地学前缘 ›› 2022, Vol. 29 ›› Issue (2): 261-280.DOI: 10.13745/j.esf.sf.2022.2.8
徐盛林1(), 丁伟翠1,*(
), 陈宣华1, 李廷栋2, 韩乐乐1,3, 刘勇2, 马飞宙4, 王叶1
收稿日期:
2021-10-20
修回日期:
2022-02-15
出版日期:
2022-03-25
发布日期:
2022-03-31
通信作者:
丁伟翠
作者简介:
徐盛林(1991—),男,博士,助理研究员,构造地质学专业,主要从事构造地质学、岩石地球化学研究。E-mail: xushenglindizhi@163.com
基金资助:
XU Shenglin1(), DING Weicui1,*(
), CHEN Xuanhua1, LI Tingdong2, HAN Lele1,3, LIU Yong2, MA Feizhou4, WANG Ye1
Received:
2021-10-20
Revised:
2022-02-15
Online:
2022-03-25
Published:
2022-03-31
Contact:
DING Weicui
摘要:
西准噶尔地区晚古生代岩浆活动剧烈,地壳的垂向和侧向增生显著,地壳生长和演化存在多阶段性。本文重点通过Sr-Nd-Pb同位素填图研究,发现西准噶尔地区εNd(t)值为2.29~8.75,(87Sr/86Sr)i值为0.697 397~0.708 336,(206Pb/204Pb)i值为17.4975~19.0352,整体表现为高正εNd(t)、低(87Sr/86Sr)i和年轻的地壳模式年龄特征,源区以古生代新生地壳为主,地幔贡献值整体大于50%,深部地壳几乎不存在古老的结晶基底,可以与区域构造地质、地球物理资料作较好匹配。区域晚古生代主要经历3个时期的造山阶段,分别对应造山带演化的第一阶段(中晚石炭世,岛弧为代表的侧向生长为主)、第二阶段早期(晚石炭世—早二叠世,后碰撞阶段的垂向生长为主)和第二阶段晚期(早二叠世—早三叠世,壳幔混源背景下的垂向生长),区域造山作用结束于早三叠世。
中图分类号:
徐盛林, 丁伟翠, 陈宣华, 李廷栋, 韩乐乐, 刘勇, 马飞宙, 王叶. 西准噶尔晚古生代地壳组成与生长:来自Sr-Nd-Pb同位素填图的证据[J]. 地学前缘, 2022, 29(2): 261-280.
XU Shenglin, DING Weicui, CHEN Xuanhua, LI Tingdong, HAN Lele, LIU Yong, MA Feizhou, WANG Ye. Late Paleozoic crustal composition and growth in West Junggar: Evidence from Sr-Nd-Pb isotopic mapping[J]. Earth Science Frontiers, 2022, 29(2): 261-280.
图2 西准噶尔地区地层-构造-岩浆简图(据文献[19,69,81]修改) 1—艾比湖断裂;2—达拉布特断裂;3—玛依勒断裂;4—巴尔鲁克断裂;5—安齐断裂;6—塔尔根环状断裂;7—玛雅图断裂;8—扎娄勒山—拉巴山断裂;9—一家人断裂;10—哈图断裂;11—别鲁阿嘎希断裂;12—谢米斯台断裂;13—杨庄断裂。AK—阿克巴斯套岩体;BE—布尔克斯台岩体;BI—包古图岩体;BL—别鲁阿嘎希岩体;DL—都伦河东岩体;GZ—鸽子洞岩体;HT—哈图岩体;HS—红山岩体;JT—接特布调岩体;K956—K956岩体;KD—康德萨依岩体;KL—克拉玛依岩体;KM—库鲁木苏岩体;LD—拉巴岩体;LK—拉巴河口岩体;ME—庙尔沟岩体;SL—赛力克岩体;TC—铁厂沟岩体;TE—塔尔根岩体;TK—塔克尔干岩体;YM—雅玛图岩体;YY—玉依岩体。
Fig. 2 stratigraphic-structural-magmatic diagram for the West Junggar region. Modified after [19, 69, 81].
岩性 | 经度/(°) | 纬度/(°) | 年龄/ Ma | wB/10-6 | 143Nd/144Nd | 147Sm/144Nd | 2σ/10-6 | (143Nd/144Nd)i | | εNd(t) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nd | Sm | |||||||||||||||||||
二长花岗岩 | 82.631 000 | 45.230 389 | 271 | 26.10 | 6.32 | 0.512 666 | 0.146 395 | 9 | 0.512 406 | 851 | 2.29 | |||||||||
二长花岗岩 | 82.637 083 | 45.230 972 | 266 | 29.70 | 6.63 | 0.512 677 | 0.134 961 | 10 | 0.512 441 | 801 | 2.86 | |||||||||
碱长花岗岩 | 82.766 667 | 45.328 444 | 255 | 24.30 | 5.96 | 0.512 748 | 0.148 286 | 9 | 0.512 500 | 722 | 3.72 | |||||||||
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 8.77 | 1.81 | 0.512 708 | 0.124 777 | 9 | 0.512 473 | 725 | 4.01 | |||||||||
二长花岗岩 | 82.738 306 | 45.305 417 | 250 | 35.20 | 7.48 | 0.512 765 | 0.128 475 | 8 | 0.512 554 | 642 | 4.65 | |||||||||
花岗闪长岩 | 82.757 917 | 45.318 278 | 255 | 44.00 | 9.36 | 0.512 764 | 0.128 613 | 9 | 0.512 549 | 644 | 4.68 | |||||||||
二长花岗岩 | 82.746 389 | 45.309 778 | 262 | 29.70 | 7.04 | 0.512 802 | 0.143 312 | 9 | 0.512 556 | 624 | 5.00 | |||||||||
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 26.10 | 5.66 | 0.512 768 | 0.131 110 | 8 | 0.512 511 | 650 | 5.06 | |||||||||
流纹岩 | 84.405 400 | 45.925 917 | 335 | 5.96 | 1.26 | 0.512 760 | 0.127 816 | 8 | 0.512 479 | 655 | 5.35 | |||||||||
英安岩 | 83.645 589 | 45.782 686 | 329 | 24.90 | 5.22 | 0.512 769 | 0.126 746 | 10 | 0.512 495 | 638 | 5.50 | |||||||||
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 8.86 | 1.86 | 0.512 791 | 0.126 924 | 7 | 0.512 554 | 599 | 5.54 | |||||||||
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 8.82 | 1.75 | 0.512 791 | 0.119 959 | 9 | 0.512 565 | 578 | 5.81 | |||||||||
中酸性岩墙 | 82.569 083 | 45.551 167 | 300 | 26.20 | 4.54 | 0.512 778 | 0.104 765 | 9 | 0.512 592 | 556 | 5.92 | |||||||||
花岗斑岩 | 83.841 861 | 45.610 778 | 300 | 32.60 | 7.35 | 0.512 824 | 0.136 313 | 8 | 0.512 556 | 578 | 5.94 | |||||||||
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 17.10 | 3.72 | 0.512 829 | 0.131 527 | 8 | 0.512 579 | 553 | 6.15 | |||||||||
安山玢岩 | 83.793 444 | 45.582 389 | 300 | 13.80 | 3.22 | 0.512 850 | 0.141 074 | 16 | 0.512 573 | 550 | 6.28 | |||||||||
闪长岩 | 83.764 833 | 45.594 139 | 300 | 13.40 | 3.13 | 0.512 851 | 0.141 224 | 10 | 0.512 574 | 550 | 6.28 | |||||||||
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 22.80 | 4.67 | 0.512 827 | 0.123 837 | 9 | 0.512 584 | 534 | 6.48 | |||||||||
英安岩 | 83.645 589 | 45.782 686 | 323 | 36.30 | 7.79 | 0.512 834 | 0.129 748 | 14 | 0.512 559 | 544 | 6.60 | |||||||||
流纹岩 | 83.643 475 | 45.787 075 | 303 | 41.40 | 9.70 | 0.512 876 | 0.141 659 | 10 | 0.512 594 | 512 | 6.79 | |||||||||
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 13.30 | 2.92 | 0.512 863 | 0.132 740 | 9 | 0.512 602 | 504 | 6.84 | |||||||||
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 21.00 | 5.18 | 0.512 895 | 0.149 137 | 9 | 0.512 601 | 504 | 6.85 | |||||||||
流纹岩 | 83.644 169 | 45.786 736 | 301 | 37.00 | 8.30 | 0.512 870 | 0.135 628 | 10 | 0.512 602 | 502 | 6.88 | |||||||||
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 12.00 | 2.83 | 0.512 887 | 0.142 587 | 14 | 0.512 612 | 495 | 6.91 | |||||||||
流纹岩 | 83.644 817 | 45.782 625 | 295 | 35.40 | 9.39 | 0.512 922 | 0.160 376 | 8 | 0.512 611 | 494 | 6.92 | |||||||||
流纹岩 | 83.645 589 | 45.782 686 | 294 | 33.00 | 8.28 | 0.512 909 | 0.151 702 | 7 | 0.512 617 | 488 | 6.98 | |||||||||
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 13.50 | 3.05 | 0.512 881 | 0.136 596 | 13 | 0.512 617 | 486 | 7.01 | |||||||||
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 13.60 | 3.22 | 0.512 895 | 0.143 150 | 10 | 0.512 614 | 486 | 7.06 | |||||||||
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 11.00 | 2.65 | 0.512 897 | 0.145 656 | 11 | 0.512 593 | 496 | 7.13 | |||||||||
流纹岩 | 83.645 589 | 45.782 686 | 297 | 32.90 | 8.19 | 0.512 917 | 0.150 510 | 10 | 0.512 624 | 473 | 7.20 | |||||||||
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 18.00 | 4.10 | 0.512 895 | 0.137 716 | 11 | 0.512 625 | 469 | 7.27 | |||||||||
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 24.10 | 5.75 | 0.512 909 | 0.144 254 | 12 | 0.512 626 | 467 | 7.30 | |||||||||
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 18.60 | 4.34 | 0.512 904 | 0.141 076 | 10 | 0.512 627 | 465 | 7.32 | |||||||||
英安岩 | 84.569 186 | 45.698 525 | 300 | 14.00 | 3.04 | 0.512 886 | 0.131 286 | 11 | 0.512 628 | 462 | 7.35 | |||||||||
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 20.80 | 5.05 | 0.512 920 | 0.146 793 | 11 | 0.512 641 | 453 | 7.37 | |||||||||
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 24.90 | 6.44 | 0.512 936 | 0.156 374 | 8 | 0.512 628 | 462 | 7.37 | |||||||||
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 10.50 | 2.38 | 0.512 895 | 0.137 045 | 12 | 0.512 614 | 470 | 7.40 | |||||||||
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 10.50 | 2.78 | 0.512 944 | 0.160 079 | 12 | 0.512 616 | 466 | 7.45 | |||||||||
英安岩 | 84.594 325 | 45.708 525 | 300 | 10.00 | 2.26 | 0.512 903 | 0.136 642 | 12 | 0.512 635 | 453 | 7.47 | |||||||||
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 13.10 | 2.94 | 0.512 901 | 0.135 691 | 13 | 0.512 618 | 456 | 7.62 | |||||||||
流纹岩 | 84.580 442 | 45.693 722 | 294 | 15.20 | 3.12 | 0.512 890 | 0.124 104 | 9 | 0.512 650 | 434 | 7.65 | |||||||||
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 18.70 | 4.00 | 0.512 898 | 0.129 328 | 10 | 0.512 644 | 438 | 7.65 | |||||||||
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 19.70 | 4.74 | 0.512 934 | 0.145 476 | 9 | 0.512 648 | 431 | 7.74 | |||||||||
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 30.20 | 7.40 | 0.512 940 | 0.148 151 | 11 | 0.512 649 | 429 | 7.76 | |||||||||
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 21.90 | 5.48 | 0.512 947 | 0.151 292 | 10 | 0.512 650 | 429 | 7.77 | |||||||||
流纹岩 | 84.580 442 | 45.693 722 | 299 | 19.20 | 3.77 | 0.512 889 | 0.118 717 | 12 | 0.512 656 | 418 | 7.90 | |||||||||
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 31.20 | 7.51 | 0.512 943 | 0.145 534 | 10 | 0.512 635 | 423 | 8.07 | |||||||||
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 20.60 | 4.12 | 0.512 651 | 0.120 912 | 6 | 0.512 406 | 805 | 3.26 | |||||||||
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 19.20 | 3.52 | 0.512 704 | 0.110 836 | 12 | 0.512 486 | 689 | 4.58 | |||||||||
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 37.90 | 7.40 | 0.512 718 | 0.118 041 | 5 | 0.512 478 | 689 | 4.68 | |||||||||
英安岩 | 84.581 222 | 46.081 694 | 310 | 14.50 | 3.21 | 0.512 760 | 0.133 837 | 5 | 0.512 488 | 673 | 4.88 | |||||||||
岩性 | 经度/(°) | 纬度/(°) | 年龄/ Ma | wB/10-6 | 143Nd/144Nd | 147Sm/144Nd | 2σ/10-6 | (143Nd/144Nd)i | | εNd(t) | ||||||||||
Nd | Sm | |||||||||||||||||||
花岗岩 | 84.935 222 | 46.566 056 | 300 | 39.40 | 8.84 | 0.512 765 | 0.135 642 | 14 | 0.512 490 | 671 | 4.90 | |||||||||
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 12.30 | 2.62 | 0.512 748 | 0.128 776 | 5 | 0.512 480 | 677 | 4.91 | |||||||||
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 13.60 | 2.84 | 0.512 748 | 0.126 246 | 5 | 0.512 486 | 668 | 5.00 | |||||||||
闪长岩 | 84.406 500 | 46.042 139 | 316 | 13.10 | 2.72 | 0.512 760 | 0.125 527 | 5 | 0.512 500 | 647 | 5.26 | |||||||||
