In situ U-Pb dating and trace element determination of standard zircons by LA-ICP-MS
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摘要:
利用长安大学成矿作用及其动力学实验室Agilent 7700X四极杆等离子体质谱（ICP-MS）和Photo Machines AnalyteExcite 193nm激光，在激光频率为5Hz，束斑直径为35μm条件下，对91500、GJ-1、Plešovice和Qinghu 4个标准锆石进行了原位微区U-Pb同位素和微量元素测定。结果显示，91500标准锆石20个测试点的206Pb/238U年龄范围为1059~1070Ma，206Pb/238U年龄加权平均值为1063.8±6.6Ma；GJ-1标准锆石28个测试点的206Pb/238U年龄范围为601~610Ma，206Pb/238U年龄加权平均值为605.4±3.0Ma；Plešovice标准锆石28个测试点的206Pb/238U年龄范围为336~341Ma，206Pb/238U年龄加权平均值为338.8±1.4Ma；Qinghu标准锆石40个测试点的206Pb/238U年龄范围为158~165Ma，206Pb/238U年龄加权平均值为159.9±0.7Ma。上述结果表明，91500、GJ-1、Plešovice和Qinghu 4个标准锆石的206Pb/238U年龄都在误差范围内，且年龄加权平均值与前人报道的年龄在误差范围内一致。同时，4个标准锆石的微量元素结果基本落在前人文献报道的范围内。从4个标准锆石的稀土元素球粒陨石标准化曲线可以看出，稀土元素的相对含量较准确。以上结果表明，建立的测试方法实现了对锆石原位微区U-Pb定年及微量元素的同时测定，分析数据结果准确、可靠。
Abstract:The age and trace elements of 91500, GJ-1, Plešovice and Qinghu standard zircons were analyzed simultaneously by using Agilent 7700X inductively coupled plasma-mass spectrometry (ICP-MS) and Photo Machines Analyte Excite 193nm laser ablation at the laboratory of mineralization and dynamics, Chang'an University, with the laser frequency being 5Hz and laser ablation spot size being 35μm. According to the results obtained, the 206Pb/238U age range of 20 test points of 91500 zircon is between 1059Ma and 1070Ma, and its weighted average of 206Pb/238U age is 1063.8±6.6Ma; the 206Pb/238U age range of 28 test points of GJ-1 zircon is between 601Ma and 610Ma, and its weighted average of 206Pb/238U age is 605.4±3.0Ma; the 206Pb/238U age range of 28 test points of Plešovice zircon is between 336Ma and 341Ma, and its weighted average of 206Pb/238U age is 338.8±1.4Ma; the 206Pb/238U age range of 40 test points of Qinghu zircon is between 158Ma and 165Ma, and its weighted average of 206Pb/238U age is 159.9±0.7Ma. The results show that the 206Pb/238U age ranges of four standard zircons 91500, GJ-1, Plešovice and Qinghu are in accordance with the recommended values within reasonable error range, and the weighted average age shows an excellent agreement with the previously reported data. All the trace element compositions of four standard zircons fall into the range of the literature available. Chondritenormalized REE distribution curves of these standard zircons show that the relative content of rare earth elements obtained is accurate. The above results show that in situ U-Pb dating and trace element determination of zircon can be carried out by using the method established in this study, and the results are accurate and reliable.
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Keywords:
- LA-ICP-MS /
- standard zircons /
- U-Pb dating /
- trace element
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致谢: 感谢中国地质调查局西安地质调查中心李艳广和靳梦琪工程师提供的GJ-1和Plešovice标准锆石及在实验方法建立阶段给予的技术指导；感谢西北大学大陆动力学国家重点实验室包志安和张红工程师提供了Qinghu标准锆石；感谢审稿专家对本文提出的宝贵修改意见。
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图 1 91500、GJ-1、Plešovice、Qinghu标准锆石U-Pb谐和图和206Pb/238U年龄图
Figure 1. U-Pb concordia diagrams and 206Pb/238U ages of 91500, GJ-1, Plešovice and Qinghu standard zircons
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图 2 91500、GJ-1、Plešovice和Qinghu标准锆石球粒陨石标准化稀土元素配分模式图
（球粒陨石标准化数据据参考文献[35]）
Figure 2. Chondrite-normalized REE patterns for 91500, GJ-1, Plešovice and Qinghu standard zircons
表 1 LA-ICP-MS工作参数
Table 1 LA-ICP-MS operation conditions
