1 LA -ICP -MS U -Pb LA -ICP -MS U -Pb /20 C 2 - P 1 S Fig Geological sketch map of studied area

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35 1 2016 3 GLOBAL GEOLOGY Vol. 35 No. 1 Mar. 2016 1004-5589 2016 01-0066 - 11 LA - ICP -MS U -Pb 1 1 2 1 3 1. 130061 2. 130026 3. 276006 LA -ICP -MS U -Pb 206 Pb / 238 U 281. 8 Ma 317. 2 Ma 424. 7 Ma 529. 3 Ma 206 Pb / 238 U 310. 4 Ma 384. 4 Ma 484. 7 Ma 206 Pb / 238 U 280 ± 4 Ma 285 ± 8 Ma LA -ICP -MS U -Pb P534. 46 P597 A doi 10. 3969 /j. issn. 1004-5589. 2016. 01. 007 LA -ICP -MS U -Pb dating of detrital zircon on Huangsong Group in Heilongjiang Province YU Hong-chao 1 LIANG Yi-hong 1 LI Xiang 2 ZHOU Jing 1 XU Feng-yuan 3 1. College of Earth Science Jilin University Changchun 130061 China 2. Research Center of Paleontology and Stratigraphy Jilin University Changchun 130026 China 3. The Seventh Institute of Geology and Mineral Exploration of Shandong Province Linyi 276006 Shandong China Abstract This study presents LA -ICP -MS zircon U -Pb ages for garnet biotite schist from the Yangmu Formation and biotite quartz schist from the Yanwangdian Formation of Huangsong Group located in Taipingling uplift belt in the south of Dunhua -Mishan fault eastern Heilongjiang Province. Dating results show that the 206 Pb / 238 U weighted mean age of zircons for garnet biotite schist from the Yangmu Formation were 281. 8 Ma 317. 2 Ma 424. 7 Ma and 529. 3 Ma respectively. The 206 Pb / 238 U weighted mean age of zircons for biotite quartz schist from the Yanwangdian Formation were 310. 4 Ma 384. 4 Ma and 484. 7 Ma. The youngest zircon 206 Pb / 238 U age gained from the two formations are 280 ± 4 Ma and 285 ± 8 Ma respectively. Furthermore the previous research showed that the metamorphic age of Huangsong Group was the Late Permian - Early Triassic. The above results show that the rocks within Huangsong Group formed during the Permian. Additionally the main sedimentary source of the Huangsong Group is dominated by the Hercynian and Caledonian magmatite. Key words Huangsong Group detrital zircons LA -ICP -MS zircon U -Pb dating 2015-05-27 2015-11-16 1212011120329 12120113098100. 1956-. E-mail Liangyih@ jlu. edu. cn

1 LA -ICP -MS U -Pb 67 0 1978 LA -ICP -MS U -Pb 1-3 1993 2 1 1-3 1 /20 C 2 - P 1 S 1 4-6 2 3 1 Fig. 1 1 1 Geological sketch map of studied area

68 35 CL LA -ICP -MS U -Pb ICP -MS ICP - / 3 MS Agilent Agilent 7 500 a 32 μm 6 Hz He Ar He 99. 999% 204 Pb 202 Hg < 100 cps U 6-8 -Th -Pb ICPMSDataCal 10 11 U -Pb 2 2. 1 9 Isoplot /Ex_ ver3 12 U -Th -Pb 1 σ 2 σ 8 ~ 10 kg 2. 2 Py03N1 2a PVC 130 40'4. 8 N 44 08' PVC 4. 9 E Pyn03N1 2b 3% HNO 3 130 59'14. 4 N 44 34'25. 6 E Fig. 2 2 Photomicrographs of garnet biotite schist from Yangmu Formation and biotite quartz schist from Yanwangdian Formation

1 LA -ICP -MS U -Pb 69 3 LA -ICP -MS U -Pb 1 206 Pb / 238 U 3 > 90% Fig. 3 3 U -Pb U -Pb concordia diagrams 3. 1 Py03N1 Py03N1 43 953 ± Th /U 0. 17 ~ 0. 72 16 Ma 280 ± 4 0. 44 206 Pb / 238 U U -Pb 3 4 317. 2 ± 4. 3 Ma MSWD = 0. 070 529. 3 Ma 281. 8 Ma 4 4 88. 4% 4a 9 100 μm 50 μm 0. 39 206 Pb / 238 U Th /U 0. 08 ~ 0. 56 529. 3 ± 4. 1 Ma MSWD = 0. 088 4b 12 U -Pb 1 1 2 311 ± 51 Ma 285 ± 8 U -Pb 3 Th / U 0. 01 ~ 0. 48 0. 30 484. 7 Ma 384. 4 Ma Th /U < 0. 1 310. 4 Ma 206 Pb / 238 U 424. 7 ± 3. 8 Ma MSWD = 0. 039 4c 5 4d 12 424. 7 Ma 317. 2 Ma 0. 34 Th /U < 0. 1 0. 037 206 Pb / 238 U 3. 2 Pyn03N1 Th /U 0. 10 ~ 0. 91 281. 8 ± 2. 4 Ma MSWD = 70. 2% Pyn03N1 47 5 a 13

