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物探与化探  2019, Vol. 43 Issue (5): 1003-1014    DOI: 10.11720/wtyht.2019.1463
  地质调查·资源勘查 本期目录 | 过刊浏览 | 高级检索 |
赣西北九岭中北部晚侏罗世S型花岗岩成矿专属性分析
廖圣兵, 褚平利, 段政, 黄文成, 朱延辉, 舒徐洁
中国地质调查局 南京地质调查中心,江苏 南京 210016
Metallogenic specialization of late Jurassic S-type granites in middle-northern Jiuling Mountain in northwestern Jiangxi
Sheng-Bing LIAO, Ping-Li CHU, Zheng DUAN, Wen-Cheng HUANG, Yan-Hui ZHU, Xu-Jie SHU
Nanjing Institute of Geology and Mineral Resources, China Geological Survey, Nanjing 210016, China
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摘要 

对赣西北石门楼地区黑云母二长花岗(斑)岩进行了锆石U-Pb年代学、岩石地球化学、锆石和黑云母矿物地球化学研究。黑云母二长花岗(斑)岩LA-ICP-MS锆石U-Pb加权平均年龄145.6~148.4 Ma,属晚侏罗世晚期。岩石属普通低分异S型花岗岩,为中等还原(Fe2O3/FeO=0.18~0.19,Ce 4+/Ce 3+=14~158,lg( f O 2 )D=-22.4~-6.9,平均-13.8(>IW-3.6))、强演化(K/Rb=153~206)、低分异(Rb/Sr=1.6~4.2)、较低温(T锆石Ti=619~881 ℃,平均750 ℃)岩浆。岩浆来源为上地壳富砂屑源区,由起源于古中元古代地壳物质(双桥山群)的新元古代花岗岩类源岩重熔再造作用形成。该类岩体具形成钨矿床的成矿物质、时代及空间专属性和成矿可能性。

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关键词 S型花岗岩锆石U-Pb同位素测年岩浆氧逸度成矿专属性赣西北    
Abstract

The zircon U-Pb geochronology, petrogeochemistry, zircon and biotite mineral geochemistry of biotite monzogranite (-porphyry) in Shimenlou area of northwestern Jiangxi province have been studied. The LA-ICP-MS zircon U-Pb 206Pb/ 238U weighted average ages of zircons from the biotite monzogranite (-porphyry) are in the range of 145.6~148.4 Ma, suggesting late Late Jurassic. The rock is common low fractionation S-type granite. The magma properties are moderately reductive (the ratio of Fe2O3/FeO = 0.18~0.19, the ratio of Ce 4+/Ce 3+ =14~158, log10(fO2)D=-22.4~-6.9, averaging -13.8 (> IW-3.6)), strong evolution (the ratio of K/Rb =153~206), low fractionation (the ratio of Rb/Sr =1.6~4.2) and low temperature (T(zircon)Ti = 619~881℃, averaging 750℃). The magma was derived from the magma source enriched area of the upper crust, which was formed by remelting and regenerating of the Neoproterozoic granitoids derived from the early Mesoproterozoic crustal material (Shuangqiao Mountain Group). The rock has the metallogenic material, time and spatial specialization and metallogenic possibility of forming tungsten deposit.

Key wordsS-type granites    zircon U-Pb isotope dating    magmatic oxygen fugacity    metallogenic specialization    northwestern Jiangxi Province
收稿日期: 2018-12-28      出版日期: 2019-10-25
:  P632  
基金资助:中国地质调查局项目“江南—华夏古陆区域地质矿产调查”(12120113064800)
作者简介: 廖圣兵(1979-),男,高级工程师,长期从事区域地质调查工作。
引用本文:   
廖圣兵, 褚平利, 段政, 黄文成, 朱延辉, 舒徐洁. 赣西北九岭中北部晚侏罗世S型花岗岩成矿专属性分析[J]. 物探与化探, 2019, 43(5): 1003-1014.