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 26.80 | 5.83 | 0.512 783 | 0.131 514 | 5 | 0.512 525 | 627 | 5.33 | |||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 30.40 | 5.97 | 0.512 771 | 0.118 724 | 10 | 0.512 538 | 607 | 5.59 | |||||||||
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 18.90 | 3.84 | 0.512 781 | 0.122 831 | 8 | 0.512 535 | 604 | 5.68 | |||||||||
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 10.50 | 2.30 | 0.512 803 | 0.132 427 | 8 | 0.512 543 | 598 | 5.69 | |||||||||
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 33.20 | 6.49 | 0.512 780 | 0.118 181 | 14 | 0.512 548 | 591 | 5.78 | |||||||||
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 18.10 | 4.44 | 0.512 845 | 0.148 301 | 7 | 0.512 554 | 581 | 5.90 | |||||||||
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 12.00 | 2.32 | 0.512 784 | 0.116 882 | 8 | 0.512 554 | 580 | 5.91 | |||||||||
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 26.50 | 6.17 | 0.512 830 | 0.140 760 | 6 | 0.512 545 | 584 | 5.96 | |||||||||
细粒花岗岩 | 84.115 889 | 45.960 806 | 300 | 22.60 | 8.99 | 0.513 036 | 0.240 486 | 12 | 0.512 564 | 567 | 6.09 | |||||||||
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 14.90 | 2.91 | 0.512 796 | 0.118 072 | 9 | 0.512 564 | 565 | 6.10 | |||||||||
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 13.90 | 2.45 | 0.512 783 | 0.106 559 | 6 | 0.512 574 | 550 | 6.29 | |||||||||
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 15.20 | 2.60 | 0.512 780 | 0.103 412 | 6 | 0.512 577 | 545 | 6.35 | |||||||||
花岗岩 | 84.419 167 | 46.096 750 | 300 | 29.10 | 6.15 | 0.512 832 | 0.127 768 | 12 | 0.512 578 | 538 | 6.47 | |||||||||
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 30.00 | 7.40 | 0.512 877 | 0.149 125 | 10 | 0.512 585 | 533 | 6.49 | |||||||||
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 36.10 | 9.23 | 0.512 892 | 0.154 573 | 6 | 0.512 594 | 524 | 6.54 | |||||||||
碱长花岗岩 | 84.448 556 | 46.145 944 | 300 | 12.60 | 4.55 | 0.513 025 | 0.218 313 | 7 | 0.512 589 | 527 | 6.71 | |||||||||
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 15.50 | 2.86 | 0.512 818 | 0.111 551 | 10 | 0.512 599 | 509 | 6.78 | |||||||||
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 40.10 | 9.06 | 0.512 866 | 0.136 591 | 5 | 0.512 591 | 513 | 6.81 | |||||||||
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 29.00 | 6.52 | 0.512 871 | 0.135 922 | 11 | 0.512 602 | 502 | 6.90 | |||||||||
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 17.60 | 3.54 | 0.512 843 | 0.121 599 | 8 | 0.512 601 | 501 | 6.92 | |||||||||
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 30.70 | 6.46 | 0.512 854 | 0.127 214 | 6 | 0.512 597 | 502 | 6.96 | |||||||||
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 35.10 | 7.51 | 0.512 864 | 0.129 352 | 6 | 0.512 611 | 492 | 6.98 | |||||||||
花岗岩 | 84.281 000 | 45.830 639 | 309 | 34.00 | 7.30 | 0.512 862 | 0.129 803 | 10 | 0.512 599 | 497 | 7.01 | |||||||||
闪长岩 | 84.539 667 | 45.473 194 | 300 | 13.90 | 3.19 | 0.512 878 | 0.138 744 | 12 | 0.512 591 | 502 | 7.02 | |||||||||
闪长岩 | 84.100 000 | 45.964 028 | 317 | 57.60 | 19.90 | 0.513 024 | 0.208 867 | 5 | 0.512 589 | 497 | 7.04 | |||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 40.40 | 8.78 | 0.512 869 | 0.131 387 | 8 | 0.512 608 | 491 | 7.05 | |||||||||
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 39.60 | 8.81 | 0.512 872 | 0.134 499 | 6 | 0.512 594 | 498 | 7.08 | |||||||||
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 24.70 | 5.73 | 0.512 892 | 0.140 248 | 12 | 0.512 617 | 481 | 7.12 | |||||||||
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 10.30 | 3.44 | 0.513 016 | 0.201 911 | 5 | 0.512 613 | 479 | 7.18 | |||||||||
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 38.30 | 8.17 | 0.512 875 | 0.128 962 | 10 | 0.512 626 | 472 | 7.18 | |||||||||
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 39.40 | 8.57 | 0.512 876 | 0.131 499 | 5 | 0.512 614 | 480 | 7.18 | |||||||||
花岗岩 | 83.661 444 | 45.772 972 | 300 | 31.50 | 6.33 | 0.512 857 | 0.121 488 | 10 | 0.512 616 | 478 | 7.18 | |||||||||
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 32.80 | 6.85 | 0.512 862 | 0.126 257 | 8 | 0.512 600 | 487 | 7.22 | |||||||||
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 17.80 | 3.78 | 0.512 873 | 0.128 384 | 8 | 0.512 612 | 476 | 7.29 | |||||||||
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 15.90 | 3.75 | 0.512 905 | 0.142 585 | 8 | 0.512 616 | 470 | 7.36 | |||||||||
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 45.50 | 8.30 | 0.512 842 | 0.110 282 | 5 | 0.512 620 | 467 | 7.38 | |||||||||
闪长岩 | 84.539 667 | 45.473 194 | 300 | 23.00 | 4.34 | 0.512 847 | 0.114 078 | 10 | 0.512 611 | 470 | 7.41 | |||||||||
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 35.60 | 7.70 | 0.512 888 | 0.130 762 | 5 | 0.512 625 | 459 | 7.47 | |||||||||
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 32.30 | 8.06 | 0.512 932 | 0.150 859 | 8 | 0.512 635 | 451 | 7.50 | |||||||||
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 35.20 | 7.50 | 0.512 895 | 0.128 813 | 12 | 0.512 646 | 440 | 7.57 | |||||||||
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 43.70 | 8.84 | 0.512 886 | 0.122 295 | 6 | 0.512 647 | 435 | 7.68 | |||||||||
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 50.90 | 9.97 | 0.512 879 | 0.118 418 | 9 | 0.512 646 | 434 | 7.71 | |||||||||
黑云母花岗岩 | 84.849 111 | 45.722 250 | 303 | 25.90 | 4.54 | 0.512 853 | 0.105 973 | 6 | 0.512 642 | 436 | 7.72 | |||||||||
花岗岩 | 84.714 278 | 45.676 000 | 313 | 15.20 | 3.15 | 0.512 888 | 0.125 287 | 8 | 0.512 631 | 442 | 7.74 | |||||||||
花岗岩 | 84.557 000 | 45.701 528 | 300 | 13.80 | 2.42 | 0.512 853 | 0.106 017 | 14 | 0.512 638 | 435 | 7.79 | |||||||||
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 20.60 | 3.44 | 0.512 885 | 0.100 956 | 12 | 0.512 679 | 367 | 8.64 |
表1 西准噶尔地区花岗岩类Nd同位素测试与计算数据
Table 1 Nd Isotope analysis and calculation results for granites from West Junggar
岩性 | 经度/(°) | 纬度/(°) | 年龄/ Ma | wB/10-6 | 143Nd/144Nd | 147Sm/144Nd | 2σ/10-6 | (143Nd/144Nd)i | | εNd(t) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nd | Sm | |||||||||||||||||||
二长花岗岩 | 82.631 000 | 45.230 389 | 271 | 26.10 | 6.32 | 0.512 666 | 0.146 395 | 9 | 0.512 406 | 851 | 2.29 | |||||||||
二长花岗岩 | 82.637 083 | 45.230 972 | 266 | 29.70 | 6.63 | 0.512 677 | 0.134 961 | 10 | 0.512 441 | 801 | 2.86 | |||||||||
碱长花岗岩 | 82.766 667 | 45.328 444 | 255 | 24.30 | 5.96 | 0.512 748 | 0.148 286 | 9 | 0.512 500 | 722 | 3.72 | |||||||||
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 8.77 | 1.81 | 0.512 708 | 0.124 777 | 9 | 0.512 473 | 725 | 4.01 | |||||||||
二长花岗岩 | 82.738 306 | 45.305 417 | 250 | 35.20 | 7.48 | 0.512 765 | 0.128 475 | 8 | 0.512 554 | 642 | 4.65 | |||||||||
花岗闪长岩 | 82.757 917 | 45.318 278 | 255 | 44.00 | 9.36 | 0.512 764 | 0.128 613 | 9 | 0.512 549 | 644 | 4.68 | |||||||||
二长花岗岩 | 82.746 389 | 45.309 778 | 262 | 29.70 | 7.04 | 0.512 802 | 0.143 312 | 9 | 0.512 556 | 624 | 5.00 | |||||||||
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 26.10 | 5.66 | 0.512 768 | 0.131 110 | 8 | 0.512 511 | 650 | 5.06 | |||||||||
流纹岩 | 84.405 400 | 45.925 917 | 335 | 5.96 | 1.26 | 0.512 760 | 0.127 816 | 8 | 0.512 479 | 655 | 5.35 | |||||||||
英安岩 | 83.645 589 | 45.782 686 | 329 | 24.90 | 5.22 | 0.512 769 | 0.126 746 | 10 | 0.512 495 | 638 | 5.50 | |||||||||
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 8.86 | 1.86 | 0.512 791 | 0.126 924 | 7 | 0.512 554 | 599 | 5.54 | |||||||||
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 8.82 | 1.75 | 0.512 791 | 0.119 959 | 9 | 0.512 565 | 578 | 5.81 | |||||||||
中酸性岩墙 | 82.569 083 | 45.551 167 | 300 | 26.20 | 4.54 | 0.512 778 | 0.104 765 | 9 | 0.512 592 | 556 | 5.92 | |||||||||
花岗斑岩 | 83.841 861 | 45.610 778 | 300 | 32.60 | 7.35 | 0.512 824 | 0.136 313 | 8 | 0.512 556 | 578 | 5.94 | |||||||||
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 17.10 | 3.72 | 0.512 829 | 0.131 527 | 8 | 0.512 579 | 553 | 6.15 | |||||||||
安山玢岩 | 83.793 444 | 45.582 389 | 300 | 13.80 | 3.22 | 0.512 850 | 0.141 074 | 16 | 0.512 573 | 550 | 6.28 | |||||||||
闪长岩 | 83.764 833 | 45.594 139 | 300 | 13.40 | 3.13 | 0.512 851 | 0.141 224 | 10 | 0.512 574 | 550 | 6.28 | |||||||||
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 22.80 | 4.67 | 0.512 827 | 0.123 837 | 9 | 0.512 584 | 534 | 6.48 | |||||||||
英安岩 | 83.645 589 | 45.782 686 | 323 | 36.30 | 7.79 | 0.512 834 | 0.129 748 | 14 | 0.512 559 | 544 | 6.60 | |||||||||
流纹岩 | 83.643 475 | 45.787 075 | 303 | 41.40 | 9.70 | 0.512 876 | 0.141 659 | 10 | 0.512 594 | 512 | 6.79 | |||||||||
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 13.30 | 2.92 | 0.512 863 | 0.132 740 | 9 | 0.512 602 | 504 | 6.84 | |||||||||
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 21.00 | 5.18 | 0.512 895 | 0.149 137 | 9 | 0.512 601 | 504 | 6.85 | |||||||||
流纹岩 | 83.644 169 | 45.786 736 | 301 | 37.00 | 8.30 | 0.512 870 | 0.135 628 | 10 | 0.512 602 | 502 | 6.88 | |||||||||
