Skip to main content

Table 5 40Ar/39Ar age spectrum data for aliquots of representative samples

From: Improvement of 40Ar/39Ar age determinations for Quaternary basaltic rocks by eliminating the peak suppression effect

 WattCa/KCl/K36Ar/39Ar%36Ar(Ca)40Ar*/39ArMol39Ar(× 10−16)% stepCum %%40Ar*Age (Ka)± Age
141006-1, Run ID# 689-01 (J = 0.0002755 ± 0.0000008):
*689-01A0.32.5430.1410.0027912.31.00680.00764.44.458.250098
*689-01B0.81.810-0.0080.0009924.71.03560.070940.745.182.551511
*689-01C1.23.183-0.0220.0013731.51.03380.039622.767.878.951418
*689-01D1.78.023-0.0240.0024744.01.11250.01669.577.373.155342
*689-01E2.56.900-0.0280.0025336.91.02140.028316.293.568.450829
*689-01F3.517.2150.2320.0041755.81.64780.00372.195.775.1819218
*689-01G4.013.1510.0390.0055631.90.69830.00563.298.938.3347119
*689-01H4.712.7110.3640.022897.50.26350.00201.11004131342
Integrated Age=          51313
(*) Plateau Age =          5159
141006-1, Run ID# 689-02 (J = 0.0002755 ± 0.0000008):
*689-02A0.32.9580.2470.0022118.11.03150.00804.34.365.951387
*689-02B0.81.8120.0010.0009825.01.05130.082344.448.882.95229
*689-02C1.22.614− 0.0240.0012229.01.05650.036819.968.780.552519
*689-02D1.75.6880.0090.0020637.41.05810.03892189.773.552624
*689-02E2.512.085− 0.1590.0045236.11.07970.00975.394.955.753774
*689-02F3.512.4510.0030.0050633.21.22640.00532.997.855609132
*689-02G4.013.2290.0650.0054632.81.24110.00402.210053.2617181
Integrated Age =          52812
(*) Plateau Age =          5248
141006-1, Run ID# 689-03 (J = 0.0002755 ± 0.0000008):
689-03A0.35.5590.9930.0071210.51.01340.00250.50.535.1504249
689-03B0.62.3230.0310.0028511.00.89720.04018.58.554.544618
*689-03C1.11.699− 0.0280.0012318.71.04870.111823.832.3785217
*689-03D1.72.356− 0.0030.0014721.61.06260.146231.163.575.75286
*689-03E2.54.6850.0000.0019732.21.05090.082817.681.172.752211
*689-03F3.56.9400.0040.0025137.41.02040.064513.794.868.750713
*689-03G4.09.741− 0.1280.0033539.31.10820.0142397.864.755148
*689-03H4.614.5800.0950.0043245.61.09310.01032.21006154368
Integrated Age =         5165
(*) Plateau Age =         5234
141006-2A, Run ID# 690-01 (J = 0.000273 ± 0.0000008):
690-01A0.32.3420.1500.003519.0-0.28830.00563.33.3-44-142167
*690-01B0.82.1000.0030.0009330.60.38480.058634.237.566.919016
*690-01C1.22.4070.0110.0011628.10.38140.043725.663.160.818815
*690-01D1.73.4710.0490.0015131.10.40600.036421.384.45720018
*690-01E2.58.860− 0.0130.0034135.10.39060.01347.992.237.319256
*690-01F3.511.8860.1320.0030952.00.44370.00945.597.750.221977
*690-01G4.016.954− 0.0500.0043452.80.14730.00402.310019.473145
690-01H4.717.297− 1.3710.0051045.9− 0.08250.00130.8100− 10.9− 41422
Integrated Age =          17913
(*) Plateau Age =       96.7  1929
141006-2A, Run ID# 690-02 (J = 0.000273 ± 0.0000008):
*690-02A0.32.8320.0740.0021517.80.40070.00553.63.643.5197116
*690-02B0.82.5630.0020.0011729.50.35550.04392932.659.317515
*690-02C1.22.487− 0.0200.0010432.20.39500.041427.359.965.419517
*690-02D1.74.2890.0140.0019729.40.32860.038525.485.344.416223
*690-02E2.511.130− 0.2900.0044034.20.20720.01127.492.619.310268
*690-02F3.514.029− 0.3060.0048938.80.28040.0076597.623.913896
*690-02G4.017.476− 0.5520.0056142.10.01550.00362.41001.68169
690-02H4.713.973− 0.7890.0040147.1− 0.36650.00140.9100− 133.7− 181423
Integrated Age =          16613
(*) Plateau Age =       100  17710
141006-2A, Run ID# 690-03 (J = 0.000273 ± 0.0000008):
*690-03A0.62.8660.0270.0019619.80.27790.02335.25.237.413731
*690-03B1.12.271− 0.0020.0012823.90.33120.088219.624.753.416311
*690-03C1.72.263− 0.0050.0012125.40.34570.128728.653.356.51706
*690-03D2.53.1640.0060.0013731.20.35300.106523.67755.91748
*690-03E3.54.796− 0.0630.0018235.50.35600.066814.891.850.517512
*690-03F4.06.3930.0120.0020442.30.42610.02816.29854.921025
*690-03G4.66.7190.1320.0021542.20.32070.0090210046.715877
Integrated. Age =          1715
(*) Plateau Age =       100  1714