New progress in the study of the Oyu Tolgoi porphyry deposit in southern Mongolia
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摘要:
南蒙古欧玉陶勒盖矿床是世界上已知最大的斑岩型铜金矿床之一,处在中古生代哈萨克-蒙古岩浆弧内,是中国“一带一路”项目中中国企业“走出去”的重要方向之一。铜金储量高、矿床品位好、矿化范围广、矿体规模巨大,属世界级超大型斑岩型铜(金)矿床,开发潜力巨大。在收集大量资料的基础上,通过整理和分析,建立成因模型,并划分出北Heruga区域、Javkhlant区域、西Hugo深部区域、西Hugo深部区域、Ulaan Khud北部矿点5个找矿远景区。欧玉陶勒盖矿床所在成矿带沿哈萨克-蒙古岩浆弧向两端延伸,向西经新疆土屋铜矿延伸至哈萨克斯坦境内的科翁腊德和阿克脱盖斑岩铜矿,向东延伸至中国境内多宝山、铜山地区。
Abstract:The Oyu Tolgoi deposit, one of the largest porphyry Cu (Au) deposits in the world, is characterized by high copper and gold reserves, high grade, wide range and large scale mineralization of the orebody. China-Mongolia border extends for 80km, which belongs to China's "One Belt, One Road" project and hence is one of the important directions for the going out policy of China's enterprises. On the basis of the information collected and analyzed by the authors, it is considered that North Heruga region, Javkhlant region, West Hugo deep region, West Hugo deep region, Ulaan Khud northern region are five strategic targets. On such a basis, the authors set up a metallogenic model. The authors hold that the Oyu Tolgoi deposit is located in the metallogenic belt which extents along the Kazakh-Mongolian magmatic arc to the two ends. In the west, the belt extends through the Tuwu copper deposit of Xinjiang to the Kounrad porphyry copper deposit and another porphyry copper deposit in the territory of Kazakhstan; in the east, it extends to Duobaoshan and Tongshan area within the territory of China.
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Keywords:
- southern Mongolia /
- Ouyu Tolgoi /
- porphyry deposits /
- island arc
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致谢: 数据收集阶段得到国土资源部信息中心张秋明研究员、中国科学院地质与地球物理研究所申萍研究员、中国地质大学(北京)汪傲、李运、常玉虎硕士研究生的大力帮助,编写论文的过程中得到中国地质科学院矿产资源研究所聂凤军研究员的悉心指导,在此深表感谢。
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图 1 欧玉陶勒盖交通位置[1]
Figure 1. Traffic location of Oyu Tolgoi
图 3 蒙古国欧玉陶勒盖斑岩铜-金矿系统雨果杜梅特矿床有代表性的地质横剖面和纵剖面图(据参考文献[12]修改)(图示出了矿石分布与火山容矿岩石、上覆火山沉积岩套、主要诱发性(causative)石英二长岩侵入体和成矿晚期到成矿期后黑云母花岗闪长岩的关系。该矿床群出露于地表、向上倾伏的欧玉中部剖面和欧玉西南部剖面及进一步向南的深埋、向下断陷的Heruga矿体和Heruga北矿体明显具有类似的关系)
a-雨果杜梅特南矿床的NE6200号剖面;b-雨果杜梅特北矿床的N4767200号剖面;c-雨果杜梅特南矿床的矿石品位框的轮廓线和雨果杜梅特北矿床的横剖面;d-穿越雨果杜梅特矿床部分区段的纵剖面(以图解的方式显示出该矿床的地质环境和品位分布情况)