70 35 Th /U Table 1 207 Pb / 206 Pb 1σ 1 LA -ICP -MS U -Pb LA -ICP -MS zircon U -Pb dating results for Huangsong Group 207 Pb / 235 U 1σ 206 Pb / 238 U 1σ /Ma 207 Pb / 206 Pb 1σ 207 Pb / 235 U 1σ 206 Pb / 238 U 1σ Py03N1-01 0. 72 0. 055 70 0. 001 26 0. 387 94 0. 008 64 0. 050 39 0. 000 50 441 32 333 6 317 3 Py03N1-02 0. 39 0. 062 18 0. 003 11 0. 578 94 0. 026 93 0. 068 30 0. 002 70 680 45 464 17 426 16 Py03N1-03 0. 49 0. 061 43 0. 001 96 0. 727 90 0. 023 56 0. 086 13 0. 001 33 654 43 555 14 533 8 Py03N1-04 0. 24 0. 052 92 0. 001 34 0. 326 30 0. 008 19 0. 044 78 0. 000 58 326 34 287 6 282 4 Py03N1-05 0. 45 0. 057 18 0. 001 86 0. 354 01 0. 011 61 0. 044 73 0. 000 46 498 54 308 9 282 3 Py03N1-06 0. 21 0. 070 51 0. 001 55 1. 540 16 0. 029 77 0. 159 36 0. 002 87 943 18 947 12 953 16 Py03N1-07 0. 46 0. 055 97 0. 002 18 0. 523 77 0. 019 56 0. 067 87 0. 000 77 451 89 428 13 423 5 Py03N1-08 0. 28 0. 056 07 0. 001 50 0. 532 01 0. 014 56 0. 068 28 0. 000 70 455 42 433 10 426 4 Py03N1-09 0. 52 0. 050 51 0. 003 39 0. 310 88 0. 019 66 0. 044 68 0. 000 72 219 115 275 15 282 4 Py03N1-10 0. 44 0. 067 57 0. 001 57 1. 142 05 0. 026 66 0. 121 84 0. 001 60 855 27 773 13 741 9 Py03N1-11 0. 20 0. 059 26 0. 006 04 0. 366 30 0. 031 91 0. 045 21 0. 001 46 576 133 317 24 285 9 Py03N1-12 0. 24 0. 052 00 0. 003 85 0. 359 14 0. 025 48 0. 050 09 0. 001 05 285 171 312 19 315 6 Py03N1-13 0. 41 0. 051 83 0. 001 53 0. 319 04 0. 009 41 0. 044 77 0. 000 56 278 44 281 7 282 3 Py03N1-14 0. 48 0. 056 80 0. 002 46 0. 532 93 0. 023 88 0. 068 19 0. 001 41 484 63 434 16 425 9 Py03N1-15 0. 17 0. 048 52 0. 002 06 0. 335 93 0. 014 31 0. 050 50 0. 001 32 125 54 294 11 318 8 Py03N1-16 0. 38 0. 051 31 0. 003 25 0. 604 32 0. 038 30 0. 085 00 0. 002 02 255 102 480 24 526 12 Py03N1-17 0. 08 0. 059 27 0. 001 58 0. 697 95 0. 017 74 0. 085 41 0. 000 67 577 59 538 11 528 4 Py03N1-18 0. 21 0. 059 70 0. 000 92 0. 566 88 0. 017 50 0. 068 21 0. 000 61 593 51 456 11 425 4 Py03N1-19 0. 39 0. 067 31 0. 003 31 1. 262 82 0. 058 16 0. 136 07 0. 002 36 847 105 829 26 822 13 Py03N1-20 0. 01 0. 074 58 0. 006 28 0. 578 85 0. 042 20 0. 068 11 0. 002 86 1 057 82 464 27 425 17 Py03N1-21 0. 17 0. 059 02 0. 003 94 0. 694 06 0. 043 86 0. 085 30 0. 001 85 568 150 535 26 528 11 Py03N1-22 0. 15 0. 058 89 0. 005 80 0. 556 63 0. 056 82 0. 068 66 0. 002 29 563 165 449 37 428 14 Py03N1-23 0. 16 0. 053 76 0. 003 34 0. 327 41 0. 018 12 0. 044 61 0. 001 01 361 84 288 14 281 6 Py03N1-24 0. 56 0. 058 93 0. 002 42 0. 697 77 0. 027 90 0. 085 80 0. 001 47 564 57 537 17 531 9 Py03N1-25 0. 34 0. 052 92 0. 003 12 0. 323 34 0. 018 32 0. 044 31 0. 000 72 325 137 284 14 280 4 Py03N1-26 0. 28 0. 055 59 0. 001 33 0. 658 55 0. 016 09 0. 085 63 0. 000 99 436 34 514 10 530 6 Py03N1-27 0. 41 0. 056 36 0. 001 94 0. 390 23 0. 012 34 0. 050 67 0. 000 80 467 42 335 9 319 5 Py03N1-28 0. 54 0. 054 28 0. 002 23 0. 330 43 0. 012 62 0. 044 64 0. 000 64 383 60 290 10 282 4 Py03N1-29 0. 33 0. 056 57 0. 002 25 0. 534 56 0. 025 99 0. 068 36 0. 001 90 475 60 435 17 426 11 Py03N1-30 1. 00 0. 070 62 0. 004 23 1. 189 71 0. 071 38 0. 122 21 0. 003 42 946 77 796 33 743 20 Py03N1-31 0. 19 0. 059 39 0. 008 40 0. 358 79 0. 039 92 0. 044 37 0. 002 24 581 155 311 30 280 14 Py03N1-32 0. 37 0. 057 05 0. 002 87 0. 535 56 0. 025 28 0. 068 08 0. 001 18 494 114 435 17 425 7 Py03N1-33 0. 24 0. 058 57 0. 001 82 0. 688 05 0. 020 02 0. 085 21 0. 000 94 551 70 532 12 527 6 Py03N1-34 0. 40 0. 056 14 0. 002 48 0. 525 53 0. 021 53 0. 067 90 0. 001 12 458 100 429 14 423 7 Py03N1-35 0. 66 0. 054 59 0. 002 01 0. 337 01 0. 012 77 0. 044 72 0. 000 60 395 61 295 10 282 4 Py03N1-36 0. 10 0. 056 93 0. 003 00 0. 535 55 0. 028 97 0. 067 85 0. 001 13 489 90 435 19 423 7 Py03N1-37 0. 37 0. 060 26 0. 008 11 0. 567 66 0. 094 92 0. 067 79 0. 003 24 613 284 456 61 423 20 Py03N1-38 0. 45 0. 058 33 0. 001 12 0. 693 51 0. 014 32 0. 085 77 0. 000 81 542 29 535 9 530 5 Py03N1-39 0. 10 0. 052 06 0. 008 86 0. 320 70 0. 052 01 0. 044 54 0. 000 99 288 305 282 40 281 6 Py03N1-40 0. 67 0. 054 80 0. 002 97 0. 375 30 0. 020 19 0. 050 40 0. 001 27 404 76 324 15 317 8 Py03N1-41 0. 91 0. 056 45 0. 002 49 0. 342 91 0. 014 86 0. 044 72 0. 000 64 470 70 299 11 282 4 Py03N1-42 0. 31 0. 068 52 0. 002 80 1. 284 69 0. 045 33 0. 135 98 0. 002 80 884 87 839 20 822 16 Py03N1-43 0. 38 0. 058 49 0. 001 74 0. 695 73 0. 021 27 0. 085 81 0. 000 98 548 47 536 13 531 6 Pyn03N1-01 0. 49 0. 060 60 0. 004 39 0. 639 51 0. 045 59 0. 078 08 0. 002 51 625 99 502 28 485 15 Pyn03N1-02 0. 59 0. 060 82 0. 010 46 0. 511 57 0. 088 68 0. 060 98 0. 003 12 633 291 420 60 382 19

