Zircon U-Pb Geochronology of Volcanic Rocks from Gaojiayu Formation, Liaohe Group, Liaoning Province and Its Geological Significance
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摘要: 处于龙岗地块和狼林地块之间的古元古代辽吉构造带内分布有大量的变质沉积-火山地层，在辽宁地区称为辽河群.对于辽河群沉积时限及其内部各岩组之间关系的认识一直存在分歧.为了限制古元古代变沉积岩（辽河群）的沉积时限及其内部各层位间关系，选择辽东地区高家峪组火山岩进行锆石U-Pb LA-ICP-MS年代学研究.测年结果显示高家峪组代表岩石成岩年龄的岩浆活动有4期2 179~2 145 Ma、2 079 Ma、1 985 Ma、1 928 Ma.结合前人已发表辽河群火山岩年代学数据显示，辽河群火山活动主要集中在3期：第1期（2 210~2 140 Ma）早期岩浆活动主要为酸性火山岩，在末期显示双峰式火山岩组合；第2期（2 100~2 050 Ma）岩浆活动以基性岩浆活动为主；第3期（2 000~1 960 Ma）岩浆活动也显示双峰式火山岩组合.辽河群火山岩的形成年龄将其沉积时限限制于2 229~1 928 Ma，沉积作用至少持续了300 Ma.火山岩年代学结果显示，辽河群浪子山组、里尔峪组、高家峪组和大石桥组火山岩形成时代呈现互相交替穿插关系，没有显示规律性的上下有序关系.结合野外辽河群各岩组之间多以韧性剪切带形式接触，认为辽河群各岩组之间不是从底到顶的有序沉积，而是“整体无序，局部有序”.Abstract: There are a large number of meta-sedimentary-volcanic strata in the Paleoproterozoic Liaoji belt between Longgang block and Langlin block,which is called Liaohe Group. There has been a debate on the sedimentary time of the Liaohe Group and the relationship among its inner groups. In order to solve these problems,the zircon U-Pb LA-ICP-MS geochronology of the volcanic rocks from the Gaojiayu Formation in the eastern Liaoning Province is studied. The dating results show that the magmatic activities of the Gaojiayu Formation can be divided into four stages:2 179-2 145 Ma,2 079 Ma,1 985 Ma and 1 928 Ma. Combining with the published chronological data,the volcanic activities in the Liaohe Group are mainly concentrated in three stages:the early magmatic activity in the first stage (2 210-2 140 Ma) is mainly acid volcanic rock,showing bimodal volcanic rock assemblage in the late stage; the second stage (2 100-2 050 Ma) magmatism is dominated by basic magmatism; the third stage (2 000-1 960 Ma) magmatism also shows bimodal volcanic rock assemblage. The sedimentary time of the Liaohe Group is limited to 2 229-1 928 Ma by the age of the volcanic rocks,and the deposition lasts at least 300 Ma. The chronological results show the ages of the of volcanic rocks in the Langzishan Formation,Lieryu Formation,Gaojiayu Formation and Dashiqiao Formation of Liaohe Group are alternant,and there is no regular upper-lower orderly relationship. In combination with the fact that the formations of Liaohe Group in the field mostly contact in the form of ductile shear zone,it is considered that the rock groups of Liaohe Group are not orderly sedimentary from the bottom to the top,but "disordered as a whole and orderly as a part".
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Key words:
- Liaohe Group /
- Gaojiayu Formation /
- volcanic rock /
- zircon U-Pb chronology /
- geological significance /
- petrology
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图 2 辽东地区高家峪组火山岩野外照片及显微照片
a.D15015黑色流纹岩与粉色流纹岩互层；b.D15015流纹岩镜下特征；c.HLY-3河栏峪枕状玄武岩；d.D1423-1斜长角闪岩镜下特征（1×100）；e.D1484-3斜长角闪岩显微特征（1×25）；f.HLY-3枕状玄武岩显微特征（1×100）
