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    全吉群碎屑锆石的U-Pb年龄谱和微量元素:基底热事件信息和早期演化启示

    张璐 巴金 陈能松 王勤燕 廖梵汐 李晓彦

    张璐, 巴金, 陈能松, 王勤燕, 廖梵汐, 李晓彦, 2012. 全吉群碎屑锆石的U-Pb年龄谱和微量元素:基底热事件信息和早期演化启示. 地球科学, 37(S1): 28-42. doi: 10.3799/dqkx.2012.S1.004
    引用本文: 张璐, 巴金, 陈能松, 王勤燕, 廖梵汐, 李晓彦, 2012. 全吉群碎屑锆石的U-Pb年龄谱和微量元素:基底热事件信息和早期演化启示. 地球科学, 37(S1): 28-42. doi: 10.3799/dqkx.2012.S1.004
    ZHANG Lu, BA Jin, CHEN Neng-song, WANG Qin-yan, LIAO Fan-xi, LI Xiao-yan, 2012. U-Pb Age Spectra and Trace Elements of Detrital Zircon from Quanji Group: Implications for Thermal Events and Early Evolution in the Basement. Earth Science, 37(S1): 28-42. doi: 10.3799/dqkx.2012.S1.004
    Citation: ZHANG Lu, BA Jin, CHEN Neng-song, WANG Qin-yan, LIAO Fan-xi, LI Xiao-yan, 2012. U-Pb Age Spectra and Trace Elements of Detrital Zircon from Quanji Group: Implications for Thermal Events and Early Evolution in the Basement. Earth Science, 37(S1): 28-42. doi: 10.3799/dqkx.2012.S1.004

    全吉群碎屑锆石的U-Pb年龄谱和微量元素:基底热事件信息和早期演化启示

    doi: 10.3799/dqkx.2012.S1.004
    基金项目: 

    国家自然科学基金 40972042

    国家自然科学基金 40772041

    详细信息
      作者简介:

      张璐(1987-),女,博士研究生,岩石学专业

      通讯作者:

      陈能松,E-mail: nengsongchen@cug.edu.cn

    • 中图分类号: P597.3

    U-Pb Age Spectra and Trace Elements of Detrital Zircon from Quanji Group: Implications for Thermal Events and Early Evolution in the Basement

    • 摘要: 本研究应用LA-ICP-MS测定了从塔里木陆块离解出来的一个大陆碎块(片),即全吉地块盖层全吉群下部南华纪石英砂岩中碎屑锆石的111个测点的U-Pb年龄和微量元素组成.87个谐和年龄构成的锆石年龄谱记录了强烈的古元古代~2.45、~2.32、~2.11和~1.95 Ga热事件以及微弱的太古代热事件信息,指示南华纪石英砂岩的物源可能是来自全吉地块中、东部的由达肯大坂岩群和未剥露到古元古代末基性岩墙群的德令哈杂岩组成的基底岩系.碎屑锆石的CL图像和微量元素组成表明,~2.45、~2.32和~2.11 Ga热事件的性质主体为岩浆侵入活动并可能伴随地壳生长;~1.95 Ga热事件主要为变质-深熔作用,但不排除存在岩浆侵入的可能性.本研究结果表明,全吉地块和其塔里木母陆块基底主要由古元古代岩石组成,发育区域性古元古代早-中期(~2.32~2.45 Ga)的岩浆侵入作用和地壳生长,与华北陆块具有相似的地质演化历史或可能发生过构造互动.

       

    • 图  1  全吉地块及其邻区构造位置

      (据Xu et al., 2006修改)

      Fig.  1.  Tectonic position of the Quanji block and adjacent tectonic units

      图  2  碎屑锆石U-Pb年龄谐和图(a)和锆石U-Pb年龄概率分布直方图(b)

      Fig.  2.  U-Pb concordia plots of concordant detrital zircons (a) and relative probability plots of U-Pb ages for concordant detrital zircons (b)

      图  3  锆石U-Pb年龄与Th/U比值关系(a)和锆石REE球粒陨石标准化分配模式(b)

