Geoscience ›› 2019, Vol. 33 ›› Issue (03): 501-513.DOI: 10.19657/j.geoscience.1000-8527.2019.03.04
• Ore Deposits and Petrology • Previous Articles Next Articles
LIU Xiang1(), GONG Xiaoping1, LIU Yangyang1, WANG Zhe2, FENG Jun2, LIU Shijie1, HAN Bingjun1, QI Rui1
Received:
2018-01-11
Revised:
2018-12-08
Online:
2019-06-23
Published:
2019-06-24
Contact:
GONG Xiaoping
CLC Number:
LIU Xiang, GONG Xiaoping, LIU Yangyang, WANG Zhe, FENG Jun, LIU Shijie, HAN Bingjun, QI Rui. Geochemical Characteristics and Tectonic Significance of Ordovician Intrusions in Bayanbulak, Xinjiang,China[J]. Geoscience, 2019, 33(03): 501-513.
样品岩性 | 样品编号 | SiO2 | TiO2 | Al2O3 | Fe2O3 | FeO | MnO | MgO | CaO | Na2O | K2O | P2O5 | 烧失量 | 总量 | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
二长花岗岩 | PM4-2/1 | 70.97 | 0.39 | 14.28 | 0.90 | 1.71 | 0.04 | 0.82 | 1.09 | 2.66 | 5.18 | 0.09 | 1.16 | 100.00 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 62.48 | 0.67 | 15.27 | 1.37 | 3.43 | 0.09 | 2.02 | 3.65 | 3.24 | 4.16 | 0.17 | 2.38 | 100.00 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 74.10 | 0.10 | 13.77 | 0.56 | 1.28 | 0.02 | 0.30 | 0.55 | 2.33 | 5.60 | 0.04 | 0.71 | 99.99 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 72.29 | 0.25 | 13.54 | 3.06 | 2.12 | 0.04 | 0.33 | 0.94 | 3.27 | 5.30 | 0.06 | 0.16 | 99.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 72.04 | 0.24 | 13.59 | 2.52 | 1.80 | 0.05 | 0.47 | 1.62 | 3.15 | 5.02 | 0.09 | 0.72 | 99.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 64.83 | 0.58 | 14.86 | 5.77 | 3.88 | 0.08 | 2.09 | 2.33 | 3.24 | 5.18 | 0.18 | 1.15 | 100.00 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 62.47 | 0.71 | 15.68 | 6.66 | 4.95 | 0.09 | 2.67 | 2.60 | 3.75 | 3.91 | 0.22 | 0.95 | 99.99 | |||||||||||||||
样品岩性 | 样品编号 | 石英 | 钙长石 | 钠长石 | 正长石 | 碱长石 | 斜长石 | A/CNK | σ | SI | Rb | Ba | Th | U | |||||||||||||||
二长花岗岩 | PM4-2/1 | 32.14 | 4.91 | 22.94 | 31.2 | 51.02 | 8.03 | 1.07 | 2.18 | 7.28 | 228 | 683 | 30.6 | 2.29 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 16.47 | 15.37 | 28.40 | 25.46 | 43.17 | 26.06 | 0.95 | 2.71 | 14.21 | 177 | 955 | 24.2 | 3.88 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 37.30 | 2.50 | 19.99 | 33.55 | 52.15 | 3.89 | 1.08 | 2.01 | 2.98 | 232 | 519 | 24.2 | 3.71 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 29.09 | 4.22 | 27.36 | 30.97 | 55.05 | 7.50 | 0.96 | 2.52 | 2.35 | 267 | 743 | 25.4 | 3.80 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 29.36 | 7.41 | 26.51 | 