青藏高原东南缘新生代剥露历史及驱动机制探讨：以临沧花岗岩地区为例
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刘方斌, 聂军胜, 郑德文, 庞建章
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The Cenozoic Exhumation History and Forcing Mechanism of SE Tibetan Plateau： A Case Study of the Lincang Granite Area
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Fangbin LIU, Junsheng NIE, Dewen ZHENG, Jianzhang PANG
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表3 临沧花岗岩带锆石(U-Th)/He定年结果[58]
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Table 3 The zircon (U-Th)/He results of the Lincang granite belt [58]
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| 样品位置 | 样品编号 | U/×10-6 | Th/×10-6 | Th/U | eU/×10-6 | [4He]/ncc | 半径/μm | Ft | 原始年龄/Ma | 矫正年龄/Ma | 误差/ (Ma±1σ) | 平均年龄/ (Ma±2σ) |
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| 南侧剖面样品 | YN4192-1 | 1 303.2 | 202.2 | 0.16 | 1 350.8 | 10.708 | 63.90 | 0.79 | 26.7 | 34.0 | 0.6 | 36.5 ± 0.9 | | YN4192-2 | 1 151.4 | 174.9 | 0.15 | 1 192.5 | 27.068 | 78.10 | 0.82 | 31.4 | 38.3 | 1.7 | | YN4192-3 | 1 075.5 | 244.3 | 0.23 | 1 132.9 | 17.403 | 60.49 | 0.77 | 31.7 | 41.2 | 0.9 | | YN4192-4 | 1 250.3 | 361.3 | 0.29 | 1 335.2 | 12.994 | 59.85 | 0.77 | 28.2 | 36.6 | 0.8 | | YN4193-1 | 501.0 | 147.2 | 0.29 | 539.2 | 26.518 | 87.37 | 0.85 | 28.3 | 33.1 | 1.8 | 37.8 ± 1.7 | | YN4193-2 | 927.1 | 257.4 | 0.28 | 994.3 | 57.542 | 98.93 | 0.87 | 27.4 | 31.4 | 1.7 | | YN4193-3 | 730.3 | 209.7 | 0.29 | 784.9 | 58.711 | 89.27 | 0.86 | 37.5 | 43.7 | 2.4 | | YN4193-4 | 571.5 | 178.9 | 0.31 | 617.7 | 87.456 | 67.92 | 0.81 | 37.4 | 46.0 | 2.5 | | YN4193-5 | 564.3 | 135.7 | 0.24 | 600.3 | 84.213 | 86.22 | 0.85 | 36.8 | 43.2 | 2.3 | | YN4193-6 | 441.4 | 72.5 | 0.16 | 461.7 | 44.499 | 74.21 | 0.83 | 32.6 | 39.3 | 2.1 | | YN4194-1 | 290.0 | 49.1 | 0.17 | 303.6 | 13.492 | 55.76 | 0.77 | 33.7 | 43.6 | 2.4 | 41.0 ± 2.6 | | YN4194-2 | 2 084.4 | 166.1 | 0.08 | 2 138.6 | 73.573 | 70.38 | 0.82 | 30.3 | 37.0 | 2.0 | | YN4194-3 | 671.2 | 153.3 | 0.23 | 712.1 | 21.303 | 72.64 | 0.83 | 36.6 | 44.3 | 2.5 | | YN4195-1 | 1 912.5 | 152.8 | 0.08 | 1 948.4 | 38.221 | 77.63 | 0.82 | 30.1 | 36.7 | 0.8 | 36.0 ± 0.9 | | YN4195-2 | 1 284.9 | 169.8 | 0.13 | 1 324.8 | 54.238 | 97.15 | 0.85 | 31.2 | 36.6 | 1.6 | | YN4195-3 | 1 839.9 | 301.7 | 0.16 | 1 910.8 | 77.070 | 92.09 | 0.85 | 34.5 | 40.7 | 0.9 | | YN4195-4 | 1 636.7 | 237.5 | 0.15 | 1 692.5 | 26.939 | 72.71 | 0.81 | 22.9 | 28.4 | 1.8 | | YN4195-5 | 1 245.6 | 208.0 | 0.17 | 1 294.5 | 17.600 | 75.37 | 0.82 | 26.4 | 32.4 | 0.8 | | YN4196-1# | 649.7 | 138.2 | 0.21 | 682.1 | 45.551 | 105.00 | 0.86 | 