1 LA -ICP -MS U -Pb 71 1 Th /U 207 Pb / 206 Pb 1σ 207 Pb / 235 U 1σ 206 Pb / 238 U 1σ /Ma 207 Pb / 206 Pb 1σ 207 Pb / 235 U 1σ 206 Pb / 238 U 1σ Pyn03N1-03 0. 40 0. 058 02 0. 006 23 0. 389 12 0. 038 14 0. 049 29 0. 001 63 531 158 334 28 310 10 Pyn03N1-04 0. 78 0. 151 77 0. 004 61 9. 071 26 0. 281 39 0. 431 20 0. 011 34 2 366 24 2 345 28 2 311 51 Pyn03N1-05 0. 32 0. 090 23 0. 002 87 3. 152 23 0. 109 59 0. 251 01 0. 007 08 1 430 30 1 446 27 1 444 37 Pyn03N1-06 0. 45 0. 055 56 0. 003 55 0. 366 63 0. 022 87 0. 049 42 0. 001 50 435 86 317 17 311 9 Pyn03N1-07 0. 86 0. 111 79 0. 004 41 5. 243 05 0. 240 43 0. 336 42 0. 009 52 1 829 44 1 860 39 1 869 46 Pyn03N1-08 0. 39 0. 059 91 0. 005 06 0. 646 07 0. 058 19 0. 077 88 0. 002 49 600 140 506 36 483 15 Pyn03N1-09 0. 42 0. 122 37 0. 004 11 5. 709 19 0. 282 18 0. 337 22 0. 009 32 1 991 50 1 933 43 1 873 45 Pyn03N1-10 0. 4 0. 058 56 0. 002 26 0. 629 82 0. 032 88 0. 078 10 0. 002 10 551 68 496 20 485 13 Pyn03N1-11 0. 57 0. 055 98 0. 003 32 0. 606 30 0. 039 56 0. 078 12 0. 002 36 452 92 481 25 485 14 Pyn03N1-12 0. 53 0. 061 22 0. 005 60 0. 652 74 0. 054 87 0. 078 12 0. 002 57 647 124 510 34 485 15 Pyn03N1-13 0. 58 0. 050 99 0. 002 43 0. 345 11 0. 016 75 0. 049 36 0. 001 37 240 63 301 13 311 8 Pyn03N1-14 5. 53 0. 049 12 0. 005 96 0. 414 91 0. 047 91 0. 061 56 0. 003 29 153 162 352 34 385 20 Pyn03N1-15 0. 72 0. 063 03 0. 007 13 0. 675 19 0. 070 38 0. 078 14 0. 002 94 709 159 524 43 485 18 Pyn03N1-16 0. 94 0. 049 45 0. 007 07 0. 412 93 0. 057 39 0. 060 57 0. 002 03 169 287 351 41 379 12 Pyn03N1-17 0. 31 0. 058 20 0. 001 98 0. 632 71 0. 022 32 0. 078 47 0. 002 24 537 35 498 14 487 13 Pyn03N1-18 0. 58 0. 054 16 0. 003 46 0. 458 19 0. 028 56 0. 061 65 0. 001 92 378 85 383 20 386 12 Pyn03N1-19 0. 87 0. 054 83 0. 003 00 0. 472 87 0. 025 85 0. 061 57 0. 001 75 405 72 393 18 385 11 Pyn03N1-20 0. 68 0. 054 28 0. 002 55 0. 336 14 0. 015 00 0. 045 14 0. 001 30 383 52 294 11 285 8 Pyn03N1-21 0. 69 0. 055 92 0. 003 09 0. 379 33 0. 020 36 0. 049 37 0. 001 55 449 66 327 15 311 9 Pyn03N1-22 0. 41 0. 063 05 0. 002 68 0. 793 52 0. 034 65 0. 090 66 0. 002 49 710 49 593 20 559 15 Pyn03N1-23 0. 19 0. 052 54 0. 016 06 0. 353 58 0. 100 44 0. 049 65 0. 002 84 309 437 307 75 312 17 Pyn03N1-24 0. 28 0. 058 61 0. 002 59 0. 400 87 0. 018 47 0. 049 42 0. 