江南古陆西北部塔下岩体年代学及成因研究
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位鸥祥,张达玉,刘劲松,陈雪锋,叶龙翔,蒋华,钱祥,周涛发
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Geochronology and Genesis of Taxia Granodiorite Intrusion in the Northwest Jiangnan Proterozoic Terrane
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Ouxiang WEI,Dayu ZHANG,Jinsong LIU,Xuefeng CHEN,Longxiang YE,Hua JIANG,Xiang QIAN,Taofa ZHOU
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表2 塔下花岗闪长岩体主量元素(%)、微量和稀土元素(×10-6)分析结果
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Table 2 Analytical results of major elments(%),trace elements and rare earth elements(×10-6)of Taxia
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类别 | 名称 | 样品编号及分析结果 | TX-01 | TX-02 | TX-03 | TX-04 | TX-05 | TX-06 | TX-07 | TX-08 | TX-09 | TX-10 | 主量元素/% | SiO2 | 69.33 | 69.23 | 71.45 | 69.05 | 68.98 | 69.44 | 71.75 | 71.62 | 68.48 | 68.12 | TiO2 | 0.30 | 0.30 | 0.31 | 0.31 | 0.30 | 0.30 | 0.31 | 0.30 | 0.30 | 0.29 | Al2O3 | 14.97 | 15.03 | 15.68 | 14.85 | 14.81 | 15.06 | 15.18 | 15.39 | 14.72 | 14.55 | TFe2O3 | 2.16 | 2.22 | 2.26 | 2.26 | 2.22 | 2.30 | 2.29 | 2.25 | 2.17 | 2.20 | MnO | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | 0.04 | MgO | 0.80 | 0.80 | 0.80 | 0.82 | 0.77 | 0.81 | 0.82 | 0.81 | 0.78 | 0.74 | CaO | 2.32 | 2.13 | 0.47 | 2.17 | 2.41 | 1.53 | 0.48 | 0.59 | 2.56 | 3.14 | Na2O | 4.42 | 4.54 | 4.40 | 4.18 | 4.34 | 4.82 | 4.37 | 4.34 | 4.25 | 3.76 | K2O | 2.86 | 2.75 | 2.90 | 2.91 | 2.39 | 3.06 | 2.91 | 2.88 | 2.64 | 2.74 | P2O5 | 0.10 | 0.10 | 0.10 | 0.11 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.09 | LOI | 2.85 | 2.89 | 1.71 | 2.92 | 3.32 | 2.08 | 1.65 | 1.82 | 3.33 | 3.93 | Total | 100.14 | 100.02 | 100.11 | 99.61 | 99.67 | 99.53 | 99.89 | 100.13 | 99.36 | 99.60 | A/CNK | 1.03 | 1.05 | 1.39 | 1.06 | 1.05 | 1.07 | 1.35 | 1.36 | 1.01 | 0.98 | A/NK | 1.44 | 1.44 | 1.51 | 1.48 | 1.52 | 1.34 | 1.47 | 1.50 | 1.49 | 1.59 | DI | 82.82 | 83.36 | 88.10 | 82.81 | 81.83 | 86.0 | 88.43 | 87.9 | 81.56 | 79.2 | 稀土、微量元素 / (×10-6) | Rb | 85.5 | 83.3 | 82.7 | 83.3 | 79.2 | 85.3 | 80.4 | 81.1 | 78.8 | 93.6 | Ba | 757 | 740 | 852 | 787 | 576 | 858 | 953 | 836 | 608 | 500 | Nb | 4.6 | 4.5 | 4.7 | 5.1 | 4.6 | 5.0 | 4.7 | 4.6 | 4.5 | 4.9 | Sr | 417 | 402 | 344 | 363 | 445 | 676 | 333 | 308 | 383 | 435 | Zr | 137 | 138 | 155 | 143 | 132 | 151 | 157 | 148 | 132 | 143 | La | 30.4 | 27.4 | 31.2 | 27.7 | 26.8 | 29.8 | 32.7 | 29.0 | 25.3 | 26.9 | Ce | 58.7 | 51.6 | 59.4 | 54.2 | 52.3 | 57.8 | 59.1 | 52.9 | 48.0 | 51.9 | Pr | 6.45 | 5.97 | 6.74 | 5.76 | 5.80 | 6.18 | 6.74 | 6.24 | 5.41 | 5.76 | Nd | 24.3 | 22.0 | 24.8 | 22.1 | 21.7 | 23.9 | 25.8 | 23.7 | 20.9 | 21.9 | Sm | 3.56 | 3.74 | 3.86 | 3.53 | 3.49 | 3.69 | 3.92 | 3.63 | 3.28 | 3.46 | Eu | 0.99 | 0.92 | 0.98 | 0.89 | 0.86 | 0.95 | 0.98 | 0.97 | 0.85 | 0.91 | Gd | 2.86 | 2.73 | 2.95 | 2.59 | 2.51 | 2.65 | 2.84 | 2.78 | 2.46 | 2.68 | Tb | 0.32 | 0.32 | 0.30 | 0.28 | 0.27 | 0.30 | 0.31 | 0.30 | 0.27 | 0.29 | Dy | 1.57 | 1.55 | 1.60 | 1.54 | 1.46 | 1.45 | 1.46 | 1.58 | 1.45 | 1.58 | Ho | 0.26 | 0.26 | 0.27 | 0.24 | 0.26 | 0.24 | 0.24 | 0.27 | 0.25 | 0.27 | Er | 0.72 | 0.75 | 0.75 | 0.72 | 0.66 | 0.63 | 0.70 | 0.77 | 0.69 | 0.76 | 稀土、微量元素 /(×10-6) | Tm | 0.10 | 0.10 | 0.10 | 0.09 | 0.08 | 0.08 | 0.09 | 0.10 | 0.09 | 0.10 | Yb | 0.59 | 0.61 | 0.59 | 0.53 | 0.49 | 0.48 | 0.53 | 0.60 | 0.56 | 0.61 | Lu | 0.09 | 0.09 | 0.09 | 0.08 | 0.07 | 0.07 | 0.08 | 0.09 | 0.08 | 0.09 | Y | 7.2 | 7.2 | 7.6 | 7.7 | 7.2 | 7.6 | 7.2 | 7.4 | 7.1 | 7.9 | Cr | 40 | 70 | 40 | 50 | 30 | 40 | 30 | 30 | 30 | 30 | V | 43 | 43 | 46 | 45 | 43 | 38 | 44 | 41 | 42 | 38 | Cs | 7.39 | 7.61 | 7.63 | 6.56 | 8.01 | 5.12 | 6.83 | 7.89 | 7.46 | 8.74 | Th | 12.70 | 11.95 | 13.05 | 12.50 | 11.85 | 11.30 | 12.45 | 12.10 | 11.80 | 11.50 | U | 3.84 | 3.71 | 2.80 | 3.72 | 3.10 | 3.16 | 2.66 | 2.44 | 3.39 | 2.85 | Ta | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.5 | Hf | 4.3 | 4.1 | 4.5 | 4.2 | 4.0 | 4.0 | 4.4 | 4.6 | 4.0 | 4.2 | δEu | 0.950 | 0.881 | 0.889 | 0.901 | 0.889 | 0.930 | 0.899 | 0.935 | 0.916 | 0.915 | (Gd/Yb)N | 4.000 | 3.693 | 4.126 | 4.033 | 4.227 | 4.556 | 4.422 | 3.824 | 3.625 | 3.626 | (La/Yb)N | 36.96 | 32.22 | 37.93 | 37.49 | 39.23 | 44.53 | 44.26 | 34.67 | 32.41 | 31.63 |
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