参数 取值 参数 取值 ICP-MS工作参数 仪器型号 Agilent 7700X 锥 镍锥 RF射频功率 1450W 灵敏度 238U信号：＞7x108cps 冷却气流速 15L/min 矩管采样深度 4.5~5mm 载气(氩)流量 0.8~0.9L/min 积分时间 40s 激光剥蚀系统参数 仪器型号 Analyte Excite 193 束斑直径 35 pm 激光能量密度 5.9J/cm2 频率 5Hz 载气(氦)流量 0.8L/min 
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表 2 标准锆石LA-ICP-MS同位素比值和年龄测定结果
Table 2 LA-ICP-MS results of isotope ratios and ages for standard zircons
测点 元素含量/10-6 同位素比值 年龄/Ma 谐和度 232Th 238U 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ 91500标准锆石 91500-1 25.3 70.3 0.07329 0.00321 1.82381 0.08597 0.17942 0.00263 1022 89 1054 31 1064 14 99% 91500-2 24.8 69.1 0.07473 0.00323 1.83183 0.08813 0.17938 0.00378 1061 87 1057 32 1064 21 99% 91500-3 24.6 68.9 0.07511 0.00309 1.85571 0.07487 0.17902 0.00229 1072 83 1065 27 1062 13 99% 91500-4 25.1 69.8 0.07451 0.00405 1.85035 0.09534 0.18059 0.00322 1055 109 1064 34 1070 18 99% 91500-5 24.4 68.6 0.07448 0.00307 1.82577 0.074 0.1785 0.00277 1055 88 1055 27 1059 15 99% 91500-6 24.8 69.9 0.07523 0.00291 1.85871 0.06795 0.1803 0.0031 1076 78 1067 24 1069 17 99% 91500-7 24.3 68.2 0.07403 0.0029 1.82606 0.07295 0.17853 0.00264 1043 80 1055 26 1059 14 99% 91500-8 25 68.5 0.07567 0.00392 1.85821 0.09299 0.17903 0.00294 1087 99 1066 33 1062 16 99% 91500-9 24.6 69.9 0.0739 0.00304 1.81137 0.06666 0.17882 0.00298 1039 83 1050 24 1061 16 98% 91500-10 24.5 69.7 0.07351 0.00279 1.82347 0.07066 0.17981 0.00318 1028 76 1054 25 1066 17 98% 91500-11 23.7 67.5 0.0742 0.00413 1.8367 0.1023 0.17953 0.0033 1056 112 1059 37 1064 18 99% 91500-12 25.8 71.2 0.0741 0.00298 1.83191 0.06441 0.17993 0.00269 1044 81 1057 23 1067 15 99% 91500-13 25 70.1 0.0751 0.00243 1.86925 0.06479 0.17952 0.00234 1072 69 1070 23 1064 13 99% 91500-14 24.2 70.2 0.07464 0.00296 1.85518 0.07698 0.17951 0.00235 1059 80 1065 27 1064 13 99% 91500-15 24.9 70.3 0.07524 0.00413 1.85041 0.08814 0.18013 0.00347 1076 110 1064 31 1068 19 99% 91500-16 26 71.9 0.07411 0.00283 1.8248 0.07056 0.1792 0.00303 1056 78 1054 25 1063 17 99% 91500-17 25.4 71.4 0.07453 0.00237 1.84508 0.05981 0.17979 0.00234 1057 65 1062 21 1066 13 99% 91500-18 24.5 69 0.07541 0.00306 1.85062 0.06995 0.17926 0.00271 1080 81 1064 25 1063 15 99% 91500-19 24.3 68.1 0.07426 0.0028 1.82939 0.06614 0.17949 0.00238 1050 76 1056 24 1064 13 99% 91500-20 24.7 69.1 0.07435 0.00277 1.83487 0.06805 0.17932 0.00267 1051 74 1058 24 1063 15 99% GJ-1标准锆石 GJ-1 8.92 328 0.058 0.00157 0.79518 0.02273 0.09913 0.00163 532 55 594 13 609 10 97% GJ-2 9.14 329 0.05722 0.00172 0.7842 0.02513 0.09897 0.00154 502 67 588 14 608 9 96% GJ-3 9.09 323 0.0602 0.00153 0.82307 0.02445 0.09849 0.00137 609 56 610 14 606 8 99% GJ-4 9.11 318 0.05767 0.00174 0.79 0.02655 0.09878 0.00135 517 67 591 15 607 8 97% GJ-5 9.01 317 0.05954 0.00173 0.81258 0.02392 0.09887 0.00144 587 63 604 13 608 8 99% GJ-6 9 316 0.05894 0.00176 0.80358 0.02498 0.09872 0.00141 565 65 599 14 607 8 98% GJ-7 9.22 314 0.05687 0.00163 0.77088 0.02378 0.09802 0.00137 487 65 580 14 603 8 96% GJ-8 9.47 324 0.05944 0.00203 0.81176 0.02871 0.09884 0.00149 583 76 603 16 608 9 99% GJ-9 9.17 320 0.06009 0.00168 0.81767 0.02335 0.0985 0.00143 606 59 607 13 606 8 99% GJ-10 9.01 320 0.05736 0.00147 0.78399 0.02283 0.09871 0.00165 506 53 588 13 607 10 96% GJ-11 9.44 320 0.05812 0.00155 0.79193 0.02366 0.09824 0.0014 600 57 592 13 604 8 98% GJ-12 9.27 319 0.05644 0.00157 0.77029 0.02026 0.09922 0.00156 478 63 580 12 610 9 94% GJ-13 8.99 338 0.05976 0.0017 0.81283 0.02544 0.09811 0.00144 594 61 604 14 603 8 99% GJ-14 8.9 327 0.05753 0.00159 0.78869 0.02285 0.09903 0.00141 