, 3.1 PM303, 10(2)( 5, 5 ), 1 w (SiO 2 ) 68% ~89%, 2( 1, 1) (Al 2O 3,Fe 2O 3,MnO) (MgO,K 2O, Na 2O),w(TiO 2 ) w (SiO 2 ) ;,w (TiO 2 ) 0.31%

36 3 2017 5 GeologicalScienceandTechnologyInformation Vol.36 No.3 May 2017 doi:10.19509/j.cnki.dzkq.2017.0302,,,. [J].,2017,36(3): 7-17. 1, 1, 1, 2, 1 3 (1., 264004;2. ( ), 430074; 3., 710000) :, (Al 2O 3,Fe 2O 3,MnO) (MgO,K 2O,Na 2O),, Eu,, U-Pb 4 :550~400,1050~750,1800~1550,2550~2400 Ma, 4, : ; ; ; ;U-Pb :P588.21 + 2.3 :A :1000-7849(2017)03-0007-11,, - 420m; -, - 310 m, [1-2],,, [3-4],,, U-Pb, [5-9],, - 1,, (1) -, -, -, - 9. ;10. 1, - Fig.1 Geologicalmapofthestudyarea :2017-03-03 : : (DD20160079) : (1988 1. ;2. ;3. - ;4. - ; 5. - ;6. ;7. ;8. ; ),,, E-mail:544507188@qq.com

8 2017 2 3, 3.1 PM303, 10(2)( 5, 5 ), 1 w (SiO 2 ) 68% ~89%, 2( 1, 1) (Al 2O 3,Fe 2O 3,MnO) (MgO,K 2O, Na 2O),w(TiO 2 ) w (SiO 2 ) ;,w (TiO 2 ) 0.31% ~0.64%, w(al 2O 3 ) 2.62% ~9.82%,Al 2O 3 /(CaO, +NaO) 2.2~3.1, [6] U-Pb K 2O/N 2O 1, CIA 37~65, 58,CIW 80, 15%, 41~76, 68, [10-11] 6667 [5-6] F2-F1, (3),F1 -F2 (4), 3 ACM. ;PM. ; OIA. ;CIA. F2-F1 Fig.3 Plotofdiscriminantscoresalongfunction2versusfunction1 forvarioussandstones 2 PM303 Fig.2 Sedimentaryinterlayersandthesampleslocationsof PM303sectioninKeziertageFormation P1. ;P2. ; P3. ;P4. 4 F1 -F2 Fig.4 Provenancediscriminantfunctiondiagramofclasticrocks

3 : 9 1 Table1 ThestatisticresultsofmajorelementcompositionofKeziertageFormationsandstonesinKeping w B /% SiO2 Al2O3 TiO2 Fe2O3 FeO CaO MgO K2O Na2O MnO P2O5 10-1 62.01 9.82 0.54 1.12 1.28 9.26 2.33 2.13 1.52 0.120 0.162 9.62 99.92 22-1 87.07 4.84 0.31 0.87 0.38 1.08 0.94 1.16 1.11 0.026 0.109 2.02 99.90 26-1 83.14 7.07 0.58 1.72 0.45 0.76 1.22 1.55 1.50 0.022 0.176 1.72 99.91 34-1 85.84 5.41 0.39 1.10 0.37 1.26 0.94 1.34 1.17 0.028 0.140 1.94 99.92 46-1 79.86 7.89 0.59 1.75 0.66 1.02 1.79 1.80 1.69 0.035 0.201 2.62 99.90 56-1 83.24 3.72 0.16 0.82 0.36 2.77 2.08 1.11 0.64 0.074 0.068 4.63 99.66 66-1 82.48 6.61 0.51 1.31 0.70 1.01 1.38 1.93 1.24 0.038 0.164 2.52 99.89 70-1 85.42 6.13 0.40 1.20 0.49 0.51 0.90 1.82 1.35 0.022 0.136 1.49 99.87 78-1 85.44 2.62 0.15 0.89 0.33 3.06 1.53 0.73 0.60 0.104 0.146 4.33 99.95 84-1 85.11 6.14 0.33 1.28 0.46 0.61 0.94 1.80 1.36 0.024 0.117 1.76 99.92 81.96 6.02 0.40 1.21 0.55 2.13 1.41 1.54 1.22 0.050 0.140 58.83 17.11 1.06 1.95 5.52 5.83 3.65 1.60 4.10 0.150 0.260 70.69 14.04 0.64 1.43 3.05 2.68 1.97 1.89 3.12 0.100 0.160 73.86 12.89 0.46 1.30 1.58 2.48 1.23 2.90 2.77 0.100 0.090 81.95 8.41 0.49 1.32 1.76 1.89 1.39 1.71 1.07 0.050 0.120 :, [6] [8] 3.2 7), 2, 3,w (Zn)14.8 10-6 ~51.4 10-6 w(σree)81 10-6 ~210 10-6, ( 25.4 10-6 ), Th/Sc 156.9 10-6, 0.6~2.1 ( 1.6),Sc/Cr 0.16 112.2 10-6, 134.6 10-6 ~0.25 ( 0.19),,w (LREE)71.4 10-6 ~190.5 10-6,w(HREE)9.2 10-6 ~20.1 [8-9] w(la) 10-6,LREE/HREE 7.1~10.3, -w(th)-w(sc) (5-a),8,,2 (4) (La/Yb) N 8.7~12.4, La/Y-Sc/Cr (5-b) 2 δeu 0.67,δCe 0.87, [12-13],1, 7, [9] Th/U (6),, 3.9,, Eu [10] La/Sc 5.1~8.4 (,Ce,Gd, 6.7),Co/Th 0.37~1.27 ( 0. A. ;B. ;C. ;D. 5 Fig.5 TraceelementdiscriminatiomdiagramsofKeziertageFormationsandstonesfortectonicseting