      Fig.  3.  Diagram showing relationship between Th/U ratios and U-Pb ages for detrital zircons (a) and chondrite-normalized REE patterns of zircon grains (b)

      图  4  锆石分类回归判别树(Belousova et al., 2002) (a)和锆石成分判别岩石类型(b)

      K.金伯利岩; B.玄武岩; D.辉绿岩; C.碳酸岩; N.碱性正长岩和正长伟晶岩(Ne-S/SP); S.正长岩; S/M.正长岩/二长岩; G1.花岗岩类(<65% SiO2); G2.花岗岩类(70%~75% SiO2); G3.花岗岩类(>75% SiO2)

      Fig.  4.  "Short" classification and regression trees for the recognition of zircons from different rock types (a) and relative of rock types derived from zircon compositions (b)

      图  5  锆石阴极发光图及207Pb/206Pb年龄

      Fig.  5.  CL images of the zircons and 207Pb/206Pb age

      表  1  碎屑锆石U-Pb同位素数据

      Table  1.   U-Pb isotopic data for detrital zircons

      分析点号 浓度(10-6) 232Th/238U 同位素比值 谐和度 年龄(Ma) 成因 类型
      Pb 232Th 238U 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ
      1 197.8 124.9 544.3 0.23 0.135 7 0.002 7 6.596 2 0.140 5 0.350 6 0.003 2 112 2 173 34 2 059 19 1 937 16 M
      2 47.3 117.4 104.2 1.13 0.124 0 0.002 4 6.254 3 0.120 5 0.364 3 0.002 8 101 2 017 35 2 012 17 2 003 13 G D
      3 36.2 93.8 81.6 1.15 0.123 2 0.002 6 6.060 3 0.125 4 0.355 7 0.003 1 102 2 003 37 1 985 18 1 962 15 M
      4 129.3 321.7 381.3 0.84 0.138 8 0.002 3 5.577 8 0.093 4 0.290 0 0.002 0 135 2 213 30 1 913 14 1 641 10 G D
      5 73.9 105.7 155.0 0.68 0.144 6 0.002 6 8.381 2 0.151 5 0.418 0 0.002 9 101 2 284 31 2 273 16 2 252 13 G D
      6 98.9 107.9 199.2 0.54 0.154 5 0.003 1 9.586 0 0.193 6 0.447 4 0.003 8 101 2 396 34 2 396 19 2 384 17 G G1
      7 99.0 94.0 247.1 0.38 0.131 0 0.002 6 6.970 3 0.137 2 0.383 7 0.003 1 101 2 122 35 2 108 17 2 094 14 M
      8 83.9 272.3 167.0 1.63 0.131 6 0.002 9 6.730 4 0.155 6 0.368 7 0.003 5 105 2 120 39 2 077 20 2 023 17 M
      9 45.7 214.7 76.0 2.83 0.122 0 0.002 6 6.160 3 0.129 4 0.364 9 0.002 7 99 1 987 38 1 999 18 2 005 13 M
      10 116.0 237.1 199.4 1.19 0.158 2 0.002 5 10.089 2 0.161 0 0.459 8 0.003 0 100 2 437 28 2 443 15 2 439 13 G D
      11 18.9 77.2 31.2 2.47 0.129 1 0.004 6 6.805 4 0.239 1 0.382 7 0.005 3 100 2 087 63 2 086 31 2 089 25 M
      12 142.1 429.7 414.9 1.04 0.143 9 0.003 1 5.743 5 0.119 4 0.288 8 0.004 2 139 2 276 36 1 938 18 1 636 21 M
      13 113.3 103.6 320.5 0.32 0.135 1 0.002 6 6.393 7 0.122 3 0.341 6 0.002 9 114 2 165 34 2 031 17 1 894 14 M
      14 143.4 71.2 362.1 0.20 0.142 1 0.002 8 7.640 2 0.150 6 0.387 8 0.003 0 107 2 253 33 2 190 18 2 113 14 M
      15 118.7 200.2 222.8 0.90 0.165 9 0.002 8 9.864 1 0.163 5 0.429 3 0.002 7 109 2 517 28 2 422 15 2 302 12 M
      16 40.8 29.2 70.5 0.41 0.190 7 0.003 6 14.133 6 0.306 3 0.535 3 0.006 8 99 2 750 31 2 759 21 2 764 29 G D