29.51 | 50.7 | 12.73 | 0.94 | 2.30 | 3.64 | 249 | 520 | 28.2 | 4.71 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 15.73 | 10.09 | 26.65 | 29.76 | 49.66 | 16.84 | 0.94 | 3.35 | 10.44 | 198 | 1 120 | 17.35 | 2.66 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 13.11 | 11.07 | 30.65 | 22.32 | 42.81 | 21.23 | 1.05 | 3.16 | 12.27 | 174.5 | 965 | 13.2 | 2.20 | |||||||||||||||
样品岩性 | 样品编号 | K | Ta | Nb | Sr | P | Zr | Hf | Ti | La | Ce | Pr | Nd | Sm | |||||||||||||||
二长花岗岩 | PM4-2/1 | 42 982.98 | 1.75 | 16.5 | 151 | 392.96 | 267 | 7.66 | 2 340 | 60.9 | 116 | 14.6 | 48.1 | 9.02 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 34 519.15 | 1.09 | 11.4 | 362 | 742.25 | 148 | 4.7 | 4 020 | 44.9 | 87 | 11.2 | 42.3 | 6.82 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 46 468.09 | 1.23 | 15.0 | 96.5 | 174.65 | 114 | 4.06 | 600 | 45.5 | 81.3 | 9.67 | 34.3 | 5.84 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 43 978.72 | 1.8 | 17.6 | 120 | 261.97 | 178 | 5.3 | 1 500 | 54.4 | 102.5 | 9.4 | 30.5 | 4.87 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 41 655.32 | 1.9 | 17.7 | 147 | 392.96 | 139 | 4.1 | 1 440 | 48.0 | 92.3 | 9.45 | 31.7 | 5.43 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 42 982.98 | 1.2 | 13.1 | 299 | 785.92 | 167 | 4.7 | 3 480 | 41.4 | 83.8 | 8.85 | 31.5 | 5.40 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 32 444.68 | 1.0 | 12.2 | 277 | 960.56 | 183 | 5.1 | 4 260 | 39.9 | 79.8 | 8.41 | 30.8 | 5.25 | |||||||||||||||
样品岩性 | 样品编号 | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | ΣREE | LREE | HREE | |||||||||||||||
二长花岗岩 | PM4-2/1 | 1.19 | 7.52 | 1.19 | 6.27 | 1.33 | 3.7 | 0.62 | 4.01 | 0.63 | 13.9 | 275.08 | 249.81 | 25.27 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 1.29 | 5.35 | 0.73 | 3.84 | 0.75 | 2.07 | 0.33 | 2.07 | 0.33 | 26.6 | 208.98 | 193.51 | 15.47 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 0.89 | 4.28 | 0.56 | 3.04 | 0.57 | 1.49 | 0.23 | 1.50 | 0.23 | 23.0 | 189.4 | 177.5 | 11.90 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 0.65 | 3.74 | 0.65 | 3.73 | 0.76 | 2.21 | 0.35 | 2.21 | 0.34 | 17.7 | 216.31 | 202.32 | 13.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 0.63 | 4.36 | 0.69 | 3.83 | 0.77 | 2.25 | 0.34 | 2.23 | 0.35 | 21.9 | 202.33 | 187.51 | 14.82 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 1.18 | 4.25 | 0.64 | 3.60 | 0.70 | 2.13 | 0.34 | 2.06 | 0.31 | 24.1 | 186.16 | 172.13 | 14.03 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 1.17 | 4.21 | 0.66 | 3.49 | 0.71 | 2.05 | 0.3 | 1.89 | 0.28 | 13.3 | 178.92 | 165.33 | 13.59 | |||||||||||||||