Figure 3. Representative geological cross section and long section through the Hugo Dummett deposit of the Oyu Tolgoi porphyry Cu-Au system, Mongolia
图 5 球粒陨石标准化配分图[17]
Figure 5. Chondrite-normalized REE patterns of the samples
图 6 欧玉陶勒盖矿集区单颗粒锆石模式年龄[17]
Figure 6. Zircon grain age of samples from Oyu Tolgoi
图 7 欧玉陶勒盖矿集区岩浆岩Pb构造环境演化图解[17]
UC-上地壳;OR-造山带;M-地幔演化线;LC-下地壳;Devonian MORB-泥盆纪大洋中脊玄武岩
Figure 7. Initial 207Pb/204Pb versus 206Pb/204Pb and 208Pb/204Pb versus 206Pb/204Pb plots showing analytical results for plutonic and volcanic rocks from Oyu Tolgoi and surrounding areas
图 8 ASTER SWIR-BRlO模型中欧玉陶勒盖矿区蚀变模式[26]
DG-泥盆系花岗岩;VS-火山沉积岩;HD-雨果杜梅特;CO-欧玉中部;SWO-欧玉西南部;OT North Pluton-欧玉北部深成岩体;SO-欧玉南部
Figure 8. Alteration patterns of Oyu Tolgoi region extracted by ASTER SWIR-BRLO models
图 12 成矿远景区[1]
Figure 12. Metallogenic prospective area
图 13 中部欧亚阿尔泰和外贝加尔-蒙古造山拼贴体示意性构造图[30-31](图中显示去除中生代-新生代盆地和表面覆盖层之后选定的斑岩型铜-金/钼矿床)
Figure 13. Simplified tectonic map of the Altay and Transbaikal-Mongolian orogenic collages in central Eurasia, showing the location of selected porphyry Cu-Au/Mo deposits, after removal of Mesozoic-Cenozoic basins and superficial cover
图 14 中亚成矿域主要斑岩铜矿床含矿岩体Nb/Yb-Th/Yb图解(a)和Yb-Ta图解(b)[26]
OIB-洋岛玄武岩;E-MORB-富集型大洋中脊玄武岩;N-MORB-正常型大洋中脊玄武岩;WPG-板内型花岗岩;VAG-火山弧花岗岩;ORG-洋脊型花岗岩;syn-COLG-同碰撞花岗岩
Figure 14. Nb/Yb-Th/Yb diagram (a) and Yb-Ta diagram (b) of the ore-bearing rock mass of the main porphyry copper deposits in Central Asia metallogenic domain
表 1 欧玉陶勒盖矿产资源概况[1]
Table 1 Geological section showing mineral resources of Oyu Tolgoi area
项目 矿床 矿石量/Mt Cu/% Au/(g·t-1) Ag/(g·t-1) Mo/% 金属储量 铜/Mt 金/t 银/t 钼/104t 欧玉西南部矿床-露天(以Cu当量边界品位为0.22%进行计算) 探明值 432 0.52 0.41 1.37 0.005 2.26 161.39 540.2 2.22 控制值 740 0.38 0.23 1.12 0.006 2.84 155.27 757.67 4.08 探明+控制 1172 0.44 0.3 1.21 0.005 5.11 316.66 1297.87 6.3 推测值 390 0.29 0.16 0.87 0.004 1.12 55.34 307.93 1.72 欧玉西南部矿床-地下(以Cu当量边界品位为0.37%进行计算) 探明值 14 0.4 0.78 1.15 0.004 5.49 9.7 14.43 0.05 控制值 93 0.35 0.59 1.19 0.003 3.23 50.07 100.98 0.32 探明+控制 107 0.35 0.61 1.18 0.003 3.78 59.76 115.44 0.37 推测值 159 0.39 0.32 0.85 0.003 6.14 46.44 124.23 0.4 雨果杜梅特矿床群(以Cu当量边界品位为0.37%进行计算) 探明值 OT LLC 98 1.97 0.46 4.48 0.003 1.92 40.99 398.2 0.29 EJV 1 1.43 0.12 2.86 0.004 1.58 0.11 2.92 0.004 整个北雨果地区 