522 61 590 13 609 8 96% GJ-15 9.16 338 0.05907 0.00175 0.80988 0.02422 0.09922 0.00153 569 65 602 14 610 9 98% GJ-16 9.23 329 0.05794 0.00174 0.79253 0.02547 0.09859 0.00143 528 65 593 14 606 8 97% GJ-17 8.8 329 0.05958 0.0018 0.80902 0.02484 0.09818 0.00132 587 67 602 14 604 8 99% GJ-18 9.03 333 0.06016 0.00165 0.81255 0.02192 0.09775 0.00127 609 92 604 12 601 7 99% GJ-19 8.96 330 0.05838 0.00164 0.79982 0.02222 0.09917 0.00128 543 61 597 13 610 8 97% GJ-20 8.98 327 0.06066 0.00179 0.82013 0.02384 0.09792 0.00132 628 69 608 13 602 8 99% GJ-21 9.02 321 0.06195 0.00196 0.83682 0.02641 0.09772 0.00129 672 64 617 15 601 8 97% GJ-22 8.83 322 0.05946 0.00191 0.81685 0.03037 0.09847 0.00149 583 66 606 17 605 9 99% GJ-23 9.07 326 0.05605 0.00187 0.75618 0.02469 0.09781 0.00139 454 69 572 14 602 8 94% GJ-24 8.95 317 0.0598 0.00177 0.81024 0.02323 0.09812 0.00115 596 64 603 13 603 7 99% GJ-25 8.9 329 0.05979 0.00185 0.81653 0.02586 0.09878 0.00143 594 67 606 14 607 8 99% GJ-26 9.07 315 0.05955 0.00171 0.80875 0.02275 0.09836 0.00107 587 63 602 13 605 6 99% GJ-27 9.15 313 0.05956 0.00168 0.80663 0.02263 0.09809 0.00113 587 66 601 13 603 7 99% GJ-28 8.68 320 0.0566 0.00171 0.77265 0.02597 0.09863 0.00147 476 67 581 15 606 9 95% Plešovice标准错石 Plešovice-1 66.4 661 0.05309 0.00161 0.39617 0.01344 0.05381 0.00081 332 69 339 10 338 5 99% Plešovice-2 65.9 635 0.05086 0.0015 0.37855 0.01165 0.0538 0.00068 235 69 326 9 338 4 96% Plešovice-3 63.2 628 0.05262 0.00139 0.39479 0.01102 0.05421 0.00063 322 61 338 8 340 4 99% Plešovice-4 61 646 0.05343 0.00144 0.39848 0.01101 0.05399 0.00067 346 61 341 8 339 4 99% Plešovice-5 63.1 660 0.05328 0.00134 0.39668 0.01068 0.05378 0.00061 343 57 339 8 338 4 99% Plešovice-6 70.5 758 0.0495 0.00172 0.36753 0.01206 0.05389 0.00067 172 81 318 9 338 4 93% Plešovice-7 72.4 776 0.05207 0.00156 0.39021 0.01179 0.05422 0.00066 287 69 335 9 340 4 98% Plešovice-8 65.7 681 0.05395 0.0017 0.40181 0.013 0.0538 0.00063 369 70 343 9 338 4 98% Plešovice-9 67.4 699 0.05006 0.0016 0.37236 0.01223 0.05374 0.00059 198 106 321 9 337 4 95% Plešovice-10 66.5 663 0.05365 0.00151 0.4017 0.01144 0.05428 0.00076 367 60 343 8 341 5 99% Plešovice-11 62.3 645 0.0537 0.00157 0.40339 0.01242 0.05423 0.00061 367 67 344 9 340 4 98% Plešovice-12 65.6 705 0.05269 0.00163 0.39378 0.01248 0.05396 0.00056 322 70 337 9 339 3 99% Plešovice-13 67.7 754 0.0514 0.00142 0.38676 0.01109 0.05431 0.00058 257 63 332 8 341 4 97% Plešovice-14 62.8 667 0.0526 0.00136 0.39362 0.01047 0.05406 0.00059 322 59 337 8 339 4 99% Plešovice-15 78.7 809 0.05218 0.00145 0.38862 0.01106 0.05386 0.00069 295 63 333 8 338 4 98% Plešovice-16 77.7 799 0.05304 0.0013 0.39212 0.00944 0.05351 0.00058 332 56 336 7 336 4 99% Plešovice-17 74.3 743 0.05221 0.00135 0.38833 0.01053 0.05369 0.00054 295 59 333 8 337 3 98% Plešovice-18 64.7 690 0.05221 0.00152 0.38686 0.01095 0.05374 0.0006 295 67 332 8 337 4 98% Plešovice-19 72.7 794 0.05459 0.00156 0.40746 0.01181 0.054 0.00056 394 63 347 9 339 3 97% Plešovice-20 62.8 631 0.05148 0.00142 0.3819 0.01011 0.05378 0.00053 261 63 328 7 338 3 97% Plešovice-21 70.7 702 0.05289 0.0014 0.39384 0.0104 0.05395 0.00057 324 61 337 8 339 3 99% Plešovice-22 68.7 684 0.05313 0.00149 0.39686 0.01139 0.05407 0.0006 345 32 339 8 339 4 99% Plešovice-23 62.6 645 0.05096 0.00144 0.38059 0.01087 0.05405 0.00055 239 65 327 8 339 3 96% Plešovice-24 80.8 821 0.05275 0.00143 0.39273 0.0106 0.05399 0.00063 317 68 336 8 339 4 99% Plešovice-25 