001 42 553 53 342 13 311 9 Pyn03N1-25 0. 42 0. 056 06 0. 001 94 0. 605 08 0. 021 30 0. 078 03 0. 002 22 455 36 480 13 484 13 Pyn03N1-26 0. 16 0. 091 58 0. 002 76 3. 157 16 0. 097 24 0. 247 90 0. 006 60 1 459 26 1 447 24 1 428 34 Pyn03N1-27 0. 36 0. 062 26 0. 002 41 0. 674 77 0. 025 92 0. 078 18 0. 002 16 683 40 524 16 485 13 Pyn03N1-28 0. 34 0. 057 16 0. 002 72 0. 389 77 0. 018 95 0. 049 19 0. 001 97 498 49 334 14 310 12 Pyn03N1-29 0. 84 0. 057 89 0. 004 35 0. 363 37 0. 025 88 0. 045 33 0. 001 45 525 100 315 19 286 9 Pyn03N1-30 1. 71 0. 058 58 0. 004 61 0. 622 78 0. 042 33 0. 076 72 0. 003 87 552 70 492 26 477 23 Pyn03N1-31 0. 69 0. 062 00 0. 004 34 0. 772 41 0. 049 65 0. 090 35 0. 002 52 674 154 581 28 558 15 Pyn03N1-32 1. 02 0. 064 65 0. 003 52 0. 687 53 0. 036 22 0. 078 21 0. 002 34 763 62 531 22 485 14 Pyn03N1-33 0. 85 0. 059 41 0. 002 57 0. 638 09 0. 027 68 0. 078 28 0. 002 23 582 48 501 17 486 13 Pyn03N1-34 1. 73 0. 057 24 0. 002 17 0. 393 27 0. 015 56 0. 049 41 0. 001 36 501 43 337 11 311 8 Pyn03N1-35 1. 28 0. 111 92 0. 003 59 4. 822 66 0. 157 61 0. 311 04 0. 008 43 1 831 27 1 789 27 1 746 41 Pyn03N1-36 0. 97 0. 061 92 0. 003 48 0. 518 17 0. 028 07 0. 061 42 0. 001 89 671 65 424 19 384 11 Pyn03N1-37 0. 71 0. 054 71 0. 003 78 0. 369 64 0. 023 39 0. 049 00 0. 001 36 400 159 319 17 308 8 Pyn03N1-38 3. 03 0. 070 41 0. 004 36 1. 268 97 0. 077 06 0. 134 63 0. 004 43 940 72 832 34 814 25 Pyn03N1-39 1. 85 0. 057 40 0. 003 28 0. 480 56 0. 027 24 0. 061 64 0. 001 80 507 74 398 19 386 11 Pyn03N1-40 0. 76 0. 063 87 0. 008 65 0. 668 33 0. 078 84 0. 077 96 0. 002 81 737 191 520 48 484 17 Pyn03N1-41 1. 49 0. 059 38 0. 005 23 0. 482 80 0. 038 92 0. 061 55 0. 002 11 581 116 400 27 385 13 Pyn03N1-42 1. 48 0. 055 92 0. 002 87 0. 470 72 0. 024 62 0. 061 48 0. 001 83 449 65 392 17 385 11 Pyn03N1-43 1. 54 0. 071 79 0. 002 96 1. 603 89 0. 067 54 0. 162 61 0. 004 61 980 43 972 26 971 26 Pyn03N1-44 1. 14 0. 059 77 0. 005 14 0. 509 55 0. 047 28 0. 061 59 0. 002 18 595 140 418 32 385 13 Pyn03N1-45 0. 72 0. 052 10 0. 003 00 0. 655 25 0. 039 96 0. 090 98 0. 002 81 290 84 512 25 561 17 Pyn03N1-46 0. 51 0. 115 82 0. 003 87 5. 402 17 0. 179 49 0. 337 34 0. 009 24 1 893 27 1 885 28 1 874 45 Pyn03N1-47 1. 44 0. 057 51 0. 007 24 0. 494 20 0. 071 78 0. 061 59 0. 002 64 511 246 408 49 385 16 Py03N1 Pyn03N1.