10 2017 2 Table2 StatisticresultsoftraceelementcompositionofKeziertageFormationsandstonesinKeping w B /10-6 Li Be Sc V Cr Co Ni Cu Zn Ga Rb Sr Nb 10-1 27.0 1.13 7.44 77.0 38.8 9.76 24.6 22.2 51.4 12.4 58.9 105 10.6 22-1 10.6 0.37 3.06 31.0 13.9 2.57 6.14 8.75 14.8 5.24 39.3 81.8 5.50 26-1 17.6 0.91 4.87 46.2 29.1 4.79 12.3 14.4 26.9 8.69 47.7 65.7 10.4 34-1 14.5 0.59 4.03 41.6 21.2 3.51 8.57 10.8 24.8 6.31 47.3 60.0 6.33 46-1 18.7 1.21 6.38 48.4 35.0 5.56 13.6 13.8 31.1 9.91 58.3 79.6 11.7 56-1 14.5 0.47 4.01 40.2 16.0 3.47 8.67 13.6 18.6 5.17 45.2 124.0 3.47 66-1 15.0 0.88 5.51 47.3 36.4 4.82 13.4 13.9 29.5 8.32 65.8 76.7 8.88 70-1 13.7 0.86 4.08 41.7 24.2 3.67 8.38 12.4 20.9 7.13 56.4 82.7 7.81 78-1 14.1 0.23 2.70 36.4 16.7 2.87 6.99 11.1 15.1 3.62 27.0 49.6 3.13 84-1 14.4 0.93 3.96 36.4 19.6 3.68 9.60 10.6 21.2 7.15 57.9 79.6 7.14 Mo Cd In Sb Cs Ba W Tl Pb Bi Th U B 10-1 0.22 0.370 0.037 0.29 4.59 317 1.18 0.58 5.64 0.10 8.87 2.79 22.9 22-1 0.14 0.014 0.018 0.32 1.07 572 0.56 0.10 7.09 0.096 5.34 1.29 21.3 26-1 0.47 0.047 0.019 0.54 1.57 418 0.99 0.15 10.5 0.17 9.89 1.92 36.8 34-1 0.22 0.022 0.015 0.34 1.32 355 0.59 0.12 8.47 0.14 6.57 1.36 25.9 46-1 0.25 0.054 0.027 0.51 1.92 412 0.99 0.18 11.4 0.17 10.6 2.37 43.6 56-1 0.18 0.048 0.045 0.20 1.163216 0.55 0.22 6.37 0.085 2.72 1.11 11.5 66-1 0.20 0.065 0.019 0.35 1.84 375 0.85 0.19 10.1 0.17 9.91 2.31 24.5 70-1 0.17 0.041 0.015 0.44 1.52 825 0.88 0.22 9.90 0.17 9.73 1.96 24.5 78-1 0.64 0.041 0.024 0.19 0.81 496 0.51 0.12 4.87 0.079 2.08 1.57 9.36 84-1 0.14 0.029 0.017 0.38 1.40 360 0.77 0.32 11.2 0.26 8.62 1.98 20.6 : 3 Table3 REEcompositiomofKeziertageFormationsandstonesinKeping w B /10-6 Y La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu 10-1 24.3 38.6 85.8 10.3 37.8 6.05 1.15 5.14 0.80 4.43 0.90 2.52 0.40 2.77 0.46 22-1 15.6 25.7 45.4 6.01 22.7 4.05 0.89 3.63 0.55 2.98 0.57 1.53 0.22 1.50 0.26 26-1 20.4 30.5 57.1 7.06 26.6 4.80 0.94 4.23 0.68 3.81 0.74 2.03 0.31 2.22 0.43 34-1 16.6 27.6 45.9 6.15 23.1 4.12 0.88 3.65 0.57 3.05 0.60 1.54 0.24 1.59 0.29 46-1 28.5 47.7 83.9 10.7 39.8 6.99 1.39 6.09 0.96 5.25 1.05 2.83 0.42 2.96 0.54 56-1 17.0 21.0 34.7 4.83 18.2 3.51 0.77 3.16 0.54 3.05 0.61 1.61 0.24 1.73 0.24 66-1 19.3 35.7 58.2 7.20 26.4 4.72 0.93 4.21 0.64 3.54 0.72 1.97 0.31 2.21 0.45 70-1 18.4 33.6 62.9 7.50 28.0 5.12 1.04 4.28 0.65 3.45 0.68 1.89 0.30 2.13 0.40 78-1 16.2 20.0 29.7 3.68 14.4 2.98 0.74 2.85 0.49 2.82 0.55 1.44 0.21 1.41 0.21 84-1 12.6 21.0 32.5 4.23 16.1 3.02 0.68 2.76 0.44 2.41 0.47 1.28 0.20 1.40 0.26 : 4 Table4 