测点 | 232Th | 238U | 232Th/ 238U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | 207Pb/206Pb | 207Pb/235U | 206Pb/238U | 谐和度 | ||||||
(10−6) | (10−6) | Ratio | Ratio | 1sigma | Ratio | 1sigma | Ratio | 1sigma | Age (Ma) 1sigma | Age (Ma) 1sigma | Age (Ma) 1sigma | |||||
4.1 | 193.27 | 188.47 | 1.03 | 0.05337 | 0.00778 | 0.26188 | 0.03712 | 0.03557 | 0.00124 | 344.7 | 300.0 | 236.2 | 30.0 | 225.3 | 7.7 | 105 |
4.2 | 86.26 | 82.89 | 1.04 | 0.05246 | 0.00251 | 0.25145 | 0.01090 | 0.03475 | 0.00043 | 305.7 | 105.5 | 227.8 | 8.9 | 220.2 | 2.7 | 104 |
4.3 | 132.59 | 120.23 | 1.10 | 0.04988 | 0.00200 | 0.23879 | 0.00834 | 0.03471 | 0.00037 | 189.4 | 90.6 | 217.4 | 6.8 | 220 | 2.3 | 99 |
4.4 | 185.32 | 203.46 | 0.91 | 0.05308 | 0.00245 | 0.25232 | 0.01043 | 0.03447 | 0.00043 | 332 | 101.1 | 228.5 | 8.5 | 218.5 | 2.7 | 105 |
4.5 | 71.38 | 89.21 | 0.80 | 0.05323 | 0.00253 | 0.25633 | 0.01101 | 0.03492 | 0.00045 | 338.5 | 104.1 | 231.7 | 8.9 | 221.3 | 2.8 | 105 |
4.6 | 106.47 | 100.42 | 1.06 | 0.05042 | 0.00226 | 0.24299 | 0.00979 | 0.03494 | 0.00039 | 214.4 | 100.8 | 220.9 | 8.0 | 221.4 | 2.5 | 100 |
4.7 | 441.26 | 567.74 | 0.78 | 0.05221 | 0.00138 | 0.25656 | 0.00472 | 0.03563 | 0.00033 | 294.6 | 59.2 | 231.9 | 3.8 | 225.7 | 2.0 | 103 |
4.8 | 129.04 | 131.24 | 0.98 | 0.05280 | 0.00200 | 0.25496 | 0.00825 | 0.03501 | 0.00038 | 320.4 | 83.8 | 230.6 | 6.7 | 221.8 | 2.4 | 104 |
4.9 | 160.63 | 152.37 | 1.05 | 0.04655 | 0.00195 | 0.22333 | 0.00824 | 0.03479 | 0.00038 | 26.2 | 97.4 | 204.7 | 6.8 | 220.4 | 2.4 | 93 |
4.10 | 138.16 | 252.99 | 0.55 | 0.05322 | 0.00285 | 0.25522 | 0.01256 | 0.03477 | 0.0005 | 338.2 | 116.7 | 230.8 | 10.2 | 220.4 | 3.1 | 105 |
4.11 | 602.29 | 736.49 | 0.82 | 0.05209 | 0.00123 | 0.24908 | 0.00353 | 0.03467 | 0.00031 | 289.5 | 53.0 | 225.8 | 2.9 | 219.7 | 1.9 | 103 |
4.12 | 523.85 | 252.87 | 2.07 | 0.05002 | 0.00358 | 0.23922 | 0.0162 | 0.03468 | 0.00061 | 196.1 | 158.1 | 217.8 | 13.3 | 219.8 | 3.8 | 99 |
4.13 | 121.19 | 100.01 | 1.21 | 0.05159 | 0.00234 | 0.25009 | 0.01018 | 0.03515 | 0.00044 | 267.2 | 100.9 | 226.6 | 8.3 | 222.7 | 2.7 | 102 |
4.14 | 122.38 | 122.28 | 1.00 | 0.04901 | 0.00183 | 0.23763 | 0.00757 | 0.03516 | 0.00037 | 148.4 | 85.2 | 216.5 | 6.2 | 222.8 | 2.3 | 97 |
4.15 | 100.84 | 77.48 | 1.30 | 0.05023 | 0.00217 | 0.24439 | 0.00939 | 0.03528 | 0.00042 | 205.4 | 97.5 | 222 | 7.7 | 223.5 | 2.6 | 99 |
4.16 | 79.97 | 69.55 | 1.15 | 0.05006 | 0.00369 | 0.23864 | 0.01675 | 0.03457 | 0.0006 | 197.9 | 162.7 | 217.3 | 13.7 | 219.1 | 3.7 | 99 |
4.17 | 148.45 | 202.39 | 0.73 | 0.05452 | 0.00185 | 0.26495 | 0.00736 | 0.03524 | 0.00038 | 392.4 | 73.6 | 238.6 | 5.9 | 223.3 | 2.4 | 107 |
4.18 | 216.91 | 262.88 | 0.83 | 0.05167 | 0.00139 | 0.25116 | 0.00479 | 0.03525 | 0.00033 | 270.7 | 60.4 | 227.5 | 3.9 | 223.3 | 2.1 | 102 |
4.19 | 203.12 | 248.97 | 0.82 | 0.05003 | 0.00169 | 0.24272 | 0.00672 | 0.03518 | 0.00037 | 196.4 | 76.6 | 220.6 | 5.5 | 222.9 | 2.3 | 99 |
4.20 | 434.09 | 232.43 | 1.87 | 0.04694 | 0.00183 | 0.22856 | 0.00773 | 0.03531 | 0.00039 | 45.8 | 91.0 | 209 | 6.4 | 223.7 | 2.44 | 93 |
4.21 | 204.25 | 147.79 | 1.38 | 0.05014 | 0.00219 | 0.24290 | 0.00945 | 0.03513 | 0.00042 | 201.3 | 98.5 | 220.8 | 7.7 | 222.6 | 2.64 | 99 |
4.22 | 77.66 | 82.92 | 0.94 | 0.05144 | 0.00389 | 0.24985 | 0.01797 | 0.03522 | 0.00066 | 260.5 | 164.8 | 226.5 | 14.6 | 223.2 | 4.12 | 102 |
4.23 | 141.32 | 257.02 | 0.55 | 0.05235 | 0.00175 | 0.25288 | 0.00693 | 0.03503 | 0.00037 | 300.7 | 74.5 | 228.9 | 5.6 | 221.9 | 2.31 | 103 |
4.24 | 112.66 | 127.48 | 0.88 | 0.05031 | 0.00204 | 0.24513 | 0.00867 | 0.03533 | 0.00042 | 209.4 | 91.3 | 222.6 | 7.1 | 223.8 | 2.6 | 100 |