72 35 Fig. 4 4 Py03N1 CL 206 Pb / 238 U CL images of zircons and weighted mean age of Yangmu Formation Py03N1 1 ~ 2 Th /U Th /U 0. 58 ~ 5. 53 1. 53 0. 31 ~ 0. 71 0. 66 206 Pb / 238 U 384. 4 206 Pb / 238 U ± 7. 5 Ma MSWD = 0. 027 484. 7 ± 7. 9 Ma MSWD = 0. 014 5c 9 Th /U 0. 19 ~ 1. 73 5b 11 0. 60

1 LA -ICP -MS U -Pb 73 Fig. 5 5 Py03N1 CL 206 Pb / 238 U CL images of zircons and weighted mean age of Yanwangdian Formation Py03N1 206 Pb / 238 U 16-21 310. 4 ± 4. 6 Ma MSWD = 0. 016 Py03N1 280 ~ 286 Ma 282 Ma 308 ~ 319 Ma Pyn03N1 315 Ma 379 ~ 386 Ma 384 Ma 423 ~ 428 Ma 425 Ma 477 ~ 487 Ma 485 Ma 526 ~ 533 Ma 4-480 Ma 550 Ma 25 308 ~ 319 Ma 206 Pb / 238 U 13-15 90 6 529 Ma 6 6 22-24 = 315 ± 4 Ma MSWD = 0. 28 308 ~ 317 Ma

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