Sheng-Bing LIAO, Ping-Li CHU, Zheng DUAN, Wen-Cheng HUANG, Yan-Hui ZHU, Xu-Jie SHU. Metallogenic specialization of late Jurassic S-type granites in middle-northern Jiuling Mountain in northwestern Jiangxi. Geophysical and Geochemical Exploration, 2019, 43(5): 1003-1014.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2019.1463      或      https://www.wutanyuhuatan.com/CN/Y2019/V43/I5/1003
Fig.1  研究区大地构造位置(a)和地质简图(b)
分析
点号
元素含量/10-6 Th/U 同位素比值 同位素年龄/Ma
Th U 207Pb/206Pb 207Pb/235U 206Pb/238U 207Pb/235U 206Pb/238U 208Pb/232Th
南部中细粒黑云二长花岗岩(样品TW5787-1-5)
1* 129 883 0.15 0.0594 0.0014 0.5491 0.0167 0.0664 0.0013 444 11 414 8 323 16
2 101 1687 0.06 0.0465 0.0019 0.1481 0.0060 0.0229 0.0004 140 5 146 2 119 14
3 653 2712 0.24 0.0483 0.0011 0.1538 0.0037 0.0228 0.0002 145 3 145 2 181 7
4 698 2041 0.34 0.0520 0.0012 0.1660 0.0040 0.0228 0.0003 156 4 146 2 148 5
5* 66 173 0.38 0.0639 0.0022 1.2019 0.0402 0.1358 0.0024 801 19 821 14 834 35
6* 335 303 1.10 0.0500 0.0036 0.1832 0.0114 0.0275 0.0007 171 10 175 5 165 10
7 367 714 0.51 0.0492 0.0020 0.1570 0.0063 0.0229 0.0004 148 6 146 3 131 7
8 507 2186 0.23 0.0486 0.0014 0.1570 0.0047 0.0229 0.0003 148 4 146 2 145 6
9 378 1288 0.29 0.0501 0.0018 0.1601 0.0063 0.0229 0.0006 151 6 146 4 147 7
10* 72 405 0.18 0.0636 0.0016 1.1045 0.0269 0.1240 0.0015 756 13 754 9 808 35
11* 56 370 0.15 0.0639 0.0029 1.0888 0.0465 0.1223 0.0019 748 23 744 11 786 48
12* 67 944 0.07 0.0667 0.0016 1.2760 0.0452 0.1361 0.0034 835 20 823 19 776 50
13 227 1435 0.16 0.0470 0.0019 0.1464 0.0051 0.0228 0.0003 139 5 145 2 152 6
14 1181 3106 0.38 0.0492 0.0015 0.1555 0.0052 0.0227 0.0004 147 5 145 2 148 5
15 652 3257 0.20 0.0488 0.0013 0.1552 0.0052 0.0229 0.0005 146 5 146 3 134 5
东部中粒黑云母二长花岗斑岩(样品TW6328-2-6)
1 1182 825 1.43 0.0563 0.0027 0.1818 0.0101 0.0231 0.0006 170 9 147 4 157 6
2* 119 366 0.33 0.0631 0.0015 1.1994 0.0280 0.1360 0.0015 800 13 822 9 858 29
3 470 1457 0.32 0.0517 0.0015 0.1689 0.0048 0.0235 0.0003 158 4 150 2 180 7
4* 73 417 0.17 0.0650 0.0016 1.1186 0.0292 0.1239 0.0018 762 14 753 11 854 31
5* 228 461 0.49 0.0642 0.0015 1.2129 0.0287 0.1360 0.0016 807 13 822 9 906 31
6* 75 406 0.19 0.0650 0.0017 1.1213 0.0312 0.1241 0.0018 764 15 754 10 788 31
7☆ 418 882 0.47 0.0820 0.0062 0.2752 0.0294 0.0230 0.0009 247 24 147 6 217 19
8 6037 3342 1.81 0.0563 0.0016 0.1789 0.0051 0.0231 0.0005 167 4 147 3 136 7