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 12.00 | 2.83 | 0.512 887 | 0.142 587 | 14 | 0.512 612 | 495 | 6.91 | |||||||||
流纹岩 | 83.644 817 | 45.782 625 | 295 | 35.40 | 9.39 | 0.512 922 | 0.160 376 | 8 | 0.512 611 | 494 | 6.92 | |||||||||
流纹岩 | 83.645 589 | 45.782 686 | 294 | 33.00 | 8.28 | 0.512 909 | 0.151 702 | 7 | 0.512 617 | 488 | 6.98 | |||||||||
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 13.50 | 3.05 | 0.512 881 | 0.136 596 | 13 | 0.512 617 | 486 | 7.01 | |||||||||
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 13.60 | 3.22 | 0.512 895 | 0.143 150 | 10 | 0.512 614 | 486 | 7.06 | |||||||||
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 11.00 | 2.65 | 0.512 897 | 0.145 656 | 11 | 0.512 593 | 496 | 7.13 | |||||||||
流纹岩 | 83.645 589 | 45.782 686 | 297 | 32.90 | 8.19 | 0.512 917 | 0.150 510 | 10 | 0.512 624 | 473 | 7.20 | |||||||||
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 18.00 | 4.10 | 0.512 895 | 0.137 716 | 11 | 0.512 625 | 469 | 7.27 | |||||||||
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 24.10 | 5.75 | 0.512 909 | 0.144 254 | 12 | 0.512 626 | 467 | 7.30 | |||||||||
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 18.60 | 4.34 | 0.512 904 | 0.141 076 | 10 | 0.512 627 | 465 | 7.32 | |||||||||
英安岩 | 84.569 186 | 45.698 525 | 300 | 14.00 | 3.04 | 0.512 886 | 0.131 286 | 11 | 0.512 628 | 462 | 7.35 | |||||||||
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 20.80 | 5.05 | 0.512 920 | 0.146 793 | 11 | 0.512 641 | 453 | 7.37 | |||||||||
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 24.90 | 6.44 | 0.512 936 | 0.156 374 | 8 | 0.512 628 | 462 | 7.37 | |||||||||
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 10.50 | 2.38 | 0.512 895 | 0.137 045 | 12 | 0.512 614 | 470 | 7.40 | |||||||||
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 10.50 | 2.78 | 0.512 944 | 0.160 079 | 12 | 0.512 616 | 466 | 7.45 | |||||||||
英安岩 | 84.594 325 | 45.708 525 | 300 | 10.00 | 2.26 | 0.512 903 | 0.136 642 | 12 | 0.512 635 | 453 | 7.47 | |||||||||
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 13.10 | 2.94 | 0.512 901 | 0.135 691 | 13 | 0.512 618 | 456 | 7.62 | |||||||||
流纹岩 | 84.580 442 | 45.693 722 | 294 | 15.20 | 3.12 | 0.512 890 | 0.124 104 | 9 | 0.512 650 | 434 | 7.65 | |||||||||
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 18.70 | 4.00 | 0.512 898 | 0.129 328 | 10 | 0.512 644 | 438 | 7.65 | |||||||||
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 19.70 | 4.74 | 0.512 934 | 0.145 476 | 9 | 0.512 648 | 431 | 7.74 | |||||||||
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 30.20 | 7.40 | 0.512 940 | 0.148 151 | 11 | 0.512 649 | 429 | 7.76 | |||||||||
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 21.90 | 5.48 | 0.512 947 | 0.151 292 | 10 | 0.512 650 | 429 | 7.77 | |||||||||
流纹岩 | 84.580 442 | 45.693 722 | 299 | 19.20 | 3.77 | 0.512 889 | 0.118 717 | 12 | 0.512 656 | 418 | 7.90 | |||||||||
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 31.20 | 7.51 | 0.512 943 | 0.145 534 | 10 | 0.512 635 | 423 | 8.07 | |||||||||
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 20.60 | 4.12 | 0.512 651 | 0.120 912 | 6 | 0.512 406 | 805 | 3.26 | |||||||||
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 19.20 | 3.52 | 0.512 704 | 0.110 836 | 12 | 0.512 486 | 689 | 4.58 | |||||||||
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 37.90 | 7.40 | 0.512 718 | 0.118 041 | 5 | 0.512 478 | 689 | 4.68 | |||||||||
英安岩 | 84.581 222 | 46.081 694 | 310 | 14.50 | 3.21 | 0.512 760 | 0.133 837 | 5 | 0.512 488 | 673 | 4.88 | |||||||||
岩性 | 经度/(°) | 纬度/(°) | 年龄/ Ma | wB/10-6 | 143Nd/144Nd | 147Sm/144Nd | 2σ/10-6 | (143Nd/144Nd)i | | εNd(t) | ||||||||||
Nd | Sm | |||||||||||||||||||
花岗岩 | 84.935 222 | 46.566 056 | 300 | 39.40 | 8.84 | 0.512 765 | 0.135 642 | 14 | 0.512 490 | 671 | 4.90 | |||||||||
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 12.30 | 2.62 | 0.512 748 | 0.128 776 | 5 | 0.512 480 | 677 | 4.91 | |||||||||
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 13.60 | 2.84 | 0.512 748 | 0.126 246 | 5 | 0.512 486 | 668 | 5.00 | |||||||||
闪长岩 | 84.406 500 | 46.042 139 | 316 | 13.10 | 2.72 | 0.512 760 | 0.125 527 | 5 | 0.512 500 | 647 | 5.26 | |||||||||
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 26.80 | 5.83 | 0.512 783 | 0.131 514 | 5 | 0.512 525 | 627 | 5.33 | |||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 30.40 | 5.97 | 0.512 771 | 0.118 724 | 10 | 0.512 538 | 607 | 5.59 | |||||||||
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 18.90 | 3.84 | 0.512 781 | 0.122 831 | 8 | 0.512 535 | 604 | 5.68 | |||||||||
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 10.50 | 2.30 | 0.512 803 | 0.132 427 | 8 | 0.512 543 | 598 | 5.69 | |||||||||
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 33.20 | 6.49 | 0.512 780 | 0.118 181 | 14 | 0.512 548 | 591 | 5.78 | |||||||||
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 18.10 | 4.44 | 0.512 845 | 0.148 301 | 7 | 0.512 554 | 581 | 5.90 | |||||||||
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 12.00 | 2.32 | 0.512 784 | 0.116 882 | 8 | 0.512 554 | 580 | 5.91 | |||||||||
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 26.50 | 6.17 | 0.512 830 | 0.140 760 | 6 | 0.512 545 | 584 | 5.96 | |||||||||
细粒花岗岩 | 84.115 889 | 45.960 806 | 300 | 22.60 | 8.99 | 0.513 036 | 0.240 486 | 12 | 0.512 564 | 567 | 6.09 | |||||||||
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 14.90 | 2.91 | 0.512 796 | 0.118 072 | 9 | 0.512 564 | 565 | 6.10 | |||||||||
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 13.90 | 2.45 | 0.512 783 | 0.106 559 | 6 | 0.512 574 | 550 | 6.29 | |||||||||
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 15.20 | 2.60 | 0.512 780 | 0.103 412 | 6 | 0.512 577 | 545 | 6.35 | |||||||||
花岗岩 | 84.419 167 | 46.096 750 | 300 | 29.10 | 6.15 | 0.512 832 | 0.127 768 | 12 | 0.512 578 | 538 | 6.47 | |||||||||
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 30.00 | 7.40 | 0.512 877 | 0.149 125 | 10 | 0.512 585 | 533 | 6.49 | |||||||||
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 36.10 | 9.23 | 0.512 892 | 0.154 573 | 6 | 0.512 594 | 524 | 6.54 | |||||||||
碱长花岗岩 | 84.448 556 | 46.145 944 | 300 | 12.60 | 4.55 | 0.513 025 | 0.218 313 | 7 | 0.512 589 | 527 | 6.71 | |||||||||
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 15.50 | 2.86 | 0.512 818 | 0.111 551 | 10 | 0.512 599 | 509 | 6.78 | |||||||||
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 40.10 | 9.06 | 0.512 866 | 0.136 591 | 5 | 0.512 591 | 513 | 6.81 | |||||||||
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 29.00 | 6.52 | 0.512 871 | 0.135 922 | 11 | 0.512 602 | 502 | 6.90 | |||||||||
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 17.60 | 3.54 | 0.512 843 | 0.121 599 | 8 | 0.512 601 | 501 | 6.92 | |||||||||
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 30.70 | 6.46 | 0.512 854 | 0.127 214 | 6 | 0.512 597 | 502 | 6.96 | |||||||||
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 35.10 | 7.51 | 0.512 864 | 0.129 352 | 6 | 0.512 611 | 492 | 6.98 | |||||||||
花岗岩 | 84.281 000 | 45.830 639 | 309 | 34.00 | 7.30 | 0.512 862 | 0.129 803 | 10 | 0.512 599 | 497 | 7.01 | |||||||||
闪长岩 | 84.539 667 | 45.473 194 | 300 | 13.90 | 3.19 | 0.512 878 | 0.138 744 | 12 | 0.512 591 | 502 | 7.02 | |||||||||
闪长岩 | 84.100 000 | 45.964 028 | 317 | 57.60 | 19.90 | 0.513 024 | 0.208 867 | 5 | 0.512 589 | 497 | 7.04 | |||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 40.40 | 8.78 | 0.512 869 | 0.131 387 | 8 | 0.512 608 | 491 | 7.05 | |||||||||
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 39.60 | 8.81 | 0.512 872 | 0.134 499 | 6 | 0.512 594 | 498 | 7.08 | |||||||||
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 24.70 | 5.73 | 0.512 892 | 0.140 248 | 12 | 0.512 617 | 481 | 7.12 | |||||||||
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 10.30 | 3.44 | 0.513 016 | 0.201 911 | 5 | 0.512 613 | 479 | 7.18 | |||||||||
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 38.30 | 8.17 | 0.512 875 | 0.128 962 | 10 | 0.512 626 | 472 | 7.18 | |||||||||
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 39.40 | 8.57 | 0.512 876 | 0.131 499 | 5 | 0.512 614 | 480 | 7.18 | |||||||||
花岗岩 | 83.661 444 | 45.772 972 | 300 | 31.50 | 6.33 | 0.512 857 | 0.121 488 | 10 | 0.512 616 | 478 | 7.18 | |||||||||
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 32.80 | 6.85 | 0.512 862 | 0.126 257 | 8 | 0.512 600 | 487 | 7.22 | |||||||||
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 17.80 | 3.78 | 0.512 873 | 0.128 384 | 8 | 0.512 612 | 476 | 7.29 | |||||||||
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 15.90 | 3.75 | 0.512 905 | 0.142 585 | 8 | 0.512 616 | 470 | 7.36 | |||||||||
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 45.50 | 8.30 | 0.512 842 | 0.110 282 | 5 | 0.512 620 | 467 | 7.38 | |||||||||
闪长岩 | 84.539 667 | 45.473 194 | 300 | 23.00 | 4.34 | 0.512 847 | 0.114 078 | 10 | 0.512 611 | 470 | 7.41 | |||||||||