79.9 803 0.05291 0.00135 0.39573 0.01035 0.05412 0.00052 324 62 339 8 340 3 99% Plešovice-26 79.1 806 0.05301 0.00125 0.39736 0.00994 0.05418 0.00053 328 56 340 7 340 3 99% Plešovice-27 80.3 811 0.0516 0.00123 0.38657 0.00936 0.05422 0.00053 333 54 332 7 340 3 97% Plešovice-28 80.1 814 0.05121 0.00148 0.37969 0.0105 0.05377 0.00058 250 67 327 8 338 4 96% Qinghu标准错石 QH-1 562 1308 0.04859 0.00162 0.17057 0.00647 0.02524 0.00041 128 75 160 6 161 3 99% QH-2 318 645 0.04991 0.0022 0.17228 0.00707 0.02514 0.0004 191 108 161 6 160 3 99% QH-3 545 1171 0.04719 0.00161 0.16368 0.00587 0.02503 0.00035 58 81 154 5 159 2 96% QH-4 460 981 0.04819 0.00169 0.1692 0.00622 0.02542 0.00041 109 79 159 5 162 3 98% QH-5 626 1426 0.04688 0.00179 0.16364 0.00663 0.02516 0.00037 43 89 154 6 160 2 95% QH-6 697 1038 0.04915 0.00172 0.16842 0.00589 0.02488 0.00044 154 79 158 5 158 3 99% QH-7 419 817 0.04794 0.00214 0.16741 0.00764 0.02526 0.0004 98 100 157 7 161 2 97% QH-8 735 1808 0.04896 0.00148 0.17142 0.00608 0.0252 0.00033 146 72 161 5 160 2 99% QH-9 477 819 0.04754 0.00166 0.16605 0.00622 0.0252 0.00036 76 91 156 5 160 2 97% QH-10 962 1589 0.05234 0.00146 0.18186 0.0055 0.02508 0.00032 302 63 170 5 160 2 93% QH-11 438 939 0.04741 0.00178 0.1652 0.00645 0.02506 0.0003 78 89 155 6 160 2 97% QH-12 709 1328 0.04929 0.00193 0.16835 0.00649 0.02474 0.00045 161 86 158 6 158 3 99% QH-13 749 1508 0.04894 0.00148 0.169 0.00631 0.02495 0.00058 146 70 159 5 159 4 99% QH-14 631 1330 0.05026 0.00182 0.17545 0.00678 0.0252 0.00035 206 83 164 6 160 2 97% QH-15 868 1718 0.04852 0.00159 0.16744 0.00603 0.02493 0.00035 124 71 157 5 159 2 99% QH-16 535 1177 0.05034 0.0017 0.17538 0.00591 0.02533 0.00037 209 78 164 5 161 2 98% QH-17 538 1070 0.04948 0.00154 0.17313 0.00566 0.02541 0.0004 172 74 162 5 162 2 99% QH-18 1047 1786 0.0478 0.00143 0.16576 0.00543 0.02511 0.00041 100 75 156 5 160 3 97% QH-19 576 1227 0.04756 0.00183 0.16447 0.00612 0.0252 0.0004 76 89 155 5 160 3 96% QH-20 506 1037 0.04878 0.00177 0.16959 0.0063 0.02525 0.00035 200 82 159 5 161 2 98% QH-21 225 460 0.05212 0.00325 0.17855 0.01081 0.02494 0.00039 300 143 167 9 159 2 95% QH-22 364 700 0.0465 0.0023 0.16378 0.00834 0.02529 0.00036 33 106 154 7 161 2 95% QH-23 530 1080 0.04982 0.00206 0.17182 0.007 0.02483 0.00029 187 96 161 6 158 2 98% QH-24 567 943 0.051 0.00232 0.17581 0.00812 0.02482 0.00032 243 106 164 7 158 2 96% QH-25 515 1050 0.05016 0.00231 0.17328 0.00794 0.02492 0.00029 211 103 162 7 159 2 97% QH-26 432 1050 0.0508 0.00213 0.17637 0.00754 0.02517 0.00035 232 96 165 7 160 2 97% QH-27 727 1333 0.05065 0.00173 0.17349 0.00614 0.02477 0.00032 233 80 162 5 158 2 97% QH-28 431 1018 0.04756 0.00201 0.16306 0.00703 0.02488 0.00043 76 100 153 6 158 3 96% QH-29 363 783 0.05207 0.00244 0.17778 0.00817 0.02484 0.00032 287 101 166 7 158 2 95% QH-30 391 886 0.05107 0.00216 0.17495 0.00762 0.02487 0.00036 243 98 164 7 158 2 96% QH-31 381 808 0.04808 0.00262 0.16394 0.00814 0.02517 0.0004 102 126 154 7 160 2 96% QH-32 520 1088 0.05095 0.00215 0.1788 0.00852 0.02536 0.00041 239 66 167 7 161 3 96% QH-33 446 986 0.05209 0.00201 0.18082 0.0073 0.02518 0.00034 300 89 169 6 160 2 94% QH-34 881 1680 0.05116 0.0017 0.17953 0.00647 0.02548 0.00046 256 78 168 6 162 3 96% QH-35 411 979 0.05178 0.00208 0.18079 0.00733 0.02537 0.00037 276 88 169 6 161 2 95% QH-36 433 1322 0.04719 0.00186 0.16374 0.00669 0.02507 0.0003 58 93 154 6 160 2 96% QH-37 507 1176 0.05063 0.0018 0.18078 0.00639 0.02585 0.00038 233 83 169 5 165 2 97% QH-38 467 1113 0.04921 0.00203 0.17384 0.00795 0.02536 0.00039 167 96 163 7 161 2 99% QH-39 488 1114 0.04861 0.00222 0.1701 0.0081 0.02525 0.0004 128 107 160 7 161 3 99% QH-40 463 851 0.05013 0.00248 0.17402 0.009 0.02501 0.00038 211 119 163 8 159 2 97%