9* 223 689 0.32 0.0617 0.0014 0.6553 0.0201 0.0760 0.0016 512 12 472 10 546 19
10 321 692 0.46 0.0496 0.0037 0.1559 0.0108 0.0230 0.0006 147 10 147 4 147 8
11* 38 380 0.10 0.0641 0.0018 1.2072 0.0316 0.1359 0.0020 804 15 821 12 1126 68
12 355 402 0.88 0.0484 0.0027 0.1548 0.0090 0.0230 0.0006 146 8 147 4 164 10
13☆ 927 434 2.14 0.0755 0.0043 0.2457 0.0141 0.0235 0.0006 223 12 150 4 129 6
14* 70 761 0.09 0.0648 0.0013 1.2337 0.0273 0.1362 0.0016 816 12 823 9 780 29
15 66 255 0.26 0.0546 0.0052 0.1701 0.0137 0.0232 0.0009 159 12 148 6 185 24
东部中细粒黑云母二长花岗岩(样品TW6331-1-5)
1 1001 1183 0.85 0.0569 0.0100 0.1747 0.0249 0.0225 0.0010 163 22 144 6 85.7 6
2 418 916 0.46 0.0524 0.0025 0.1677 0.0075 0.0230 0.0005 157 7 147 3 145 8
3☆ 624 421 1.48 0.0783 0.0066 0.2803 0.0227 0.0260 0.0007 251 18 166 4 175 9
4* 42 359 0.12 0.0672 0.0026 1.2518 0.0457 0.1338 0.0018 824 21 809 10 806 59
5 623 1629 0.38 0.0484 0.0028 0.1529 0.0080 0.0227 0.0004 144 7 145 3 139 7
6* 38 332 0.11 0.0673 0.0017 1.2872 0.0353 0.1365 0.0019 840 16 825 11 836 42
7 453 1665 0.27 0.0546 0.0024 0.1752 0.0075 0.0229 0.0003 164 7 146 2 176 11
8☆ 1095 6438 0.17 0.1291 0.0042 0.4139 0.0181 0.0224 0.0004 352 13 143 2 716 29
9* 56 194 0.29 0.0674 0.0040 1.2900 0.0914 0.1350 0.0030 841 41 816 17 1106 99
10* 66 639 0.10 0.0671 0.0015 1.2812 0.0303 0.1361 0.0019 837 14 823 11 875 35
11 384 400 0.96 0.0493 0.0023 0.1563 0.0073 0.0228 0.0004 147 6 145 2 158 6
12* 199 628 0.32 0.0655 0.0018 1.2375 0.0319 0.1349 0.0016 818 15 816 9 836 25
13 629 931 0.68 0.0598 0.0028 0.1898 0.0073 0.0229 0.0005 176 6 146 3 167 8
14 615 827 0.74 0.0514 0.0022 0.1623 0.0062 0.0228 0.0004 153 5 146 2 148 6
15* 176 731 0.24 0.0496 0.0020 0.1991 0.0080 0.0287 0.0005 184 7 182 3 195 12
Table 1  研究区晚侏罗世黑云母二长花岗岩LA-ICP-MS锆石U-Pb分析数据
Fig.2  黑云母二长花岗岩锆石U-Pb年龄谐和图及加权平均年龄示意
分析
点号
Ti La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Y
南部中细粒黑云二长花岗岩(样品TW5787-1-5)
1* 6.37 0.02 2.46 0.03 0.68 3.25 0.19 27.2 11.9 153 56 261 55 593 101 1916
2 14.06 0.54 5.19 0.30 2.01 1.47 0.26 11.1 4.3 72 31 161 39 471 83 1068
3 0 0.13 16.24 0.09 1.19 3.65 0.44 23.5 9.1 119 45 212 45 493 82 1500
4 8.65 2.52 19.59 1.07 7.55 9.13 1.57 45.5 15.3 182 64 294 60 643 105 2172
5* 9.81 0 0.99 0.04 0.93 3.18 0.17 20.9 8.1 113 46 226 47 522 93 1488
6* 6.08 1.56 16.00 0.76 7.99 10.12 2.63 44.9 13.1 144 49 218 43 447 75 1621