样品岩性 | 样品编号 | LREE/HREE | LaN/YbN | δEu | δCe | ||||||||||||||||||||||||
二长花岗岩 | PM4-2/1 | 9.89 | 10.89 | 0.43 | 0.92 | ||||||||||||||||||||||||
石英闪长岩 | PM7-3/1 | 12.51 | 15.56 | 0.63 | 0.93 | ||||||||||||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 14.92 | 21.76 | 0.52 | 0.9 | ||||||||||||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 14.46 | 17.66 | 0.45 | 1.02 | ||||||||||||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 12.65 | 15.44 | 0.38 | 1.00 | ||||||||||||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 12.27 | 14.42 | 0.73 | 1.02 | ||||||||||||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 12.17 | 15.14 | 0.74 | 1.02 |
Table 1 Major element(%), rare earth element (10-6) and trace element (10-6) contents of the Ordovician intrusive rocks at Bayinbuluk
样品岩性 | 样品编号 | SiO2 | TiO2 | Al2O3 | Fe2O3 | FeO | MnO | MgO | CaO | Na2O | K2O | P2O5 | 烧失量 | 总量 | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
二长花岗岩 | PM4-2/1 | 70.97 | 0.39 | 14.28 | 0.90 | 1.71 | 0.04 | 0.82 | 1.09 | 2.66 | 5.18 | 0.09 | 1.16 | 100.00 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 62.48 | 0.67 | 15.27 | 1.37 | 3.43 | 0.09 | 2.02 | 3.65 | 3.24 | 4.16 | 0.17 | 2.38 | 100.00 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 74.10 | 0.10 | 13.77 | 0.56 | 1.28 | 0.02 | 0.30 | 0.55 | 2.33 | 5.60 | 0.04 | 0.71 | 99.99 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 72.29 | 0.25 | 13.54 | 3.06 | 2.12 | 0.04 | 0.33 | 0.94 | 3.27 | 5.30 | 0.06 | 0.16 | 99.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 72.04 | 0.24 | 13.59 | 2.52 | 1.80 | 0.05 | 0.47 | 1.62 | 3.15 | 5.02 | 0.09 | 0.72 | 99.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 64.83 | 0.58 | 14.86 | 5.77 | 3.88 | 0.08 | 2.09 | 2.33 | 3.24 | 5.18 | 0.18 | 1.15 | 100.00 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 62.47 | 0.71 | 15.68 | 6.66 | 4.95 | 0.09 | 2.67 | 2.60 | 3.75 | 3.91 | 0.22 | 0.95 | 99.99 | |||||||||||||||
样品岩性 | 样品编号 | 石英 | 钙长石 | 钠长石 | 正长石 | 碱长石 | 斜长石 | A/CNK | σ | SI | Rb | Ba | Th | U | |||||||||||||||