      17 54.0 278.4 85.8 3.24 0.118 9 0.002 5 5.738 4 0.133 3 0.348 3 0.003 9 101 1 940 37 1 937 20 1 927 19 G G1
      18 24.7 91.4 30.9 2.96 0.159 2 0.006 2 10.235 9 0.386 9 0.466 3 0.004 8 99 2 447 71 2 456 35 2 467 21 M
      19 170.1 119.4 383.0 0.31 0.144 6 0.002 6 8.428 5 0.155 5 0.421 1 0.002 8 101 2 283 31 2 278 17 2 266 13 G G1
      20 107.2 141.5 226.0 0.63 0.148 6 0.002 5 8.817 2 0.170 7 0.428 0 0.004 2 101 2 329 28 2 319 18 2 297 19 G D
      21 190.8 340.4 430.3 0.79 0.187 9 0.003 5 9.498 4 0.168 4 0.365 1 0.003 0 136 2 724 30 2 387 16 2 006 14 G D
      22 160.0 508.7 951.3 0.53 0.101 0 0.001 7 2.141 6 0.038 3 0.152 9 0.001 2 179 1 643 31 1 162 12 917 6 M
      23 68.3 155.4 258.3 0.60 0.106 4 0.002 4 3.557 1 0.087 1 0.241 2 0.003 1 125 1 739 46 1 540 19 1 393 16 M
      24 22.3 16.3 59.4 0.27 0.119 2 0.002 7 6.041 0 0.138 2 0.366 1 0.003 6 97 1 946 41 1 982 20 2 011 17 M
      25 118.0 118.3 268.6 0.44 0.135 4 0.002 5 7.649 4 0.147 8 0.407 0 0.003 6 99 2 169 37 2 191 17 2 201 17 G D
      26 11.9 10.3 32.9 0.31 0.118 5 0.003 3 5.690 5 0.151 8 0.349 1 0.003 9 101 1 944 50 1 930 23 1 930 19 M
      27 37.3 33.5 85.8 0.39 0.130 5 0.002 4 7.330 1 0.135 3 0.405 5 0.003 3 96 2 106 33 2 152 16 2 194 15 M
      28 90.2 73.1 224.9 0.33 0.131 2 0.002 3 7.093 3 0.128 7 0.389 9 0.003 5 100 2 114 30 2 123 16 2 122 16 M
      29 95.7 297.0 195.9 1.52 0.116 7 0.002 2 5.947 1 0.112 9 0.367 4 0.002 9 95 1 907 34 1 968 17 2 017 13 M
      30 137.0 269.4 316.5 0.85 0.153 0 0.003 3 8.142 8 0.184 4 0.383 3 0.003 4 114 2 379 37 2 247 20 2 092 16 M
      31 75.7 61.5 207.6 0.30 0.118 2 0.002 4 5.885 6 0.120 3 0.358 8 0.002 7 98 1 929 35 1 959 18 1 976 13 M
      32 117.8 251.0 190.4 1.32 0.161 2 0.002 9 10.617 6 0.195 3 0.475 1 0.004 2 98 2 468 29 2 490 17 2 506 18 G D
      33 53.4 84.5 148.8 0.57 0.119 9 0.002 2 5.822 7 0.110 0 0.350 6 0.003 3 101 1 954 33 1 950 16 1 937 16 M
      34 131.0 413.7 457.8 0.90 0.138 6 0.002 6 4.792 2 0.091 2 0.249 4 0.002 2 154 2 210 33 1 784 16 1 436 11 G D
      35 85.3 212.2 187.1 1.13 0.125 4 0.002 6 6.354 3 0.129 3 0.366 0 0.002 9 101 2 035 36 2 026 18 2 010 14 M
      36 108.1 290.6 234.9 1.24 0.121 3 0.002 6 6.131 3 0.131 7 0.364 6 0.003 0 99 1 976 38 1 995 19 2 004 14 M
      37 74.9 93.0 182.3 0.51 0.125 9 0.002 8 6.645 2 0.147 1 0.380 9 0.003 2 98 2 043 39 2 065 20 2 080 15 M
      38 163.9 320.0 443.2 0.72 0.137 4 0.002 8 6.356 6 0.131 6 0.333 8 0.003 2 118 2 195 35 2 026 18 1 857 15 M
      39 64.2 88.1 129.1 0.68 0.145 0 0.002 7 8.806 5 0.165 2 0.440 3 0.003 7 97 2 287 33 2 318 17 2 352 16 G D
      40 51.3 228.7 110.9 2.06 0.121 5 0.003 2 5.072 9 0.139 2 0.301 3 0.003 9 117 1 989 47 1 832 23 1 698 19 M