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表 3 标准锆石LA-ICP-MS原位微区微量元素分析结果
Table 3 In-situ LA-ICP-MS results of trace elements for standard zircons
10-6 测点 Ti Nb La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Ta Pb Th U 91500标准锆石 91500-1 2.78 0.87 0 2.31 0.01 0.32 0.37 0.25 2.01 0.74 9.71 3.98 21.6 5.02 56.6 11.5 0.44 14.6 25.3 70.3 91500-2 4.06 0.77 0.01 2.27 0.01 0.24 0.4 0.13 2.24 0.88 9.65 4.05 21.3 5.43 54.1 11.7 0.42 13.9 24.8 69.1 91500-3 5.07 0.58 0.01 2.14 0 0.15 0.43 0.22 1.79 0.65 9.53 3.94 20.7 5.18 57.1 11.3 0.52 14.4 24.6 68.9 91500-4 6.8 0.69 0 2.2 0 0.16 0.14 0.21 2.1 0.65 10.4 4.29 21 5.23 55.1 11.4 0.56 14.6 25.1 69.8 91500-5 3.66 0.78 0 2.47 0.01 0.28 0.38 0.21 1.92 0.71 9.34 3.92 21.4 5.58 54.7 11.5 0.51 14.1 24.4 68.6 91500-6 5.12 0.76 0 2.21 0.02 0 0.4 0.2 1.85 0.71 10.6 4.54 21.4 5.42 57.5 11.7 0.48 14.5 24.8 69.9 91500-7 5.06 0.8 0 2.25 0.02 0.06 0.38 0.3 1.97 0.78 9.88 4.24 20.4 5.48 56 11.6 0.41 14.1 24.3 68.2 91500-8 5.6 0.77 0 2.27 0.03 0.11 0.23 0.17 1.72 0.62 9.21 4.11 20.6 5.3 56.7 11 0.53 14.2 25 68.5 91500-9 3.32 0.89 0.01 2.47 0.02 0.28 0.2 0.24 2.06 0.68 9.49 4.35 22.4 5.34 55 11.8 0.56 14.4 24.6 69.9 91500-10 5.74 0.79 0 2.5 0.01 0.1 0.59 0.2 2.14 0.81 10.15 4.2 21.9 5.6 57.6 11.4 0.51 14.4 24.5 69.7 91500-11 4.5 0.73 0.01 2.13 0 0.35 0.16 0.33 2.12 0.7 9.51 3.92 21.7 5.06 56 11.4 0.42 13.8 23.7 67.5 91500-12 4.88 0.77 0 2.05 0.03 0.25 0.43 0.29 1.21 0.63 9.87 4.5 21.1 5.46 55.4 11.6 0.53 14.5 25.8 71.2 91500-13 5.44 0.9 0 2.27 0.01 0.04 0.3 0.24 2.17 0.74 9.64 4.06 21.5 5.18 56.1 11.3 0.47 14.2 25 70.1 91500-14 4.59 0.73 0 2.17 0.03 0.29 0.37 0.22 1.64 0.65 9.39 3.96 20.5 5.25 54.2 11.2 0.45 14.2 24.2 70.2 91500-15 3.81 0.8 0.02 2.28 0.01 0.33 0.6 0.28 2.03 0.75 9.98 4.15 21.2 5.36 55.6 11.7 0.47 14.2 24.9 70.3 91500-16 3.42 0.86 0.01 2.3 0.01 0 0.35 0.21 2.33 0.67 9.54 4.38 21 5.29 57 11.6 0.47 14.5 26 71.9 91500-17 4.18 0.73 0 2.49 0 0.15 0.49 0.28 2.32 0.72 10 3.98 20.1 5.45 58 11.8 0.43 14.4 25.4 71.4 91500-18 3.76 0.79 0 2.3 0.01 0.33 0.33 0.13 2.01 0.67 9.43 4 21.7 5.12 54.4 11.4 0.54 13.8 24.5 69 91500-19 4.4 0.64 0 2.26 0.02 0.12 0.31 0.19 1.91 0.73 9.43 3.95 19.4 5.16 53.7 11.3 0.45 13.6 24.3 68.1 91500-20 3.54 0.84 0 2.49 0 0.02 0.49 0.22 2.02 0.84 9.7 4.22 21.2 5.25 55 11.4 0.48 13.8 24.7 69.1 91500平均值 4.49 0.77 0.004 2.29 0.01 0.18 0.37 0.23 1.98 0.72 9.72 4.14 21.1 5.31 55.8 11.5 0.48 14.2 24.8 69.6 最高值[34] 9.9 0.924 0.0028 2.89 0.026 0.28 0.628 0.294 3.71 0.924 17.4 7.06 36.9 10.5 109 14 0.718 18 40.6 87.4 最低值[34] 4.4 0.682 0.0007 2.19 0.01 0.18 0.39 0.19 1.78 0.65 9.59 3.49 17.4 5.59 73 7.5 0.44 10.8 18.3 61.9 GJ-1标准锆石 GJ-1 3.04 1.98 0.01 16.6 0.03 0.79 1.32 0.98 7.28 1.79 19.2 6.41 26.8 5.71 59.9 11.1 0.48 32.8 8.92 328 GJ-2 3.92 1.87 0.01 16.2 0.04 0.63 1.59 1.15 6.82 1.92 19 6.56 27.3 6.07 60.8 11.8 0.43 32.8 9.14 329 GJ-3 3.97 1.79 0 16.3 0.04 0.6 1.52 0.82 6.34 1.98 18.6 6.34 27 5.91 59.6 12.1 0.46 32.2 9.09 323 GJ-4 3.08 1.77 0 15.6 0.04 0.77 1.43 0.88 5.97 1.84 18.2 6.44 26.7 6.02 58.9 11.7 0.52 31.6 9.11 318 GJ-5 4.55 1.77 0 16.1 0.01 0.43 1.25 1.05 7.07 1.92 19.9 6.58 27.8 5.89 61.3 12.1 0.42 31.5 9.01 317 GJ-6 3.51 1.91 0.01 