二长花岗岩 | PM4-2/1 | 32.14 | 4.91 | 22.94 | 31.2 | 51.02 | 8.03 | 1.07 | 2.18 | 7.28 | 228 | 683 | 30.6 | 2.29 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 16.47 | 15.37 | 28.40 | 25.46 | 43.17 | 26.06 | 0.95 | 2.71 | 14.21 | 177 | 955 | 24.2 | 3.88 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 37.30 | 2.50 | 19.99 | 33.55 | 52.15 | 3.89 | 1.08 | 2.01 | 2.98 | 232 | 519 | 24.2 | 3.71 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 29.09 | 4.22 | 27.36 | 30.97 | 55.05 | 7.50 | 0.96 | 2.52 | 2.35 | 267 | 743 | 25.4 | 3.80 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 29.36 | 7.41 | 26.51 | 29.51 | 50.7 | 12.73 | 0.94 | 2.30 | 3.64 | 249 | 520 | 28.2 | 4.71 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 15.73 | 10.09 | 26.65 | 29.76 | 49.66 | 16.84 | 0.94 | 3.35 | 10.44 | 198 | 1 120 | 17.35 | 2.66 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 13.11 | 11.07 | 30.65 | 22.32 | 42.81 | 21.23 | 1.05 | 3.16 | 12.27 | 174.5 | 965 | 13.2 | 2.20 | |||||||||||||||
样品岩性 | 样品编号 | K | Ta | Nb | Sr | P | Zr | Hf | Ti | La | Ce | Pr | Nd | Sm | |||||||||||||||
二长花岗岩 | PM4-2/1 | 42 982.98 | 1.75 | 16.5 | 151 | 392.96 | 267 | 7.66 | 2 340 | 60.9 | 116 | 14.6 | 48.1 | 9.02 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 34 519.15 | 1.09 | 11.4 | 362 | 742.25 | 148 | 4.7 | 4 020 | 44.9 | 87 | 11.2 | 42.3 | 6.82 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 46 468.09 | 1.23 | 15.0 | 96.5 | 174.65 | 114 | 4.06 | 600 | 45.5 | 81.3 | 9.67 | 34.3 | 5.84 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 43 978.72 | 1.8 | 17.6 | 120 | 261.97 | 178 | 5.3 | 1 500 | 54.4 | 102.5 | 9.4 | 30.5 | 4.87 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 41 655.32 | 1.9 | 17.7 | 147 | 392.96 | 139 | 4.1 | 1 440 | 48.0 | 92.3 | 9.45 | 31.7 | 5.43 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 42 982.98 | 1.2 | 13.1 | 299 | 785.92 | 167 | 4.7 | 3 480 | 41.4 | 83.8 | 8.85 | 31.5 | 5.40 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 32 444.68 | 1.0 | 12.2 | 277 | 960.56 | 183 | 5.1 | 4 260 | 39.9 | 79.8 | 8.41 | 30.8 | 5.25 | |||||||||||||||
样品岩性 | 样品编号 | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | ΣREE | LREE | HREE | |||||||||||||||
二长花岗岩 | PM4-2/1 | 1.19 | 7.52 | 1.19 | 6.27 | 1.33 | 3.7 | 0.62 | 4.01 | 0.63 | 13.9 | 275.08 | 249.81 | 25.27 | |||||||||||||||
石英闪长岩 | PM7-3/1 | 1.29 | 5.35 | 0.73 | 3.84 | 0.75 | 2.07 | 0.33 | 2.07 | 0.33 | 26.6 | 208.98 | 193.51 | 15.47 | |||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 0.89 | 4.28 | 0.56 | 3.04 | 0.57 | 1.49 | 0.23 | 1.50 | 0.23 | 23.0 | 189.4 | 177.5 | 11.90 | |||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 0.65 | 3.74 | 0.65 | 3.73 | 0.76 | 2.21 | 0.35 | 2.21 | 0.34 | 17.7 | 216.31 | 202.32 | 13.99 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 0.63 | 4.36 | 0.69 | 3.83 | 0.77 | 2.25 | 0.34 | 2.23 | 0.35 | 21.9 | 202.33 | 187.51 | 14.82 | |||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 1.18 | 4.25 | 0.64 | 3.60 | 0.70 | 2.13 | 0.34 | 2.06 | 0.31 | 24.1 | 186.16 | 172.13 | 14.03 | |||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 1.17 | 4.21 | 0.66 | 3.49 | 0.71 | 2.05 | 0.3 | 1.89 | 0.28 | 13.3 | 178.92 | 165.33 | 13.59 | |||||||||||||||
样品岩性 | 样品编号 | LREE/HREE | LaN/YbN | δEu | δCe | ||||||||||||||||||||||||
二长花岗岩 | PM4-2/1 | 9.89 | 10.89 | 0.43 | 0.92 | ||||||||||||||||||||||||
石英闪长岩 | PM7-3/1 | 12.51 | 15.56 | 0.63 | 0.93 | ||||||||||||||||||||||||
黑云母二长花岗岩 | PM10-3/1 | 14.92 | 21.76 | 0.52 | 0.9 | ||||||||||||||||||||||||
细粒二长花岗岩 | 15XF-BY-19 | 14.46 | 17.66 | 0.45 | 1.02 | ||||||||||||||||||||||||
蚀变二长花岗岩 | 15XF-BY-20 | 12.65 | 15.44 | 0.38 | 1.00 | ||||||||||||||||||||||||
蚀变二长花岗岩 | 15XF-BY-21 | 12.27 | 14.42 | 0.73 | 1.02 | ||||||||||||||||||||||||
黑云斜长片岩 | 15XF-BY-22 | 12.17 | 15.14 | 0.74 | 1.02 |
Fig.6 AR-SiO2 diagram of the Ordovician intrusive rock suites (a) and A/CNK-A/NK aluminum saturation index diagram (b) AR-SiO2底图据Wilson[40],1989;A/CNK-A/NK底图据Maniar等[41],1989
样品编号 | 样品岩性 | 年龄/Ma | 侵位时代 | 测试方法 |
---|---|---|---|---|
2014TWS-PM10-3/1 | 灰白色中细粒黑云母二长花岗岩 | 462.7±6.2(n=7,MSWD=1.3) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
2014TWS-PM7-3/1 | 灰白色中细粒石英闪长岩 | 463.4±2.8(n=18,MSWD=0.48) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
2014TWS-PM4-2/1 | 灰白色中粗粒二长花岗岩 | 471.5±5.9(n=8,MSWD=1.4) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
Table 2 Zircon U-Pb results for the Ordovician intrusive rocks at Bayinbuluk
样品编号 | 样品岩性 | 年龄/Ma | 侵位时代 | 测试方法 |
---|---|---|---|---|
2014TWS-PM10-3/1 | 灰白色中细粒黑云母二长花岗岩 | 462.7±6.2(n=7,MSWD=1.3) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
2014TWS-PM7-3/1 | 灰白色中细粒石英闪长岩 | 463.4±2.8(n=18,MSWD=0.48) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
2014TWS-PM4-2/1 | 灰白色中粗粒二长花岗岩 | 471.5±5.9(n=8,MSWD=1.4) | 中奥陶世 | LA-ICP-MS锆石U-Pb |
样品 岩性 | 测点编号 | 比值 | 年龄/Ma | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 207Pb/ 206Pb | 1σ | 207Pb/ 235U | 1σ | 206Pb/ 238U | 1σ | |||
灰白色 中细粒 黑云母 二长花 岗岩 | PM10-3/1-12 | 0.057 02 | 0.001 08 | 0.580 37 | 0.008 22 | 0.073 82 | 0.000 93 | 492 | 43 | 465 | 5 | 459 | 6 | |
PM10-3/1-14 | 0.056 11 | 0.000 63 | 0.591 53 | 0.008 11 | 0.076 46 | 0.000 99 | 457 | 14 | 472 | 5 | 475 | 6 | ||
PM10-3/1-16 | 0.056 47 | 0.000 66 | 0.584 85 | 0.008 23 | 0.075 11 | 0.000 98 | 471 | 14 | 468 | 5 | 467 | 6 | ||