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 35.60 | 7.70 | 0.512 888 | 0.130 762 | 5 | 0.512 625 | 459 | 7.47 | |||||||||
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 32.30 | 8.06 | 0.512 932 | 0.150 859 | 8 | 0.512 635 | 451 | 7.50 | |||||||||
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 35.20 | 7.50 | 0.512 895 | 0.128 813 | 12 | 0.512 646 | 440 | 7.57 | |||||||||
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 43.70 | 8.84 | 0.512 886 | 0.122 295 | 6 | 0.512 647 | 435 | 7.68 | |||||||||
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 50.90 | 9.97 | 0.512 879 | 0.118 418 | 9 | 0.512 646 | 434 | 7.71 | |||||||||
黑云母花岗岩 | 84.849 111 | 45.722 250 | 303 | 25.90 | 4.54 | 0.512 853 | 0.105 973 | 6 | 0.512 642 | 436 | 7.72 | |||||||||
花岗岩 | 84.714 278 | 45.676 000 | 313 | 15.20 | 3.15 | 0.512 888 | 0.125 287 | 8 | 0.512 631 | 442 | 7.74 | |||||||||
花岗岩 | 84.557 000 | 45.701 528 | 300 | 13.80 | 2.42 | 0.512 853 | 0.106 017 | 14 | 0.512 638 | 435 | 7.79 | |||||||||
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 20.60 | 3.44 | 0.512 885 | 0.100 956 | 12 | 0.512 679 | 367 | 8.64 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | wB/10-6 | 87Sr/86Sr | 87Rb/86Sr | 2σ/10-6 | (87Sr/86Sr)i | |
---|---|---|---|---|---|---|---|---|---|
Sr | Rb | ||||||||
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 416.00 | 110.00 | 0.706 506 | 0.764 953 | 11 | 0.703 295 |
流纹岩 | 84.580 442 | 45.693 722 | 299 | 298.00 | 66.20 | 0.706 051 | 0.642 626 | 10 | 0.703 308 |
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 346.00 | 64.60 | 0.705 645 | 0.540 077 | 10 | 0.703 339 |
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 376.00 | 38.10 | 0.704 642 | 0.293 085 | 11 | 0.703 391 |
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 524.00 | 89.30 | 0.705 574 | 0.492 965 | 17 | 0.703 376 |
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 537.00 | 91.30 | 0.705 500 | 0.491 801 | 14 | 0.703 436 |
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 523.00 | 73.40 | 0.705 198 | 0.405 952 | 11 | 0.703 465 |
英安岩 | 84.569 186 | 45.698 525 | 300 | 548.00 | 54.90 | 0.704 722 | 0.289 769 | 10 | 0.703 485 |
安山玢岩 | 84.194 450 | 45.806 958 | 300 | 445.00 | 27.10 | 0.704 255 | 0.176 136 | 10 | 0.703 503 |
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 382.00 | 22.80 | 0.704 242 | 0.172 628 | 11 | 0.703 528 |
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 512.00 | 43.80 | 0.704 634 | 0.247 435 | 10 | 0.703 510 |
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 318.00 | 92.40 | 0.707 051 | 0.840 628 | 12 | 0.703 572 |
安山玢岩 | 84.341 744 | 45.821 042 | 314 | 419.00 | 17.40 | 0.704 083 | 0.120 107 | 11 | 0.703 545 |
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 509.00 | 117.00 | 0.706 533 | 0.664 974 | 11 | 0.703 568 |
英安岩 | 84.594 325 | 45.708 525 | 300 | 684.00 | 38.10 | 0.704 276 | 0.161 105 | 11 | 0.703 589 |
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 406.00 | 33.70 | 0.704 694 | 0.240 084 | 8 | 0.703 588 |
流纹岩 | 84.580 442 | 45.693 722 | 294 | 113.00 | 83.30 | 0.712 579 | 2.133 832 | 10 | 0.703 625 |
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 417.00 | 46.40 | 0.705 081 | 0.321 853 | 14 | 0.703 620 |
英安岩 | 83.645 589 | 45.782 686 | 323 | 301.00 | 129.00 | 0.709 335 | 1.240 164 | 9 | 0.703 623 |
英安岩 | 83.645 589 | 45.782 686 | 329 | 505.00 | 133.00 | 0.707 198 | 0.761 948 | 8 | 0.703 619 |
闪长岩 | 83.764 833 | 45.594 139 | 300 | 569.00 | 38.40 | 0.704 514 | 0.195 196 | 11 | 0.703 680 |
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 377.00 | 30.40 | 0.704 720 | 0.233 234 | 19 | 0.703 724 |
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 494.00 | 55.10 | 0.705 124 | 0.322 628 | 9 | 0.703 747 |
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 265.00 | 41.70 | 0.705 709 | 0.455 189 | 7 | 0.703 766 |
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 694.00 | 39.00 | 0.704 495 | 0.162 538 | 14 | 0.703 835 |
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 753.00 | 40.50 | 0.704 484 | 0.155 564 | 13 | 0.703 820 |
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 539.00 | 21.70 | 0.704 439 | 0.116 444 | 10 | 0.703 940 |
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 511.00 | 70.70 | 0.705 714 | 0.400 222 | 11 | 0.704 006 |
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 663.00 | 27.20 | 0.704 631 | 0.118 662 | 13 | 0.704 146 |
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 589.00 | 34.20 | 0.704 862 | 0.167 949 | 11 | 0.704 173 |
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 579.00 | 60.80 | 0.705 604 | 0.303 754 | 10 | 0.704 302 |
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 884.00 | 9.48 | 0.704 751 | 0.031 018 | 9 | 0.704 618 |
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 586.00 | 105.00 | 0.706 844 | 0.518 372 | 10 | 0.704 631 |
流纹岩 | 84.405 400 | 45.925 917 | 335 | 544.00 | 30.90 | 0.705 445 | 0.164 305 | 11 | 0.704 660 |
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 236.00 | 78.60 | 0.710 611 | 0.963 875 | 11 | 0.706 503 |
花岗岩 | 84.281 000 | 45.830 639 | 309 | 27.10 | 65.00 | 0.729 277 | 6.945 166 | 14 | 0.698 736 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 30.50 | 64.80 | 0.726 353 | 6.151 963 | 15 | 0.699 642 |
花岗岩 | 83.661 444 | 45.772 972 | 300 | 36.00 | 115.00 | 0.739 590 | 9.249 833 | 15 | 0.699 746 |
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 43.60 | 114.00 | 0.732 778 | 7.571 064 | 14 | 0.700 165 |
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 42.30 | 111.00 | 0.732 617 | 7.598 383 | 13 | 0.700 222 |
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 40.90 | 87.00 | 0.727 859 | 6.159 345 | 15 | 0.700 782 |
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 47.70 | 133.00 | 0.735 898 | 8.073 686 | 14 | 0.700 947 |
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 57.10 | 121.00 | 0.728 000 | 6.136 035 | 15 | 0.701 148 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | wB/10-6 | 87Sr/86Sr | 87Rb/86Sr | 2σ/10-6 | (87Sr/86Sr)i | |
Sr | Rb | ||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 56.20 | 129.00 | 0.730 213 | 6.646 484 | 15 | 0.701 478 |
闪长岩 | 84.100 000 | 45.964 028 | 317 | 65.80 | 121.00 | 0.725 691 | 5.324 736 | 13 | 0.701 607 |
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 44.90 | 100.00 | 0.729 181 | 6.448 998 | 13 | 0.701 686 |
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 55.20 | 103.00 | 0.724 584 | 5.403 022 | 14 | 0.701 926 |
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 44.30 | 107.00 | 0.731 366 | 6.993 887 | 7 | 0.702 077 |
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 45.30 | 80.00 | 0.723 812 | 5.113 642 | 14 | 0.702 084 |
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 25.90 | 66.50 | 0.733 915 | 7.434 649 | 15 | 0.702 176 |
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 46.60 | 107.00 | 0.731 823 | 6.648 695 | 14 | 0.702 728 |
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 80.40 | 82.10 | 0.715 788 | 2.956 825 | 6 | 0.703 144 |
花岗岩 | 84.419 167 | 46.096 750 | 300 | 114.00 | 112.00 | 0.715 467 | 2.844 800 | 14 | 0.703 160 |
花岗岩 | 84.714 278 | 45.676 000 | 313 | 307.00 | 74.70 | 0.706 438 | 0.704 565 | 14 | 0.703 297 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 549.00 | 201.00 | 0.708 061 | 1.060 138 | 9 | 0.703 296 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 187.00 | 103.00 | 0.710 212 | 1.594 903 | 15 | 0.703 403 |
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 69.80 | 80.80 | 0.718 499 | 3.351 927 | 14 | 0.703 396 |
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 475.00 | 19.00 | 0.703 966 | 0.115 824 | 14 | 0.703 455 |
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 201.00 | 96.40 | 0.709 374 | 1.388 736 | 12 | 0.703 477 |
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 432.00 | 42.90 | 0.704 764 | 0.287 549 | 14 | 0.703 495 |
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 230.00 | 59.70 | 0.706 794 | 0.751 597 | 15 | 0.703 506 |
花岗岩 | 84.557 000 | 45.701 528 | 300 | 309.00 | 80.60 | 0.706 846 | 0.755 292 | 14 | 0.703 514 |
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 137.00 | 92.10 | 0.712 084 | 1.946 604 | 14 | 0.703 527 |
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 207.00 | 80.40 | 0.708 635 | 1.124 668 | 12 | 0.703 577 |
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 360.00 | 46.50 | 0.705 276 | 0.374 015 | 9 | 0.703 615 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 521.00 | 81.10 | 0.705 639 | 0.450 735 | 14 | 0.703 613 |
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 580.00 | 32.30 | 0.704 374 | 0.161 255 | 15 | 0.703 686 |
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 42.10 | 106.00 | 0.735 299 | 7.290 584 | 6 | 0.703 759 |
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 352.00 | 39.10 | 0.705 120 | 0.321 642 | 13 | 0.703 771 |
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 395.00 | 81.70 | 0.706 331 | 0.598 913 | 13 | 0.703 774 |
