Sample % 39Ar 37Ar/39Ar 36Ar/39Ar 40Ar*/39Ar % 40*Ar Age (Ma) SD
DMS86-110C (41B)
5107-01 0.0047 0.00037 1.6919 94.0 8.474 0.827
5107-02 0.0417 0.00050 1.6969 92.2 8.499 0.740
5107-03 0.0232 0.00061 1.6843 90.4 8.436 0.612
5107-04 0.0254 0.00030 1.7140 95.2 8.585 0.601
5107-05 0.2990 0.00032 1.6850 94.8 8.440 1.397
Plataeu Age = 8.50 +/- 0.33 SE
Irradiation Data
20 J=0.001428 +/- 0.000001
41B J=0.005920 +/- 0.000009
61B J=0.002783 +/- 0.000002
61A2 J=0.002844 +/- 0.000004
98A J=0.000478 +/- 0.000001