Mineral

TIMS analytical data

Fraction

Pb (ppm)

U (ppm)

²⁰⁶Pb/²⁰⁴Pb

²⁰⁶Pb/²³⁸U

²⁰⁷Pb/²³⁵U

²⁰⁷Pb/²⁰⁶Pb

²⁰⁷Pb/²⁰⁶Pb (Ma)

Zircon

A

28.7

225.8

2730

0.133141 ± 71

1.29737 ± 79

0.070672 ± 19

948

B

25.1

201.3

1081

0.124028 ± 66

1.26231 ± 72

0.073815 ± 15

1036

C

39.3

245

265

0.131265 ± 67

1.48238 ± 102

0.081941 ± 38

1244

D

35.3

256.9

1880

0.136477 ± 75

1.63236 ± 96

0.086745 ± 18

1355

E

16.1

132.5

849

0.122159 ± 85

1.25556 ± 92

0.074544 ± 14

1056

Monazite

B

2637

2715

1885

0.145719 ± 67

1.3993 ± 65

0.069646 ± 48

918

C

1633

1488

3530

0.133188 ± 65

1.24677 ± 63

0.067892 ± 101

865

D

2103

2910

23900

0.157861 ± 73

1.65473 ± 76

0.076024 ± 38

1096

F

1842

1914

1319

0.086651 ± 40

0.696368 ± 33

0.05831 ± 69

541