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Home All issues Volume 191 (2020) BSGF - Earth Sci. Bull., 191 (2020) 34 Full HTML
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Table 2

Results of U-Pb dating on the biotite leucogranite (GB16-5).

Spot 207Pb
(cps)		 U
(ppm)		 Pb
(ppm)		 Th
U		 206Pbc
(%)		 206Pb
238U		 ±2σ
(%)		 207Pb
235U		 ±2σ
(%)		 207Pb
206Pb		 ±2σ
(%)		 rho 206Pb
238U		 ±2σ
(Ma)		 207Pb
235U		 ±2σ
(Ma)		 207Pb
206Pb		 ±2σ
(Ma)		 conc.
(%)
Sample GB16-5
   a522c 58074 88 10 0.53 2.38 0.10420 1.2 1.033 5.0 0.0719 4.867 0.23 639 7 720 26 982 99 65
   a523r 183204 293 32 0.42 1.04 0.10360 0.9 0.8694 2.2 0.0609 2.007 0.42 635 6 635 10 634 43 100
   a526c 289934 380 50 0.23 3.88 0.12040 2.8 1.487 4.5 0.0896 3.512 0.62 733 19 925 28 1416 67 52
   a527r 396744 528 75 0.21 2.20 0.12600 2.1 2.049 3.2 0.1179 2.418 0.66 765 16 1132 22 1925 43 40
   a528 211279 327 40 0.88 2.92 0.10150 1.1 0.9202 4.2 0.0658 4.051 0.26 623 6 662 21 798 85 78
   a529 911562 1260 267 4.01 23.47 0.09493 3.9 1.045 12.3 0.0799 11.65 0.32 585 22 726 66 1193 230 49
   a530 81775 126 17 0.52 3.10 0.10530 2.8 1.275 15.8 0.0878 15.52 0.17 646 17 835 94 1378 298 47
   a532r 395552 533 64 0.48 1.00 0.10700 2.2 0.9562 7.2 0.0648 6.897 0.30 655 13 681 37 769 145 85
   a533c 391718 678 96 1.20 0.97 0.10480 2.1 0.9471 8.3 0.0655 8.049 0.25 643 13 677 42 791 169 81
   a534r 1645781 2467 505 3.31 10.50 0.11230 2.2 1.01 7.8 0.0652 7.479 0.28 686 14 709 41 782 157 88
   a535 561403 910 107 0.76 0.89 0.10110 1.7 0.8707 5.5 0.0625 5.247 0.30 621 10 636 26 690 112 90
   a537 234317 455 53 0.70 1.27 0.09931 2.5 0.926 3.3 0.0676 2.26 0.74 610 14 666 16 857 47 71
   a538c 346020 211 66 0.36 1.79 0.25090 2.5 4.978 2.8 0.1439 1.427 0.86 1443 32 1816 24 2275 25 63
   a539r 426518 824 90 0.44 4.57 0.09220 1.7 1.131 5.0 0.089 4.735 0.35 569 9 768 28 1403 91 41
   a541r 182399 290 35 0.72 6.87 0.09238 1.4 1.194 8.8 0.0938 8.709 0.16 570 8 798 50 1503 165 38
   a542 815111 285 158 0.69 0.44 0.45120 1.2 10.71 1.4 0.1721 0.5841 0.90 2401 25 2498 13 2578 10 93
   a543c 120113 195 22 0.63 b.d. 0.10350 4.4 0.8568 4.9 0.0601 2.212 0.89 635 27 628 23 606 48 105
   a544r 292021 363 47 0.84 0.92 0.10300 1.5 1.125 3.4 0.0792 3.058 0.43 632 9 765 18 1177 60 54
   a545c 268425 304 70 3.70 30.06 0.10590 4.5 1.304 21.2 0.0893 20.73 0.21 649 28 848 130 1411 397 46
   a546r 3296022 6053 1106 3.02 1.39 0.10470 2.0 0.8809 3.1 0.0611 2.343 0.65 642 12 641 15 641 50 100
   a547c 478131 957 105 0.43 2.65 0.09701 2.9 0.8162 7.8 0.061 7.247 0.37 597 16 606 36 640 156 93
   a548r 377110 711 94 0.41 7.33 0.10790 2.1 1.091 11.3 0.0733 11.11 0.19 660 13 749 62 1023 225 65
   a554c 480813 349 88 0.76 1.14 0.18950 1.5 3.526 3.6 0.135 3.303 0.41 1118 15 1533 29 2164 58 52
   a555r 1541940 755 292 0.30 0.11 0.35430 4.7 6.335 4.9 0.1297 1.479 0.95 1955 80 2023 44 2094 26 93
   a557 167254 257 33 0.32 6.25 0.10410 3.7 1.037 15.0 0.0722 14.53 0.24 638 22 722 81 992 295 64
   a558 582827 923 116 0.72 2.78 0.10570 1.8 0.8946 5.7 0.0614 5.365 0.32 647 11 649 28 654 115 99