Fig. 2. Field photographs and photomicrographs of the volcanic rocks from the Gaojiayu Formation in eastern Liaoning
图 3 辽东地区高家峪组火山岩部分锆石阴极发光图像
Fig. 3. CL images of the selected zircons of volcanic rocks from the Gaojiayu Formation in eastern Liaoning
图 4 辽东地区高家峪组火山岩锆石U-Pb年龄谐和图
红色代表成岩年龄；蓝色代表变质年龄；绿色代表捕获年龄
Fig. 4. Zircons U-Pb ages of volcanic rocks from the Gaojiayu Formation in eastern Liaoning
图 5 辽吉构造带辽河群火山岩锆石U-Pb年龄柱状图
数据列于表 3
Fig. 5. Histogram showing zircon U-Pb ages of volcanic rocks from the Liaohe Group in the Liaoji belt
表 1 辽东地区高家峪组火山岩同位素采集点及岩性
Table 1. Isotope collection point and lithology of samples from the Gaojiayu Formation in eastern Liaoning
样品号 采样层位 岩性 矿物组合 采样位置 测年结果 D15015 高家峪组中上部 流纹岩 微斜长石(60%) +石英(30%) 0531216, 4537862 2 179 Ma（成岩）2 469 Ma（捕获） D1423-1 高家峪组下部 斜长角闪岩 斜长石(50%) +角闪石(45%) 0520884, 4513400 2 079 Ma（成岩）1 912 Ma（变质） D1484-3 高家峪组下部 斜长角闪岩 角闪石(45%) +斜长石(50%) 0578560, 4499250 1 864 Ma（变质）1 681 Ma（变质） D1488-1 高家峪组中部 斜长角闪岩 角闪石(45%) +斜长石(45%) +黑云母(5%) 0572253, 4514900 2 145 Ma（成岩）2 447 Ma（捕获）1 818 Ma（变质） D15054 高家峪组中部 斜长角闪岩 角闪石(50%) +斜长石(40%) +黑云母(5%) 0530318, 4526635 1 985 Ma（成岩）1 933 Ma（变质） HLY-3 高家峪组下部 枕状玄武岩 斜长石(6%) +辉石(4%) 0524399, 4530280 1 928 Ma（成岩）2 173 Ma（捕获） 
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表 2 辽东地区高家峪组火山岩样品中锆石LA⁃ICP⁃MS U⁃Pb分析结果
Table 2. LA-ICP-MS zircon U-Pb dating of volcanic rocks from the Gaojiayu Formation in eastern Liaoning
样品号 Pb（10-6） Th（10-6） U（10-6） Th/U 同位素比值 年龄(Ma) 207Pb/206Pb 207Pb/235U 206Pb/238U 207Pb/206Pb 207Pb/235U 206Pb/238U 比值 1σ 比值 1σ 比值 1σ 年龄 1σ 年龄 1σ 年龄 1σ D15015-01 74 161 263 0.61 0.130 93 0.001 58 3.868 52 0.053 93 0.214 29 0.002 75 2 110 11 1 607 11 1 252 15 D15015-02 138 192 256 0.75 0.142 58 0.001 69 7.628 00 0.105 41 0.388 00 0.005 00 2 259 11 2 188 12 2 114 23 D15015-03 165 220 310 0.71 0.133 13 0.002 13 7.358 45 0.126 51 0.400 84 0.005 69 2 140 14 2 156 15 2 173 26 D15015-04 71 83 146 0.57 0.137 96 0.001 99 6.977 37 0.110 67 0.366 77 0.005 02 2 202 12 2 109 14 2 014 24 D15015-05 181 161 348 0.46 0.137 48 0.002 49 7.605 34 0.143 95 0.401 18 0.006 03 2 196 15 2 185 17 2 174 28 D15015-06 93 190 240 0.79 0.137 76 0.002 03 5.333 68 0.085 38 0.280 75 0.003 85 2 199 12 1 874 14 1 595 19 D15015-07 67 70 133 0.52 0.138 66 0.003 60 7.273 62 0.156 82 0.380 45 0.005 48 2 211 46 2 146 19 2 078 26 D15015-08 238 277 470 0.59 0.146 78 0.002 72 7.758 84 0.148 98 0.383 31 0.005 88 2 309 15 2 203 17 2 092 27 D15015-09 186 274 387 0.71 0.135 89 0.003 43 6.795 32 0.170 16 0.362 60 0.006 48 2 175 21 2 085 22 1 994 31 D15015-10 207 234 392 0.60 0.133 81 0.002 33 7.421 59 0.136 15 0.402 18 0.005 96 2 149 15 2 164 16 2 179 27 D15015-11 97 86 197 0.44 0.135 53 0.001 78 7.184 13 0.106 38 0.384 39 0.005 14 2 171 12 2 135 13 2 097 24 D15015-12 96 127 208 0.61 0.143 82 0.001 81 6.823 90 0.097 83 0.344 06 0.004 55 