t (yrs)

Ko (mpy)

logKo

K (mpy)

logK

log(θ/1θ)

C (M)

logC

T (˚K)

(1000 × 1/T)

1

99.663

1.998

29.134

1.464

0.383

50

−1.30

288

3.47

2

134.549

2.128

33.123

1.520

0.486

60

−1.22

298

3.35

3

148.865

2.172

42.484

1.628

0.398

70

−1.15

303

3.30

4

176.698

2.247

56.212

1.479

0.331

80

−1.09

308

3.24

5

187.353

2.272

61.712

1.790

0.308

90

−1.04

313

3.19