      41 93.0 185.6 242.5 0.77 0.141 1 0.003 0 6.600 6 0.136 5 0.338 0 0.004 1 119 2 243 36 2 059 18 1 877 20 G D
      42 66.4 70.6 149.0 0.47 0.137 3 0.002 5 7.893 6 0.143 8 0.415 3 0.003 9 98 2 194 32 2 219 16 2 239 18 G G1
      43 94.1 241.0 206.8 1.17 0.116 5 0.002 1 5.960 0 0.107 6 0.369 2 0.003 5 94 1 906 32 1 970 16 2 025 16 M
      44 140.9 374.1 703.6 0.53 0.109 6 0.001 8 2.867 2 0.047 7 0.188 8 0.001 7 161 1 792 29 1 373 13 1 115 9 G G2
      45 47.2 34.2 112.6 0.30 0.129 3 0.002 3 7.294 4 0.129 3 0.407 1 0.003 3 95 2 100 31 2 148 16 2 202 15 M
      46 76.0 156.5 200.9 0.78 0.118 3 0.002 0 5.614 3 0.092 0 0.342 9 0.002 7 102 1 931 31 1 918 14 1 901 13 G D
      47 114.3 282.3 412.4 0.68 0.125 5 0.002 5 4.459 7 0.087 8 0.256 3 0.002 4 138 2 037 41 1 724 16 1 471 12 M
      48 104.2 177.3 217.0 0.82 0.141 6 0.002 6 8.081 2 0.149 8 0.411 5 0.003 2 101 2 247 33 2 240 17 2 222 14 G D
      49 123.8 133.3 248.5 0.54 0.148 8 0.002 9 9.145 0 0.166 4 0.444 8 0.004 6 98 2 332 33 2 353 17 2 372 21 G D
      50 129.6 768.2 593.3 1.29 0.121 4 0.002 4 2.860 5 0.053 1 0.170 2 0.001 5 195 1 977 35 1 372 14 1 013 8 M
      51 68.5 95.0 131.4 0.72 0.151 0 0.002 4 9.473 0 0.156 3 0.452 5 0.003 7 98 2 357 28 2 385 15 2 406 16 G D
      52 97.9 210.4 169.5 1.24 0.149 1 0.002 6 9.158 5 0.152 6 0.443 5 0.002 8 99 2 336 30 2 354 15 2 366 12 M
      53 62.2 52.1 161.3 0.32 0.123 1 0.002 2 6.363 2 0.107 5 0.373 2 0.002 6 98 2 002 30 2 027 15 2 045 12 M
      54 39.9 30.9 111.1 0.28 0.117 7 0.002 2 5.786 5 0.107 8 0.355 1 0.002 8 98 1 921 34 1 944 16 1 959 14 M
      55 77.0 123.7 195.1 0.63 0.112 2 0.002 0 5.503 7 0.102 4 0.354 7 0.002 6 94 1 836 33 1 901 16 1 957 13 M
      56 156.3 39.7 480.2 0.08 0.115 1 0.001 9 5.298 5 0.088 6 0.332 6 0.002 5 102 1 883 35 1 869 14 1 851 12 M
      57 35.3 144.5 68.4 2.11 0.112 9 0.002 3 5.329 0 0.108 9 0.342 0 0.002 9 98 1 856 37 1 874 17 1 896 14 M
      58 94.0 424.0 181.8 2.33 0.118 8 0.002 0 5.586 5 0.096 4 0.340 5 0.003 0 103 1 939 31 1 914 15 1 889 15 G G1
      59 123.4 253.9 292.3 0.87 0.116 8 0.001 8 5.845 4 0.096 7 0.361 7 0.003 0 96 1 907 28 1 953 14 1 990 14 M
      60 61.5 351.5 204.9 1.72 0.123 1 0.003 0 3.982 4 0.097 0 0.234 0 0.002 5 148 2 002 43 1 631 20 1 355 13 M
      61 77.2 93.6 146.5 0.64 0.160 1 0.003 1 9.512 0 0.193 0 0.429 0 0.003 6 107 2 457 38 2 389 19 2 301 16 G D
      62 122.1 137.2 301.9 0.45 0.129 1 0.002 0 6.551 8 0.108 6 0.366 2 0.002 5 104 2 087 27 2 053 15 2 011 12 G G1
      63 48.4 127.2 108.6 1.17 0.117 8 0.002 0 5.747 7 0.100 3 0.352 8 0.002 9 99 1 924 31 1 939 15 1 948 14 M
      64 87.8 168.1 221.0 0.76 0.119 4 0.001 9 5.596 8 0.090 7 0.338 7 0.002 4 104 1 948 29 1 916 14 1 880 12 M