2 274 11 2 089 13 1 906 22 D15015-13 130 208 241 0.86 0.135 30 0.002 65 7.373 77 0.148 39 0.395 20 0.006 20 2 168 16 2 158 18 2 147 29 D15015-14 155 181 305 0.59 0.137 18 0.002 11 7.219 18 0.119 62 0.381 62 0.005 40 2 192 13 2 139 15 2 084 25 D15015-15 354 492 678 0.73 0.134 14 0.001 42 7.019 17 0.090 08 0.379 47 0.004 82 2 153 10 2 114 11 2 074 23 D15015-16 127 141 194 0.73 0.161 23 0.001 79 10.602 22 0.139 81 0.476 87 0.006 17 2 469 10 2 489 12 2 514 27 D15015-17 104 104 218 0.48 0.132 54 0.001 50 6.777 30 0.090 55 0.370 81 0.004 79 2 132 11 2 083 12 2 033 23 D15015-18 128 222 274 0.81 0.131 09 0.001 99 6.236 05 0.102 11 0.344 99 0.004 85 2 113 13 2 010 14 1 911 23 D15015-19 48 83 83 1.00 0.135 81 0.001 72 7.414 36 0.106 53 0.395 92 0.005 29 2 174 11 2 163 13 2 150 24 D15015-20 191 252 361 0.70 0.133 04 0.001 42 7.159 91 0.091 93 0.390 32 0.004 99 2 138 10 2 132 11 2 124 23 D15015-21 50 93 101 0.92 0.133 58 0.002 04 6.398 86 0.104 99 0.347 42 0.004 92 2 146 13 2 032 14 1 922 24 D15015-22 123 148 220 0.67 0.132 42 0.001 50 7.628 27 0.101 54 0.417 82 0.005 42 2 130 11 2 188 12 2 251 25 D15015-23 129 174 256 0.68 0.137 95 0.001 56 7.121 39 0.094 72 0.374 43 0.004 87 2 202 10 2 127 12 2 050 23 D1423-1-01 22 22 57 0.38 0.117 34 0.003 15 5.592 39 0.157 11 0.345 59 0.004 18 1 916 33 1 915 24 1 914 20 D1423-1-02 7 7 16 0.47 0.128 83 0.003 95 6.763 52 0.213 36 0.380 69 0.005 05 2 082 37 2 081 28 2 080 24 D1423-1-03 14 18 36 0.52 0.119 27 0.003 42 5.778 09 0.172 05 0.351 29 0.004 44 1 945 35 1 943 26 1 941 21 D1423-1-04 18 15 48 0.32 0.116 37 0.003 25 5.488 36 0.159 43 0.341 99 0.004 24 1 901 34 1 899 25 1 896 20 D1423-1-05 15 18 41 0.45 0.117 12 0.003 50 5.502 83 0.169 57 0.340 71 0.004 40 1 913 37 1 901 26 1 890 21 D1423-1-06 16 22 43 0.52 0.114 38 0.003 35 5.318 21 0.161 45 0.337 14 0.004 29 1 870 36 1 872 26 1 873 21 D1423-1-07 11 18 28 0.63 0.113 56 0.003 58 5.439 71 0.176 16 0.347 34 0.004 61 1 857 39 1 891 28 1 922 22 D1423-1-08 14 18 37 0.47 0.115 56 0.003 44 5.438 88 0.167 42 0.341 28 0.004 39 1 889 37 1 891 26 1 893 21 D1423-1-09 13 14 32 0.44 0.116 97 0.003 38 5.588 67 0.167 55 0.346 46 0.004 35 1 910 36 1 914 26 1 918 21 D1423-1-10 11 16 28 0.57 0.120 18 0.003 95 5.734 49 0.192 88 0.346 00 0.004 63 1 959 41 1 937 29 1 915 22 D1423-1-11 9 12 22 0.55 0.121 58 0.003 99 5.817 41 0.196 02 0.346 95 0.004 56 1 980 41 1 949 29 1 920 22 D1423-1-12 91 100 216 0.46 0.127 40 0.003 28 6.645 17 0.180 45 0.378 23 0.004 44 2 062 31 2 065 24 2 068 21 D1423-1-13 8 16 20 0.79 0.118 81 0.003 68 5.718 55 0.182 45 0.349 01 0.004 53 1 938 38 1 934 28 1 930 22 D1423-1-14 18 21 47 0.45 0.117 50 0.003 32 5.620 18 0.165 24 0.346 84 0.004 29 1 919 35 1 919 25 1 919 21 D1423-1-15 15 16 40 0.40 0.111 06 0.004 01 5.154 47 0.188 83 0.336 53 0.004 90 1 817 45 1 845 31 1 870 24 D1423-1-16 15 15 42 0.37 0.118 07 0.003 45 