Kang
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表2 临沧地区富铀花岗岩主量元素分析结果
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Table 2 Analysis results of main elements of rich uranium granite in Lincang area %
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指标 | 双江样品 | 凤庆样品 | 中国 花岗岩[24] | 世界 花岗岩[25] | YN027 | YN028 | YN029 | YN030 | YN031 | YN050 | YN051 | YN052 | YN053 | YN054 | YN055 | YN056 | YN057 | SiO2 | 69.9 | 70.41 | 71.61 | 72.34 | 70.53 | 74.75 | 83 | 79.32 | 90.11 | 72.45 | 42.69 | 61.77 | 72.49 | 71.99 | 71.3 | Al2O3 | 14.24 | 12.94 | 14.86 | 14.32 | 12.34 | 6.27 | 7.6 | 7.31 | 4.39 | 13.72 | 1.19 | 8.01 | 14.41 | 13.86 | 14.32 | Fe2O3 | 1.77 | 4.08 | 1.59 | 1.47 | 3.41 | 4.79 | 3.72 | 2.73 | 1.99 | 2.12 | 14.97 | 5.1 | 1.9 | 1.37 | 1.21 | MgO | 1.14 | 0.82 | 0.73 | 0.62 | 0.63 | 0.28 | 0.56 | 0.24 | 0.16 | 0.54 | 0.34 | 0.66 | 0.71 | 0.81 | 0.71 | CaO | 1.63 | 0.62 | 0.47 | 0.53 | 1.18 | 0.07 | 0.08 | 0.06 | 0.05 | 0.29 | 0.3 | 0.52 | 0.69 | 0.12 | 0.05 | Na2O | 1.11 | 0.15 | 2.92 | 3.15 | 0.64 | 0.11 | 0.11 | 0.12 | 0.07 | 0.8 | 7.3 | 2.25 | 2.76 | 3.81 | 4.07 | K2O | 5.13 | 4.21 | 4.57 | 4.75 | 4.7 | 2.42 | 2.4 | 3.14 | 1.43 | 6 | 0.16 | 3.23 | 4.92 | 3.42 | 3.66 | MnO | 0.04 | 0.02 | 0.02 | 0.04 | 0.01 | 0 | 0.01 | 0.01 | <0.004 | 0.03 | 0.03 | 0.1 | 0.03 | 1.55 | 1.84 | TiO2 | 0.35 | 0.25 | 0.31 | 0.27 | 0.25 | 0.1 | 0.07 | 0.12 | 0.07 | 0.2 | 0.01 | 0.14 | 0.28 | 0.21 | 0.31 | P2O5 | 0.11 | 0.19 | 0.11 | 0.1 | 0.12 | 0.03 | 0.04 | 0.05 | 0.02 | 0.12 | 0.3 | 0.43 | 0.11 | 0.2 | 0.12 | FeO | 0.89 | 0.58 | 0.92 | 1.29 | 0.56 | 0.66 | 2.62 | 0.47 | 0.59 | 0.7 | 0.65 | 0.68 | 1.44 | 1.7 | 1.64 | 烧失量 | 4.55 | 5.73 | 2.77 | 2.41 | 5.6 | 5.04 | 2.39 | 2.42 | 1.23 | 3.19 | 6.68 | 4.77 | 1.69 | | | Total | 100.86 | 100 | 100.88 | 101.29 | 99.97 | 94.52 | 102.6 | 95.99 | 100.11 | 100.16 | 74.62 | 87.66 | 101.43 | | | A/NK | 2.28 | 2.97 | 1.98 | 1.81 | 2.31 | 2.48 | 3.02 | 2.25 | 2.93 | 2.02 | 0.16 | 1.46 | 1.88 | | | A/CNK | 1.81 | 2.6 | 1.87 | 1.7 | 1.89 | 2.41 | 2.94 | 2.2 | 2.84 | 1.93 | 0.15 | 1.33 | 1.72 | | | Na2O+K2O | 6.24 | 4.36 | 7.49 | 7.9 | 5.34 | 2.53 | 2.51 | 3.26 | 1.5 | 6.8 | 7.46 | 5.48 | 7.68 | | |
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