PM10-3/1-17 | 0.057 45 | 0.000 63 | 0.585 35 | 0.007 90 | 0.073 90 | 0.000 95 | 509 | 13 | 468 | 5 | 460 | 6 | ||
PM10-3/1-18 | 0.057 09 | 0.000 66 | 0.588 57 | 0.008 20 | 0.074 77 | 0.000 97 | 495 | 14 | 470 | 5 | 465 | 6 | ||
PM10-3/1-19 | 0.056 74 | 0.000 75 | 0.573 27 | 0.008 75 | 0.073 27 | 0.000 96 | 481 | 15 | 460 | 6 | 456 | 6 | ||
PM10-3/1-20 | 0.057 04 | 0.000 70 | 0.577 26 | 0.008 39 | 0.073 40 | 0.000 96 | 493 | 14 | 463 | 5 | 457 | 6 | ||
灰白色 中细粒 石英闪 长岩 | PM7-3/1-02 | 0.056 43 | 0.001 61 | 0.583 70 | 0.014 76 | 0.075 01 | 0.001 00 | 470 | 65 | 467 | 9 | 466 | 6 | |
PM7-3/1-03 | 0.055 30 | 0.000 93 | 0.567 66 | 0.010 36 | 0.074 45 | 0.001 01 | 424 | 19 | 457 | 7 | 463 | 6 | ||
PM7-3/1-04 | 0.055 99 | 0.000 70 | 0.568 56 | 0.008 39 | 0.073 65 | 0.000 97 | 452 | 15 | 457 | 5 | 458 | 6 | ||
PM7-3/1-05 | 0.056 50 | 0.000 81 | 0.576 21 | 0.009 28 | 0.073 97 | 0.000 98 | 472 | 16 | 462 | 6 | 460 | 6 | ||
PM7-3/1-06 | 0.055 81 | 0.000 74 | 0.576 18 | 0.008 81 | 0.074 88 | 0.000 99 | 445 | 15 | 462 | 6 | 465 | 6 | ||
PM7-3/1-07 | 0.055 80 | 0.000 84 | 0.575 07 | 0.009 63 | 0.074 75 | 0.001 00 | 444 | 17 | 461 | 6 | 465 | 6 | ||
PM7-3/1-08 | 0.056 60 | 0.000 94 | 0.574 49 | 0.010 39 | 0.073 62 | 0.001 00 | 476 | 19 | 461 | 7 | 458 | 6 | ||
PM7-3/1-09 | 0.056 76 | 0.000 73 | 0.579 52 | 0.008 67 | 0.074 06 | 0.000 97 | 482 | 15 | 464 | 6 | 461 | 6 | ||
PM7-3/1-10 | 0.055 87 | 0.000 88 | 0.581 63 | 0.010 07 | 0.075 51 | 0.001 02 | 447 | 18 | 466 | 6 | 469 | 6 | ||
PM7-3/1-11 | 0.055 63 | 0.000 74 | 0.564 57 | 0.008 74 | 0.073 61 | 0.000 98 | 438 | 15 | 454 | 6 | 458 | 6 | ||
PM7-3/1-12 | 0.055 87 | 0.000 75 | 0.573 42 | 0.008 92 | 0.074 43 | 0.000 99 | 447 | 16 | 460 | 6 | 463 | 6 | ||
PM7-3/1-13 | 0.056 45 | 0.000 81 | 0.585 27 | 0.009 53 | 0.075 20 | 0.001 01 | 470 | 16 | 468 | 6 | 467 | 6 | ||
PM7-3/1-15 | 0.056 45 | 0.000 76 | 0.570 08 | 0.008 84 | 0.073 25 | 0.000 98 | 470 | 15 | 458 | 6 | 456 | 6 | ||
PM7-3/1-16 | 0.055 58 | 0.000 87 | 0.575 56 | 0.009 96 | 0.075 10 | 0.001 02 | 436 | 18 | 462 | 6 | 467 | 6 | ||
PM7-3/1-17 | 0.055 12 | 0.000 79 | 0.567 46 | 0.009 25 | 0.074 67 | 0.001 00 | 417 | 17 | 456 | 6 | 464 | 6 | ||
PM7-3/1-18 | 0.055 92 | 0.000 79 | 0.577 09 | 0.009 31 | 0.074 85 | 0.001 00 | 449 | 16 | 463 | 6 | 465 | 6 | ||
PM7-3/1-19 | 0.055 72 | 0.000 76 | 0.582 05 | 0.009 13 | 0.075 76 | 0.001 01 | 441 | 16 | 466 | 6 | 471 | 6 | ||
PM7-3/1-20 | 0.054 71 | 0.000 78 | 0.563 83 | 0.009 10 | 0.074 74 | 0.001 00 | 400 | 16 | 454 | 6 | 465 | 6 | ||