5.652 41 0.171 15 0.347 15 0.004 40 1 927 36 1 924 26 1 921 21 D1423-1-17 17 42 39 1.09 0.115 25 0.003 41 5.381 71 0.164 86 0.338 61 0.004 27 1 884 37 1 882 26 1 880 21 D1423-1-18 13 20 32 0.62 0.119 88 0.003 67 5.694 36 0.179 64 0.344 43 0.004 46 1 954 38 1 931 27 1 908 21 D1423-1-19 13 12 35 0.33 0.115 67 0.003 35 5.460 08 0.164 39 0.342 30 0.004 24 1 890 36 1 894 26 1 898 20 D1423-1-20 13 12 35 0.35 0.117 58 0.003 49 5.596 51 0.172 54 0.345 14 0.004 30 1 920 37 1 916 27 1 911 21 D1423-1-21 8 11 17 0.65 0.130 97 0.004 76 6.915 81 0.254 90 0.382 89 0.005 62 2 111 44 2 101 33 2 090 26 D1423-1-22 16 19 44 0.42 0.118 73 0.003 47 5.701 18 0.172 91 0.348 18 0.004 40 1 937 36 1 932 26 1 926 21 D1423-1-23 24 28 64 0.44 0.116 21 0.003 52 5.670 70 0.177 14 0.353 84 0.004 59 1 899 37 1 927 27 1 953 22 D1484-3-01 370 140 890 0.16 0.098 97 0.001 86 4.589 07 0.063 09 0.336 11 0.004 67 1 605 12 1 747 11 1 868 23 D1484-3-02 374 123 905 0.14 0.101 34 0.001 90 4.682 54 0.064 29 0.334 89 0.004 66 1 649 12 1 764 11 1 862 23 D1484-3-03 557 321 1 323 0.24 0.099 37 0.001 85 4.596 89 0.062 88 0.335 27 0.004 66 1 612 12 1 749 11 1 864 22 D1484-3-04 454 235 1 088 0.22 0.099 08 0.001 85 4.590 86 0.062 81 0.335 76 0.004 67 1 607 12 1 748 11 1 866 23 D1484-3-05 288 99 699 0.14 0.100 07 0.001 87 4.644 09 0.063 78 0.336 25 0.004 69 1 625 12 1 757 11 1 869 23 D1484-3-06 333 142 809 0.18 0.100 50 0.001 88 4.655 49 0.064 35 0.335 59 0.004 70 1 633 12 1 759 12 1 865 23 D1484-3-07 337 154 937 0.16 0.098 53 0.001 83 4.012 22 0.054 99 0.294 97 0.004 12 1 596 12 1 637 11 1 666 21 D1484-3-08 309 137 857 0.16 0.097 44 0.001 81 4.001 19 0.055 00 0.297 40 0.004 16 1 576 12 1 634 11 1 678 21 D1484-3-09 400 209 970 0.22 0.098 37 0.001 83 4.559 39 0.062 51 0.335 67 0.004 70 1 593 12 1 742 11 1 866 23 D1484-3-10 289 143 798 0.18 0.098 76 0.001 84 4.060 91 0.055 78 0.297 77 0.004 17 1 601 12 1 646 11 1 680 21 D1484-3-11 341 209 822 0.25 0.101 52 0.001 88 4.723 89 0.064 90 0.336 89 0.004 73 1 652 12 1 771 12 1 872 23 D1484-3-12 419 134 924 0.15 0.099 66 0.001 85 4.626 85 0.063 84 0.336 10 0.004 73 1 618 12 1 754 12 1 868 23 D1484-3-13 469 250 1 138 0.22 0.110 68 0.002 05 5.117 94 0.070 44 0.334 73 0.004 71 1 811 12 1 839 12 1 861 23 D1484-3-14 463 229 1 015 0.23 0.106 26 0.001 97 4.925 17 0.068 08 0.335 49 0.004 73 1 736 12 1 807 12 1 865 23 D1484-3-15 244 145 599 0.24 0.098 84 0.001 84 4.580 62 0.063 62 0.335 41 0.004 73 1 602 12 1 746 12 1 865 23 D1484-3-16 286 137 708 0.19 0.098 35 0.001 82 4.567 44 0.062 92 0.336 09 0.004 74 1 593 12 1 743 11 1 868 23 D1484-3-17 290 137 722 0.19 0.099 01 0.001 83 4.594 10 0.063 20 0.335 73 0.004 74 1 606 12 1 748 11 1 866 23 D1484-3-18 189 45 452 0.10 0.111 49 0.002 08 5.175 41 0.072 62 0.335 87 0.004 77 1 824 12 1 849 12 1 867 23 D1484-3-19 369 159 1 042 0.15 0.100 52 0.001 85 4.157 92 0.057 21 0.299 26 