Sample ID

Weight molten (g)

K (wt%)

[³⁶Ar] measured

[⁴⁰Ar] measured

[⁴⁰Ar]_rad

(10⁻⁸ ccSTP/g)

Non-radiogenic

⁴⁰Ar contents (%)

K-Ar age (Ma)

CTBL10-3

1.0069

1.140 ± 0.023

1.539E−12 ± 4.827E−15

3.628E−10 ± 1.911E−13

0.3700 ± 0.3221

98.18

0.0836 ± 0.0728

CTB71-10

1.0038

1.133 ± 0.023

9.225E−13 ± 6.044E−15

2.564E−10 ± 1.901E−13

2.2552 ± 0.2137

84.36

0.5129 ± 0.0497

CTB101a

1.0267

0.984 ± 0.020

5.239E−13 ± 2.643E−15

1.450E−10 ± 3.060E−13

1.1140 ± 0.1458

88.3

0.2917 ± 0.0386

CTB101b

1.0242

1.040 ± 0.021

2.417E−13 ± 1.652E−15

8.156E−11 ± 1.683E−13

1.3921 ± 0.0783

73.9

0.3449 ± 0.0062

CTB124a

1.0378

1.299 ± 0.026

2.965E−13 ± 2.093E−15

7.765E−11 ± 4.487E−13

0.2461 ± 0.0820

95.1

0.0488 ± 0.01683

Aka (2000)

0.4721

1.360 ± 0.068

6.336E−10 ± 3.248E−11

2.000E−07 ± 1.312E−09

1.2470 ± 0.78

-

0.24 ± 0.02

0.4716

1.430 ± 0.071

2.149E−10 ± 1.265E−11

7.479E−08 ± 9.257E−10

1.1180 ± 0.76

-

0.20 ± 0.02