灰白色 中粗粒 二长花 岗岩 | PM4-2/1-01 | 0.057 13 | 0.000 76 | 0.586 50 | 0.009 03 | 0.074 47 | 0.000 99 | 497 | 15 | 469 | 6 | 463 | 6 | |
PM4-2/1-02 | 0.056 75 | 0.000 79 | 0.604 91 | 0.009 62 | 0.077 31 | 0.001 04 | 482 | 16 | 480 | 6 | 480 | 6 | ||
PM4-2/1-03 | 0.059 52 | 0.000 71 | 0.617 25 | 0.008 83 | 0.075 22 | 0.000 99 | 586 | 14 | 488 | 6 | 468 | 6 | ||
PM4-2/1-04 | 0.058 12 | 0.000 85 | 0.624 93 | 0.010 24 | 0.078 00 | 0.001 05 | 534 | 16 | 493 | 6 | 484 | 6 | ||
PM4-2/1-08 | 0.056 59 | 0.000 70 | 0.585 75 | 0.008 62 | 0.075 07 | 0.000 99 | 476 | 15 | 468 | 6 | 467 | 6 | ||
PM4-2/1-10 | 0.058 22 | 0.000 80 | 0.611 57 | 0.009 64 | 0.076 20 | 0.001 02 | 538 | 15 | 485 | 6 | 473 | 6 | ||
PM4-2/1-12 | 0.055 07 | 0.000 75 | 0.571 32 | 0.008 97 | 0.075 25 | 0.001 01 | 415 | 16 | 459 | 6 | 468 | 6 | ||
PM4-2/1-13 | 0.055 49 | 0.000 77 | 0.577 42 | 0.009 19 | 0.075 48 | 0.001 01 | 432 | 16 | 463 | 6 | 469 | 6 |
Table 3 LA-ICP-MS zircon U-Pb dating results for the Ordovician intrusive rocks at Bayinbuluk
样品 岩性 | 测点编号 | 比值 | 年龄/Ma | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 207Pb/ 206Pb | 1σ | 207Pb/ 235U | 1σ | 206Pb/ 238U | 1σ | |||
灰白色 中细粒 黑云母 二长花 岗岩 | PM10-3/1-12 | 0.057 02 | 0.001 08 | 0.580 37 | 0.008 22 | 0.073 82 | 0.000 93 | 492 | 43 | 465 | 5 | 459 | 6 | |
PM10-3/1-14 | 0.056 11 | 0.000 63 | 0.591 53 | 0.008 11 | 0.076 46 | 0.000 99 | 457 | 14 | 472 | 5 | 475 | 6 | ||
PM10-3/1-16 | 0.056 47 | 0.000 66 | 0.584 85 | 0.008 23 | 0.075 11 | 0.000 98 | 471 | 14 | 468 | 5 | 467 | 6 | ||
PM10-3/1-17 | 0.057 45 | 0.000 63 | 0.585 35 | 0.007 90 | 0.073 90 | 0.000 95 | 509 | 13 | 468 | 5 | 460 | 6 | ||
PM10-3/1-18 | 0.057 09 | 0.000 66 | 0.588 57 | 0.008 20 | 0.074 77 | 0.000 97 | 495 | 14 | 470 | 5 | 465 | 6 | ||
PM10-3/1-19 | 0.056 74 | 0.000 75 | 0.573 27 | 0.008 75 | 0.073 27 | 0.000 96 | 481 | 15 | 460 | 6 | 456 | 6 | ||
PM10-3/1-20 | 0.057 04 | 0.000 70 | 0.577 26 | 0.008 39 | 0.073 40 | 0.000 96 | 493 | 14 | 463 | 5 | 457 | 6 | ||
灰白色 中细粒 石英闪 长岩 | PM7-3/1-02 | 0.056 43 | 0.001 61 | 0.583 70 | 0.014 76 | 0.075 01 | 0.001 00 | 470 | 65 | 467 | 9 | 466 | 6 | |
PM7-3/1-03 | 0.055 30 | 0.000 93 | 0.567 66 | 0.010 36 | 0.074 45 | 0.001 01 | 424 | 19 | 457 | 7 | 463 | 6 | ||
PM7-3/1-04 | 0.055 99 | 0.000 70 | 0.568 56 | 0.008 39 | 0.073 65 | 0.000 97 | 452 | 15 | 457 | 5 | 458 | 6 | ||
PM7-3/1-05 | 0.056 50 | 0.000 81 | 0.576 21 | 0.009 28 | 0.073 97 | 0.000 98 | 472 | 16 | 462 | 6 | 460 | 6 | ||