0.004 23 1 634 12 1 666 11 1 688 21 D1484-3-20 306 108 777 0.14 0.098 03 0.001 81 4.537 68 0.062 96 0.334 84 0.004 75 1 587 12 1 738 12 1 862 23 D1484-3-21 274 153 766 0.20 0.099 00 0.001 85 4.097 96 0.057 70 0.299 40 0.004 26 1 605 12 1 654 11 1 688 21 D1484-3-22 291 131 825 0.16 0.098 95 0.001 82 4.094 41 0.056 45 0.299 27 0.004 24 1 604 12 1 653 11 1 688 21 D1488-1-01 119 31 294 0.10 0.110 40 0.002 11 5.043 49 0.072 70 0.331 18 0.004 67 1 806 12 1 827 12 1 844 23 D1488-1-02 345 252 713 0.35 0.124 17 0.002 30 6.729 32 0.092 04 0.392 90 0.005 50 2 017 11 2 076 12 2 136 25 D1488-1-03 279 356 516 0.69 0.139 89 0.002 59 7.654 60 0.104 98 0.396 73 0.005 57 2 226 11 2 191 12 2 154 26 D1488-1-04 130 130 253 0.51 0.118 92 0.002 21 6.503 16 0.089 78 0.396 48 0.005 58 1 940 11 2 046 12 2 153 26 D1488-1-05 144 97 293 0.33 0.117 02 0.002 17 6.383 91 0.088 39 0.395 57 0.005 59 1 911 12 2 030 12 2 149 26 D1488-1-06 128 22 327 0.07 0.109 68 0.002 09 5.076 18 0.073 76 0.335 58 0.004 79 1 794 12 1 832 12 1 865 23 D1488-1-07 189 149 323 0.46 0.132 89 0.002 47 8.405 51 0.117 13 0.458 67 0.006 53 2 137 11 2 276 13 2 434 29 D1488-1-08 187 183 390 0.47 0.116 70 0.002 18 6.349 04 0.089 27 0.394 50 0.005 63 1 906 12 2 025 12 2 144 26 D1488-1-09 249 209 526 0.40 0.124 91 0.002 34 6.767 69 0.096 15 0.392 89 0.005 63 2 028 12 2 082 13 2 136 26 D1488-1-10 150 188 232 0.81 0.139 08 0.002 59 9.027 74 0.127 10 0.470 73 0.006 75 2 216 11 2 341 13 2 487 30 D1488-1-11 216 211 359 0.59 0.140 82 0.002 62 8.938 35 0.126 63 0.460 30 0.006 64 2 237 11 2 332 13 2 441 29 D1488-1-12 43 29 86 0.34 0.128 99 0.002 44 7.052 78 0.102 78 0.396 53 0.005 76 2 084 12 2 118 13 2 153 27 D1488-1-13 109 26 277 0.09 0.110 70 0.002 07 5.062 84 0.072 71 0.331 66 0.004 81 1 811 12 1 830 12 1 846 23 D1488-1-14 44 45 72 0.62 0.147 93 0.002 81 9.359 56 0.137 52 0.458 84 0.006 71 2 322 12 2 374 13 2 434 30 D1488-1-15 130 88 225 0.39 0.145 64 0.002 72 9.390 48 0.135 19 0.467 60 0.006 82 2 295 11 2 377 13 2 473 30 D1488-1-16 219 62 571 0.11 0.109 72 0.002 06 5.031 40 0.072 86 0.332 56 0.004 87 1 795 12 1 825 12 1 851 24 D1488-1-17 72 74 137 0.54 0.148 73 0.003 77 8.062 57 0.161 92 0.393 17 0.006 06 2 331 44 2 238 18 2 138 28 D1488-1-18 152 155 329 0.47 0.120 13 0.002 25 6.508 72 0.094 84 0.392 92 0.005 79 1 958 12 2 047 13 2 136 27 D1488-1-19 135 174 229 0.76 0.120 01 0.002 27 7.528 50 0.111 58 0.454 91 0.006 74 1 956 12 2 176 13 2 417 30 D1488-1-20 250 103 244 0.42 0.121 36 0.002 28 6.557 58 0.096 23 0.391 85 0.005 81 1 976 12 2 054 13 2 131 27 D1488-1-21 157 129 325 0.40 0.118 75 0.002 23 6.523 36 0.096 32 0.398 36 0.005 93 1 938 12 2 049 13 2 161 27 D1488-1-22 68 47 136 0.35 0.132 08 0.003 27 7.191 95 0.139 95 0.394 92 0.006 06 2 126 44 2 136 17 2 146 28 D15054-01 138 17 342 0.05 0.110 83 0.001 31 5.383 88 0.072 96 0.352 24 0.004 67 1 813 11 1 882 12 1 