      65 138.3 216.2 246.8 0.88 0.156 3 0.002 6 9.941 5 0.163 6 0.459 5 0.003 4 99 2 416 28 2 429 15 2 437 15 G D
      66 162.5 269.7 532.8 0.51 0.129 8 0.002 4 4.879 3 0.087 5 0.271 6 0.001 8 135 2 095 33 1 799 15 1 549 9 G G1
      67 48.1 84.7 94.0 0.90 0.148 0 0.002 9 8.606 4 0.170 5 0.419 9 0.003 6 103 2 324 33 2 297 18 2 260 16 G D
      68 126.6 154.9 265.9 0.58 0.147 4 0.002 3 8.572 9 0.139 0 0.419 6 0.003 1 103 2 316 27 2 294 15 2 259 14 M
      69 62.8 96.9 154.4 0.63 0.147 3 0.002 7 7.228 7 0.132 6 0.355 0 0.003 7 118 2 315 31 2 140 16 1 958 17 G D
      70 175.3 330.8 784.5 0.42 0.122 1 0.002 1 3.513 7 0.058 9 0.207 6 0.001 5 163 1 987 30 1 530 13 1 216 8 G G1
      71 73.7 200.9 151.2 1.33 0.125 5 0.002 2 6.497 7 0.113 5 0.373 7 0.002 7 99 2 036 36 2 046 15 2 047 13 M
      72 76.6 217.9 158.2 1.38 0.122 1 0.002 3 6.226 3 0.119 4 0.367 8 0.002 7 98 1 988 34 2 008 17 2 019 13 M
      73 37.6 134.0 73.3 1.83 0.121 9 0.002 8 6.067 3 0.136 7 0.360 1 0.003 1 100 1 984 41 1 986 20 1 983 15 M
      74 57.2 82.9 145.9 0.57 0.121 8 0.002 2 5.988 9 0.109 7 0.355 1 0.002 7 101 1 983 33 1 974 16 1 959 13 M
      75 128.1 196.0 535.5 0.37 0.121 5 0.002 1 4.044 3 0.082 3 0.240 3 0.002 9 143 1 989 31 1 643 17 1 388 15 M
      76 85.7 184.3 211.0 0.87 0.124 9 0.001 9 6.009 7 0.093 0 0.347 8 0.002 5 105 2 028 31 1 977 13 1 924 12 G G1
      77 64.9 154.3 153.3 1.01 0.116 5 0.001 9 5.629 0 0.092 4 0.349 7 0.002 7 98 1 903 29 1 921 14 1 933 13 M
      78 92.1 268.7 188.9 1.42 0.122 5 0.002 2 6.277 9 0.116 1 0.370 5 0.002 8 98 1 992 36 2 015 16 2 032 13 M
      79 155.1 427.2 449.1 0.95 0.137 1 0.002 3 5.504 6 0.098 2 0.290 4 0.002 6 133 2 191 29 1 901 15 1 644 13 G D
      80 102.5 131.7 215.4 0.61 0.145 8 0.002 2 8.531 7 0.139 5 0.423 1 0.003 5 101 2 298 26 2 289 15 2 275 16 G G1
      81 94.8 212.5 218.1 0.97 0.120 6 0.001 9 6.075 0 0.098 2 0.364 1 0.002 7 98 1 966 28 1 987 14 2 001 13 M
      82 17.6 71.0 32.1 2.21 0.118 9 0.003 2 5.987 2 0.163 6 0.365 3 0.004 5 97 1 940 48 1 974 24 2 007 21 M
      83 60.8 216.4 112.7 1.92 0.121 6 0.002 2 6.350 9 0.121 4 0.377 2 0.003 0 96 1 979 33 2 026 17 2 063 14 M
      84 36.5 111.7 74.1 1.51 0.123 9 0.002 6 6.347 6 0.134 1 0.370 7 0.003 2 99 2 013 37 2 025 19 2 032 15 M
      85 70.0 108.8 176.4 0.62 0.121 4 0.002 3 6.223 9 0.122 2 0.369 6 0.003 1 98 1 977 33 2 008 17 2 028 14 M
      86 39.6 106.8 86.4 1.24 0.117 1 0.002 3 5.828 7 0.118 6 0.359 6 0.003 2 97 1 913 35 1 951 18 1 980 15 M
      87 143.4 295.8 322.6 0.92 0.120 1 0.001 9 6.289 1 0.097 0 0.378 2 0.002 3 95 1 958 29 2 017 14 2 068 11 G G1
      88 21.6 81.1 40.0 2.03 0.121 7 0.003 0 6.095 7 0.149 3 0.363 7 0.004 1 99 1 981 45 1 990 21 2 000 20 G D