99 1.96 0.46 4.46 0.003 1.94 41.11 401.12 0.299 探明值 OT LLC 749 1.56 0.34 3.35 0.003 1.17 234.39 2288.32 2.585 EJV 128 1.65 0.55 4.12 0.003 2.12 64.38 481.6 0.45 整个南雨果地区 877 1.57 0.37 3.46 0.003 13.79 298.78 2769.95 2.99 探明值 OT LLC 847 1.61 0.36 3.48 0.003 13.59 275.39 2686.51 2.86 EJV 129 1.65 0.55 4.11 0.003 2.13 64.52 484.52 0.45 整个北雨果地区 976 1.61 0.38 3.56 0.003 15.72 339.88 3171.06 3.31 推测值 OT LLC 811 0.77 0.27 2.34 0.003 6.26 200.09 1728.3 2.81 EJV 179 0.99 0.34 2.68 0.003 1.76 55.65 437.09 0.45 整个北雨果地区 990 0.81 0.28 2.4 0.003 8.03 255.74 2165.39 3.27 推测值 南雨果地区 845 0.77 0.07 1.78 0.007 6.52 52.76 1372.29 5.62 荷茹嘎矿床(以Cu当量边界品位为0.37%进行计算) EJV推测值 1700 0.39 0.37 1.39 0.011 6.63 579.12 2153.29 19.23 TRQ推测值 116 0.41 0.29 1.56 0.011 0.47 30.62 164.97 1.27 整个荷茹嘎矿床资源储量的推测值 1816 0.39 0.37 1.4 0.011 7.09 609.74 2318.25 20.5 整个欧玉陶勒盖矿集区 探明值 544 0.78 0.43 1.93 0.005 4.25 212.22 955.75 2.59 控制值 1711 0.99 0.32 2.33 0.004 16.96 504.11 3628.6 7.44 探明+控制 2255 0.94 0.35 2.23 0.004 21.21 716.34 4584.34 9.98 推测值 4201 0.56 0.27 1.64 0.008 23.38 1019.99 6288.07 31.52 注:计算过程中四舍五入,所以计算的总值并不总是等于各个值相加之和;OT LLC-欧玉陶勒盖有限责任合作公司;EJV-Entrée Gold合资公司;TRQ-绿松石山资源公司 表 2 矿区岩浆岩主量元素测试结果[17]
Table 2 Analytical results of main elements of magmatic rocks in the mining area
% 样品号 岩性 SiO2 Al2O3 TFe2O3 MnO MgO CaO Na2O K2O TiO2 P2O5 EGD001(75) 花岗闪长岩 62.77 16.66 4.86 0.124 0.9 2.29 4.53 5.13 0.439 0.18 OTD514(1631) 黑云母花岗闪长岩 63.73 15.19 3.8 0.07 1.89 2.97 4.6 2.75 0.472 0.2 EGRCD066(172) 英安岩 66.12 15.91 3.61 0.113 1.07 2.57 3.98 3.75 0.439 0.19 OTD1218(1048) 英安岩 67.42 16.47 3.83 0.047 0.95 0.95 1.84 3.75 0.444 0.23 OTD404(399) 英安岩 67.47 15.68 3.3 0.081 0.51 2.02 4.53 2.49 0.323 0.16 EGRCD073(120) 石英二长闪长岩 60.23 17.84 5.8 0.052 1.56 3.43 4.33 4.15 0.556 0.28 OTRCD388(504) 石英二长闪长岩 68.91 13.14 3.98 0.012 0.49 0.17 0.11 3.91 0.807 0.29 OTD258(82) 石英二长闪长岩 68.9 16.42 4.38 0.016 0.54 0.13 0.5 3.79 0.396 0.17 OTD343(1247) 石英二长闪长岩 59.23 17.12 7.91 0.121 1.38 0.26 0.25 4.69 0.533 0.03 OTD514(1289) 石英二长闪长岩 70.98 13.01 2.94 0.015 0.47 0.1 0.2 3.59 0.193 0.06 OTD514(1405) 石英二长闪长岩 68.6 13.75 3.35 0.048 0.97 0.84 0.22 5.65 0.331 0.14 OTD514(2161) 石英二长闪长岩 65.13 16.01 2.91 0.038 0.56 2.41 4.18 4.87 0.305 0.11 OTD786(150) 石英二长闪长岩 59.45 16.75 4.77 0.135 1.43 4.14 6.85 1.23 0.479 0.25 OTD976B(266) 