945 22 D15054-02 175 480 320 1.50 0.118 82 0.001 49 5.772 55 0.081 13 0.352 29 0.004 75 1 939 11 1 942 12 1 946 23 D15054-03 300 879 533 1.65 0.120 58 0.001 42 5.899 63 0.079 55 0.354 81 0.004 71 1 965 11 1 961 12 1 958 22 D15054-04 971 3 268 1 625 2.01 0.119 04 0.001 25 5.832 47 0.073 40 0.355 31 0.004 61 1 942 10 1 951 11 1 960 22 D15054-05 123 29 302 0.10 0.109 79 0.001 25 5.338 36 0.070 69 0.352 61 0.004 64 1 796 11 1 875 11 1 947 22 D15054-06 98 24 244 0.10 0.114 66 0.001 43 5.448 86 0.076 87 0.344 67 0.004 64 1 875 11 1 893 12 1 909 22 D15054-07 85 12 216 0.05 0.106 36 0.001 25 5.133 02 0.069 86 0.350 03 0.004 65 1 738 11 1 842 12 1 935 22 D15054-08 122 22 301 0.07 0.113 08 0.001 52 5.482 56 0.081 68 0.351 67 0.004 83 1 849 12 1 898 13 1 943 23 D15054-09 90 11 223 0.05 0.118 78 0.001 53 5.689 30 0.082 31 0.347 42 0.004 73 1 938 12 1 930 12 1 922 23 D15054-10 219 76 540 0.14 0.125 07 0.001 43 6.031 31 0.080 73 0.349 78 0.004 65 2 030 11 1 980 12 1 934 22 D15054-11 110 16 274 0.06 0.111 41 0.001 37 5.431 85 0.076 40 0.353 66 0.004 76 1 823 11 1 890 12 1 952 23 D15054-12 93 15 240 0.06 0.107 56 0.001 22 5.159 26 0.069 08 0.347 95 0.004 60 1 758 11 1 846 11 1 925 22 D15054-13 438 546 950 0.57 0.112 45 0.002 89 5.253 84 0.114 19 0.338 87 0.004 67 1 839 48 1 861 19 1 881 23 D15054-14 398 1 098 718 1.53 0.123 45 0.001 26 6.000 96 0.075 31 0.352 61 0.004 59 2 007 10 1 976 11 1 947 22 D15054-15 98 15 245 0.06 0.115 76 0.001 36 5.582 82 0.076 64 0.349 85 0.004 68 1 892 11 1 913 12 1 934 22 D15054-16 136 15 347 0.04 0.109 85 0.001 50 5.268 67 0.080 27 0.347 92 0.004 81 1 797 12 1 864 13 1 925 23 D15054-17 87 8 228 0.03 0.109 41 0.001 73 5.241 30 0.089 01 0.347 49 0.005 01 1 790 14 1 859 14 1 923 24 D15054-18 474 1 180 906 1.30 0.124 16 0.001 28 6.048 53 0.077 08 0.353 38 0.004 62 2 017 10 1 983 11 1 951 22 D15054-19 134 22 348 0.06 0.109 23 0.001 38 5.244 81 0.076 11 0.348 31 0.004 74 1 787 12 1 860 12 1 927 23 D15054-20 146 16 373 0.04 0.112 26 0.001 28 5.403 61 0.073 50 0.349 14 0.004 65 1 836 11 1 885 12 1 930 22 D15054-21 182 246 401 0.61 0.123 11 0.003 22 5.864 03 0.128 95 0.345 46 0.004 92 2 002 48 1 956 19 1 913 24 D15054-22 322 931 585 1.59 0.117 89 0.005 01 5.646 27 0.222 08 0.347 37 0.005 62 1 924 78 1 923 34 1 922 27 D15054-23 98 12 254 0.05 0.113 46 0.001 73 5.494 16 0.091 27 0.351 21 0.005 04 1 856 13 1 900 14 1 940 24 D15054-24 624 1 371 1 253 1.09 0.122 46 0.004 12 5.789 72 0.174 00 0.342 89 0.005 20 1 992 61 1 945 26 1 901 25 D15054-25 451 1 189 838 1.42 0.126 30 0.001 39 6.109 95 0.081 78 0.350 84 0.004 67 2 047 11 1 992 12 1 939 22 HLY3-01 11 59 15 3.85 0.116 65 0.005 66 5.534 99 0.305 50 0.344 03 0.005 72 1 906 75 1 906 47 1 906 27 HLY3-02 14 23 31 0.74 0.119 02 0.004 81 5.760 49 0.279 66 0.350 93 0.005 42 1 942 65 1 940 42 1 939 26 HLY3-03 13 54 21 2.59 0.118 59 0.004 83 5.71393 