   a559 169014 274 31 0.21 7.34 0.09566 3.6 1.058 6.7 0.0802 5.732 0.53 589 20 733 36 1203 113 49
   a560 380908 893 105 0.31 5.95 0.10590 1.7 0.9593 8.2 0.0657 7.984 0.21 649 10 683 41 796 167 82
   a561c 443502 743 88 0.36 0.59 0.11120 1.4 1.025 5.0 0.0668 4.848 0.27 680 9 716 26 832 101 82
   a563 158652 248 37 0.67 1.84 0.12150 2.3 1.487 9.3 0.0887 9.035 0.25 739 16 925 58 1399 173 53
   a564 408479 561 79 0.35 7.55 0.11330 2.6 1.215 10.5 0.0777 10.17 0.25 692 17 807 60 1140 202 61
   a565 372965 607 68 0.59 1.21 0.10010 1.5 0.9286 2.6 0.0673 2.161 0.56 615 9 667 13 846 45 73
   a566 370601 595 84 0.66 10.25 0.10490 2.1 0.8849 13.4 0.0612 13.27 0.16 643 13 644 66 646 285 99
   a567 505930 799 111 0.71 7.94 0.10580 2.3 1.023 8.3 0.0701 7.947 0.28 648 14 715 43 932 163 70
   a568 53320 85 10 0.97 b.d. 0.10410 5.1 0.8761 6.1 0.061 3.311 0.84 639 31 639 29 640 71 100
   a569 256412 374 45 0.85 1.75 0.10370 1.0 0.8743 3.0 0.0612 2.777 0.35 636 6 638 14 645 60 99
   a570 326112 389 48 0.95 b.d. 0.10300 1.2 0.9233 8.3 0.065 8.232 0.15 632 7 664 41 775 173 82
   a571c 289084 407 49 0.76 b.d. 0.10430 1.6 0.932 1.9 0.0648 0.9353 0.87 640 10 669 9 768 20 83
   a572r 399694 623 73 0.74 0.11 0.10300 1.3 0.8631 1.5 0.0608 0.8289 0.84 632 8 632 7 630 18 100
   a573 183396 255 31 0.75 0.19 0.10320 2.8 0.8721 11.5 0.0613 11.16 0.24 633 17 637 56 650 240 97
   a574 411033 203 83 0.64 0.76 0.35080 1.7 6.291 2.0 0.1301 1.05 0.85 1939 28 2017 18 2099 18 92
   a575 660726 1026 121 0.72 b.d. 0.10310 1.3 0.8659 4.3 0.0609 4.093 0.29 633 8 633 20 635 88 100
   a576 356870 128 69 1.28 0.40 0.40210 1.8 7.827 3.7 0.1412 3.277 0.47 2179 32 2211 34 2242 57 97
   a577 527605 296 127 0.63 2.04 0.35390 2.5 8.114 3.5 0.1663 2.451 0.72 1953 42 2244 32 2520 41 78
   a578 371057 338 65 0.39 2.51 0.15320 2.5 2.386 3.9 0.1129 3.062 0.63 919 21 1238 29 1847 55 50
   a579c 400531 172 77 0.57 0.00 0.37850 1.1 7.666 1.5 0.1469 0.9221 0.77 2069 20 2193 13 2310 16 90
   a580r 1036473 593 200 0.14 0.32 0.31500 1.5 5.753 2.0 0.1324 1.312 0.76 1765 24 1939 18 2131 23 83
   a581 223420 369 46 0.90 2.18 0.10380 1.6 0.9251 3.8 0.0647 3.43 0.42 636 10 665 19 763 72 83
   a582 429842 195 75 0.34 0.85 0.34000 2.5 7.122 3.8 0.1519 2.897 0.66 1887 41 2127 35 2368 49 80
   a583 31008 52 6 0.77 1.36 0.10310 1.2 0.8597 3.2 0.0605 3.002 0.36 633 7 630 15 621 65 102
   a584 404645 720 75 0.54 1.35 0.09434 1.3 0.8089 2.4 0.0622 2.073 0.53 581 7 602 11 681 44 85
   a585 257029 468 57 0.81 b.d. 0.10420 1.9 0.8888 10.0 0.0619 9.792 0.19 639 12 646 49 669 210 96
   a586 431410 224 80 0.68 0.08 0.30270 1.2 5.273 2.6 0.1264 2.273 0.46 1705 18 1865 22 2048 40 83
   a587 36989 62 8 1.04 1.84 0.10270 4.3 0.8619 5.6 0.0609 3.587 0.77 630 26 631 27 634 77 99
   a588 88035 146 20 1.08 5.88 0.10280 1.8 1.267 7.4 0.0894 7.192 0.24 631 11 831 43 1413 138 45
   a589 898054 304 189 0.75 b.d. 0.48130 1.2 14.44 1.7 0.2176 1.117 0.74 2533 26 2779 16 2963 18 85
   a590 166629 82 27 0.32 2.44 0.27600 3.7 4.564 9.2 0.1199 8.38 0.41 1571 52 1743 79 1955 150 80

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