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 361.00 | 68.80 | 0.706 206 | 0.551 848 | 15 | 0.703 804 |
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 746.00 | 31.30 | 0.704 345 | 0.121 491 | 13 | 0.703 826 |
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 581.00 | 44.80 | 0.704 809 | 0.223 275 | 15 | 0.703 856 |
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 544.00 | 59.30 | 0.705 273 | 0.315 642 | 15 | 0.703 925 |
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 357.00 | 55.30 | 0.705 905 | 0.448 534 | 15 | 0.703 990 |
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 760.00 | 43.10 | 0.704 822 | 0.164 211 | 13 | 0.704 121 |
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 225.00 | 72.00 | 0.708 285 | 0.926 592 | 8 | 0.704 105 |
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 433.00 | 47.80 | 0.705 666 | 0.319 653 | 13 | 0.704 220 |
闪长岩 | 84.406 500 | 46.042 139 | 316 | 355.00 | 45.80 | 0.706 035 | 0.373 573 | 13 | 0.704 353 |
英安岩 | 84.581 222 | 46.081 694 | 310 | 194.00 | 90.90 | 0.710 423 | 1.356 753 | 15 | 0.704 424 |
花岗岩 | 84.935 222 | 46.566 056 | 300 | 45.80 | 68.10 | 0.723 606 | 4.305 466 | 15 | 0.704 612 |
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 163.00 | 34.10 | 0.707 440 | 0.605 767 | 12 | 0.704 854 |
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 464.00 | 85.40 | 0.707 291 | 0.532 940 | 14 | 0.704 940 |
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 117.00 | 96.50 | 0.716 373 | 2.388 251 | 13 | 0.706 177 |
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 122.00 | 80.60 | 0.714 443 | 1.912 995 | 12 | 0.706 276 |
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 100.00 | 145.00 | 0.726 324 | 4.198 620 | 11 | 0.707 801 |
表2 西准噶尔地区花岗岩类Sr同位素测试与计算数据
Table 2 Sr Isotope analysis and calculation results for granites from West Junggar
岩性 | 经度/(°) | 纬度/(°) | t/Ma | wB/10-6 | 87Sr/86Sr | 87Rb/86Sr | 2σ/10-6 | (87Sr/86Sr)i | |
---|---|---|---|---|---|---|---|---|---|
Sr | Rb | ||||||||
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 416.00 | 110.00 | 0.706 506 | 0.764 953 | 11 | 0.703 295 |
流纹岩 | 84.580 442 | 45.693 722 | 299 | 298.00 | 66.20 | 0.706 051 | 0.642 626 | 10 | 0.703 308 |
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 346.00 | 64.60 | 0.705 645 | 0.540 077 | 10 | 0.703 339 |
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 376.00 | 38.10 | 0.704 642 | 0.293 085 | 11 | 0.703 391 |
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 524.00 | 89.30 | 0.705 574 | 0.492 965 | 17 | 0.703 376 |
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 537.00 | 91.30 | 0.705 500 | 0.491 801 | 14 | 0.703 436 |
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 523.00 | 73.40 | 0.705 198 | 0.405 952 | 11 | 0.703 465 |
英安岩 | 84.569 186 | 45.698 525 | 300 | 548.00 | 54.90 | 0.704 722 | 0.289 769 | 10 | 0.703 485 |
安山玢岩 | 84.194 450 | 45.806 958 | 300 | 445.00 | 27.10 | 0.704 255 | 0.176 136 | 10 | 0.703 503 |
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 382.00 | 22.80 | 0.704 242 | 0.172 628 | 11 | 0.703 528 |
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 512.00 | 43.80 | 0.704 634 | 0.247 435 | 10 | 0.703 510 |
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 318.00 | 92.40 | 0.707 051 | 0.840 628 | 12 | 0.703 572 |
安山玢岩 | 84.341 744 | 45.821 042 | 314 | 419.00 | 17.40 | 0.704 083 | 0.120 107 | 11 | 0.703 545 |
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 509.00 | 117.00 | 0.706 533 | 0.664 974 | 11 | 0.703 568 |
英安岩 | 84.594 325 | 45.708 525 | 300 | 684.00 | 38.10 | 0.704 276 | 0.161 105 | 11 | 0.703 589 |
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 406.00 | 33.70 | 0.704 694 | 0.240 084 | 8 | 0.703 588 |
流纹岩 | 84.580 442 | 45.693 722 | 294 | 113.00 | 83.30 | 0.712 579 | 2.133 832 | 10 | 0.703 625 |
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 417.00 | 46.40 | 0.705 081 | 0.321 853 | 14 | 0.703 620 |
英安岩 | 83.645 589 | 45.782 686 | 323 | 301.00 | 129.00 | 0.709 335 | 1.240 164 | 9 | 0.703 623 |
英安岩 | 83.645 589 | 45.782 686 | 329 | 505.00 | 133.00 | 0.707 198 | 0.761 948 | 8 | 0.703 619 |
闪长岩 | 83.764 833 | 45.594 139 | 300 | 569.00 | 38.40 | 0.704 514 | 0.195 196 | 11 | 0.703 680 |
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 377.00 | 30.40 | 0.704 720 | 0.233 234 | 19 | 0.703 724 |
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 494.00 | 55.10 | 0.705 124 | 0.322 628 | 9 | 0.703 747 |
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 265.00 | 41.70 | 0.705 709 | 0.455 189 | 7 | 0.703 766 |
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 694.00 | 39.00 | 0.704 495 | 0.162 538 | 14 | 0.703 835 |
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 753.00 | 40.50 | 0.704 484 | 0.155 564 | 13 | 0.703 820 |
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 539.00 | 21.70 | 0.704 439 | 0.116 444 | 10 | 0.703 940 |
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 511.00 | 70.70 | 0.705 714 | 0.400 222 | 11 | 0.704 006 |
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 663.00 | 27.20 | 0.704 631 | 0.118 662 | 13 | 0.704 146 |
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 589.00 | 34.20 | 0.704 862 | 0.167 949 | 11 | 0.704 173 |
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 579.00 | 60.80 | 0.705 604 | 0.303 754 | 10 | 0.704 302 |
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 884.00 | 9.48 | 0.704 751 | 0.031 018 | 9 | 0.704 618 |
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 586.00 | 105.00 | 0.706 844 | 0.518 372 | 10 | 0.704 631 |
流纹岩 | 84.405 400 | 45.925 917 | 335 | 544.00 | 30.90 | 0.705 445 | 0.164 305 | 11 | 0.704 660 |
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 236.00 | 78.60 | 0.710 611 | 0.963 875 | 11 | 0.706 503 |
花岗岩 | 84.281 000 | 45.830 639 | 309 | 27.10 | 65.00 | 0.729 277 | 6.945 166 | 14 | 0.698 736 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 30.50 | 64.80 | 0.726 353 | 6.151 963 | 15 | 0.699 642 |
花岗岩 | 83.661 444 | 45.772 972 | 300 | 36.00 | 115.00 | 0.739 590 | 9.249 833 | 15 | 0.699 746 |
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 43.60 | 114.00 | 0.732 778 | 7.571 064 | 14 | 0.700 165 |
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 42.30 | 111.00 | 0.732 617 | 7.598 383 | 13 | 0.700 222 |
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 40.90 | 87.00 | 0.727 859 | 6.159 345 | 15 | 0.700 782 |
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 47.70 | 133.00 | 0.735 898 | 8.073 686 | 14 | 0.700 947 |
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 57.10 | 121.00 | 0.728 000 | 6.136 035 | 15 | 0.701 148 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | wB/10-6 | 87Sr/86Sr | 87Rb/86Sr | 2σ/10-6 | (87Sr/86Sr)i | |
Sr | Rb | ||||||||
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 56.20 | 129.00 | 0.730 213 | 6.646 484 | 15 | 0.701 478 |
闪长岩 | 84.100 000 | 45.964 028 | 317 | 65.80 | 121.00 | 0.725 691 | 5.324 736 | 13 | 0.701 607 |
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 44.90 | 100.00 | 0.729 181 | 6.448 998 | 13 | 0.701 686 |
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 55.20 | 103.00 | 0.724 584 | 5.403 022 | 14 | 0.701 926 |
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 44.30 | 107.00 | 0.731 366 | 6.993 887 | 7 | 0.702 077 |
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 45.30 | 80.00 | 0.723 812 | 5.113 642 | 14 | 0.702 084 |
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 25.90 | 66.50 | 0.733 915 | 7.434 649 | 15 | 0.702 176 |
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 46.60 | 107.00 | 0.731 823 | 6.648 695 | 14 | 0.702 728 |
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 80.40 | 82.10 | 0.715 788 | 2.956 825 | 6 | 0.703 144 |
花岗岩 | 84.419 167 | 46.096 750 | 300 | 114.00 | 112.00 | 0.715 467 | 2.844 800 | 14 | 0.703 160 |
花岗岩 | 84.714 278 | 45.676 000 | 313 | 307.00 | 74.70 | 0.706 438 | 0.704 565 | 14 | 0.703 297 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 549.00 | 201.00 | 0.708 061 | 1.060 138 | 9 | 0.703 296 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 187.00 | 103.00 | 0.710 212 | 1.594 903 | 15 | 0.703 403 |
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 69.80 | 80.80 | 0.718 499 | 3.351 927 | 14 | 0.703 396 |
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 475.00 | 19.00 | 0.703 966 | 0.115 824 | 14 | 0.703 455 |
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 201.00 | 96.40 | 0.709 374 | 1.388 736 | 12 | 0.703 477 |
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 432.00 | 42.90 | 0.704 764 | 0.287 549 | 14 | 0.703 495 |
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 230.00 | 59.70 | 0.706 794 | 0.751 597 | 15 | 0.703 506 |
花岗岩 | 84.557 000 | 45.701 528 | 300 | 309.00 | 80.60 | 0.706 846 | 0.755 292 | 14 | 0.703 514 |
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 137.00 | 92.10 | 0.712 084 | 1.946 604 | 14 | 0.703 527 |