0.278 09 0.349 35 0.005 57 1 935 64 1 933 42 1 931 27 HLY3-04 27 183 30 6.06 0.116 96 0.004 49 5.564 70 0.260 98 0.344 95 0.005 27 1 910 62 1 911 40 1 910 25 HLY3-05 12 35 33 1.07 0.116 81 0.004 56 5.553 50 0.263 17 0.344 70 0.005 23 1 908 63 1 909 41 1 909 25 HLY3-06 37 233 43 5.47 0.118 79 0.004 55 5.711 32 0.267 37 0.348 60 0.005 27 1 938 62 1 933 40 1 928 25 HLY3-07 18 90 26 3.46 0.119 66 0.005 05 5.828 01 0.291 19 0.353 13 0.005 49 1 951 67 1 951 43 1 950 26 HLY3-08 49 178 87 2.05 0.116 94 0.004 12 5.563 53 0.247 52 0.344 96 0.005 00 1 910 59 1 910 38 1 910 24 HLY3-09 61 509 46 11.00 0.117 22 0.004 46 5.584 34 0.260 54 0.345 42 0.005 15 1 914 62 1 914 40 1 913 25 HLY3-10 38 311 30 10.45 0.119 90 0.004 98 5.715 79 0.282 37 0.345 64 0.005 36 1 955 66 1 934 43 1 914 26 HLY3-11 101 914 69 13.27 0.118 80 0.004 35 5.511 57 0.250 59 0.336 39 0.005 00 1 938 60 1 902 39 1 869 24 HLY3-12 11 59 14 4.27 0.117 80 0.007 05 5.651 82 0.368 30 0.347 88 0.006 16 1 923 92 1 924 56 1 924 29 HLY3-13 12 19 28 0.66 0.118 24 0.005 45 5.693 95 0.302 02 0.349 14 0.005 82 1 930 71 1 930 46 1 930 28 HLY3-14 19 108 25 4.38 0.118 92 0.005 42 5.739 60 0.302 55 0.349 94 0.005 65 1 940 71 1 937 46 1 934 27 HLY3-15 13 20 29 0.70 0.117 53 0.005 18 5.619 60 0.288 25 0.346 69 0.005 75 1 919 68 1 919 44 1 919 28 HLY3-16 222 281 478 0.59 0.135 70 0.004 63 7.493 60 0.326 90 0.400 40 0.005 68 2 173 56 2 172 39 2 171 26 HLY3-17 17 85 24 3.51 0.118 37 0.005 51 5.691 99 0.303 96 0.348 66 0.005 80 1 932 72 1 930 46 1 928 28
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表 3 辽吉构造带辽河群火山岩地质年代学数据
Table 3. Geochronological data of volcanic rocks from the Liaohe Group in the Liaoji belt
序号 样品号 岩石类型 年龄 层位 采样地点 分析测试方法 引自 1 SJZ07-5 斜长角闪岩 2 054~2 061 Ma 大石桥组 三家子镇 Zircon(LA-ICP-MS) Xu et al.(2018) 2 16KD55-1-1 斜长角闪岩 2 063±23 Ma 大石桥组 三家子镇 Zircon(LA-ICP-MS) Xu et al.(2018) 3 D2066-11 斜长角闪岩 2 083±13 Ma 大石桥组 河栏镇 Zircon(LA-ICP-MS) Xu et al.(2018) 4 SJZ11-1 斜长角闪岩 2 119±19 Ma 大石桥组 三家子镇 Zircon(LA-ICP-MS) Xu et al.(2018) 5 16XY014 变质流纹岩 2 170 ± 11 Ma 大石桥组 岫岩 Zircon(LA-ICP-MS) Dong et al.(2019) 6 16XY003 变质流纹岩 2 170 ± 29 Ma 大石桥组 岫岩 Zircon(LA-ICP-MS) Dong et al.(2019) 7 14GW580 流纹质角砾凝灰岩 2 171±11 Ma 大石桥组 Zircon(LA-ICP-MS) 陈井胜等(2017a) 8 HLY-3 枕状玄武岩 1 928 Ma 高家峪组 河栏镇 Zircon(LA-ICP-MS) 本文 9 D15054 斜长角闪岩 1 985 Ma 高家峪组 河栏镇 Zircon(LA-ICP-MS) 本文 10 D1423-1 斜长角闪岩 2 079 Ma 高家峪组 Zircon(LA-ICP-MS) 本文 11 TWD15002 流纹岩 2 127±25 Ma 高家峪组 甜水镇 Zircon(LA-ICP-MS) Bi et al.(2018) 12 TWD15026-2 变质流纹岩 2 137 ± 9 Ma 高家峪组 岫岩 Zircon(LA-ICP-MS) Dong et al.(2019) 13 D1488-1 斜长角闪岩 2 145 Ma 高家峪组 Zircon(LA-ICP-MS) 本文 14 TWD15026-1 变质流纹岩 2 166 ± 17 Ma 高家峪组 岫岩 Zircon(LA-ICP-MS) Dong et al.(2019) 15 TWD15001 流纹岩 2 179±20 Ma 高家峪组 甜水镇 Zircon(LA-ICP-MS) Bi et al.(2018) 16 D15015 流纹岩 2 179 Ma 高家峪组 河栏镇 Zircon(LA-ICP-MS) 本文 17 D1442-1 变流纹质含角砾凝灰岩 2 180±12 Ma 高家峪组 辽阳华严寺 Zircon(LA-ICP-MS) 陈井胜等(2017b) 18 TWD15056 流纹岩 2 184±11 Ma 高家峪组 甜水镇 Zircon(LA-ICP-MS) Bi et al.