43.0 | 49.7 | 1.0 | 38.4 ± 0.8 | | YN4196-2 | 1 088.3 | 134.9 | 0.12 | 1 120.0 | 54.256 | 105.53 | 0.87 | 33.5 | 38.6 | 0.7 | | YN4196-3 | 655.3 | 154.3 | 0.24 | 691.6 | 42.957 | 108.69 | 0.87 | 34.7 | 40.0 | 0.8 | | YN4196-4 | 361.5 | 71.2 | 0.20 | 378.2 | 12.209 | 88.61 | 0.84 | 32.6 | 38.8 | 0.7 | | YN4196-5 | 641.7 | 102.4 | 0.16 | 665.8 | 14.158 | 77.14 | 0.82 | 29.3 | 35.8 | 0.8 | | YN4197-1 | 1 260.8 | 168.4 | 0.13 | 1 309.5 | 40.031 | 66.71 | 0.81 | 35.9 | 44.3 | 2.4 | 37.2 ± 1.8 | | YN4197-2 | 970.1 | 107.5 | 0.11 | 1 002.4 | 27.887 | 73.68 | 0.83 | 33.5 | 40.4 | 2.2 | | YN4197-3 | 1 574.8 | 93.8 | 0.06 | 1 608.3 | 46.683 | 68.60 | 0.82 | 32.9 | 40.4 | 2.2 | | YN4197-4 | 852.8 | 77.7 | 0.09 | 877.2 | 17.026 | 57.63 | 0.78 | 26.7 | 34.2 | 1.8 | | YN4197-5 | 592.1 | 170.6 | 0.29 | 636.5 | 16.180 | 73.65 | 0.83 | 26.9 | 32.5 | 1.7 | | YN4199-1 | 856.9 | 229.6 | 0.27 | 910.9 | 21.594 | 76.42 | 0.82 | 40.1 | 49.1 | 1.8 | 41.9 ± 0.9 | | YN4199-2 | 801.6 | 103.1 | 0.13 | 825.8 | 26.545 | 81.90 | 0.83 | 32.4 | 39.2 | 0.8 | | YN4199-3 | 1 058.1 | 291.8 | 0.28 | 1 126.7 | 28.384 | 68.09 | 0.79 | 39.6 | 49.9 | 1.1 | | YN4199-4 | 564.1 | 668.6 | 1.19 | 721.2 | 16.968 | 72.27 | 0.80 | 33.7 | 42.1 | 0.7 | | YN4199-5 | 1 068.7 | 104.2 | 0.10 | 1 093.1 | 15.885 | 65.97 | 0.79 | 28.6 | 36.3 | 1.1 | | YN41910-1 | 626.0 | 94.4 | 0.15 | 648.2 | 17.071 | 68.14 | 0.79 | 45.8 | 57.6 | 2.5 | 60.4 ± 1.4 | | YN41910-2 | 568.9 | 93.8 | 0.16 | 590.9 | 70.984 | 113.66 | 0.87 | 54.1 | 61.9 | 1.2 | | YN41910-3 | 585.3 | 76.9 | 0.13 | 603.4 | 36.143 | 80.76 | 0.82 | 47.2 | 57.3 | 1.3 | | YN41910-4 | 447.9 | 65.3 | 0.15 | 463.2 | 17.599 | 83.16 | 0.83 | 47.8 | 57.6 | 2.4 | | YN41910-5 | 739.4 | 60.0 | 0.08 | 753.5 | 38.027 | 92.86 | 0.85 | 55.2 | 65.0 | 1.7 | 52.7 ± 2.9 | | YN41911-1 | 894.6 | 135.9 | 0.15 | 933.0 | 20.068 | 53.66 | 0.76 | 38.4 | 50.4 | 2.8 | | YN41911-2 | 505.0 | 142.6 | 0.28 | 542.2 | 6.008 | 50.79 | 0.75 | 36.1 | 48.2 | 2.6 | | YN41911-3 | 353.2 | 162.1 | 0.46 | 393.8 | 5.673 | 49.81 | 0.74 | 40.2 | 54.0 | 2.9 | | YN41911-4 | 437.8 | 298.6 | 0.68 | 511 | 8.088 | 54.44 | 0.77 | 47.5 | 62.0 | 3.4 | | YN41912-1 | 386.7 | 112.6 | 0.29 | 413.1 | 11.863 | 72.41 | 0.80 | 37.0 | 46.0 | 2.0 | 49.4 ± 1.4 | | YN41912-2# | 854.5 | 257.9 | 0.30 | 915.1 | 32.106 | 64.86 | 0.78 | 58.1 | 74.2 | 1.9 | | YN41912-3 | 243.4 | 22.9 | 0.09 | 248.7 | 6.426 | 77.42 | 0.82 | 40.1 | 48.9 | 2.1 | | YN41912-4 | 316.7 | 78.0 | 0.25 | 335.0 | 19.659 | 89.79 | 0.84 | 42.5 | 50.6 | 1.1 | | YN41912-5 | 780.2 | 118.8 | 0.15 | 808.1 | 17.192 | 72.51 | 0.81 | 40.0 | 49.4 | 