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