      89 97.3 39.9 260.2 0.15 0.116 9 0.001 9 6.134 5 0.100 1 0.379 0 0.002 8 92 1 910 30 1 995 14 2 072 13 M
      90 46.6 73.4 115.5 0.64 0.119 7 0.002 4 5.985 9 0.123 6 0.360 9 0.003 1 98 1 954 35 1 974 18 1 987 15 M
      91 107.1 143.5 215.7 0.67 0.183 2 0.003 4 10.522 4 0.195 7 0.414 8 0.003 8 120 2 683 36 2 482 17 2 237 17 M
      92 89.8 78.5 186.9 0.42 0.150 1 0.002 4 9.147 9 0.155 2 0.440 0 0.003 7 100 2 347 27 2 353 16 2 351 17 M
      93 147.7 238.1 320.3 0.74 0.144 7 0.002 6 7.963 6 0.137 3 0.397 5 0.003 7 106 2 284 32 2 227 16 2 158 17 G D
      94 143.4 294.8 246.4 1.20 0.152 5 0.002 3 9.505 0 0.150 8 0.449 8 0.003 6 99 2 376 25 2 388 15 2 394 16 G G1
      95 132.1 284.4 336.1 0.85 0.117 7 0.002 0 5.465 0 0.092 3 0.335 4 0.002 6 103 1 921 30 1 895 14 1 864 13 M
      96 34.4 123.2 69.3 1.78 0.120 2 0.002 6 5.886 9 0.126 5 0.354 3 0.003 5 100 1 961 38 1 959 19 1 955 17 M
      97 56.4 154.7 144.8 1.07 0.117 7 0.002 1 5.303 8 0.096 9 0.325 4 0.002 3 106 1 922 33 1 869 16 1 816 11 M
      98 63.5 135.6 160.8 0.84 0.116 1 0.002 0 5.475 7 0.094 0 0.340 8 0.002 4 100 1 898 31 1 897 15 1 891 11 M
      99 102.6 148.5 258.3 0.57 0.135 5 0.002 7 6.810 5 0.143 8 0.362 7 0.003 4 109 2 170 35 2 087 19 1 995 16 G D
      100 58.4 75.3 156.6 0.48 0.117 1 0.002 2 5.660 9 0.109 0 0.348 9 0.002 7 99 1 913 33 1 925 17 1 930 13 M
      101 60.2 209.2 120.2 1.74 0.118 5 0.002 1 5.859 3 0.105 9 0.357 3 0.002 9 99 1 944 31 1 955 16 1 969 14 M
      102 64.0 153.8 142.8 1.08 0.122 1 0.002 3 6.082 4 0.115 3 0.360 6 0.003 6 100 1 988 33 1 988 17 1 985 17 G D
      103 94.2 129.2 225.6 0.57 0.118 3 0.002 0 6.229 4 0.110 5 0.380 1 0.002 7 93 1 931 31 2 009 16 2 077 13 M
      104 18.8 34.0 46.5 0.73 0.116 2 0.002 5 5.686 5 0.120 0 0.355 1 0.003 6 97 1 899 38 1 929 18 1 959 17 M
      105 111.3 207.9 280.9 0.74 0.115 1 0.001 8 5.514 7 0.087 9 0.346 4 0.002 7 98 1 883 28 1 903 14 1 917 13 M
      106 60.4 160.0 137.0 1.17 0.116 9 0.002 3 5.683 2 0.108 0 0.351 9 0.003 3 98 1 910 36 1 929 16 1 944 16 M
      107 40.6 114.4 86.3 1.33 0.119 4 0.002 5 5.971 6 0.123 7 0.362 0 0.003 2 98 1 947 37 1 972 18 1 992 15 M
      108 88.0 135.6 221.8 0.61 0.120 2 0.002 1 5.912 5 0.102 4 0.355 3 0.002 9 100 1 961 31 1 963 15 1 960 14 G G1
      109 435.7 262.3 1316.0 0.20 0.249 9 0.003 9 7.440 6 0.123 8 0.215 1 0.001 8 253 3 184 25 2 166 15 1 256 10 M
      110 97.3 127.1 289.0 0.44 0.120 4 0.002 2 5.211 5 0.097 5 0.313 5 0.003 6 112 1 961 33 1 855 16 1 758 18 G D
      111 40.2 37.0 72.1 0.51 0.166 4 0.002 7 11.230 3 0.178 5 0.488 6 0.003 8 98 2 522 28 2 542 15 2 565 16 G D
        注:M.变质成因;G.岩浆成因;D.辉绿石;G1.花岗岩类(SiO2含量<65%);G2.花岗岩类(SiO2含量为70%~75%).
      下载: 导出CSV