16.1 0.01 0.53 1.72 0.78 6.26 2.01 19.8 6.27 26.3 5.78 58.1 11.8 0.49 31.4 9 316 GJ-7 2.86 1.76 0 15.4 0.03 0.61 1.28 0.95 7.03 1.77 18.8 6.14 27.1 6.18 60.1 11.9 0.57 30.9 9.22 314 GJ-8 4.47 1.73 0 16.6 0.02 0.5 1.66 0.91 7.3 2.06 20.1 6.08 26.4 6.18 61.3 11.7 0.52 32.2 9.47 324 GJ-9 3.65 1.93 0 15.4 0.01 0.71 1.63 0.9 5.82 1.94 19.9 6.61 27.4 5.89 58.4 11.9 0.5 31.6 9.17 320 GJ-10 2.97 1.76 0.01 15.9 0.03 0.5 1.2 1.02 6.62 1.86 19.4 6.48 26.7 6.39 61.8 11.9 0.51 31.5 9.01 320 GJ-11 3.92 1.67 0.01 15.8 0.03 0.49 1.59 0.99 6.95 1.8 19.7 6.55 28 6.06 61.4 12 0.44 31.4 9.44 320 GJ-12 2.65 1.77 0 15.9 0.03 0.93 1.29 0.94 6.06 1.83 18.7 6.46 27.3 5.82 60 12 0.42 31.5 9.27 319 GJ-13 3.08 1.76 0 16.5 0.02 0.69 1.63 1.02 6.87 1.87 18.2 6.42 27.4 6.07 62.4 11.5 0.51 33.1 8.99 338 GJ-14 3.52 1.7 0.01 16.5 0.03 0.59 1.16 0.98 6.51 1.89 18.7 6.37 26.9 5.9 61 11.6 0.46 32.4 8.9 327 GJ-15 4.94 1.89 0 16.7 0.02 0.57 1.03 1.05 7.71 1.9 19.3 6.79 26.9 6.46 63.6 11.4 0.55 33.5 9.16 338 GJ-16 3.43 1.85 0 15.8 0.03 0.85 1.47 1.07 6.71 1.86 18.5 6.26 27.7 5.95 60.2 11.8 0.49 32.2 9.23 329 GJ-17 2.68 1.77 0 15.7 0.02 0.8 1.38 0.85 6.91 1.89 18.7 6.31 27.7 5.94 60.3 11.5 0.47 32.3 8.8 329 GJ-18 1.9 1.86 0.01 16.6 0.04 0.69 1.71 1.03 7.21 1.87 18.9 6.42 26.8 5.97 60.5 11.6 0.4 32.7 9.03 333 GJ-19 4.47 1.79 0.01 16.4 0.02 0.69 1.96 1.03 7.25 1.83 18.3 6.6 27.2 5.96 61.3 11.7 0.45 33 8.96 330 GJ-20 2.91 1.64 0 16.3 0.03 0.55 1.41 1.12 6.2 1.88 18.5 6.47 26.6 6.07 58.8 11.6 0.46 32.1 8.98 327 GJ-21 4.47 1.67 0 15.4 0.05 0.42 1.3 1.22 7.49 1.72 18.6 6.63 27.9 6.03 59.9 11.8 0.48 31.6 9.02 321 GJ-22 3.11 1.73 0 16.3 0.02 0.45 1.68 0.99 6.65 1.88 19.5 6.65 27 6.11 58.4 11.8 0.51 31.9 8.83 322 GJ-23 3.83 1.72 0 16 0.01 0.5 1.53 0.94 6.67 1.84 18.9 6.22 25.9 6.15 59.7 11.3 0.46 32 9.07 326 GJ-24 2.92 1.75 0 15.8 0.03 0.51 1.49 0.9 6.66 1.84 19 6.54 25.8 5.92 58.2 11.8 0.44 31.4 8.95 317 GJ-25 4.11 1.69 0.01 15.7 0.03 0.66 1.34 1.24 6.58 1.98 18.1 6.08 26.8 5.81 63.7 11.6 0.44 32.8 8.9 329 GJ-26 3.84 1.74 0 15.8 0.03 0.57 1.32 1.04 6.55 1.78 17.9 6.11 26.5 5.93 58.5 11.3 0.45 31.3 9.07 315 GJ-27 3.45 1.71 0.01 15.9 0.03 0.68 1.41 0.93 6.79 1.88 19 6.12 27.8 6.12 58.8 11.8 0.46 31 9.15 313 GJ-28 3.15 1.62 0 16 0.02 0.49 1.64 1.13 6.5 1.84 18.5 6.32 26.6 5.94 59.2 11.3 0.42 31.7 8.68 320 GJ-1平均值 3.51 1.77 0 16 0.03 0.62 1.46 1 6.74 1.87 18.9 6.4 27 6.01 60.2 11.7 0.47 32 9.06 324 最高值[21] 10.6 1.59 0.021 15.3 0.051 0.816 1.63 1.07 7.35 2.02 21.8 7.07 32.3 6.84 77.9 12.8 0.496 36 11.8 333 最低值[21] 0.22 1.25 11.5 0.02 0.33 1.08 0.7 4.97 1.53 16.9 5.28 27.1 5.65 66.3 10.4 0.41 23.1 7.5 202 Plešovice标准错石 Plešovice-1 65.1 4.96 0.07 2.58 0.2 1.7 2.54 0.64 11 4.27 42.1 12.4 42.5 7.2 48.7 6.74 2.34 36.1 66.4 661 Plešovice-2 64.9 4.94 0.14 2.34 0.2 1.98 2.7 0.82 10.7 4.06 42 11.7 39.6 6.88 47.6 6.65 2.44 34.9 65.9 635 Plešovice-3 63 4.6 0.12 2.32 0.24 1.94 2.92 0.88 10.9 3.95 40.1 11.6 39.7 6.71 46.8 6.45 2.49 34.7 63.2 628 Plešovice-4 70.6 4.92 0.02 2.16 0.1 1.14 2.4 0.66 10.4 3.74 41.5 11.5 39.8 7.03 48.4 6.6 2.46 35.4 61 646 Plešovice-5 60.9 4.94 0.01 2.07 0.1 1.56 2.55 0.74 10.5 3.84 42 11.8 41 6.98 49.7 6.7 2.69 35.9 63.1 660 Plešovice-6 60.9 4.76 0.01 2.2 0.09 1.39 2.46 0.61 11.6 3.98 43.5 12.3 43.5 7.32 50.8 7.22 2.52 41.2 70.5 758 Plešovice-7 53.3 5.23 0.14 2.65 0.22 2.25 3.03 0.87 11 3.98 43.3 12.2 43.8 7.28 51.4 7.31 2.79 42.5 72.4 776 Plešovice-8 66.7 4.66 0.33 4.17 0.43 3.61 3.16 1.22 11 4.09 42.6 12 42.6 7.4 51.8 7.26 2.52 36.9 