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 207.00 | 80.40 | 0.708 635 | 1.124 668 | 12 | 0.703 577 |
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 360.00 | 46.50 | 0.705 276 | 0.374 015 | 9 | 0.703 615 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 521.00 | 81.10 | 0.705 639 | 0.450 735 | 14 | 0.703 613 |
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 580.00 | 32.30 | 0.704 374 | 0.161 255 | 15 | 0.703 686 |
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 42.10 | 106.00 | 0.735 299 | 7.290 584 | 6 | 0.703 759 |
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 352.00 | 39.10 | 0.705 120 | 0.321 642 | 13 | 0.703 771 |
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 395.00 | 81.70 | 0.706 331 | 0.598 913 | 13 | 0.703 774 |
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 361.00 | 68.80 | 0.706 206 | 0.551 848 | 15 | 0.703 804 |
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 746.00 | 31.30 | 0.704 345 | 0.121 491 | 13 | 0.703 826 |
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 581.00 | 44.80 | 0.704 809 | 0.223 275 | 15 | 0.703 856 |
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 544.00 | 59.30 | 0.705 273 | 0.315 642 | 15 | 0.703 925 |
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 357.00 | 55.30 | 0.705 905 | 0.448 534 | 15 | 0.703 990 |
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 760.00 | 43.10 | 0.704 822 | 0.164 211 | 13 | 0.704 121 |
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 225.00 | 72.00 | 0.708 285 | 0.926 592 | 8 | 0.704 105 |
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 433.00 | 47.80 | 0.705 666 | 0.319 653 | 13 | 0.704 220 |
闪长岩 | 84.406 500 | 46.042 139 | 316 | 355.00 | 45.80 | 0.706 035 | 0.373 573 | 13 | 0.704 353 |
英安岩 | 84.581 222 | 46.081 694 | 310 | 194.00 | 90.90 | 0.710 423 | 1.356 753 | 15 | 0.704 424 |
花岗岩 | 84.935 222 | 46.566 056 | 300 | 45.80 | 68.10 | 0.723 606 | 4.305 466 | 15 | 0.704 612 |
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 163.00 | 34.10 | 0.707 440 | 0.605 767 | 12 | 0.704 854 |
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 464.00 | 85.40 | 0.707 291 | 0.532 940 | 14 | 0.704 940 |
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 117.00 | 96.50 | 0.716 373 | 2.388 251 | 13 | 0.706 177 |
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 122.00 | 80.60 | 0.714 443 | 1.912 995 | 12 | 0.706 276 |
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 100.00 | 145.00 | 0.726 324 | 4.198 620 | 11 | 0.707 801 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | 208Pb/204Pb | 2s/ 10-4 | 207Pb/204Pb | 2s/ 10-4 | 206Pb/204Pb | 2s/ 10-4 | (208Pb/ 204Pb)i | (207Pb/ 204Pb)i | (206Pb/ 204Pb)i |
---|---|---|---|---|---|---|---|---|---|---|---|---|
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 38.990 8 | 16 | 15.633 2 | 7 | 18.881 6 | 8 | 37.963 2 | 15.614 9 | 18.530 4 |
安山玢岩 | 83.793 444 | 45.582 389 | 300 | 38.919 5 | 23 | 15.632 0 | 9 | 18.955 0 | 11 | 38.225 6 | 15.605 8 | 18.455 5 |
流纹岩 | 84.580 442 | 45.693 722 | 299 | 38.387 9 | 23 | 15.562 6 | 9 | 18.637 8 | 11 | 37.779 9 | 15.546 4 | 18.328 0 |
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 38.897 5 | 34 | 15.594 4 | 13 | 19.024 7 | 16 | 38.183 3 | 15.556 1 | 18.291 5 |
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 38.642 6 | 25 | 15.567 8 | 10 | 18.638 1 | 11 | 37.921 5 | 15.547 3 | 18.246 6 |
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 38.848 2 | 30 | 15.608 3 | 12 | 19.296 0 | 13 | 37.794 9 | 15.550 7 | 18.205 0 |
流纹岩 | 84.580 442 | 45.693 722 | 294 | 38.253 7 | 19 | 15.556 9 | 7 | 18.454 0 | 8 | 37.972 8 | 15.540 7 | 18.142 5 |
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 38.789 5 | 13 | 15.636 3 | 5 | 18.890 6 | 6 | 37.929 0 | 15.597 1 | 18.136 3 |
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 38.454 4 | 17 | 15.604 7 | 6 | 18.620 6 | 7 | 38.036 4 | 15.579 0 | 18.127 8 |
中酸性岩墙 | 82.569 083 | 45.551 167 | 300 | 38.536 6 | 17 | 15.610 9 | 7 | 18.425 9 | 7 | 37.994 9 | 15.590 7 | 18.034 4 |
闪长岩 | 83.764 833 | 45.594 139 | 300 | 38.571 2 | 14 | 15.578 4 | 5 | 18.615 4 | 6 | 37.859 1 | 15.547 8 | 18.030 3 |
流纹岩 | 84.405 400 | 45.925 917 | 335 | 38.316 7 | 23 | 15.583 4 | 9 | 18.314 7 | 9 | 38.009 1 | 15.567 9 | 18.023 6 |
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 38.446 9 | 19 | 15.613 9 | 7 | 18.642 8 | 9 | 37.993 1 | 15.581 5 | 18.020 8 |
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 39.338 5 | 10 | 15.627 6 | 4 | 19.831 8 | 5 | 37.644 1 | 15.531 3 | 17.987 6 |
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 38.472 4 | 23 | 15.592 9 | 8 | 18.442 0 | 9 | 37.877 1 | 15.569 0 | 17.983 6 |
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 38.455 0 | 14 | 15.598 1 | 5 | 18.541 4 | 6 | 38.058 1 | 15.568 6 | 17.981 6 |
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 38.108 5 | 27 | 15.543 6 | 11 | 18.220 2 | 12 | 37.864 6 | 15.530 3 | 17.967 0 |
花岗斑岩 | 83.841 861 | 45.610 778 | 300 | 38.642 9 | 25 | 15.582 7 | 9 | 18.641 5 | 10 | 37.804 5 | 15.547 0 | 17.960 0 |
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 38.033 2 | 15 | 15.543 7 | 7 | 18.122 5 | 8 | 37.876 5 | 15.534 1 | 17.939 8 |
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 38.325 0 | 13 | 15.563 5 | 5 | 18.365 6 | 6 | 37.842 6 | 15.541 0 | 17.936 0 |
英安岩 | 83.645 589 | 45.782 686 | 323 | 38.610 7 | 27 | 15.579 5 | 10 | 18.706 4 | 12 | 37.742 3 | 15.538 7 | 17.934 3 |
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 38.429 8 | 16 | 15.593 9 | 7 | 18.482 3 | 7 | 37.901 8 | 15.565 3 | 17.933 7 |
英安岩 | 83.645 589 | 45.782 686 | 329 | 38.297 4 | 24 | 15.556 1 | 9 | 18.298 8 | 10 | 37.866 1 | 15.536 6 | 17.929 9 |
英安岩 | 84.569 186 | 45.698 525 | 300 | 38.271 2 | 19 | 15.531 8 | 9 | 18.422 8 | 9 | 37.836 9 | 15.505 7 | 17.925 8 |
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 38.108 3 | 14 | 15.562 4 | 5 | 18.163 2 | 6 | 37.909 5 | 15.549 7 | 17.922 8 |
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 38.103 7 | 22 | 15.545 1 | 9 | 18.186 5 | 10 | 37.870 3 | 15.531 1 | 17.918 8 |
英安岩 | 84.594 325 | 45.708 525 | 300 | 38.274 8 | 25 | 15.552 2 | 9 | 18.438 8 | 11 | 37.865 2 | 15.524 8 | 17.914 4 |
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 38.398 6 | 24 | 15.566 9 | 10 | 18.520 2 | 11 | 37.856 3 | 15.535 0 | 17.910 9 |
安山玢岩 | 84.194 450 | 45.806 958 | 300 | 38.257 4 | 47 | 15.580 3 | 19 | 18.285 4 | 22 | 37.939 6 | 15.560 3 | 17.903 4 |
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 38.049 3 | 19 | 15.538 0 | 7 | 18.165 3 | 8 | 37.827 6 | 15.524 1 | 17.902 2 |
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 38.304 2 | 20 | 15.550 5 | 9 | 18.418 2 | 10 | 37.840 5 | 15.523 0 | 17.892 0 |
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 38.307 0 | 20 | 15.558 4 | 9 | 18.374 3 | 9 | 37.887 3 | 15.532 7 | 17.883 6 |
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 38.363 8 | 18 | 15.597 3 | 7 | 18.459 1 | 8 | 37.851 8 | 15.567 0 | 17.881 1 |
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 39.038 9 | 40 | 15.615 1 | 16 | 19.176 6 | 18 | 37.874 7 | 15.546 6 | 17.867 4 |
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 38.436 0 | 30 | 15.573 0 | 12 | 18.544 8 | 12 | 37.822 1 | 15.536 4 | 17.843 4 |
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 38.335 7 | 43 | 15.601 0 | 14 | 18.326 9 | 12 | 37.919 9 | 15.574 3 | 17.817 2 |
安山玢岩 | 84.341 744 | 45.821 042 | 314 | 38.122 5 | 36 | 15.534 6 | 14 | 18.265 1 | 17 | 37.738 4 | 15.505 8 | 17.719 3 |
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 39.947 1 | 16 | 15.687 1 | 6 | 20.149 9 | 8 | 37.446 0 | 15.557 2 | 17.688 3 |
花岗岩 | 84.557 000 | 45.701 528 | 300 | 38.837 5 | 23 | 15.588 9 | 9 | 19.649 4 | 11 | 37.381 7 | 15.556 6 | 19.035 2 |
细粒花岗岩 | 84.115 889 | 45.960 806 | 300 | 39.082 1 | 24 | 15.579 6 | 9 | 19.167 7 | 11 | 37.820 8 | 15.547 0 | 18.545 2 |
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 38.585 1 | 19 | 15.564 6 | 7 | 18.907 6 | 8 | 37.866 5 | 15.545 3 | 18.539 8 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 38.703 6 | 20 | 15.575 5 | 7 | 18.759 2 | 10 | 37.718 7 | 15.556 9 | 18.404 2 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 38.395 5 | 21 | 15.554 8 | 8 | 18.870 6 | 8 | 37.639 8 | 15.530 0 | 18.397 0 |
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 38.398 3 | 16 | 15.535 4 | 6 | 18.559 0 | 7 | 37.729 3 | 15.523 7 | 18.335 7 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | 208Pb/204Pb | 2s/ 10-4 | 207Pb/204Pb | 2s/ 10-4 | 206Pb/204Pb | 2s/ 10-4 | (208Pb/ 204Pb)i | (207Pb/ 204Pb)i | (206Pb/ 204Pb)i |
碱长花岗岩 | 84.448 556 | 46.145 944 | 300 | 38.223 0 | 26 | 15.544 9 | 11 | 18.794 9 | 14 | 37.748 9 | 15.520 1 | 18.321 6 |
花岗岩 | 84.419 167 | 46.096 750 | 300 | 38.6212 | 15 | 15.552 6 | 6 | 18.688 0 | 7 | 37.783 5 | 15.533 0 | 18.313 9 |
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 38.375 6 | 19 | 15.548 9 | 6 | 18.805 1 | 7 | 37.647 5 | 15.523 0 | 18.310 7 |
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 38.521 4 | 18 | 15.536 7 | 8 | 18.892 8 | 8 | 37.678 8 | 15.50 8 | 18.301 7 |
