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
刘方斌, 聂军胜, 郑德文, 庞建章

The Cenozoic Exhumation History and Forcing Mechanism of SE Tibetan Plateau: A Case Study of the Lincang Granite Area
Fangbin LIU, Junsheng NIE, Dewen ZHENG, Jianzhang PANG
表2 临沧花岗岩带磷灰石(U-Th-Sm)/He定年结果[58]
Table 2 The apatite (U-Th-Sm)/He results of the Lincang granite belt [58]
样品位置样品编号U/×10-6Th/×10-6Th/USm/×10-6eU1/×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)

南侧剖面 样品YN4192-144.634.10.76108.152.64.153.880.7214.119.61.219.6±2.4
YN4193-1130.49.00.0779.8132.58.362.740.7711.515.00.915.5±1.1
YN4193-2148.017.40.1283.9152.110.574.200.8012.715.81.0
YN4193-3169.520.00.1290.8174.210.852.440.7211.515.80.9
YN4194-1209.622.40.1192.7214.915.561.950.7613.317.41.016.9±1.1
YN4194-2201.924.00.12105.6207.516.163.740.7714.418.61.1
YN4194-3173.616.10.0977.3177.310.955.380.7411.415.40.9
YN4197-1199.917.60.0992.7204.013.239.020.6411.918.61.119.6±1.3
YN4197-2119.88.60.0773.0121.87.832.990.5911.820.11.2
YN4197-387.56.40.0749.989.07.357.020.7515.220.41.2
YN41910-1387.238.20.10125.1396.256.034.310.6026.143.62.637.9±2.6
YN41910-2312.737.00.12110.4321.435.832.650.5820.635.52.1
YN41910-3252.923.10.0992.5258.330.233.800.5921.636.42.2
YN41911-1164.28.10.0577.7166.114.740.340.6516.324.91.526.9±2.3
YN41911-246.22.60.0650.246.95.245.430.6920.529.81.8
北侧剖面 样品YN4201-147.946.30.96111.158.87.933.250.5724.443.02.643.0±5.2
YN4202-1263.623.80.09114.2269.235.935.610.6124.640.22.440.2±4.8
YN4203-1215.618.60.0988.9220.024.950.010.7120.929.21.831.0±2.2
YN4203-2153.48.90.0665.8155.518.843.720.6822.433.02.0
YN4203-3387.833.20.09108.9395.647.749.860.7122.331.31.9
YN4208-141.424.50.5987.847.27.754.910.7329.640.72.435.8±2.5
YN4208-227.510.60.3983.730.04.165.530.7724.531.81.9
YN4208-334.47.50.2267.636.25.973.460.8029.637.22.2
YN4204-163.926.90.42114.670.26.327.340.5016.332.51.932.5±3.8
YN4205-149.17.20.1580.050.84.946.780.6917.725.51.525.5±3.0
YN4206-1150.711.30.0867.1153.422.342.410.6726.840.22.441.9±2.9
YN4206-2104.86.60.0652.4106.419.267.160.7833.342.62.6
YN4206-3173.514.70.0870.8177.030.253.240.7331.543.12.6
YN4207-1182.630.00.16102.3189.729.128.890.5328.353.23.254.0±4.6
YN4207-2544.2237.60.44184.9600.0104.334.070.5932.154.83.3