7 8.41 1.37 22.26 0.72 5.30 6.96 1.49 36.3 12.3 155 56 259 52 556 91 1894
8 2.20 1.51 16.15 0.76 4.77 5.10 0.64 30.0 10.6 133 47 216 45 473 76 1579
9 35.72 0.49 14.50 0.36 3.12 5.53 0.82 29.3 10.3 130 46 213 45 489 76 1561
10* 140.30 0.32 2.79 0.16 1.80 4.24 0.43 28.1 11.7 161 64 306 63 689 116 2137
11* 7.63 0.13 0.70 0.10 1.09 3.09 0.09 24.7 10.7 151 57 270 56 595 102 1922
12* 8.22 0.14 2.73 0.10 0.82 2.08 0.19 19.5 9.7 150 61 321 76 921 165 2080
13 8.78 0.11 10.48 0.17 1.69 3.59 0.53 21.7 8.4 111 42 205 44 500 82 1434
14 11.70 1.56 25.50 1.08 8.61 12.02 1.77 65.3 21.6 248 85 385 77 802 126 2923
15 3.87 0.60 24.57 0.60 4.23 6.21 1.14 35.1 13.5 177 66 311 66 720 115 2230
东部中粒黑云母二长花岗斑岩(样品TW6328-2-6)
1 11.25 3.42 58.74 3.02 29.12 29.07 6.92 99.0 26.6 283 91 402 80 874 139 3225
2* 3.92 0.02 2.85 0.07 1.96 5.19 0.31 41.0 16.9 237 94 464 94 1018 172 3266
3 9.50 7.86 41.55 3.23 17.78 7.99 1.88 24.9 7.6 92 33 158 33 369 61 1171
4* 35.70 0.73 3.15 0.47 3.26 5.10 0.12 42.9 19.5 280 105 487 92 961 149 3881
5* 0 0.15 1.89 0.32 5.49 14.04 0.28 101.1 39.1 524 198 906 174 1774 277 7170
6* 13.35 0.06 0.59 0.08 1.17 4.46 0.07 36.5 15.2 205 77 358 73 793 127 2667
7 8.53 18.09 34.24 3.33 17.58 9.17 1.99 31.8 10.0 111 39 181 36 403 65 1353
8 29.49 8.37 126.28 4.78 29.19 22.44 3.63 86.2 26.4 297 100 427 80 811 123 3492
9* 6.43 0.18 5.54 0.20 2.47 5.15 0.37 35.6 13.9 187 72 348 70 765 126 2524
10 9.82 0.08 23.27 0.34 4.98 10.86 4.39 49.5 15.4 153 41 151 25 244 32 1472
11* 2.61 0.32 1.41 0.11 0.81 1.77 0.12 17.9 8.3 122 47 240 53 635 111 1699
12 7.84 6.51 47.09 1.61 10.10 6.44 1.55 27.6 8.5 106 39 180 36 394 66 1351
13 7.66 11.00 62.06 4.14 26.77 22.00 2.94 60.1 15.0 143 43 174 31 311 48 1426
14* 6.69 0.06 0.72 0.02 0.73 3.41 0.05 34.5 18.7 264 87 346 60 581 86 3479
15 9.02 0.02 2.69 0.02 0.65 1.63 0.32 6.1 1.5 13 4 12 3 29 4 121
东部中细粒黑云母二长花岗岩(样品TW6331-1-5)
1 16.80 8.28 73.48 5.25 34.10 16.70 5.13 51.9 13.3 151 52 230 46 475 75 1801
2 2.13 2.44 20.03 1.44 9.52 8.68 1.10 36.6 11.6 136 50 224 46 489 76 1625
3 10.39 57.36 180.78 23.79 119.54 37.68 3.57 67.1 14.4 131 39 154 28 276 45 1251
4* 4.97 0.02 0.69 0.03 0.61 2.43 0.13 23.5 10.8 154 60 289 61 651 114 2050
5 10.06 0.08 35.23 0.36 4.61 9.59 1.99 41.3 14.0 166 57 250 52 564 89 1927
6* 2.58 0.01 0.34 0.03 0.67 3.07 0.08 25.2 11.3 154 57 266 56 597 100 1959