(2018) 19 D14114-1b 流纹岩 1 959±6 Ma 里尔峪组 辽阳华严寺 Zircon(LA-ICP-MS) 陈井胜等(2017b) 20 D14109-2 弱硅化流纹岩 1 969±9 Ma 里尔峪组 连山关 Zircon(LA-ICP-MS) 陈井胜等(2017b) 21 D1002-B1 斜长角闪岩 1 995 ± 13 Ma 里尔峪组 岫岩黄花甸子 Zircon(LA-ICP-MS) 高铂森等(2017) 22 D019 斜长角闪岩 2 024±33 Ma 里尔峪组 40°47′22.5″N, 124°58′14.9″E Zircon(LA-ICP-MS) 陈井胜等(2020) 23 D014 斜长角闪岩 2 053 Ma 里尔峪组 40°39′13″N, 124°55′53″E Zircon(LA-ICP-MS) 陈井胜等(2020) 24 D14112-1 流纹岩 2 100±27 Ma 里尔峪组 连山关 Zircon(LA-ICP-MS) 陈井胜等(2017b) 25 D018 斜长角闪岩 2 130±19 Ma 里尔峪组 40°47′12.8″N, 124°58′43.8″E Zircon(LA-ICP-MS) 陈井胜等(2020) 26 JZ28-2 黑云母细晶岩 2 135 ± 46 Ma 里尔峪组 凤城 Zircon(LA-ICP-MS) 孟恩等(2017) 27 D4034-B1 斜长角闪岩 2 150 ± 21 Ma 里尔峪组 岫岩黄花甸子 Zircon(LA-ICP-MS) 高铂森等(2017) 28 TWD15013 流纹岩 2 153±11 Ma 里尔峪组 辽阳 Zircon(LA-ICP-MS) 毕君辉等(2018) 29 LZ19-1 细粒片麻岩 2 158±22 Ma 里尔峪组 周家镇 Zircon(LA-ICP-MS) 李壮等(2014) 30 DZ40-2 斜长角闪岩 2 159 ± 28 Ma 里尔峪组 凤城 Zircon(LA-ICP-MS) 孟恩等(2017) 31 16SMT03-1 流纹质凝灰岩 2 168±6 Ma 里尔峪组 河栏镇 Zircon(SHRIMP) Xu et al.(2019) 32 D5049-1.5 流纹质凝灰岩 2 170±7 Ma 里尔峪组 河栏镇 Zircon(SHRIMP) Xu et al.(2019) 33 N02 电气石岩 2 171 ± 6 Ma 里尔峪组 大石桥 Zircon(SHRIMP) 张艳飞等(2010) 34 N14 电气石岩 2 171 ± 9 Ma 里尔峪组 大石桥 Zircon(SHRIMP) 张艳飞等(2010) 35 LZ04-1 细粒片麻岩 2 172±8 Ma 里尔峪组 周家镇 Zircon(LA-ICP-MS) 李壮等（2014） 36 D2092-1.2 流纹质凝灰岩 2 174±8 Ma 里尔峪组 河栏镇 Zircon(SHRIMP) Xu et al.(2019) 37 16SMT02-1 流纹质凝灰岩 2 174±8 Ma 里尔峪组 河栏镇 Zircon(SHRIMP) Xu et al.(2019) 38 N13 电气石岩 2 175 ± 5 Ma 里尔峪组 大石桥 Zircon(SHRIMP) 张艳飞等(2010) 39 JL29-1 黑云母斜长片麻岩 2 176 ± 22 Ma 里尔峪组 凤城 Zircon(LA-ICP-MS) Meng et al. (2017) 40 LD0106-1 细粒黑云母片麻岩 2 179 ± 8 Ma 里尔峪组 大石桥 Zircon(SHRIMP) Wan et al. (2006) 41 DHL-N2 含电气石长英质片麻岩 2 181 ± 2 Ma 里尔峪组 40°34′37″N, 123°24′00″E Zircon(LA-ICP-MS) Liu et al. (2018) 42 HX35 变安山岩 2 182 ± 6 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) 陈斌等(2016) 43 14GW585 流纹岩 2 185±16 Ma 里尔峪组 辽阳华严寺 Zircon(LA-ICP-MS) 陈井胜等(2017b) 44 D1444-2 流纹岩 2 191±46 Ma 里尔峪组 辽阳华严寺 Zircon(LA-ICP-MS) 陈井胜等(2017b) 45 HX-35 变安山岩 2 195 ± 6 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) Li et al. (2018) 46 HX-33 变安山岩 2 199 ± 6 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) Li et al. (2018) 47 LZ3 变质流纹岩 2 201±5 Ma 里尔峪组 建一镇 Zircon(LA-ICP-MS) 李壮等（2015） 48 LZ02-1 细粒片麻岩 2 204±11 Ma 里尔峪组 周家镇 Zircon(LA-ICP-MS) 李壮等（2014） 49 HX-38 变流纹岩 2 205 ± 2 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) Li et al. (2018) 50 HX-37 变流纹岩 2 206 ± 1 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) Li et al. (2018) 51 JL40-2 黑云母细晶岩 2 209 ± 21 Ma 里尔峪组 凤城 Zircon(LA-ICP-MS) Meng et al. (2017) 52 HX33 变安山岩 2 229 ± 22 Ma 里尔峪组 40°21′25″N, 122°55′27″E Zircon(LA-ICP-MS) 陈斌等(2016) 53 D021 斜长角闪岩 1 952 ± 38 Ma 浪子山组 朱家沟 Zircon(LA-ICP-MS) 陈井胜等(2018) 54 02L098-1 含石墨云母片岩 2 078 ± 43 Ma 浪子山组 40°45′28″N, 122°44′33″E Zircon(LA-ICP-MS) Luo et al. (2004)
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