玄武岩 42.96 14.26 11.6 0.2 4.98 9 1.66 2.6 1.64 0.56 OTD976B(552) 玄武岩 48.83 18.08 8.73 0.209 3.76 5.3 5.46 0.62 0.771 0.36 OTD976B(772) 玄武岩岩墙 49.32 14.97 10.59 0.175 5.78 9.74 2.84 2.53 0.743 0.27 OTD976B(1382) 玄武岩 46.28 15.67 11.6 0.219 8.85 3.43 0.72 3.12 1.138 0.28 UUD001A(590) 玄武岩 48.14 15.16 9.72 0.118 5.13 6.75 4.83 0.95 1.431 0.34 OTD1220(552) 玄武岩 48.54 13.43 10.35 0.163 6.62 11.26 3.25 0.71 0.669 0.26 OTD318(223) 玄武岩 44.99 15.7 12.53 0.224 7.46 10.47 2.5 1.14 1.032 0.24 表 3 矿区岩浆岩微量和稀土元素测试结果[17]
Table 3 Analytical results of trace and rare earth elements of magmatic rocks in the mining area
10-6 样品号 EGD001(75) OTD514(1631.2-1631.7) EGRDC066(172) OTD1218(1048-1048.8) OTD404(399) EGRCD073(120) OTRCD388(504) OTD258(82.5) OTD343(1247) OTD514(1289.15-1293.7) OTD514(1405.85-1410.15) OTD514(2161.35) OTD786(150) OTD976B (266-267) OTD976B (552) 0TB976B (772) OTD976B (1382.5-1383.5) UUDO1A (590-593) OTD1220(522) OTD318(223) 岩性 花岗闪长岩 黑云母花岗闪长岩 英安岩 英安岩 英安岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 石英二长闪长岩 玄武岩 玄武岩 玄武岩岩墙 玄武岩 玄武岩 玄武岩 玄武岩 Sc 8 7 6 6 4 7 13 5 6 2 4 3 6 35 17 37 31 30 40 40 Be 3 2 2 2 1 2 <1 2 2 <1 1 2 2 3 2 2 2 2 2 2 V 34 75 64 76 81 147 172 89 116 61 63 95 124 261 243 296 333 244 271 417 Cr <20 30 60 <20 <20 <20 30 <20 <20 <20 <20 <20 <20 30 30 90 90 490 180 80 Co 6 8 8 4 4 9 3 7 14 8 4 2 8 36 27 35 33 41 36 43 Ni <20 <20 30 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 <20 20 <20 200 30 40 Cu 40 50 100 110 60 4520 0.0326 210 1070 0.0462 0.0282 1360 130 120 50 340 650 50 130 200 Zn 70 80 110 70 50 40 60 120 260 100 90 50 90 120 100 90 250 110 80 150 Ga 20 20 19 18 18 20 11 23 20 13 15 18 17 20 20 17 18 17 15 20 Ge 1.8 1.3 1.3 1.5 1.5 1.8 2.5 1.5 1.3 2 1.6 1.5 2.5 1.6 1.6 2.1 1.7 2.4 2.5 2 As <5 <5 7 12 15 6 7 197 53 170 77 <5 24 45 29 32 <5 37 40 21 Rb 166 60 80 95 56 101 88 107 143 65 98 94 34 51 21 59 112 15 14 17 Sr 280 771 868 134 217 876 728 815 125 29 95 514 457 792 1185 694 83 516 544 592 Y 31.7 10.4 11.8 16.5 9.5 25.2 13 21.7 21.3 4 9.1 14.4 17.5 24 18.8 18.5 23.8 26.2 18.4 20.1 Zr 597 139 141 135 73 170 41 133 145 77 122 105 103 170 68 58 54 203 51 37 Nb 15.6 7.7 8.3 6.9 3.1 7.7 3.6 7.3 7.3 2.4 6.2 5.6 6.4 32.8 3.6 4.5 2.7 8.6 3 2.3 Mo <2 <2 <2 <2 <2 41 8 2 48 13 8 73 <2 <2 <2 <2 <2 <2 <2 <2 Ag <0.5 0.8 <0.5 <0.5 <0.5 <0.5 0.8 <0.5 <0.5 11.3 1.3 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.5 <0.5 <0.5 In <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.1 <0.1 <0.1 0.3 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 Sn 1 1 25 <1 <1 <1 2 <1 1 2 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 Sb 7.7 7.9 22.1 11.6 15.1 8.1 8.9 11.5 6.9 3.7 62 8.4 11 7.7 11.7 9.7 9.4 9.2 10.8 1 Cs 3.2 2.2 2.8 4.7 3.2 2.3 0.8 2 3.7 1.7 2.3 1.8 2.3 6.1 9.8 0.5 8.3 1.5 0.6 0.4 Ba 442 964 1080 174 134 829 335 926 723 147 443 971 244 683 239 396 176 512 302 307 La 22.3 15 16 14.5 7.31 17.4 5.71 14.4 13.3 2.76 3.6 13.2 16.2 39.2 11.4 10.3 7.91 21 8.44 7.51 Ce 49.7 30.8 33 28.9 14.9 37 10.9 28.7 29.3 5.33 8.07 24.4 32 77.3 25.8 21.3 19 48.1 17.8 16.9 Pr 6.38 3.87 4.13 3.69 1.92 4.97 1.47 3.63 3.92 0.68 1.12 2.93 4.1 9.23 3.64 2.82 2.93 6.41 2.49 2.47 Nd 22.3 13.3 14.1 12.5 6.9 18.2 6.22 12.8 14.6 2.49 4.76 10.2 14.4 31.6 14.5 11.3 12.6 23.8 10.2 11.2 Sm 5.08 2.72 2.94 2.73 1.63 4.27 1.72 3.04 3.46 0.54 1.26 2.18 3.24 6.46 3.46 2.8 3.43 5.57 2.65 3.2 Eu 10.1 0.859 0.831 0.876 0.571 1.32 0.651 0.974 1.12 0.227 0.41 0.734 1.13 2.27 1.31 1.06 1.28 2.05 0.977 1.23 Gd 4.7 2.24 2.57 2.72 1.53 4.18 2.19 3.21 3.33 0.6 1.37 2.09 3.26 6.03 3.44 3.02 4.05 5.55 2.95 3.73 Tb 0.8 0.33 0.38 0.45 0.25 0.68 0.38 0.54 0.57 0.1 0.23 0.34 0.5 0.87 0.54 0.5 0.71 0.85 0.49 0.61 Dy 4.96 1.83 2.09 2.71 1.47 3.99 2.29 3.38 3.53 0.62 1.37 2.11 2.87 4.5 3.17 3 4.28 4.61 3.08 3.6 Ho 1.01 0.35 0.41 0.56 0.31 0.8 0.45 0.71 0.74 0.13 0.3 0.45 0.56 0.81 0.62 0.61 0.87 0.91 0.64 0.7 Er 3.09 0.99 1.2 1.71 0.96 2.42 1.3 2.17 2.27 0.38 0.97 1.43 1.68 2.15 1.81 1.76 2.51 2.58 1.96 2.04 Tm 0.483 0.146 0.168 0.263 0.147 0.363 0.186 0.327 0.344 0.058 0.149 0.225 0.255 0.29 0.265 0.259 0.358 0.369 0.285 0.296 Yb 3.32 0.9 1 1.75 1.01 2.37 1.15 2.15 2.21 0.4 0.98 1.5 1.71 1.76 1.66 1.64 2.24 2.25 1.78 1.85 Lu 0.568 0.139 0.151 0.281 0.186 0.384 0.167 0.328 0.35 0.076 0.159 0.242 0.282 0.268 0.253 0.253 0.333 0.33 0.256 0.278 Hf 13.2 3.6 3.7 3.5 1.9 4.3 1.2 3.6 3.8 2.1 3.3 2.7 2.8 4.4 2 1.5 1.6 5.1 1.5 1.3 Ta 0.79 0.49 0.53 0.39 0.15 0.42 0.12 0.42 0.44 0.2 0.37 0.29 0.34 1.94 0.16 0.24 0.11 0.51 0.14 0.09 W <0.5 4.1 1.8 1.3 <0.5 4 3.4 <0.5 4.8 1.8 3.4 3.8 