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 38.427 4 | 16 | 15.601 2 | 6 | 18.484 3 | 7 | 38.034 7 | 15.591 3 | 18.296 1 |
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 38.348 4 | 15 | 15.556 3 | 5 | 18.595 4 | 6 | 37.630 0 | 15.539 6 | 18.278 2 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 310 | 38.436 6 | 22 | 15.565 0 | 8 | 18.668 2 | 11 | 37.399 9 | 15.542 4 | 18.238 2 |
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 38.218 4 | 19 | 15.534 8 | 7 | 18.572 3 | 8 | 37.558 6 | 15.517 2 | 18.236 5 |
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 38.632 9 | 22 | 5.542 2 | 6 | 18.581 3 | 10 | 37.806 9 | 5.523 7 | 18.228 2 |
花岗岩 | 84.281 000 | 45.830 639 | 309 | 38.411 6 | 19 | 15.5460 | 7 | 18.486 7 | 7 | 37.703 7 | 15.532 3 | 18.226 6 |
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 38.399 9 | 19 | 15.552 4 | 7 | 18.458 9 | 7 | 37.829 0 | 15.539 1 | 18.206 3 |
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 38.043 5 | 13 | 15.521 2 | 4 | 18.424 9 | 5 | 37.717 3 | 15.509 7 | 18.204 9 |
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 38.389 2 | 15 | 15.539 6 | 7 | 18.507 1 | 7 | 37.708 8 | 15.523 6 | 18.202 1 |
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 38.538 4 | 20 | 15.540 0 | 7 | 18.648 5 | 10 | 37.794 2 | 15.516 0 | 18.193 5 |
闪长岩 | 84.406 500 | 46.042 139 | 316 | 38.328 7 | 7 | 15.544 8 | 4 | 18.436 5 | 4 | 37.832 0 | 15.531 4 | 18.181 7 |
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 38.369 8 | 15 | 15.540 2 | 6 | 18.463 1 | 6 | 37.772 7 | 15.525 4 | 18.178 9 |
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 38.565 6 | 17 | 15.587 7 | 8 | 18.700 8 | 9 | 37.767 9 | 15.560 1 | 18.172 6 |
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 38.431 1 | 24 | 15.544 5 | 10 | 18.543 4 | 11 | 37.766 8 | 15.524 5 | 18.160 8 |
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 38.569 3 | 21 | 15.573 5 | 7 | 18.593 6 | 9 | 37.881 6 | 15.550 0 | 18.144 3 |
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 38.200 2 | 23 | 15.538 2 | 8 | 18.539 4 | 9 | 37.745 6 | 15.517 4 | 18.141 4 |
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 38.666 3 | 18 | 15.549 5 | 5 | 18.632 7 | 9 | 37.759 4 | 15.523 4 | 18.134 9 |
花岗岩 | 83.661 444 | 45.772 972 | 300 | 38.841 7 | 28 | 15.563 4 | 11 | 18.851 0 | 13 | 37.917 3 | 15.525 4 | 18.125 2 |
花岗岩 | 84.714 278 | 45.676 000 | 313 | 38.482 7 | 14 | 15.535 1 | 6 | 18.634 1 | 7 | 37.783 4 | 15.508 1 | 18.120 7 |
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 38.419 1 | 29 | 15.542 0 | 10 | 18.567 7 | 10 | 37.559 3 | 15.518 4 | 18.116 9 |
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 38.383 4 | 30 | 15.536 8 | 12 | 18.431 9 | 17 | 37.706 1 | 15.519 9 | 18.109 4 |
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 38.135 2 | 19 | 15.518 8 | 7 | 18.413 0 | 8 | 37.748 3 | 15.502 9 | 18.107 9 |
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 38.404 2 | 33 | 15.547 7 | 12 | 18.564 6 | 15 | 37.765 2 | 15.523 4 | 18.101 0 |
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 38.355 9 | 22 | 15.574 4 | 9 | 18.406 2 | 10 | 37.950 7 | 15.557 2 | 18.079 3 |
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 38.214 0 | 22 | 15.531 9 | 8 | 18.299 3 | 10 | 37.734 0 | 15.519 5 | 18.063 4 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 37.944 1 | 13 | 15.526 0 | 5 | 18.616 4 | 6 | 37.381 9 | 15.496 4 | 18.051 5 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 39.606 1 | 54 | 15.743 8 | 19 | 22.296 3 | 27 | 37.713 7 | 15.519 8 | 18.046 5 |
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 37.931 1 | 18 | 15.521 3 | 7 | 18.121 3 | 8 | 37.855 8 | 15.516 8 | 18.035 5 |
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 38.349 4 | 23 | 15.536 6 | 9 | 18.467 9 | 9 | 37.725 4 | 15.513 8 | 18.033 6 |
花岗岩 | 84.935 222 | 46.566 056 | 300 | 38.305 4 | 27 | 15.557 4 | 10 | 18.433 7 | 11 | 37.852 3 | 15.536 3 | 18.033 1 |
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 38.250 2 | 28 | 15.526 0 | 11 | 18.277 6 | 13 | 37.560 6 | 15.512 9 | 18.026 6 |
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 38.224 6 | 17 | 15.535 9 | 6 | 18.348 1 | 7 | 37.815 6 | 15.518 4 | 18.016 6 |
黑云母花岗岩 | 84.849 111 | 45.722 250 | 303 | 38.167 6 | 27 | 15.522 2 | 10 | 18.308 4 | 10 | 37.832 9 | 15.506 7 | 18.012 5 |
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 39.540 1 | 20 | 15.605 1 | 7 | 19.708 8 | 7 | 37.358 4 | 15.515 9 | 18.005 1 |
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 38.261 3 | 22 | 15.525 8 | 8 | 18.379 9 | 8 | 37.871 4 | 15.506 0 | 18.003 6 |
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 38.223 7 | 17 | 15.542 9 | 6 | 18.465 2 | 5 | 37.667 8 | 15.518 6 | 18.000 0 |
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 38.032 4 | 17 | 15.514 7 | 6 | 18.376 9 | 7 | 37.733 3 | 15.494 7 | 17.995 3 |
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 37.974 1 | 21 | 15.513 1 | 7 | 18.125 4 | 8 | 37.760 1 | 15.505 4 | 17.979 0 |
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 38.170 3 | 21 | 15.575 4 | 7 | 18.192 1 | 8 | 37.950 2 | 15.564 1 | 17.976 5 |
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 38.334 1 | 13 | 15.517 3 | 5 | 18.438 3 | 5 | 37.684 3 | 15.491 7 | 17.949 0 |
闪长岩 | 84.100 000 | 45.964 028 | 317 | 38.208 0 | 18 | 15.540 7 | 7 | 18.436 3 | 8 | 37.807 1 | 15.513 5 | 17.920 4 |
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 38.240 5 | 17 | 15.543 7 | 6 | 18.477 5 | 7 | 37.791 6 | 15.514 2 | 17.918 2 |
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 38.640 9 | 19 | 15.519 0 | 7 | 18.396 8 | 7 | 37.446 6 | 15.492 5 | 17.892 9 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 39.364 0 | 31 | 15.593 1 | 9 | 19.516 2 | 15 | 37.788 4 | 15.502 5 | 17.796 8 |
表3 西准噶尔地区花岗岩类Pb同位素测试与计算数据
Table 3 Pb isotope analysis and calculation results for granites from West Junggar
岩性 | 经度/(°) | 纬度/(°) | t/Ma | 208Pb/204Pb | 2s/ 10-4 | 207Pb/204Pb | 2s/ 10-4 | 206Pb/204Pb | 2s/ 10-4 | (208Pb/ 204Pb)i | (207Pb/ 204Pb)i | (206Pb/ 204Pb)i |
---|---|---|---|---|---|---|---|---|---|---|---|---|
二长花岗岩 | 83.180 250 | 45.402 083 | 290 | 38.990 8 | 16 | 15.633 2 | 7 | 18.881 6 | 8 | 37.963 2 | 15.614 9 | 18.530 4 |
安山玢岩 | 83.793 444 | 45.582 389 | 300 | 38.919 5 | 23 | 15.632 0 | 9 | 18.955 0 | 11 | 38.225 6 | 15.605 8 | 18.455 5 |
流纹岩 | 84.580 442 | 45.693 722 | 299 | 38.387 9 | 23 | 15.562 6 | 9 | 18.637 8 | 11 | 37.779 9 | 15.546 4 | 18.328 0 |
中酸性岩墙 | 83.561 997 | 45.710 756 | 300 | 38.897 5 | 34 | 15.594 4 | 13 | 19.024 7 | 16 | 38.183 3 | 15.556 1 | 18.291 5 |
石英闪长岩 | 84.932 033 | 45.733 767 | 299 | 38.642 6 | 25 | 15.567 8 | 10 | 18.638 1 | 11 | 37.921 5 | 15.547 3 | 18.246 6 |
安山玢岩 | 84.553 683 | 45.692 581 | 319 | 38.848 2 | 30 | 15.608 3 | 12 | 19.296 0 | 13 | 37.794 9 | 15.550 7 | 18.205 0 |
流纹岩 | 84.580 442 | 45.693 722 | 294 | 38.253 7 | 19 | 15.556 9 | 7 | 18.454 0 | 8 | 37.972 8 | 15.540 7 | 18.142 5 |
斜长花岗岩 | 83.180 972 | 45.384 000 | 285 | 38.789 5 | 13 | 15.636 3 | 5 | 18.890 6 | 6 | 37.929 0 | 15.597 1 | 18.136 3 |
花岗斑岩 | 83.128 250 | 45.363 944 | 288 | 38.454 4 | 17 | 15.604 7 | 6 | 18.620 6 | 7 | 38.036 4 | 15.579 0 | 18.127 8 |
中酸性岩墙 | 82.569 083 | 45.551 167 | 300 | 38.536 6 | 17 | 15.610 9 | 7 | 18.425 9 | 7 | 37.994 9 | 15.590 7 | 18.034 4 |
闪长岩 | 83.764 833 | 45.594 139 | 300 | 38.571 2 | 14 | 15.578 4 | 5 | 18.615 4 | 6 | 37.859 1 | 15.547 8 | 18.030 3 |
流纹岩 | 84.405 400 | 45.925 917 | 335 | 38.316 7 | 23 | 15.583 4 | 9 | 18.314 7 | 9 | 38.009 1 | 15.567 9 | 18.023 6 |
花岗闪长岩 | 83.129 278 | 45.364 722 | 287 | 38.446 9 | 19 | 15.613 9 | 7 | 18.642 8 | 9 | 37.993 1 | 15.581 5 | 18.020 8 |
安山玢岩 | 85.112 500 | 45.994 972 | 295 | 39.338 5 | 10 | 15.627 6 | 4 | 19.831 8 | 5 | 37.644 1 | 15.531 3 | 17.987 6 |
中酸性岩墙 | 83.908 283 | 45.503 792 | 300 | 38.472 4 | 23 | 15.592 9 | 8 | 18.442 0 | 9 | 37.877 1 | 15.569 0 | 17.983 6 |
安山玢岩 | 85.169 083 | 45.961 278 | 313 | 38.455 0 | 14 | 15.598 1 | 5 | 18.541 4 | 6 | 38.058 1 | 15.568 6 | 17.981 6 |
安山玢岩 | 83.991 747 | 45.605 128 | 300 | 38.108 5 | 27 | 15.543 6 | 11 | 18.220 2 | 12 | 37.864 6 | 15.530 3 | 17.967 0 |
花岗斑岩 | 83.841 861 | 45.610 778 | 300 | 38.642 9 | 25 | 15.582 7 | 9 | 18.641 5 | 10 | 37.804 5 | 15.547 0 | 17.960 0 |
安山玢岩 | 84.019 361 | 45.579 306 | 300 | 38.033 2 | 15 | 15.543 7 | 7 | 18.122 5 | 8 | 37.876 5 | 15.534 1 | 17.939 8 |
花岗闪长斑岩 | 84.125 639 | 45.563 028 | 300 | 38.325 0 | 13 | 15.563 5 | 5 | 18.365 6 | 6 | 37.842 6 | 15.541 0 | 17.936 0 |
英安岩 | 83.645 589 | 45.782 686 | 323 | 38.610 7 | 27 | 15.579 5 | 10 | 18.706 4 | 12 | 37.742 3 | 15.538 7 | 17.934 3 |
安山玢岩 | 85.151 972 | 45.971 667 | 300 | 38.429 8 | 16 | 15.593 9 | 7 | 18.482 3 | 7 | 37.901 8 | 15.565 3 | 17.933 7 |
英安岩 | 83.645 589 | 45.782 686 | 329 | 38.297 4 | 24 | 15.556 1 | 9 | 18.298 8 | 10 | 37.866 1 | 15.536 6 | 17.929 9 |
英安岩 | 84.569 186 | 45.698 525 | 300 | 38.271 2 | 19 | 15.531 8 | 9 | 18.422 8 | 9 | 37.836 9 | 15.505 7 | 17.925 8 |