      表  2  锆石标样91500微量元素数据与前人数据对比

      Table  2.   Trace elements data (10-6) for the 91500 zircon standard compared with previously reported data

      微量元素 本次研究(n=42) Belousova et al.(2002)(n=4) Wiedenbeck et al.(1995)
      Y 145.5±9.5 147±22
      La 0.04±0.03 <0.08±0.05
      Ce 2.6±0.2 2.5±0.5 2.0±0.1 n=4, IP
      Pr 0.03±0.02 <0.05±0.05
      Nd 0.315±0.275 <0.35±0.07 0.4 n=1, IP
      Sm 0.395±0.275 0.41±0.2 0.3 n=1, IP
      Eu 0.26±0.12 0.37±0.17 0.26±0.07 n=6, IP/NAA
      Gd 2.365±0.455 2.1±0.35 1.93±0.10 n=4, IP
      Dy 11.8±1.0 12±2.1 8.0±1.4 n=4, IP
      Ho 4.85±0.45 4.9±0.7
      Er 28.7±2.8 26±3.6 20.4±0.8 n=4, IP
      Yb 69.3±4.1 66±7.3 57.4±16.7 n=6, IP/NAA
      Lu 13.8±1.0 14±1.9 12.4±0.9 n=2, NAA
      Th 30.6±2.7 31±4.9 34.6±6.9 n=4, ID/NAA
      U 82.85±5.15 88±15 81.2±4.5 n=11, ID
      Hf(%) 0.64±0.03 0.64±0.09 0.59±0.01 n=18, PMP
      0.73±0.05 n=16, IP
      0.59±0.03 n=4, ID
      0.56±0.01 n=99, EMP
      下载: 导出CSV
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    出版历程
    • 收稿日期:  2011-09-03
    • 网络出版日期:  2021-11-15
    • 刊出日期:  2012-05-01

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