Contrastbetweenofthetraceelement,REEofsandstonesofKeziertageFormationin Kepinganddiferenttectonicenvironment Z Co w B /10-6 Sc/Cr Th/U La w B /10-6 ΣREE LREE/ HREE La/Yb (La/Yb) N δeu 25.4 4.47 0.19 3.9 30.1 134.6 9 15 10.9 0.67 89±18.6 18±6.3 0.57±0.16 2.1±0.78 8±1.7 58±10 3.8±0.9 4.2±1.3 2.8±0.9 1.04±0.11 74±9.8 12±2.7 0.32±0.06 4.6±0.45 27±4.5 146±20 7.7±1.7 11.0±3.6 7.5±2.5 0.79±0.13 52±8.6 10±1.7 0.3±0.02 4.8±0.38 37 186 9.1 12.5 8.5 0.6 26±2.4 5±2.4 0.16±0.02 5.6±0.7 39 210 8.5 15.9 10.8 0.56 : [8-9] 4 U-Pb -,,,,, 7 100~150μm,, Th/U

3 : 11 Fig.7 [14] 0.4, [15-18], TW303-6 TW303-48 U-Pb 5, U-Pb (8), PM303-6, 2600~ 420 Ma, 422 Ma, 3101Ma,, TW303-48 2600 ~420 Ma U-Pb (9), TW303-6 3, 550~420,1200~750,2550~ 2350 Ma 550~420 Ma, 6 11%, 450 Ma, Fig.6 REEpaternsofGreywackeinKeziertageFormation,,, ; 1200~750 Ma, 59%, 2, 850~750,1050~950 Ma,, -,, ;2550 ~2350 Ma 9%, 2500~2450 Ma; 2100~1300 Ma,, TW303-48 PM303-6,, 4, 550~420,1100~700,1800~1550,2500 ~2400 Ma, TW303-6, 550~ 420 Ma, 20%, ;1100~700 Ma, 40%, 2, 850~750 Ma 7 1100~950;1800~1550Ma Cathodoluminescenceimagesofzirconsinsandstonesfrom,1750~1700 Ma;2500~2400 Ma KeziertageFormation TW303-6 Fig.8 8 U-Pb U-PbconcordiaofzirconsinKeziertageFormationsandstones

12 2017 9 U-Pb Fig.9 ColumngraphforzirconagesdistributioninKeziertageFormation Th / U 5 U-Pb Table5 ZirconU-Pbage-datinginKeziertageFormationsandstones t/ma 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 6-1 0.59 0.0655 0.0018 1.1816 0.0344 0.1305 0.0019 791 59 792 16 791 11 99% 6-2 0.43 0.1334 0.0028 5.7581 0.1203 0.3132 0.0052 2143 41 1940 18 1756 25 90% 6-3 0.67 0.1242 0.0024 5.7895 0.1235 0.3371 0.0051 2018 35 1945 18 1873 24 96% 6-4 0.77 0.0739 0.0026 1.3113 0.0482 0.1284 0.0024 1039 71 851 21 779 14 91% 6-5 0.84 0.0682 0.0021 1.2782 0.0399 0.1374 0.0027 876 65 836 18 830 15 99% 6-6 0.28 0.1633 0.0034 9.5583 0.1979 0.4241 0.0067 2490 35 2393 19 2279 30 95% 6-7 0.64 0.0696 0.0023 0.7443 0.0245 0.0780 0.0015 917 64 565 14 484 9 84% 6-8 1.42 0.0770 0.0022 1.4359 0.0385 0.1353 0.0023 1120 56 904 16 818 13 90% 6-9 0.64 0.1045 0.0029 4.3527 0.1264 0.3013 0.0060 1706 56 1703 24 1698 29 99% 6-10 0.28 0.0765 0.0019 1.9895 0.0548 0.1877 0.0034 1109 55 1112 19 1109 19 99% 6-11 0.26 0.0774 0.0018 2.1351 0.0506 0.2001 0.0037 1132 52 1160 16 1176 20 98% 6-12 0.50 0.0749 0.0023 0.7170 0.0209 0.0697 0.0012 1133 59 549 12 435 7 76% 6-13 0.68 0.0855 0.0029 1.8590 0.0707 0.1625 0.0061 1328 65 1067 25 971 34 90% 6-14 0.88 0.0749 0.0027 1.3773 0.0483 0.1340 0.0026 1066 73 879 21 810 15 91% 6-15 0.78 0.0689 0.0021 1.5679 0.0474 0.1670 0.0037 898 64 958 19 995 20 96% 6-16 0.76 0.0761 0.0020 1.4649 0.0417 0.1391 0.0026 1098 54 916 17 839 15 91% 6-17 0.60 0.0854 0.0024 2.7696 0.0850 0.2358 0.0056 1325 59 1347 23 1365 29 98% 6-18 0.70 0.1225 0.0030 6.0047 0.1481 