65.7 681 Plešovice-9 61.9 5.45 0 2.37 0.08 1.6 3.02 0.88 11 4.11 45.1 12.4 43.4 7.34 49.1 7.14 2.83 37.8 67.4 699 Plešovice-10 68.6 4.89 0.03 1.94 0.1 1.73 2.79 0.67 12 4.23 42.9 11.8 40.1 6.87 48.8 6.38 2.73 36.3 66.5 663 Plešovice-11 60.9 4.49 0.1 2.31 0.13 2.62 3.09 0.96 10.9 3.85 42.6 11.6 41.8 6.71 48.5 7.08 2.47 35.1 62.3 645 Plešovice-12 70.3 4.64 0.04 2.04 0.1 1.4 2.46 0.72 9.1 3.89 40.6 12.1 41.9 7.23 50.6 6.75 2.39 38.3 65.6 705 Plešovice-13 56.3 4.72 0.21 2.38 0.15 1.33 2.92 0.73 10.3 4.06 41.3 11.7 42 7.3 50.5 7.12 2.64 41.1 67.7 754 Plešovice-14 70.6 5.23 0.02 1.95 0.13 1.24 3 0.59 10.2 3.89 41.1 12.4 40.9 7.1 48.6 6.65 2.74 36.4 62.8 667 Plešovice-15 103.3 4.91 0.04 2.31 0.2 2.49 4.65 1.22 17.9 6.63 67 19.3 68.5 11.7 85.3 11.7 2.54 43.9 78.7 809 Plešovice-16 100.1 4.57 0.03 2.24 0.14 2.65 4.35 1.32 17.4 6.65 67.6 19.5 67.3 11.7 84.8 11.7 2.74 43.4 77.7 799 Plešovice-17 85.8 4.89 0.07 2.34 0.17 2.49 3.41 0.96 14.9 5.51 57.6 16.5 56.4 10.4 69.3 10.1 2.65 40.6 74.3 743 Plešovice-18 74.7 4.65 0.08 1.99 0.13 1.86 2.94 0.72 10.7 4.03 40.1 11.5 42.6 7.03 51.4 7.09 2.39 37.5 64.7 690 Plešovice-19 60.5 4.99 0.02 2.2 0.05 1.24 2.66 0.79 11 4.14 42.9 12.2 43.8 7.24 52.6 7.17 2.74 43.5 72.7 794 Plešovice-20 67.2 5 0.02 1.9 0.08 1.71 2.94 0.88 12.2 3.84 41.2 11.7 41 6.74 46.8 6.37 2.52 34.4 62.8 631 Plešovice-21 77 5.48 0.02 2.26 0.12 1.38 2.67 0.67 11.2 4.41 45 12.6 44.4 7.46 49.6 6.91 2.65 38.4 70.7 702 Plešovice-22 74.1 5 0.09 2.52 0.19 2.02 2.64 0.89 10.8 4.09 45.8 12.2 42.8 7.14 50.4 7.08 2.77 37.4 68.7 684 Plešovice-23 71.8 4.72 0.01 1.94 0.11 1.12 2.6 0.74 10.8 3.79 41 11.2 39.9 6.75 48.8 6.38 2.62 35 62.6 645 Plešovice-24 95 4.45 0.1 2.69 0.22 2.23 4.69 1.5 17.5 6.52 70.4 19.8 69.3 11.9 86.2 12 2.64 44.6 80.8 821 Plešovice-25 91.5 4.74 0.07 2.55 0.23 2.96 4.11 1.44 18.5 6.67 68.7 19.9 69.4 12.1 85.4 12.1 2.61 43.8 79.9 803 Plešovice-26 96 4.58 0.09 2.55 0.24 3.28 4.57 1.5 17.7 6.68 71 20.1 69.8 11.8 86.6 12.4 2.7 43.9 79.1 806 Plešovice-27 98.6 4.76 0.03 2.34 0.22 2.74 4.22 1.17 19.3 6.77 72 19.9 68.2 12.1 84.4 12.2 2.71 44 80.3 811 Plešovice-28 98.6 4.6 0.03 2.57 0.24 2.76 4.35 1.3 18.7 6.75 70.3 19.9 69.2 12 86.1 11.9 2.75 43.9 80.1 814 PleSovice平均值 74.6 4.85 0.07 2.35 0.16 2.02 3.21 0.93 12.8 4.73 49.7 14.1 49.1 8.4 59.2 8.3 2.61 39.2 69.8 719 最高值[21] 92 5.13 0.128 2.37 0.255 3.25 5.53 1.6 20.3 78.2 78.8 22.1 77.5 13.8 106 12.1 3.39 41.6 76.4 650 最低值[21] 27.2 2.73 1.31 0.07 0.75 1.46 0.38 5.7 2.9 32.1 9 32.8 6 41.1 5 1.89 27.5 40 430 Qinghu标准错石 QH-1 4.78 8.34 0 16.54 0.07 0.86 2.17 0.23 13 4.65 56.5 22 105 23.7 228 46 5.32 35.3 562 1308 QH-2 11.9 5.04 0.01 9.98 0.07 1.17 2.61 0.3 12.8 3.86 46.3 17.2 78.6 17.6 166 33.6 2.95 17.7 318 645 QH-3 8.02 7.94 2.96 21.83 0.66 2.43 2.89 0.42 15.5 5.07 62.1 24.2 107 25 236 46.2 5.03 31.8 545 1171 QH-4 10 6.35 0.01 16.44 0.09 1.57 2.06 0.29 11.4 4.26 53.2 20 92.1 21 204 39.4 3.9 27 460 981 QH-5 5.72 9.32 0.05 21.63 0.07 1.29 3.06 0.25 14.2 5.19 66.1 24.6 113 25.9 252 50.2 5.48 38.5 626 1426 QH-6 13.3 6.92 0.02 13.43 0.17 2.07 3.71 0.6 20.5 6.48 70.9 25.7 122 27 258 49.3 3.49 29.6 697 1038 QH-7 10.7 5.49 0.1 11.94 0.06 1.12 2.53 0.28 12.3 4.5 47.1 18.3 84.5 18.7 181 36.4 3.66 22.5 419 817 QH-8 6.84 10.45 0.03 25.17 0.07 1.88 3.2 0.39 17.9 5.75 70.9 27.2 125 29.3 282 55.7 7.24 48.4 735 1808 QH-9 13.2 5.91 0.05 10.93 0.11 1.95 2.43 0.36 12.4 4.35 52.4 19.8 90.8 20.3 197 38.4 3.65 23 477 819 QH-10 10 7.79 3.51 25.3 1.24 7.99 7.99 0.83 36.9 12.08 136.4 