PM7-3/1-06 | 0.055 81 | 0.000 74 | 0.576 18 | 0.008 81 | 0.074 88 | 0.000 99 | 445 | 15 | 462 | 6 | 465 | 6 | ||
PM7-3/1-07 | 0.055 80 | 0.000 84 | 0.575 07 | 0.009 63 | 0.074 75 | 0.001 00 | 444 | 17 | 461 | 6 | 465 | 6 | ||
PM7-3/1-08 | 0.056 60 | 0.000 94 | 0.574 49 | 0.010 39 | 0.073 62 | 0.001 00 | 476 | 19 | 461 | 7 | 458 | 6 | ||
PM7-3/1-09 | 0.056 76 | 0.000 73 | 0.579 52 | 0.008 67 | 0.074 06 | 0.000 97 | 482 | 15 | 464 | 6 | 461 | 6 | ||
PM7-3/1-10 | 0.055 87 | 0.000 88 | 0.581 63 | 0.010 07 | 0.075 51 | 0.001 02 | 447 | 18 | 466 | 6 | 469 | 6 | ||
PM7-3/1-11 | 0.055 63 | 0.000 74 | 0.564 57 | 0.008 74 | 0.073 61 | 0.000 98 | 438 | 15 | 454 | 6 | 458 | 6 | ||
PM7-3/1-12 | 0.055 87 | 0.000 75 | 0.573 42 | 0.008 92 | 0.074 43 | 0.000 99 | 447 | 16 | 460 | 6 | 463 | 6 | ||
PM7-3/1-13 | 0.056 45 | 0.000 81 | 0.585 27 | 0.009 53 | 0.075 20 | 0.001 01 | 470 | 16 | 468 | 6 | 467 | 6 | ||
PM7-3/1-15 | 0.056 45 | 0.000 76 | 0.570 08 | 0.008 84 | 0.073 25 | 0.000 98 | 470 | 15 | 458 | 6 | 456 | 6 | ||
PM7-3/1-16 | 0.055 58 | 0.000 87 | 0.575 56 | 0.009 96 | 0.075 10 | 0.001 02 | 436 | 18 | 462 | 6 | 467 | 6 | ||
PM7-3/1-17 | 0.055 12 | 0.000 79 | 0.567 46 | 0.009 25 | 0.074 67 | 0.001 00 | 417 | 17 | 456 | 6 | 464 | 6 | ||
PM7-3/1-18 | 0.055 92 | 0.000 79 | 0.577 09 | 0.009 31 | 0.074 85 | 0.001 00 | 449 | 16 | 463 | 6 | 465 | 6 | ||
PM7-3/1-19 | 0.055 72 | 0.000 76 | 0.582 05 | 0.009 13 | 0.075 76 | 0.001 01 | 441 | 16 | 466 | 6 | 471 | 6 | ||
PM7-3/1-20 | 0.054 71 | 0.000 78 | 0.563 83 | 0.009 10 | 0.074 74 | 0.001 00 | 400 | 16 | 454 | 6 | 465 | 6 | ||
灰白色 中粗粒 二长花 岗岩 | PM4-2/1-01 | 0.057 13 | 0.000 76 | 0.586 50 | 0.009 03 | 0.074 47 | 0.000 99 | 497 | 15 | 469 | 6 | 463 | 6 | |
PM4-2/1-02 | 0.056 75 | 0.000 79 | 0.604 91 | 0.009 62 | 0.077 31 | 0.001 04 | 482 | 16 | 480 | 6 | 480 | 6 | ||
PM4-2/1-03 | 0.059 52 | 0.000 71 | 0.617 25 | 0.008 83 | 0.075 22 | 0.000 99 | 586 | 14 | 488 | 6 | 468 | 6 | ||
PM4-2/1-04 | 0.058 12 | 0.000 85 | 0.624 93 | 0.010 24 | 0.078 00 | 0.001 05 | 534 | 16 | 493 | 6 | 484 | 6 | ||
PM4-2/1-08 | 0.056 59 | 0.000 70 | 0.585 75 | 0.008 62 | 0.075 07 | 0.000 99 | 476 | 15 | 468 | 6 | 467 | 6 | ||
PM4-2/1-10 | 0.058 22 | 0.000 80 | 0.611 57 | 0.009 64 | 0.076 20 | 0.001 02 | 538 | 15 | 485 | 6 | 473 | 6 | ||
PM4-2/1-12 | 0.055 07 | 0.000 75 | 0.571 32 | 0.008 97 | 0.075 25 | 0.001 01 | 415 | 16 | 459 | 6 | 468 | 6 | ||
PM4-2/1-13 | 0.055 49 | 0.000 77 | 0.577 42 | 0.009 19 | 0.075 48 | 0.001 01 | 432 | 16 | 463 | 6 | 469 | 6 |
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