0.3549 0.0058 1994 43 1977 21 1958 28 99% 6-19 1.29 0.0828 0.0036 1.4306 0.0587 0.1266 0.0026 1265 87 902 25 769 15 84% 6-20 0.81 0.0656 0.0033 1.2210 0.0656 0.1348 0.0031 794 107 810 30 815 18 99% 6-21 0.06 0.0688 0.0019 1.4782 0.0429 0.1566 0.0033 892 56 921 18 938 18 98% 6-22 0.96 0.0680 0.0020 1.3700 0.0443 0.1459 0.0027 878 62 876 19 878 15 99% 6-23 0.54 0.0731 0.0022 1.7450 0.0545 0.1738 0.0032 1017 62 1025 20 1033 18 99% 6-24 0.58 0.0760 0.0031 0.7488 0.0295 0.0723 0.0016 1096 81 568 17 450 9 76% 6-25 0.72 0.0795 0.0060 1.4825 0.1171 0.1405 0.0052 1187 149 923 48 847 29 91% 6-26 0.60 0.0914 0.0028 2.9340 0.0903 0.2332 0.0044 1455 63 1391 23 1351 23 97% 6-27 0.34 0.0811 0.0027 1.1906 0.0404 0.1065 0.0020 1233 60 796 19 652 12 80% 6-28 0.42 0.0590 0.0019 0.6511 0.0224 0.0802 0.0016 569 69 509 14 497 10 97% 6-29 0.86 0.1713 0.0052 12.4609 0.3995 0.5339 0.0129 2572 50 2640 30 2758 54 95% 6-30 0.25 0.0834 0.0023 1.4270 0.0387 0.1253 0.0031 1280 49 900 16 761 18 83% 6-31 0.55 0.0737 0.0020 1.7540 0.0487 0.1727 0.0030 1033 56 1029 18 1027 16 99% 6-32 1.51 0.0707 0.0034 1.2853 0.0564 0.1339 0.0029 947 94 839 25 810 17 96% 6-33 2.14 0.0693 0.0040 1.3610 0.0692 0.1474 0.0036 907 125 872 30 886 20 98% 6-34 0.86 0.1616 0.0048 9.1913 0.2824 0.4153 0.0082 2473 50 2357 28 2239 37 94% 6-35 0.59 0.0746 0.0022 1.8170 0.0550 0.1774 0.0035 1057 59 1052 20 1053 19 99% 6-36 0.54 0.0684 0.0030 1.5543 0.0742 0.1642 0.0035 883 93 952 30 980 19 97% 6-37 0.73 0.0630 0.0021 0.6742 0.0245 0.0774 0.0016 706 70 523 15 480 9 91% 6-38 1.23 0.0771 0.0020 1.9753 0.0495 0.1862 0.0029 1124 52 1107 17 1101 16 99% 6-39 1.14 0.1115 0.0043 1.0310 0.0368 0.0682 0.0013 1824 70 719 18 425 8 48% 6-40 0.77 0.0679 0.0027 1.3424 0.0530 0.1439 0.0024 865 79 864 23 867 14 99%

3 : 13 5 Th / U t/ma 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 6-41 0.88 0.0588 0.0021 0.6098 0.0213 0.0757 0.0016 561 80 483 13 470 9 97% 6-42 0.52 0.1065 0.0028 4.5782 0.1357 0.3107 0.0059 1740 48 1745 25 1744 29 99% 6-43 0.41 0.0704 0.0029 1.6079 0.0672 0.1656 0.0034 943 89 973 26 988 19 98% 6-44 0.51 0.0797 0.0024 0.7845 0.0251 0.0713 0.0014 1191 61 588 14 444 9 72% 6-45 0.77 0.0861 0.0025 2.5244 0.0662 0.2157 0.0047 1340 55 1279 19 1259 25 98% 6-46 1.04 0.1837 0.0046 11.8680 0.3056 0.4717 0.0102 2687 36 2594 24 2491 45 95% 6-47 0.30 0.0816 0.0022 1.7501 0.0486 0.1568 0.0033 1236 60 1027 18 939 18 91% 6-48 0.66 0.0838 0.0037 1.8595 0.0808 0.1625 0.0033 1300 87 1067 29 971 18 90% 6-49 0.48 0.0762 0.0030 1.6048 0.0610 0.1542 0.0032 1100 78 972 24 924 18 94% 6-50 2.07 0.0826 0.0026 1.1279 0.0367 0.1008 0.0030 1261 62 767 18 619 18 78% 6-51 0.45 0.1518 0.0035 9.2229 0.2215 0.4414 0.0078 2366 40 2360 22 2357 35 99% 6-52 0.36 0.1633 0.0052 10.1365 0.2828 0.4575 0.0133 2490 54 2447 26 2428 59 99% 6-53 0.42 0.0736 0.0019 