闪长玢岩 | 85.190 778 | 45.949 750 | 300 | 38.108 3 | 14 | 15.562 4 | 5 | 18.163 2 | 6 | 37.909 5 | 15.549 7 | 17.922 8 |
安山玢岩 | 84.025 075 | 45.573 889 | 300 | 38.103 7 | 22 | 15.545 1 | 9 | 18.186 5 | 10 | 37.870 3 | 15.531 1 | 17.918 8 |
英安岩 | 84.594 325 | 45.708 525 | 300 | 38.274 8 | 25 | 15.552 2 | 9 | 18.438 8 | 11 | 37.865 2 | 15.524 8 | 17.914 4 |
安山玢岩 | 84.017 872 | 45.602 144 | 300 | 38.398 6 | 24 | 15.566 9 | 10 | 18.520 2 | 11 | 37.856 3 | 15.535 0 | 17.910 9 |
安山玢岩 | 84.194 450 | 45.806 958 | 300 | 38.257 4 | 47 | 15.580 3 | 19 | 18.285 4 | 22 | 37.939 6 | 15.560 3 | 17.903 4 |
安山玢岩 | 84.019 861 | 45.585 639 | 322 | 38.049 3 | 19 | 15.538 0 | 7 | 18.165 3 | 8 | 37.827 6 | 15.524 1 | 17.902 2 |
安山玢岩 | 84.024 083 | 45.604 139 | 301 | 38.304 2 | 20 | 15.550 5 | 9 | 18.418 2 | 10 | 37.840 5 | 15.523 0 | 17.892 0 |
安山玢岩 | 84.028 556 | 45.603 944 | 301 | 38.307 0 | 20 | 15.558 4 | 9 | 18.374 3 | 9 | 37.887 3 | 15.532 7 | 17.883 6 |
流纹斑岩 | 83.897 000 | 46.005 861 | 300 | 38.363 8 | 18 | 15.597 3 | 7 | 18.459 1 | 8 | 37.851 8 | 15.567 0 | 17.881 1 |
安山玢岩 | 84.565 397 | 45.703 450 | 308 | 39.038 9 | 40 | 15.615 1 | 16 | 19.176 6 | 18 | 37.874 7 | 15.546 6 | 17.867 4 |
安山玢岩 | 84.013 694 | 45.572 617 | 290 | 38.436 0 | 30 | 15.573 0 | 12 | 18.544 8 | 12 | 37.822 1 | 15.536 4 | 17.843 4 |
闪长玢岩 | 83.181 056 | 45.446 389 | 300 | 38.335 7 | 43 | 15.601 0 | 14 | 18.326 9 | 12 | 37.919 9 | 15.574 3 | 17.817 2 |
安山玢岩 | 84.341 744 | 45.821 042 | 314 | 38.122 5 | 36 | 15.534 6 | 14 | 18.265 1 | 17 | 37.738 4 | 15.505 8 | 17.719 3 |
安山玢岩 | 85.111 806 | 45.995 889 | 319 | 39.947 1 | 16 | 15.687 1 | 6 | 20.149 9 | 8 | 37.446 0 | 15.557 2 | 17.688 3 |
花岗岩 | 84.557 000 | 45.701 528 | 300 | 38.837 5 | 23 | 15.588 9 | 9 | 19.649 4 | 11 | 37.381 7 | 15.556 6 | 19.035 2 |
细粒花岗岩 | 84.115 889 | 45.960 806 | 300 | 39.082 1 | 24 | 15.579 6 | 9 | 19.167 7 | 11 | 37.820 8 | 15.547 0 | 18.545 2 |
碱长花岗岩 | 84.419 167 | 46.096 750 | 304 | 38.585 1 | 19 | 15.564 6 | 7 | 18.907 6 | 8 | 37.866 5 | 15.545 3 | 18.539 8 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 300 | 38.703 6 | 20 | 15.575 5 | 7 | 18.759 2 | 10 | 37.718 7 | 15.556 9 | 18.404 2 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 305 | 38.395 5 | 21 | 15.554 8 | 8 | 18.870 6 | 8 | 37.639 8 | 15.530 0 | 18.397 0 |
碱长花岗岩 | 84.100 000 | 45.964 028 | 299 | 38.398 3 | 16 | 15.535 4 | 6 | 18.559 0 | 7 | 37.729 3 | 15.523 7 | 18.335 7 |
岩性 | 经度/(°) | 纬度/(°) | t/Ma | 208Pb/204Pb | 2s/ 10-4 | 207Pb/204Pb | 2s/ 10-4 | 206Pb/204Pb | 2s/ 10-4 | (208Pb/ 204Pb)i | (207Pb/ 204Pb)i | (206Pb/ 204Pb)i |
碱长花岗岩 | 84.448 556 | 46.145 944 | 300 | 38.223 0 | 26 | 15.544 9 | 11 | 18.794 9 | 14 | 37.748 9 | 15.520 1 | 18.321 6 |
花岗岩 | 84.419 167 | 46.096 750 | 300 | 38.6212 | 15 | 15.552 6 | 6 | 18.688 0 | 7 | 37.783 5 | 15.533 0 | 18.313 9 |
花岗闪长岩 | 82.482 083 | 45.741 972 | 300 | 38.375 6 | 19 | 15.548 9 | 6 | 18.805 1 | 7 | 37.647 5 | 15.523 0 | 18.310 7 |
碱长花岗岩 | 84.156 500 | 46.314 806 | 300 | 38.521 4 | 18 | 15.536 7 | 8 | 18.892 8 | 8 | 37.678 8 | 15.50 8 | 18.301 7 |
花岗闪长岩 | 84.991 167 | 46.613 833 | 300 | 38.427 4 | 16 | 15.601 2 | 6 | 18.484 3 | 7 | 38.034 7 | 15.591 3 | 18.296 1 |
花岗闪长岩 | 84.412 167 | 46.029 111 | 317 | 38.348 4 | 15 | 15.556 3 | 5 | 18.595 4 | 6 | 37.630 0 | 15.539 6 | 18.278 2 |
碱长花岗岩 | 84.646 472 | 45.900 306 | 310 | 38.436 6 | 22 | 15.565 0 | 8 | 18.668 2 | 11 | 37.399 9 | 15.542 4 | 18.238 2 |
花岗闪长岩 | 82.474 583 | 45.738 139 | 300 | 38.218 4 | 19 | 15.534 8 | 7 | 18.572 3 | 8 | 37.558 6 | 15.517 2 | 18.236 5 |
碱长花岗岩 | 83.565 389 | 45.702 417 | 307 | 38.632 9 | 22 | 5.542 2 | 6 | 18.581 3 | 10 | 37.806 9 | 5.523 7 | 18.228 2 |
花岗岩 | 84.281 000 | 45.830 639 | 309 | 38.411 6 | 19 | 15.5460 | 7 | 18.486 7 | 7 | 37.703 7 | 15.532 3 | 18.226 6 |
花岗闪长岩 | 83.830 139 | 45.741 917 | 300 | 38.399 9 | 19 | 15.552 4 | 7 | 18.458 9 | 7 | 37.829 0 | 15.539 1 | 18.206 3 |
花岗闪长斑岩 | 82.462 361 | 45.731 528 | 300 | 38.043 5 | 13 | 15.521 2 | 4 | 18.424 9 | 5 | 37.717 3 | 15.509 7 | 18.204 9 |
碱长花岗岩 | 84.126 250 | 45.948 500 | 300 | 38.389 2 | 15 | 15.539 6 | 7 | 18.507 1 | 7 | 37.708 8 | 15.523 6 | 18.202 1 |
碱长花岗岩 | 85.061 417 | 45.994 639 | 316 | 38.538 4 | 20 | 15.540 0 | 7 | 18.648 5 | 10 | 37.794 2 | 15.516 0 | 18.193 5 |
闪长岩 | 84.406 500 | 46.042 139 | 316 | 38.328 7 | 7 | 15.544 8 | 4 | 18.436 5 | 4 | 37.832 0 | 15.531 4 | 18.181 7 |
碱长花岗岩 | 84.167 639 | 45.920 750 | 294 | 38.369 8 | 15 | 15.540 2 | 6 | 18.463 1 | 6 | 37.772 7 | 15.525 4 | 18.178 9 |
碱长花岗岩 | 85.782 000 | 46.642 722 | 300 | 38.565 6 | 17 | 15.587 7 | 8 | 18.700 8 | 9 | 37.767 9 | 15.560 1 | 18.172 6 |
碱长花岗岩 | 83.841 194 | 45.615 583 | 302 | 38.431 1 | 24 | 15.544 5 | 10 | 18.543 4 | 11 | 37.766 8 | 15.524 5 | 18.160 8 |
碱长正长岩 | 85.982 722 | 46.735 528 | 300 | 38.569 3 | 21 | 15.573 5 | 7 | 18.593 6 | 9 | 37.881 6 | 15.550 0 | 18.144 3 |
花岗闪长岩 | 82.474 722 | 45.736 583 | 300 | 38.200 2 | 23 | 15.538 2 | 8 | 18.539 4 | 9 | 37.745 6 | 15.517 4 | 18.141 4 |
花岗闪长岩 | 84.454 972 | 45.500 861 | 300 | 38.666 3 | 18 | 15.549 5 | 5 | 18.632 7 | 9 | 37.759 4 | 15.523 4 | 18.134 9 |
花岗岩 | 83.661 444 | 45.772 972 | 300 | 38.841 7 | 28 | 15.563 4 | 11 | 18.851 0 | 13 | 37.917 3 | 15.525 4 | 18.125 2 |
花岗岩 | 84.714 278 | 45.676 000 | 313 | 38.482 7 | 14 | 15.535 1 | 6 | 18.634 1 | 7 | 37.783 4 | 15.508 1 | 18.120 7 |
黑云母花岗岩 | 84.562 667 | 45.888 222 | 298 | 38.419 1 | 29 | 15.542 0 | 10 | 18.567 7 | 10 | 37.559 3 | 15.518 4 | 18.116 9 |
碱长花岗岩 | 83.551 028 | 45.766 639 | 300 | 38.383 4 | 30 | 15.536 8 | 12 | 18.431 9 | 17 | 37.706 1 | 15.519 9 | 18.109 4 |
花岗闪长岩 | 84.156 472 | 46.314 778 | 294 | 38.135 2 | 19 | 15.518 8 | 7 | 18.413 0 | 8 | 37.748 3 | 15.502 9 | 18.107 9 |
花岗闪长岩 | 83.855 278 | 45.427 056 | 305 | 38.404 2 | 33 | 15.547 7 | 12 | 18.564 6 | 15 | 37.765 2 | 15.523 4 | 18.101 0 |
碱长花岗斑岩 | 84.990 083 | 46.609 083 | 300 | 38.355 9 | 22 | 15.574 4 | 9 | 18.406 2 | 10 | 37.950 7 | 15.557 2 | 18.079 3 |
碱长花岗岩 | 83.854 778 | 45.522 556 | 300 | 38.214 0 | 22 | 15.531 9 | 8 | 18.299 3 | 10 | 37.734 0 | 15.519 5 | 18.063 4 |
黑云母花岗岩 | 84.655 500 | 46.401 528 | 303 | 37.944 1 | 13 | 15.526 0 | 5 | 18.616 4 | 6 | 37.381 9 | 15.496 4 | 18.051 5 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 39.606 1 | 54 | 15.743 8 | 19 | 22.296 3 | 27 | 37.713 7 | 15.519 8 | 18.046 5 |
闪长玢岩 | 82.482 528 | 45.741 833 | 300 | 37.931 1 | 18 | 15.521 3 | 7 | 18.121 3 | 8 | 37.855 8 | 15.516 8 | 18.035 5 |
碱长花岗岩 | 83.477 000 | 45.700 306 | 304 | 38.349 4 | 23 | 15.536 6 | 9 | 18.467 9 | 9 | 37.725 4 | 15.513 8 | 18.033 6 |
花岗岩 | 84.935 222 | 46.566 056 | 300 | 38.305 4 | 27 | 15.557 4 | 10 | 18.433 7 | 11 | 37.852 3 | 15.536 3 | 18.033 1 |
碱长花岗岩 | 84.363 278 | 45.763 194 | 300 | 38.250 2 | 28 | 15.526 0 | 11 | 18.277 6 | 13 | 37.560 6 | 15.512 9 | 18.026 6 |
角闪花岗岩 | 83.239 611 | 45.991 556 | 316 | 38.224 6 | 17 | 15.535 9 | 6 | 18.348 1 | 7 | 37.815 6 | 15.518 4 | 18.016 6 |
黑云母花岗岩 | 84.849 111 | 45.722 250 | 303 | 38.167 6 | 27 | 15.522 2 | 10 | 18.308 4 | 10 | 37.832 9 | 15.506 7 | 18.012 5 |
花岗闪长岩 | 84.468 611 | 45.497 583 | 300 | 39.540 1 | 20 | 15.605 1 | 7 | 19.708 8 | 7 | 37.358 4 | 15.515 9 | 18.005 1 |
花岗闪长岩 | 84.662 861 | 45.671 278 | 300 | 38.261 3 | 22 | 15.525 8 | 8 | 18.379 9 | 8 | 37.871 4 | 15.506 0 | 18.003 6 |
花岗闪长岩 | 83.702 389 | 46.263 278 | 307 | 38.223 7 | 17 | 15.542 9 | 6 | 18.465 2 | 5 | 37.667 8 | 15.518 6 | 18.000 0 |
碱长花岗岩 | 84.164 333 | 46.303 806 | 300 | 38.032 4 | 17 | 15.514 7 | 6 | 18.376 9 | 7 | 37.733 3 | 15.494 7 | 17.995 3 |
花岗闪长岩 | 84.747 000 | 45.659 833 | 300 | 37.974 1 | 21 | 15.513 1 | 7 | 18.125 4 | 8 | 37.760 1 | 15.505 4 | 17.979 0 |
中酸性岩墙 | 85.329 000 | 46.703 472 | 300 | 38.170 3 | 21 | 15.575 4 | 7 | 18.192 1 | 8 | 37.950 2 | 15.564 1 | 17.976 5 |
碱长花岗岩 | 84.652 833 | 46.400 778 | 298 | 38.334 1 | 13 | 15.517 3 | 5 | 18.438 3 | 5 | 37.684 3 | 15.491 7 | 17.949 0 |
闪长岩 | 84.100 000 | 45.964 028 | 317 | 38.208 0 | 18 | 15.540 7 | 7 | 18.436 3 | 8 | 37.807 1 | 15.513 5 | 17.920 4 |
花岗闪长玢岩 | 84.406 500 | 46.042 139 | 317 | 38.240 5 | 17 | 15.543 7 | 6 | 18.477 5 | 7 | 37.791 6 | 15.514 2 | 17.918 2 |
黑云母花岗岩 | 84.538 722 | 45.688 444 | 312 | 38.640 9 | 19 | 15.519 0 | 7 | 18.396 8 | 7 | 37.446 6 | 15.492 5 | 17.892 9 |
闪长岩 | 84.539 667 | 45.473 194 | 300 | 39.364 0 | 31 | 15.593 1 | 9 | 19.516 2 | 15 | 37.788 4 | 15.502 5 | 17.796 8 |
图7 西准噶尔地区重磁异常图(据文献[105]修改) (a)—布格重力垂向一次导数阴影图;(b)—航磁ΔT化极阴影图。
Fig.7 Gravity and magnetic anomaly map of West Junggar (modified after [105]). (a) Vertical first derivative shadow diagram of Bougher gravity. (b) Aeromagnetic ΔT polar shadow diagram.
图8 西准噶尔地区典型剖面构造地质-地球物理-同位素对比图 (a)—大地电磁测深剖面(据文献[106]修改);(b)—(206Pb/204Pb)i剖面;(c)—Nd模式年龄剖面。剖面位置为额敏县(A)克拉玛依市(B)。
Fig.8 Tectonogeologic, geophysic and isotopic comparisons of typical sections in West Junggar. (a) Magnetotelluric sounding profile (modified after [106]). (b) (206Pb/204Pb)i profile. (c) Nd model age profile. Section location see AB line in Fig.4 (A—Emin County; B—Karamay City).
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