1.2 | | 北侧剖面样品 | YN4201-1 | 1 101.2 | 150.2 | 0.14 | 1 136.5 | 20.364 | 63.36 | 0.78 | 53.7 | 68.5 | 1.4 | 64.3 ± 1.4 | | YN4201-2 | 294.0 | 56.8 | 0.19 | 307.4 | 27.283 | 107.81 | 0.87 | 58.5 | 67.3 | 1.3 | | YN4201-3 | 865.3 | 411.7 | 0.48 | 962.1 | 27.869 | 75.32 | 0.81 | 47.4 | 58.3 | 1.2 | | YN4201-4 | 1 053.8 | 211.7 | 0.20 | 1 103.6 | 30.307 | 69.15 | 0.80 | 51.7 | 64.7 | 1.8 | | YN4202-1 | 758.4 | 144.6 | 0.19 | 792.4 | 41.863 | 76.61 | 0.82 | 53.8 | 66.0 | 1.3 | 60.9 ± 1.3 | | YN4202-2 | 920.7 | 53.3 | 0.06 | 933.2 | 25.210 | 73.93 | 0.81 | 45.6 | 56.1 | 1.1 | | YN4202-3 | 669.8 | 202.5 | 0.30 | 717.4 | 20.376 | 70.32 | 0.80 | 59.3 | 73.9 | 3.1 | | YN4202-4 | 2 721.3 | 922.7 | 0.34 | 2 938.2 | 150.722 | 73.21 | 0.81 | 56.1 | 69.7 | 1.7 | | YN4202-5 | 796.5 | 58.4 | 0.07 | 810.2 | 18.849 | 67.22 | 0.79 | 43.9 | 55.4 | 1.2 | | YN4203-1 | 1 135.3 | 138.0 | 0.12 | 1 167.7 | 49.135 | 66.98 | 0.79 | 69.4 | 87.7 | 1.7 | 73.1 ± 1.6 | | YN4203-2 | 583.3 | 131.6 | 0.23 | 614.3 | 34.277 | 80.92 | 0.83 | 72.1 | 87.3 | 2.5 | | YN4203-3 | 1 276.5 | 60.9 | 0.05 | 1 290.8 | 28.953 | 60.45 | 0.77 | 50.8 | 65.9 | 1.5 | | YN4203-4 | 1 203.0 | 245.4 | 0.20 | 1 260.6 | 20.485 | 65.46 | 0.79 | 48.5 | 61.4 | 1.5 | | YN4203-5 | 2 495.7 | 335.5 | 0.13 | 2 574.5 | 125.918 | 74.58 | 0.81 | 62.7 | 77.3 | 2.2 | | YN4204-1 | 1 235.7 | 106.0 | 0.09 | 1 260.6 | 59.999 | 81.47 | 0.83 | 57.2 | 69.1 | 1.6 | 70.1 ± 1.5 | | YN4204-2 | 1 062.1 | 131.0 | 0.12 | 1 092.9 | 34.293 | 69.03 | 0.80 | 45.5 | 74.4 | 1.7 | | YN4204-3 | 583.3 | 118.7 | 0.20 | 611.2 | 22.788 | 75.53 | 0.81 | 59.4 | 63.7 | 1.3 | | YN4204-4 | 636.9 | 228.1 | 0.36 | 690.5 | 44.522 | 87.16 | 0.84 | 51.8 | 77.7 | 1.7 | | YN4205-1 | 1 989.6 | 396.0 | 0.20 | 2 082.7 | 115.749 | 84.60 | 0.83 | 66.7 | 80.0 | 0.9 | 81.7 ± 1.3 | | YN4205-2 | 753.5 | 265.8 | 0.35 | 816.0 | 65.111 | 95.12 | 0.85 | 70.1 | 82.4 | 1.9 | | YN4205-3 | 745.6 | 210.5 | 0.28 | 795.1 | 77.354 | 104.14 | 0.86 | 70.5 | 81.7 | 1.6 | | YN4205-4 | 638.0 | 219.8 | 0.34 | 689.7 | 35.004 | 83.34 | 0.83 | 66.9 | 80.5 | 2.2 | | YN4205-5 | 973.6 | 372.4 | 0.38 | 1 061.2 | 67.565 | 85.07 | 0.83 | 75.9 | 91.0 | 2.1 | | YN4207-1# | 1 526.1 | 149.3 | 0.10 | 1 561.1 | 24.707 | 60.61 | 0.77 | 47.3 | 61.1 | 1.2 | 92.1 ± 3.5 | | YN4207-2 | 836.0 | 142.0 | 0.17 | 869.4 | 54.263 | 87.89 | 0.84 | 74.0 | 88.0 | 2.5 | | YN4207-3 | 1 418.7 | 235.3 | 0.17 | 1 474.0 | 101.849 | 77.23 | 0.82 | 78.3 | 95.8 | 2.4 | | YN4207-4# | 3 765.9 | 653.8 | 0.17 | 3 919.5 | 54.291 | 69.69 | 0.80 | 23.5 | 29.5 | 1.0 |
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