1.5253 0.0411 0.1509 0.0027 1031 54 941 17 906 15 96% 6-54 0.41 0.0787 0.0018 2.1221 0.0537 0.1955 0.0034 1165 46 1156 17 1151 18 99% 6-55 1.13 0.0751 0.0027 1.5101 0.0538 0.1462 0.0028 1072 72 934 22 879 16 93% 6-56 0.33 0.0742 0.0025 1.7872 0.0639 0.1745 0.0028 1056 72 1041 23 1037 15 99% 6-57 0.51 0.0709 0.0027 1.6316 0.0628 0.1684 0.0035 954 76 982 24 1003 19 97% 6-58 0.34 0.1871 0.0032 13.8469 0.2756 0.5348 0.0088 2717 29 2739 19 2762 37 99% 6-59 0.56 0.0847 0.0020 2.6258 0.0677 0.2243 0.0042 1309 46 1308 19 1304 22 99% 6-60 1.00 0.1098 0.0035 3.3305 0.0873 0.2224 0.0047 1795 59 1488 20 1294 25 86% 6-61 0.78 0.0556 0.0019 0.5747 0.0200 0.0747 0.0011 435 71 461 13 464 6 99% 6-62 2.18 0.1677 0.0048 2.2790 0.0733 0.0982 0.0019 2535 48 1206 23 604 11 33% 6-63 0.73 0.0711 0.0020 0.7442 0.0202 0.0756 0.0009 961 57 565 12 470 5 81% 6-64 1.00 0.0757 0.0036 1.2892 0.0481 0.1274 0.0025 1087 99 841 21 773 14 91% 6-65 0.45 0.0734 0.0026 1.4004 0.0526 0.1384 0.0030 1026 73 889 22 835 17 93% 6-66 0.72 0.0589 0.0020 0.5450 0.0182 0.0677 0.0013 565 76 442 12 422 8 95% 6-67 0.74 0.0549 0.0024 0.5279 0.0240 0.0694 0.0012 406 98 430 16 432 7 99% 6-68 0.53 0.0704 0.0017 1.5388 0.0419 0.1578 0.0023 939 52 946 17 945 13 99% 6-69 0.39 0.2370 0.0052 16.9782 0.4860 0.5251 0.0148 3102 35 2934 27 2721 62 92% 6-70 0.44 0.0840 0.0023 1.8500 0.0554 0.1614 0.0041 1294 54 1063 20 965 23 90% 6-71 0.67 0.0887 0.0035 1.5325 0.0563 0.1264 0.0026 1398 76 943 23 768 15 79% 6-72 1.68 0.0771 0.0034 1.7687 0.0738 0.1697 0.0043 1124 87 1034 27 1010 24 97% 6-73 0.66 0.1586 0.0036 11.8887 0.2964 0.5475 0.0120 2443 38 2596 23 2815 50 91% 6-74 0.67 0.0724 0.0018 1.3319 0.0326 0.1340 0.0022 996 56 860 14 810 12 94% 6-75 2.21 0.0673 0.0017 1.1752 0.0284 0.1268 0.0017 856 54 789 13 770 10 97% 6-76 0.61 0.1585 0.0035 8.7033 0.2040 0.3988 0.0073 2440 37 2307 21 2163 33 93% 6-77 0.87 0.0584 0.0013 0.6682 0.0154 0.0825 0.0010 543 48 520 9 511 6 98% 6-78 0.61 0.0827 0.0016 1.8567 0.0432 0.1623 0.0028 1263 34 1066 15 969 15 90% 6-79 0.89 0.1649 0.0040 10.7777 0.2717 0.4756 0.0098 2507 41 2504 23 2508 43 99% 6-80 0.64 0.0623 0.0020 0.5972 0.0200 0.0692 0.0012 687 67 475 13 431 7 90% 48-1 1.83 0.1166 0.0045 2.0689 0.0865 0.1285 0.0024 1906 70 1139 29 779 14 62% 48-2 1.36 0.0619 0.0021 0.6163 0.0210 0.0727 0.0012 733 74 488 13 452 7 92% 48-3 0.54 0.0566 0.0017 0.5826 0.0175 0.0749 0.0012 476 69 466 11 466 7 99% 48-4 0.32 0.0808 0.0016 1.9256 0.0372 0.1729 0.0026 1217 40 1090 13 1028 14 94% 48-5 1.23 0.1050 0.0020 4.3894 0.0879 0.3022 0.0045 1717 35 1710 17 1702 22 99% 48-6 0.21 0.0720 0.0016 1.6923 0.0392 0.1700 0.0028 987 44 1006 15 1012 15 99% 48-7 1.24 0.0669 0.0019 1.2380 0.0368 0.1336 0.0024 835 62 818 17 808 14 98% 48-8 0.67 0.1087 0.0021 4.4937 0.0846 0.2985 0.0044 1777 35 1730 16 1684 22 97% 48-9 