胶东地区早白垩世周官高镁闪长岩体年代学、地球化学特征及其构造意义
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王斌,宋明春,刘志宁,李健,董磊磊,张艺多,蒋雷,王润生,董小涛,刘家良
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Geochronology,Geochemical Characteristics and Tectonic Implications of Early Cretaceous Zhouguan High-Mg Diorite Rock Mass in the Jiaodong Peninsula
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Bin WANG,Mingchun SONG,Zhining LIU,Jian LI,Leilei DONG,Yiduo ZHANG,Lei JIANG,Runsheng WANG,Xiaotao DONG,Jialiang LIU
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表1 周官岩体锆石U-Pb同位素分析结果
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Table 1 Zircon U-Pb isotopic analysis results of Zhouguan rock mass
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分析点 | Th/U | LA-ICP-MS U-Pb同位素比值 | LA-ICP-MS U-Pb同位素年龄/Ma |
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207Pb/235U | 1s% | 206Pb/238U | 1s% | Rho | 206Pb/238U | 2s (abs) | 207Pb/235U | 2s (abs) |
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ZGYT01.1 | 1.0 | 0.1254 | 6.9 | 0.01816 | 1.8 | 0.22 | 116 | 4 | 119 | 15 | ZGYT01.2 | 1.1 | 0.1136 | 7.4 | 0.01846 | 1.6 | 0.02 | 118 | 4 | 108 | 15 | ZGYT01.3 | 1.2 | 0.1344 | 5.1 | 0.01898 | 1.6 | -0.11 | 121 | 4 | 127 | 12 | ZGYT01.4 | 1.0 | 0.1198 | 6.8 | 0.01858 | 1.7 | -0.13 | 119 | 4 | 114 | 15 | ZGYT01.5 | 1.1 | 0.1336 | 4.1 | 0.01903 | 1.8 | 0.26 | 122 | 4 | 127 | 10 | ZGYT01.6 | 1.0 | 0.1256 | 8.2 | 0.01910 | 1.9 | 0.00 | 122 | 5 | 118 | 18 | ZGYT01.7 | 1.4 | 0.1324 | 7.9 | 0.01856 | 3.5 | 0.12 | 118 | 8 | 125 | 19 | ZGYT01.8 | 1.1 | 0.1205 | 6.0 | 0.01830 | 1.9 | 0.22 | 117 | 4 | 115 | 13 | ZGYT01.9 | 1.1 | 0.1238 | 6.8 | 0.01870 | 1.5 | -0.14 | 119 | 4 | 117 | 15 | ZGYT01.10 | 1.1 | 0.1140 | 7.4 | 0.01895 | 1.7 | 0.20 | 121 | 4 | 108 | 15 | ZGYT01.11 | 1.0 | 0.1150 | 5.8 | 0.01854 | 2.3 | -0.02 | 118 | 5 | 110 | 12 | ZGYT01.12 | 1.3 | 0.1238 | 6.7 | 0.01838 | 1.5 | 0.04 | 118 | 4 | 117 | 15 | ZGYT01.13 | 1.3 | 0.1284 | 5.8 | 0.01860 | 1.6 | 0.02 | 119 | 4 | 122 | 13 | ZGYT01.14 | 1.0 | 0.1298 | 7.7 | 0.01943 | 2.0 | 0.00 | 124 | 5 | 122 | 18 | ZGYT01.15 | 1.1 | 0.1206 | 6.2 | 0.01896 | 1.7 | 0.01 | 121 | 4 | 115 | 13 | ZGYT02.1 | 1.1 | 0.1163 | 8.9 | 0.01844 | 2.3 | 0.28 | 118 | 5 | 110 | 18 | ZGYT02.2 | 1.1 | 0.1254 | 6.1 | 0.01920 | 2.2 | -0.02 | 123 | 5 | 119 | 14 | ZGYT02.3 | 1.1 | 0.1187 | 7.4 | 0.01832 | 1.6 | 0.14 | 117 | 4 | 112 | 16 | ZGYT02.4 | 1.0 | 0.1173 | 7.6 | 0.01855 | 1.6 | -0.05 | 118 | 4 | 111 | 16 | ZGYT02.5 | 1.1 | 0.1302 | 5.9 | 0.01862 | 1.5 | -0.34 | 119 | 4 | 123 | 14 | ZGYT02.6 | 1.1 | 0.1321 | 6.8 | 0.01876 | 1.3 | 0.29 | 120 | 3 | 125 | 16 | ZGYT02.7 | 1.0 | 0.1239 | 5.5 | 0.01814 | 1.6 | 0.06 | 116 | 4 | 118 | 12 | ZGYT02.8 | 1.0 | 0.1191 | 8.8 | 0.01933 | 3.0 | -0.10 | 123 | 7 | 113 | 19 | ZGYT02.9 | 1.1 | 0.1307 | 5.5 | 0.01827 | 1.4 | -0.30 | 117 | 3 | 124 | 13 | ZGYT02.10 | 1.7 | 0.1198 | 5.4 | 0.01841 | 1.4 | -0.29 | 118 | 3 | 114 | 12 | ZGYT02.11 | 1.1 | 0.1198 | 6.6 | 0.01873 | 1.5 | 0.01 | 120 | 4 | 114 | 14 | ZGYT02.12 | 1.1 | 0.1354 | 6.1 | 0.01889 | 2.0 | -0.11 | 121 | 5 | 128 | 15 | ZGYT02.13 | 1.0 | 0.1329 | 10.7 | 0.01816 | 3.0 | -0.26 | 116 | 7 | 125 | 25 | ZGYT02.14 | 1.1 | 0.1350 | 5.7 | 0.01844 | 1.7 | -0.06 | 118 | 4 | 127 | 14 | ZGYT02.15 | 1.1 | 0.1226 | 7.2 | 0.01821 | 2.1 | 0.12 | 116 | 5 | 116 | 16 |
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