7 12.08 3.47 25.28 1.57 9.26 7.99 1.10 36.5 12.4 145 53 247 50 528 88 1822
8 119.18 7.91 56.09 6.35 37.19 22.75 4.72 62.7 22.0 270 92 434 93 1020 158 3169
9* 7.94 0.05 1.16 0.02 1.32 5.38 0.12 32.5 11.3 156 61 284 58 616 106 1994
10* 8.49 0.02 0.60 0.04 0.74 3.52 0.14 32.5 16.0 237 95 480 105 1150 195 3314
11 11.65 0.14 25.17 0.42 6.38 10.00 2.57 43.4 12.2 136 44 195 37 389 63 1478
12* 0 0.15 3.08 0.10 1.41 6.72 0.24 46.6 20.3 293 114 544 107 1086 182 3925
13 23.29 0.37 23.38 0.44 4.28 7.75 1.39 34.4 10.9 125 43 195 38 390 64 1446
14 12.17 0.22 26.61 0.44 7.05 12.11 2.64 55.3 16.7 192 66 291 57 584 93 2166
15* 2.16 0.01 4.07 0.03 0.53 1.52 0.23 8.8 3.4 41 14 64 14 150 24 484
点号 谐和度 206Pb/238U Ce4+/Ce3+ (Ce/Ce*)N (Ce/Ce*)D (Eu/Eu*)N T/℃ lg(fO2)D ΔFMQD ΔIWD
南部中细粒黑云二长花岗岩(样品TW5787-1-5)
1* 93% 414 44 27 60 0.06 705 -14.8 1.9 6.2
2 96% 146 66 3 89 0.20 779 -9.6 5.3 9.4
3 99% 145 158 37 209 0.15
4 93% 146 22 3 29 0.24 732 -16.1 -0.1 4.1
5* 97% 821 14 19 0.07 744 -17.1 -1.3 2.9
6* 97% 175 12 4 16 0.38 701 -20.0 -3.2 1.1
7 98% 146 39 5 51 0.29 730 -14.1 1.9 6.1
8 98% 146 34 4 45 0.16 621 -20.9 -1.9 2.6
9 96% 146 43 8 57 0.20 881 -6.9 6.0 9.9
10* 99% 754 21 3 28 0.12 1074 -3.1 6.8 10.4
11* 99% 744 8 2 12 0.03 721 -19.9 -3.6 0.6
12* 98% 823 83 6 115 0.09 728 -11.2 5.0 9.2
13 95% 145 78 19 103 0.18 734 -11.3 4.7 8.9
14 98% 145 23 5 30 0.19 761 -14.6 0.8 4.9
15 99% 146 68 10 89 0.24 664 -15.7 2.1 6.5
东部中粒黑云母二长花岗斑岩(样品TW6328-2-6)
1 86% 147 14 4 19 0.40 757 -16.4 -1.0 3.1
2* 97% 822 29 19 41 0.06 665 -18.5 -0.7 3.6
3 94% 150 28 2 36 0.41 741 -14.9 0.9 5.1
4* 98% 753 19 1 27 0.02 881 -9.7 3.1 7.0
5* 98% 822 4 7 0.02
6* 98% 754 8 2 12 0.02 774 -17.3 -2.3 1.8
7 49% 147 20 1 27 0.36 731 -16.5 -0.4 3.8
8 87% 147 37 5 47 0.25 859 -8.5 4.8 8.7
9* 91% 472 40 7 55 0.08 706 -15.1 1.5 5.8
10 99% 147 21 34 27 0.58 744 -15.8 0.0 4.1
11* 97% 821 51 2 73 0.07 634 -18.3 0.3 4.8
12 99% 147 60 4 78 0.36 723 -12.9 3.3 7.6
13 60% 150 10 2 13 0.25 721 -19.6 -3.3 0.9
14* 99% 823 14 5 20 0.01 709 -18.7 -2.1 2.2
15 92% 148 15 31 20 0.30 736 -17.4 -1.5 2.7
东部中细粒黑云母二长花岗岩(样品TW6331-1-5)
1 87% 144 18 3 23 0.53 797 -13.8 0.7 4.8
2 93% 147 24 3 32 0.19 619 -22.4 -3.2 1.3
3 59% 166 5 1 7 0.22 749 -20.5 -4.9 -0.7
4* 98% 809 26 7 38 0.05 684 -17.7 -0.5 3.8
5 99% 145 81 51 107 0.31 746 -10.5 5.2 9.3
6* 98% 825 9 6 13 0.03 633 -24.7 -6.0 -1.6
7 88% 146 36 3 47 0.20 764 -12.7 2.5 6.7