0.84 0.0919 0.0033 1.4914 0.0456 0.1203 0.0033 1466 75 927 19 733 19 76% 48-10 0.45 0.0745 0.0019 2.0234 0.0529 0.1966 0.0036 1055 51 1123 18 1157 19 97% 48-11 0.28 0.0734 0.0019 2.0247 0.0587 0.1992 0.0039 1028 52 1124 20 1171 21 95% 48-12 1.01 0.0666 0.0033 1.3771 0.0666 0.1519 0.0033 833 102 879 28 912 19 96% 48-13 0.23 0.0709 0.0016 1.6765 0.0396 0.1705 0.0028 954 47 1000 15 1015 15 98% 48-14 0.36 0.0686 0.0019 1.3779 0.0386 0.1453 0.0024 887 58 880 16 875 14 99% 48-15 0.64 0.0679 0.0027 0.6873 0.0268 0.0733 0.0013 865 79 531 16 456 8 84% 48-16 0.53 0.0974 0.0027 3.6291 0.1097 0.2690 0.0055 1576 53 1556 24 1536 28 98% 48-17 0.51 0.0576 0.0019 0.6586 0.0210 0.0832 0.0015 522 72 514 13 515 9 99% 48-18 0.39 0.0984 0.0028 0.9263 0.0240 0.0685 0.0012 1594 58 666 13 427 7 56% 48-19 0.56 0.0858 0.0024 1.1878 0.0355 0.1006 0.0020 1400 55 795 16 618 12 74% 48-20 0.32 0.0685 0.0016 1.4359 0.0335 0.1527 0.0028 883 48 904 14 916 15 98%

14 2017 5 Th / U t/ma 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 207 Pb/ 206 Pb 1σ 207 Pb/ 235 U 1σ 206 Pb/ 238 U 1σ 48-21 0.47 0.1617 0.0034 10.7066 0.2286 0.4827 0.0091 2473 35 2498 20 2539 40 98% 48-22 0.41 0.1413 0.0035 8.6322 0.2160 0.4439 0.0074 2244 44 2300 23 2368 33 97% 48-23 0.18 0.0787 0.0018 1.8339 0.0470 0.1688 0.0029 1165 46 1058 17 1006 16 94% 48-24 0.43 0.0679 0.0021 1.0115 0.0305 0.1089 0.0021 865-136 710 15 666 12 93% 48-25 0.55 0.0828 0.0027 1.0320 0.0354 0.0904 0.0014 1265 65 720 18 558 8 74% 48-26 0.36 0.0703 0.0025 1.8546 0.0684 0.1931 0.0040 1000 73 1065 24 1138 22 93% 48-27 0.59 0.1608 0.0032 10.6551 0.2059 0.4839 0.0085 2465 33 2494 18 2544 37 97% 48-28 1.25 0.0714 0.0023 1.2526 0.0388 0.1285 0.0021 969 67 825 17 779 12 94% 48-29 1.26 0.0514 0.0020 0.4908 0.0176 0.0706 0.0014 261 87 405 12 440 8 91% 48-30 0.80 0.1732 0.0033 1.4875 0.0347 0.0620 0.0011 2591 32 925 14 388 7 18% 48-31 1.31 0.0702 0.0024 1.2479 0.0422 0.1303 0.0024 1000 75 822 19 790 14 95% 48-32 1.20 0.0665 0.0015 1.1772 0.0289 0.1278 0.0017 820 53 790 13 775 10 98% 48-33 1.08 0.0655 0.0035 0.6558 0.0367 0.0724 0.0013 791 110 512 23 451 8 87% 48-34 0.58 0.0838 0.0024 2.2680 0.0721 0.1952 0.0032 1288 56 1202 22 1150 17 95% 48-35 0.63 0.1605 0.0030 10.2375 0.2204 0.4615 0.0084 2461 33 2456 20 2446 37 99% 48-36 0.94 0.0743 0.0026 1.1949 0.0367 0.1192 0.0025 1050 71 798 17 726 15 90% 48-37 0.91 0.0624 0.0025 0.5804 0.0233 0.0681 0.0013 687 81 465 15 425 8 91% 48-38 0.66 0.0591 0.0026 0.5754 0.0237 0.0721 0.0014 569 94 461 15 449 8 97% 48-39 0.56 0.1218 0.0027 6.3439 0.1470 0.3805 0.0082 1983 40 2025 20 2079 38 97% 48-40 0.35 0.0965 0.0024 2.8802 0.0752 0.2170 0.0047 1567 46 1377 20 1266 25 91% 48-41 0.26 0.1640 0.0035 9.5497 0.2305 0.4188 0.0087 2498 35 2392 22 2255 40 94% 48-42 0.70 0.0574 0.0017 0.6141 0.0176 0.0772 0.0013 509 65 