2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.5 Tl 0.63 0.2 0.49 0.87 0.51 0.3 2.14 1.66 1.43 0.92 0.68 0.4 0.19 0.18 0.09 0.13 1.29 0.11 <0.05 0.1 Pb 8 8 23 10 8 <5 53 30 <5 93 32 <5 12 5 <5 6 12 7 <5 8 Bi 0.1 0.1 0.4 0.3 0.1 0.7 0.6 0.3 0.1 2.3 0.6 <0.1 0.9 <0.1 0.1 0.1 0.1 0.2 <0.1 <0.1 Th 7.54 3.67 3.54 2.64 0.84 3.39 0.75 4.03 3.33 0.67 3.08 2.32 2.79 3.81 1.1 1.47 0.72 2.78 1.17 0.6 U 3.74 1.51 1.57 1.17 0.68 2 0.64 2.48 1.92 0.32 0.68 1.64 1.37 0.99 0.24 0.57 0.32 0.62 0.49 0.27 表 4 Sr和Nd同位素测试数据结果[17]
Table 4 Results of Sr and Nd isotope test
样品号 岩性 147Sm/144Nd 143Nd/144Nd 143Nd/144Ndt εNd(t) 87Rb/86Sr 87Sr/86Sr 87Sr/86Srt Tdm Tdm* EGD001(75) 花岗闪长岩 0.13773 0.512789 0.51247 5.6 1.716 0.71248 0.704 589 600 OTD514(1631.2-1631.7) 黑云母花岗闪长岩 0.12364 0.512637 0.51233 3.5 0.225 0.705528 0.7043 3.5 739 EGRDC066(172) 英安岩 0.12606 0.512638 0.51233 3.4 0.267 0.705885 0.7045 756 831 OTD1218(1048-1048.8) 英安岩 0.13204 0.512715 0.5124 4.5 2.054 0.719224 0.7087 676 716 OTD404(399) 英安岩 0.14282 0.512804 0.51247 5.7 0.747 0.707855 0.704 597 593 EGRCD073(120) 石英二长闪长岩 0.14184 0.512814 0.51248 6 0.334 0.705754 0.704 572 570 OTRCD388(504) 石英二长闪长岩 0.16719 0.51289 0.51249 6.3 0.35 0.705627 0.7038 624 538 OTD258(82.5) 石英二长闪长岩 0.14359 0.512796 0.51246 5.5 0.38 0.706051 0.7041 620 614 OTD343(1247) 石英二长闪长岩 0.14328 0.512827 0.51248 6.2 3.314 0.720915 0.7036 557 550 OTD514(1289.15-1293.7) 石英二长闪长岩 0.13111 0.512766 0.51245 5.5 6.496 0.72591 0.6922 585 615 OTD514(1405.85-1410.15) 石英二长闪长岩 0.16004 0.512929 0.51254 7.4 2.988 0.718426 0.7028 457 423 OTD514(2161.35) 石英二长闪长岩 0.12921 0.512773 0.51246 5.8 0.529 0.706611 0.7039 562 592 OTD786(150) 石英二长闪长岩 0.13603 0.512791 0.51246 5.9 0.215 0.705068 0.7039 574 588 OTD976B (266-267) 玄武岩 0.12359 0.512538 0.51225 1.4 0.186 0.705104 0.7041 892 998 OTD976B (552) 玄武岩 0.14427 0.512814 0.51247 5.9 0.051 0.704155 0.7039 589 581 0TB976B (772) 玄武岩岩墙 0.14981 0.512776 0.51242 4.9 0.246 0.70553 0.7043 713 680 OTD976B (1382.5-1383.5) 玄武岩 0.16459 0.51293 0.51254 7.2 3.91 0.723961 0.7038 489 441 UUDO1A (590-593) 玄武岩 0.14149 0.512784 0.51245 5.4 0.084 0.704254 0.7038 626 628 OTD1220(522) 玄武岩 0.15707 0.512801 0.51245 4.9 0.074 0.704478 0.7041 736 662 OTD318(223) 玄武岩 0.17274 0.51283 0.51242 4.9 0.083 0.704528 0.7041 878 681 注:Tdm=单阶段(线性)DM年龄。假定参数:147Sm/144NdCHUR=0.1967;143Nd/144NdCHUR=0.512638;147Sm/144NdDM=0.222;143Nd/144NdDM=0.513114 表 5 Pb同位素测试数据结果[17]