8 15% 143 17 2 23 0.38 1047 -4.7 5.5 9.2
9* 96% 816 12 9 18 0.03 724 -18.3 -2.1 2.1
10* 98% 823 21 5 31 0.04 731 -15.9 0.2 4.4
11 98% 145 32 26 42 0.38 760 -13.3 2.1 6.2
12* 99% 816 39 6 55 0.04
13 81% 146 54 14 70 0.26 832 -8.1 5.7 9.7
14 95% 146 35 21 46 0.31 765 -12.7 2.5 6.6
15* 98% 182 103 70 139 0.19 620 -16.8 2.3 6.8
Table 2  黑云母二长花岗岩锆石微量元素分析数据及计算参数
样品编号 H5787-1-2 H6328-2-3 H6331-1-2 H6135-1-3 H6140-2-4 H6143-1-3
SiO2 73.24 72.78 72.42 73.33 72.37 73.08
Al2O3 14.02 14.96 15.06 14.69 14.61 15.05
Fe2O3 0.17 0.15 0.04 0.29 0.44 0.26
FeO 0.97 0.84 0.21 1.62 2.50 1.47
MgO 0.63 0.68 0.73 0.67 0.91 0.60
CaO 1.10 1.47 1.30 1.46 0.87 1.09
Na2O 2.70 2.91 2.61 2.72 2.04 2.62
K2O 4.16 4.39 4.84 4.33 4.62 4.50
P2O5 0.16 0.12 0.13 0.11 0.18 0.10
MnO 0.06 0.04 0.04 0.04 0.07 0.03
TiO2 0.35 0.33 0.34 0.33 0.38 0.30
La 24.40 27.50 25.20 23.60 13.90 22.50
Ce 50.00 53.90 47.80 46.40 30.70 44.10
Pr 5.39 5.54 5.04 4.84 3.42 4.51
Nd 18.60 18.10 16.90 15.90 12.30 14.60
Sm 3.56 3.21 2.95 2.79 2.92 2.63
Eu 0.50 0.52 0.59 0.50 0.47 0.47
Gd 3.32 2.42 2.33 2.79 3.00 1.97
Tb 0.46 0.29 0.30 0.34 0.49 0.24
Dy 2.58 1.44 1.55 1.56 2.52 1.15
Ho 0.48 0.24 0.26 0.28 0.36 0.19
Er 1.26 0.60 0.65 0.69 0.79 0.49
Tm 0.18 0.08 0.08 0.09 0.10 0.07
Yb 1.22 0.57 0.54 0.53 0.59 0.45
Lu 0.17 0.07 0.07 0.08 0.08 0.06
Sc 4.02 3.87 4.03 3.69 6.84 3.43
V 23.10 24.30 25.80 24.50 33.90 21.50
Cr 5.55 9.49 7.71 5.85 12.00 8.08
Co 3.07 3.22 3.34 3.03 5.20 3.16
Ni 2.88 3.46 3.53 3.38 10.90 2.75
Cu 5.76 17.00 40.80 49.30 32.10 8.10
Zn 43.90 46.60 36.40 64.60 47.40 41.50
Ga 17.40 18.00 17.90 17.30 13.80 18.40
Rb 232.00 199.00 224.00 201.00 188.00 198.00
Sr 94.40 124.00 132.00 113.00 44.40 113.00
Y 11.30 6.70 6.97 5.39 10.90 5.04
Zr 133.00 137.00 135.00 133.00 141.00 132.00
Nb 10.10 5.42 5.53 5.33 5.77 5.27
Cs 21.50 17.50 24.30 16.20 32.20 15.80
Ba 141.00 287.00 326.00 288.00 161.00 315.00
Hf 4.60 5.20 4.60 3.80 4.60 4.40
Ta 1.73 0.86 0.82 0.72 0.92 0.95
Pb 21.70 26.30 26.80 26.60 21.70 27.40
Th 15.10 17.20 15.20 15.10 6.45 15.30
U 5.01 2.68 2.49 2.62 2.41 3.21
Table 3  黑云母二长花岗岩主量、稀土及微量元素分析结果
Fig.3  黑云母二长花岗岩岩石化学分类图
Fig.4  黑云母二长花岗岩球粒陨石标准化稀土元素配分图
Fig.5  黑云母二长花岗岩A(Al-Na-K)-C(Ca)-F(Mg+Fe2+)成因类型判别图解
(底图据White and Chappell, 1977)[9]
Fig.6  黑云母二长花岗岩岩石成因类型判别图解
Fig.7  Fe2O3/FeO-Rb/Sr图(底图据Blevin[15])(a) 和Fe2O3/FeO-SiO2图(底图据Lehmann[16])(b)
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