486 11 479 8 98% 48-43 0.78 0.0590 0.0024 0.5927 0.0248 0.0726 0.0012 565 91 473 16 452 7 95% 48-44 0.37 0.0760 0.0016 1.2991 0.0297 0.1228 0.0020 1096 43 845 13 747 11 87% 48-45 1.43 0.0638 0.0019 0.6256 0.0191 0.0704 0.0010 744 61 493 12 438 6 88% 48-46 0.39 0.0733 0.0022 1.7079 0.0552 0.1686 0.0035 1033 62 1011 21 1004 19 99% 48-47 0.35 0.0566 0.0014 0.5687 0.0131 0.0729 0.0011 476 54 457 9 454 7 99% 48-48 0.79 0.1036 0.0021 4.2518 0.0729 0.2979 0.0041 1700 37 1684 14 1681 20 99% 48-49 1.12 0.0742 0.0025 1.7537 0.0576 0.1721 0.0030 1056 67 1029 21 1024 16 99% 48-50 1.03 0.2411 0.0120 5.6150 0.3013 0.1676 0.0041 3127 80 1918 46 999 22 36% 48-51 0.58 0.0591 0.0019 0.6181 0.0213 0.0757 0.0014 572 72 489 13 470 9 96% 48-52 0.48 0.1592 0.0031 9.8490 0.2059 0.4471 0.0068 2447 33 2421 19 2382 30 98% 48-53 0.63 0.0762 0.0020 1.9994 0.0544 0.1908 0.0033 1099 48 1115 18 1126 18 99% 48-54 1.31 0.0723 0.0022 1.6582 0.0519 0.1658 0.0029 995 28 993 20 989 16 99% 48-55 0.49 0.1727 0.0040 12.8064 0.3086 0.5393 0.0104 2584 38 2666 23 2781 43 95% 48-56 0.20 0.1855 0.0039 6.6493 0.2356 0.2598 0.0085 2703 2 2066 31 1489 44 67% 48-57 1.34 0.0586 0.0029 0.7002 0.0346 0.0867 0.0015 550 106 539 21 536 9 99% 48-58 0.61 0.0715 0.0018 1.6552 0.0448 0.1672 0.0023 972 58 992 17 997 13 99% 48-59 0.37 0.0747 0.0015 1.7410 0.0377 0.1681 0.0022 1061 41 1024 14 1002 12 97% 48-60 0.58 0.1043 0.0034 4.3836 0.1339 0.3064 0.0052 1702 59 1709 25 1723 26 99% 48-61 0.24 0.2339 0.0038 20.0999 0.3572 0.6200 0.0077 3079 25 3096 17 3110 31 99% 48-62 0.80 0.1187 0.0030 2.2962 0.0605 0.1400 0.0020 1936 41 1211 19 845 11 64% 48-63 0.51 0.0732 0.0017 1.6357 0.0406 0.1614 0.0021 1018 48 984 16 965 12 98% 48-64 0.42 0.0791 0.0025 1.7355 0.0508 0.1597 0.0026 1176 57 1022 19 955 15 93% 48-65 0.10 0.1613 0.0029 10.8538 0.2279 0.4842 0.0067 2469 30 2511 20 2546 29 98% 48-66 0.30 0.0751 0.0019 1.7993 0.0449 0.1734 0.0025 1072 51 1045 16 1031 14 98% 48-67 0.44 0.1588 0.0029 10.9159 0.2151 0.4964 0.0071 2443 31 2516 18 2598 31 96% 48-68 1.00 0.0989 0.0029 4.1812 0.1319 0.3058 0.0051 1603 56 1670 26 1720 25 97% 48-69 2.58 0.1779 0.0102 9.5326 0.5846 0.4029 0.0153 2635 96 2391 56 2182 70 90% 48-70 0.54 0.1335 0.0029 5.2905 0.1225 0.2862 0.0050 2146 39 1867 20 1623 25 85% 48-71 0.71 0.1668 0.0038 1.6926 0.0359 0.0740 0.0015 2528 39 1006 14 461 9 25% 48-72 0.87 0.0636 0.0028 1.2402 0.0575 0.1403 0.0025 728 95 819 26 846 14 96% 48-73 0.79 0.0674 0.0015 1.4977 0.0339 0.1596 0.0023 850 46 929 14 954 13 97% 48-74 0.77 0.1490 0.0032 9.5987 0.2157 0.4641 0.0069 2344 37 2397 21 2457 30 97% 48-75 1.03 0.0578 0.0019 0.5933 0.0179 0.0748 0.0011 524 69 473 11 465 6 98% 48-76 0.61 0.1204 0.0027 6.1093 0.1455 0.3656 0.0052 1963 41 1992 21 2008 25 99% 48-77 0.62 0.0711 0.0017 1.6187 0.0412 0.1646 0.0025 961 50 977 16 982 14 99% 48-78 1.18 0.1042 0.0052 3.7778 0.1720 0.2672 0.0060 1700 93 1588 37 1526 30 96% 48-79 0.40 0.1578 0.0026 9.8257 0.1736 0.4487 0.0054 2432 28 2419 16 2390 24 98% 48-80 0.80 0.0662 0.0027 1.2615 0.0513 0.1382 0.0021 813 87 829 23 835 12 99% :