Table 5 Results of Pb isotope test
样品号 U/Pb Th/Pb Pb/10-6 U/Th 238U/204Pb 232Th/204Pb 206Pb/204Pb 207Pb/204Pb 208Pb/204Pb EGD001(75) 0.47 0.94 8 0.5 29.9 62.4 17.4 15.46 37.41 OTD514(1631.2-1631.7) 0.19 0.46 8 0.41 11.9 29.9 17.69 15.49 37.49 EGRDC066(172) 0.07 0.15 23 0.44 4.3 9.9 17.84 15.49 37.6 OTD1218(1048-1048.8) 0.12 0.26 10 0.44 7.3 17.1 17.86 15.47 37.56 OTD404(399) 0.09 0.11 8 0.81 5.3 6.8 17.88 15.46 37.55 EGRCD073(120) 0.4 0.68 5 0.59 25.4 44.5 17.42 15.43 37.25 OTRCD388(504) 0.01 0.01 53 0.85 0.7 0.9 17.76 15.45 37.44 OTD258(82.5) 0.08 0.13 30 0.62 5.1 8.6 17.64 15.44 37.35 OTD343(1247) 0.38 0.67 5 0.58 24.4 43.7 17.45 15.44 37.28 OTD514(1289.15-1293.7) 0 0.01 93 0.48 0.2 0.5 17.76 15.44 37.43 OTD514(1405.85-1410.15) 0.02 0.1 32 0.22 1.3 6.2 17.8 15.47 37.51 OTD514(2161.35) 0.33 0.46 5 0.71 20.8 30.5 17.68 15.46 37.52 OTD786(150) 0.11 0.23 12 0.49 7.2 15.1 17.8 15.46 37.5 OTD976B (266-267) 0.2 0.76 5 0.26 12.5 49.8 17.67 15.47 37.46 OTD976B (552) 0.05 0.22 5 0.22 3 14.2 17.94 15.46 37.59 0TB976B (772) 0.1 0.25 6 0.39 6 15.9 17.92 15.46 37.51 OTD976B (1382.5-1383.5) 0.03 0.06 12 0.44 1.7 3.9 17.8 15.46 37.48 UUDO1A (590-593) 0.09 0.4 7 0.22 5.6 25.8 17.91 15.48 37.64 OTD1220(522) 0.1 0.23 5 0.42 6.1 15.1 17.7 15.44 37.34 OTD318(223) 0.03 0.08 8 0.45 2.1 4.8 17.78 15.44 37.44 表 6 锆石颗粒的Hf同位素测试数据结果[17]
Table 6 Analytical results of Hf isotope of zircon grains
表 7 欧玉陶勒盖矿床及其附近重要的斑岩型铜-金/钼矿床的矿石量、品位和年龄数据
Table 7 Ore grade and age data for the Oyu Tolgoi deposit and its neighboring important porphyry Cu-Au/Mo deposits
矿床 位置 矿石量 品位 所含金属 年龄/Ma 多宝山 中国(黑龙江) 951Mt 0.46% Cu 0.02% Mo 0.13g/t Au 4.4 Mt Cu 120t Au 476 铜山 中国(黑龙江) 180Mt 0.47% Cu 0.023% Mo 0.9 Mt Cu 0.04Mt Mo 约476 欧玉陶勒盖 蒙古国 4.2G 0.56% Cu 0.008% Mo 0.27g/t Au 2337Mt u 1019.99t Au 370 查干苏布尔加 蒙古国 240Mt 0.53% Cu 0.02% Mo 0.08g/t Au 1.3Mt Cu 19t Au 325~365 土屋-延东矿床群 中国(新疆) 652Mt 0.67% Cu 0.08g/t Au 4.2Mt 22t 330 科翁腊德 哈萨克斯坦 > 800Mt 0.62% Cu 0.0035% Mo 0.1~0.76g/t Au > 5Mt Cu > 600t Au 330 阿克托盖矿床群 哈萨克斯坦 1.72Gt 0.34%Cu 0.04g/t Au 5.8Mt 68t Au 约320 努尔卡兹甘 哈萨克斯坦 200Mt 0.89% Cu 0.1% Mo 0.38g/t Au 1.8Mt Cu 76t Au 410 -
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