南秦岭镇安西部钨钼矿集区成矿物质来源研究
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韩珂,杨兴科
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Study on the Ore-forming Materials Source of the Western Zhen’an W-Mo Ore Concentration Area in Southern Qinling Moutains
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Ke HAN,Xingke YANG
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表3 懒板凳九间屋单元、王家坪隐伏岩体和花岗细晶岩脉锆石U-Pb同位素测年数据
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Table 3 Zircon U-Pb isotopic dating data of Jiujianwu unit,Wangjiaping concealed rock mass and granitic fine-grained dike
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点号 | Z1(中—粗粒黑云母二长花岗岩)测年数据 |
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Th(×10-6) | U/(×10-6) | Th/U比值 | 207Pb/235U比值 | 1σ | 206Pb/238U比值 | 1σ | 207Pb/235U年龄/Ma | 1σ | 206Pb/238U年龄/Ma | 1σ |
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1 | 1 720 | 3 783 | 0.45 | 0.25235 | 0.00498 | 0.03477 | 0.00043 | 228 | 4 | 220 | 3 | 2 | 1 774 | 2 475 | 0.68 | 0.23846 | 0.00523 | 0.03481 | 0.00052 | 217 | 4 | 221 | 3 | 3 | 2 714 | 4 417 | 0.60 | 0.24875 | 0.00520 | 0.03474 | 0.00052 | 226 | 4 | 220 | 3 | 4 | 1 605 | 2 618 | 0.61 | 0.24982 | 0.00635 | 0.03599 | 0.00042 | 226 | 5 | 228 | 3 | 5 | 1 375 | 3 382 | 0.41 | 0.24684 | 0.00584 | 0.03561 | 0.00049 | 224 | 5 | 226 | 3 | 6 | 1 299 | 2 121 | 0.60 | 0.24199 | 0.00663 | 0.03441 | 0.00048 | 220 | 5 | 218 | 3 | 7 | 2 063 | 3 149 | 0.65 | 0.25070 | 0.00576 | 0.03471 | 0.00046 | 227 | 5 | 220 | 3 | 8 | 1 108 | 2 314 | 0.47 | 0.24205 | 0.00621 | 0.03558 | 0.00055 | 220 | 5 | 225 | 3 | 9 | 2 072 | 2 694 | 0.77 | 0.24492 | 0.00633 | 0.03558 | 0.00057 | 222 | 5 | 225 | 4 | 10 | 1 556 | 2 425 | 0.63 | 0.23049 | 0.00612 | 0.03453 | 0.00060 | 211 | 5 | 219 | 4 | 11 | 2 141 | 3 244 | 0.65 | 0.24627 | 0.00588 | 0.03478 | 0.00083 | 224 | 5 | 220 | 5 | 12 | 1 853 | 2 856 | 0.63 | 0.25315 | 0.00554 | 0.03591 | 0.00050 | 229 | 4 | 227 | 3 | 点号 | Z2(中—细粒黑云母二长花岗岩)测年数据 | Th(×10-6) | U/(×10-6) | Th/U比值 | 207Pb/235U比值 | 1σ | 206Pb/238U比值 | 1σ | 207Pb/235U年龄/Ma | 1σ | 206Pb/238U年龄/Ma | 1σ | 1 | 694 | 1 278 | 0.52 | 0.21804 | 0.00760 | 0.03105 | 0.00071 | 200 | 6 | 197 | 4 | 2 | 425 | 1 573 | 0.25 | 0.23276 | 0.00819 | 0.03162 | 0.00069 | 212 | 7 | 201 | 4 | 3 | 705 | 3 640 | 0.20 | 0.23565 | 0.00701 | 0.03154 | 0.00088 | 215 | 6 | 200 | 6 | 4 | 315 | 1 549 | 0.18 | 0.24568 | 0.00897 | 0.03254 | 0.00062 | 223 | 7 | 206 | 4 | 5 | 592 | 941 | 0.54 | 0.22770 | 0.00986 | 0.03090 | 0.00122 | 208 | 8 | 196 | 8 | 6 | 496 | 1 045 | 0.42 | 0.23221 | 0.01150 | 0.03216 | 0.00064 | 212 | 9 | 204 | 4 | 7 | 215 | 520 | 0.35 | 0.23758 | 0.01362 | 0.03192 | 0.00067 | 216 | 11 | 203 | 4 | 8 | 359 | 597 | 0.42 | 0.20768 | 0.01738 | 0.03199 | 0.00229 | 192 | 15 | 203 | 14 | 9 | 452 | 1 139 | 0.35 | 0.22563 | 0.01047 | 0.03192 | 0.00066 | 207 | 9 | 203 | 4 | 10 | 794 | 1 301 | 0.58 | 0.24399 | 0.01189 | 0.03171 | 0.00062 | 222 | 10 | 201 | 4 | 11 | 543 | 1 512 | 0.34 | 0.25067 | 0.01051 | 0.03252 | 0.00064 | 227 | 9 | 206 | 4 | 12 | 638 | 1 623 | 0.40 | 0.22369 | 0.01144 | 0.03135 | 0.00184 | 205 | 9 | 199 | 12 | 13 | 1 483 | 6 752 | 0.24 | 0.23949 | 0.01025 | 0.03223 | 0.00098 | 218 | 8 | 205 | 6 | 14 | 419 | 942 | 0.58 | 0.20394 | 0.03065 | 0.03182 | 0.00198 | 188 | 26 | 202 | 12 | 点号 | Z3(花岗细晶岩脉)测年数据 | Th(×10-6) | U/(×10-6) | Th/U比值 | 207Pb/235U比值 | 1σ | 206Pb/238U比值 | 1σ | 207Pb/235U年龄/Ma | 1σ | 206Pb/238U年龄/Ma | 1σ | 1 | 1 365 | 10 504 | 0.13 | 0.25359 | 0.00974 | 0.03310 | 0.00059 | 229 | 8 | 210 | 4 | 2 | 9 035 | 11 943 | 0.76 | 0.22689 | 0.00949 | 0.03075 | 0.00102 | 208 | 8 | 195 | 6 | 3 | 1 085 | 8 212 | 0.13 | 0.23307 | 0.00711 | 0.03076 | 0.00047 | 213 | 6 | 195 | 3 | 4 | 637 | 8 391 | 0.08 | 0.23534 | 0.00720 | 0.03456 | 0.00050 | 215 | 6 | 219 | 3 | 5 | 554 | 5 910 | 0.09 | 0.24645 | 0.00742 | 0.03382 | 0.00059 | 224 | 6 | 214 | 4 | 6 | 1 383 | 7 610 | 0.18 | 0.23876 | 0.00850 | 0.03287 | 0.00055 | 217 | 7 | 209 | 3 | 7 | 532 | 7 851 | 0.07 | 0.22777 | 0.00808 | 0.03392 | 0.00054 | 208 | 7 | 215 | 3 | 8 | 2 157 | 6 472 | 0.33 | 0.21920 | 0.00761 | 0.03174 | 0.00067 | 201 | 6 | 201 | 4 | 9 | 1 733 | 10 962 | 0.16 | 0.25186 | 0.00936 | 0.03357 | 0.00064 | 228 | 8 | 213 | 4 | 10 | 3 697 | 7 235 | 0.51 | 0.24547 | 0.00839 | 0.03291 | 0.00053 | 223 | 7 | 209 | 3 | 11 | 1 848 | 10 459 | 0.18 | 0.24841 | 0.00729 | 0.03318 | 0.00051 | 225 | 6 | 210 | 3 | 12 | 678 | 6 746 | 0.10 | 0.23998 | 0.00906 | 0.03362 | 0.00072 | 218 | 7 | 213 | 5 | 13 | 2 461 | 9 045 | 0.27 | 0.21487 | 0.00727 | 0.03110 | 0.00061 | 198 | 6 | 197 | 4 | 14 | 1 104 | 6 366 | 0.17 | 0.25112 | 0.00854 | 0.03355 | 0.00060 | 227 | 7 | 213 | 4 |
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