3 : 15 550~400 Ma, - - 5.1 550~400 Ma,, -,,,, [22,25-26], - [20-22,28-29],,,, 550~400 Ma, [23] 550~400 Ma, [19], (10) [30-33], [20-27],, 550~400 (6), Ma,, 550~400 Ma 450~400 Ma, -, 5 10 ( [30-33] ) Fig.10 Paleo-geographymapofKeziertageFormationinTarim Basin [21-27,36-43] 1050~750 Ma1800~1550 Ma 2550~2400 Ma [36-38], [34-35], ;1800~1550Ma [25-26], [39] 2550~2400 Ma ;1200~750 Ma Rodinia,,1100~950,800~750, TTG Ma Rodinia [23-24],, [40-42] Rodinia ;550~400 Ma 5.2 [28-29,43],,

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3 : 17,2007,23(11):3003-3014. [28],,. [J].,2012,58(5):923-936. [J].,2013,20(4): 251-263. [29],. [38],. 238. - [J].,2012,31(4):730-739. [31],. - [40],,,. [J].,2008,26(5):762-771. [32],,.,2015,89(1):149-162. [J].,2002,4(1):13-24. [33],,. - [J].,2015,58(2):589-600. - [J]., [42],,. 2011,33(6):580-586. [J].,2010,26(2): [34],. 547-558. [J].,2011, [43],,. ( ) 30(2):172-184. : U-Pb [J].,2014,30(11):3357-3365. [36],. [37]. - [D]. :,2014. [J].,2006,80(1):126-133. [39],,,. - 2352. : [J]. [41],,. Rodinia cordandtectonicseting[j].geology,2012,40(10):875-878. ProvenanceandTectonicSignificanceoftheSandstone indevoniankeziertageformationinkeping,xinjiang YanKun 1,LiWei 1,SunJungang 1,YangBaozhong 2,LiXiaoyang 1,SuJia 3 (1.The7thGoldDetachmentPartyofChineseArmedPoliceForce,YantaiShandong264004,China; 2.SchoolofEarthSciences,ChinaUniversityofGeosciences(Wuhan),Wuhan430074; 3.The5thGoldDetachmentPartyofChineseArmedPoliceForce,Xi an710000,china) [J],2013,32(3):220- [30],,,. - [J].,2012,28(8):2345- [35],,,.,2011,27(1):23-46. : U-Pb HF [J]. [44]GawoodPA,HawkesworthCJ,DhuimeB.Detritalzirconre- Abstract:Theanalysesoflithogeochemicalcharacteristicsofthesandstonein KeziertageFormationat Keping,Xinjiangshowthatthestableelements(Al 2O 3,Fe 2O 3,MnO)aremorethantheunstableelements (MgO,K 2O,Na 2O).Thisilustratesthatthesandstonemusthavegonethroughadistanttransportation. Therearemorelightrareearthelementsthanheavyrareearthelements,andEuisobviouslyanomal.The comprehensivegeochemicalanalysessuggestthatthetectonicsetingisapassivecontinentalmargin.the mainprovenanceregionisthemelowquartziferousprovenance,withafewfromthegranitearea.thezir- conu-pbdatingindicatesthattherockagesaregroupedin550-400ma,1050-750ma,1800-1550ma and2550-2400 Ma,whichareresponsesoffourtectonothermaleventsinTarimarea.Accordingtore- sultsofgeochemicalcharacteristicsandzirconu-pbages,themainprovenanceregionisprecambrianbase- mentandearlypalaeozoiceraigneousrockinthenorthtarimuplift. Keywords:KeziertageFormation;majorelement;traceelement;clasticzircon;U-Pbdating