Sample No. Th 04-02.

K₂O (Wt. %)

⁴⁰Ar^* (nl/g) STP

⁴⁰Ar^* (%)

Age (Ma)

2σ-Error (Ma)

Muscowite

10.70

134.21

97.75

352.2

7.2

Biotite

8.49

106.44

96.98

352.0

7.7