47.5 210 46.4 430 81.3 4.2 44.7 962 1589 QH-11 9.62 6.16 0.69 14.57 0.24 1.45 2.92 0.36 12.7 4.56 54.3 20.5 95.3 21.3 211 41.1 3.9 25.4 438 939 QH-12 15.1 9.58 2.54 25.49 0.96 5.88 4.32 0.96 21.4 7.36 85.1 31.4 137 31.8 297 58.9 4.43 36.2 709 1328 QH-13 14.2 10.14 0.37 19.65 0.3 2.03 3.13 0.38 14.6 5.44 68 24.9 112 25.3 244 47.9 5.59 40.3 749 1508 QH-14 6.94 7.36 0.03 17.02 0.08 1.14 3.02 0.32 15.8 5.19 63.5 23.6 108 24.9 245 48 4.44 36 631 1330 QH-15 24.6 11.69 0.49 25.72 0.17 2.1 3.85 0.35 17.7 6.4 74.8 27.9 132 29.4 284 54.6 6.27 46.4 868 1718 QH-16 11.3 7.24 0.13 18.14 0.07 1.4 2.78 0.39 12.8 5.19 59.7 22.7 108 23.9 244 45.9 4.88 31.6 535 1177 QH-17 9.58 6.99 0.09 14.47 0.24 2.67 4.11 0.53 19.2 7.03 82.1 29.5 132 30 289 54.4 4.18 29 538 1070 QH-18 13.8 13.98 0.35 24.94 0.31 3.43 5.2 0.57 23.3 7.78 93.2 35.2 163 35.6 357 65.4 6.47 48.5 1047 1786 QH-19 10.7 7.27 0.12 16.02 0.07 1.45 2.95 0.3 13.9 4.82 59.1 22.6 104 24 235 45.9 4.61 32.5 576 1227 QH-20 9.18 6.42 2.24 18.41 0.56 3.05 4.01 0.84 16.7 5.76 67.6 25.3 116 25.9 251 48.9 3.9 27.9 506 1037 QH-21 13 4.11 0 8.97 0.09 1.27 1.93 0.34 11.2 3.93 47.6 17.3 77.6 17.7 170 32.8 2.72 13.3 225 460 QH-22 9.08 3.93 0.01 10.51 0.14 2.32 3.37 0.54 18.4 6.57 76.4 27.8 123 27.1 263 49.5 2.45 20.4 364 700 QH-23 11.6 7.22 0.02 15.17 0.06 1.27 2.8 0.31 15.3 5.03 59.1 22 99.2 22.6 221 43.4 4.18 30.8 530 1080 QH-24 10.9 4.32 0.05 12.46 0.27 4.03 6.39 0.95 29.7 9.87 111 39 174 37.6 358 66.7 2.94 27.2 567 943 QH-25 11.6 6.24 0.02 14.02 0.09 1.07 2.01 0.33 14.5 4.75 56.3 20.7 99 22 219 41.8 3.86 29.4 515 1050 QH-26 7.11 6.98 0.25 17.19 0.08 1.48 2.76 0.28 11.6 4.3 52.8 20 96.7 21.9 218 41.8 4.46 29 432 1050 QH-27 10.5 7.38 0.01 16.42 0.12 1.7 3.49 0.47 19.1 6.32 74.5 28.9 130 28.8 276 52.6 4.48 37.7 727 1333 QH-28 10.3 6.52 0.02 16.98 0.04 0.98 1.92 0.22 11.4 4.11 48.8 19.2 91.9 20.3 202 39.5 4.19 28.1 431 1018 QH-29 7.57 4.24 0 10.17 0.04 1.2 1.75 0.3 9.83 3.57 41.4 15.7 77.2 17.5 173 33.2 3.09 21.9 363 783 QH-30 11.1 5.32 0.01 11.84 0.03 1.15 2.2 0.3 11.8 4.14 51.6 19.1 89.3 20.2 200 39.1 3.45 24.7 391 886 QH-31 7.31 4.72 0.02 11.58 0.09 1.51 3.5 0.52 14.3 5.27 61.8 23.1 105 23.5 228 44.3 3.06 23 381 808 QH-32 12.2 8.07 0.02 14.71 0.1 1.73 3.04 0.5 16.7 6.26 71.7 27.9 130 28.4 288 55.2 5 30.7 520 1088 QH-33 14.3 6.47 0.05 13.17 0.08 1.5 2.24 0.33 14 4.67 58.3 21.2 101 22.8 230 44.4 4.65 28.1 446 986 QH-34 8.59 6.39 0.67 21.66 0.26 3.59 7.58 0.57 32.1 11.1 134 48.2 217 47.1 445 84.1 4.54 50.3 881 1680 QH-35 10.2 6.25 0 15.53 0.03 1.26 1.82 0.32 12.3 4.36 55.9 20.2 97.1 21.6 210 41 3.71 27.6 411 979 QH-36 5.73 8.93 0.1 20.06 0.06 0.99 2.45 0.25 12 4.59 55.8 21.9 103 24.5 239 48.6 6.14 35.9 433 1322 QH-37 9.17 7.05 0.01 18.28 0.06 1.16 2.26 0.32 14.5 5.17 61.1 22.8 109 24.3 236 47.3 4.52 33.5 507 1176 QH-38 7.99 6.87 0.02 17.61 0.06 1.16 2.47 0.3 14 4.58 56.8 20.6 97.9 22.2 220 42.8 4.22 31 467 1113 QH-39 8.25 6.99 0.32 17.92 0.09 1.99 2.5 0.2 12.7 4.61 59.2 21.5 102 23.2 229 43.7 4.22 31.1 488 1114 QH-40 7.38 4.76 0.99 18.08 0.6 3.69 4.79 0.95 21.9 7.34 89.5 31 142 31 292 55.1 3.05 23.7 463 851 Qinghu平均值 10.33 7.08 0.41 16.75 0.2 2.05 3.26 0.43 16.31 5.66 67.35 25 115 25.8 250 48.4 4.31 31.2 549 1129 最高值[21, 33] 63.2 19.4 65.4 144 15.1 59.5 13.7 2.24 44.1 16.5 185 61.7 267 57.2 562 85.3 6.41 33.7 972 2046 最低值[21, 33] 4.2 3.05 0.005 8.61 0.53 0.83 1.25 0.187 5.71 2.09 26.6 10.4 54.7 14.2 163 31.2 2.01 3.49 184 524
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