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2 临沧花岗岩带磷灰石(U-Th-Sm)/He定年结果[58]
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Table 2 The apatite (U-Th-Sm)/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 | Sm/×10-6 | eU1/×10-6 | [4He] /(nmol/g) | 半径 /μm | Ft2 | 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 | 44.6 | 34.1 | 0.76 | 108.1 | 52.6 | 4.1 | 53.88 | 0.72 | 14.1 | 19.6 | 1.2 | 19.6±2.4 | YN4193-1 | 130.4 | 9.0 | 0.07 | 79.8 | 132.5 | 8.3 | 62.74 | 0.77 | 11.5 | 15.0 | 0.9 | 15.5±1.1 | YN4193-2 | 148.0 | 17.4 | 0.12 | 83.9 | 152.1 | 10.5 | 74.20 | 0.80 | 12.7 | 15.8 | 1.0 | YN4193-3 | 169.5 | 20.0 | 0.12 | 90.8 | 174.2 | 10.8 | 52.44 | 0.72 | 11.5 | 15.8 | 0.9 | YN4194-1 | 209.6 | 22.4 | 0.11 | 92.7 | 214.9 | 15.5 | 61.95 | 0.76 | 13.3 | 17.4 | 1.0 | 16.9±1.1 | YN4194-2 | 201.9 | 24.0 | 0.12 | 105.6 | 207.5 | 16.1 | 63.74 | 0.77 | 14.4 | 18.6 | 1.1 | YN4194-3 | 173.6 | 16.1 | 0.09 | 77.3 | 177.3 | 10.9 | 55.38 | 0.74 | 11.4 | 15.4 | 0.9 | YN4197-1 | 199.9 | 17.6 | 0.09 | 92.7 | 204.0 | 13.2 | 39.02 | 0.64 | 11.9 | 18.6 | 1.1 | 19.6±1.3 | YN4197-2 | 119.8 | 8.6 | 0.07 | 73.0 | 121.8 | 7.8 | 32.99 | 0.59 | 11.8 | 20.1 | 1.2 | YN4197-3 | 87.5 | 6.4 | 0.07 | 49.9 | 89.0 | 7.3 | 57.02 | 0.75 | 15.2 | 20.4 | 1.2 | YN41910-1 | 387.2 | 38.2 | 0.10 | 125.1 | 396.2 | 56.0 | 34.31 | 0.60 | 26.1 | 43.6 | 2.6 | 37.9±2.6 | YN41910-2 | 312.7 | 37.0 | 0.12 | 110.4 | 321.4 | 35.8 | 32.65 | 0.58 | 20.6 | 35.5 | 2.1 | YN41910-3 | 252.9 | 23.1 | 0.09 | 92.5 | 258.3 | 30.2 | 33.80 | 0.59 | 21.6 | 36.4 | 2.2 | YN41911-1 | 164.2 | 8.1 | 0.05 | 77.7 | 166.1 | 14.7 | 40.34 | 0.65 | 16.3 | 24.9 | 1.5 | 26.9±2.3 | YN41911-2 | 46.2 | 2.6 | 0.06 | 50.2 | 46.9 | 5.2 | 45.43 | 0.69 | 20.5 | 29.8 | 1.8 | 北侧剖面 样品 | YN4201-1 | 47.9 | 46.3 | 0.96 | 111.1 | 58.8 | 7.9 | 33.25 | 0.57 | 24.4 | 43.0 | 2.6 | 43.0±5.2 | YN4202-1 | 263.6 | 23.8 | 0.09 | 114.2 | 269.2 | 35.9 | 35.61 | 0.61 | 24.6 | 40.2 | 2.4 | 40.2±4.8 | YN4203-1 | 215.6 | 18.6 | 0.09 | 88.9 | 220.0 | 24.9 | 50.01 | 0.71 | 20.9 | 29.2 | 1.8 | 31.0±2.2 | YN4203-2 | 153.4 | 8.9 | 0.06 | 65.8 | 155.5 | 18.8 | 43.72 | 0.68 | 22.4 | 33.0 | 2.0 | YN4203-3 | 387.8 | 33.2 | 0.09 | 108.9 | 395.6 | 47.7 | 49.86 | 0.71 | 22.3 | 31.3 | 1.9 | YN4208-1 | 41.4 | 24.5 | 0.59 | 87.8 | 47.2 | 7.7 | 54.91 | 0.73 | 29.6 | 40.7 | 2.4 | 35.8±2.5 | YN4208-2 | 27.5 | 10.6 | 0.39 | 83.7 | 30.0 | 4.1 | 65.53 | 0.77 | 24.5 | 31.8 | 1.9 | YN4208-3 | 34.4 | 7.5 | 0.22 | 67.6 | 36.2 | 5.9 | 73.46 | 0.80 | 29.6 | 37.2 | 2.2 | YN4204-1 | 63.9 | 26.9 | 0.42 | 114.6 | 70.2 | 6.3 | 27.34 | 0.50 | 16.3 | 32.5 | 1.9 | 32.5±3.8 | YN4205-1 | 49.1 | 7.2 | 0.15 | 80.0 | 50.8 | 4.9 | 46.78 | 0.69 | 17.7 | 25.5 | 1.5 | 25.5±3.0 | YN4206-1 | 150.7 | 11.3 | 0.08 | 67.1 | 153.4 | 22.3 | 42.41 | 0.67 | 26.8 | 40.2 | 2.4 | 41.9±2.9 | YN4206-2 | 104.8 | 6.6 | 0.06 | 52.4 | 106.4 | 19.2 | 67.16 | 0.78 | 33.3 | 42.6 | 2.6 | YN4206-3 | 173.5 | 14.7 | 0.08 | 70.8 | 177.0 | 30.2 | 53.24 | 0.73 | 31.5 | 43.1 | 2.6 | YN4207-1 | 182.6 | 30.0 | 0.16 | 102.3 | 189.7 | 29.1 | 28.89 | 0.53 | 28.3 | 53.2 | 3.2 | 54.0±4.6 | YN4207-2 | 544.2 | 237.6 | 0.44 | 184.9 | 600.0 | 104.3 | 34.07 | 0.59 | 32.1 | 54.8 | 3.3 |
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