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Table 2 SHRIMP U-Pb data for the zircon.

From: Enhanced diffusion of Uranium and Thorium linked to crystal plasticity in zircon

Spot

U (ppm)

Th (ppm)

Th/U

Pb (ppm)

c206Pb (%)

207Pb/206Pb

±1σ error

206Pb/238U

±1σ error

207Pb/235U

±1σ error

207Pb/206Pb age

±1σ error

16

33

42

1.25

21

1.47

0.1653

0.0041

0.4530

0.0080

10.33

0.33

2511

42

17

30

51

1.69

20

1.16

0.1708

0.0039

0.4557

0.0076

10.73

0.32

2565

38

18

23

31

1.35

15

2.21

0.1601

0.0053

0.4616

0.0082

10.19

0.41

2457

56

19

23

31

1.36

15

2.80

0.1528

0.0045

0.4799

0.0084

10.11

0.37

2378

51

20

26

36

1.36

17

1.91

0.1562

0.0037

0.4730

0.0079

10.19

0.31

2415

41

21

30

45

1.52

19

1.30

0.1602

0.0044

0.4442

0.0073

9.81

0.33

2457

47

22

36

56

1.58

23

1.60

0.1561

0.0032

0.4528

0.0069

9.75

0.26

2414

35

23

38

64

1.65

25

1.81

0.1518

0.0035

0.4562

0.0074

9.55

0.28

2366

39

24

41

66

1.61

27

1.37

0.1592

0.0028

0.4638

0.0068

10.18

0.25

2447

30

25

40

69

1.72

26

1.51

0.1585

0.0030

0.4527

0.0066

9.89

0.25

2439

32

26

27

42

1.55

18

2.00

0.1632

0.0044

0.4626

0.0077

10.41

0.35

2489

45

27

33

55

1.63

23

1.42

0.1616

0.0034

0.4824

0.0077

10.75

0.30

2473

35

28

28

46

1.67

19

2.28

0.1601

0.0043

0.4596

0.0077

10.14

0.34

2457

45

29

37

67

1.81

25

1.18

0.1616

0.0029

0.4588

0.0071

10.23

0.26

2473

30

30

27

47

1.76

18

3.73

0.1536

0.0053

0.4427

0.0077

9.37

0.38

2386

58

31

34

60

1.77

24

2.56

0.1597

0.0037

0.4737

0.0076

10.43

0.31

2452

39

32

43

76

1.78

29

2.24

0.1549

0.0033

0.4515

0.0068

9.64

0.27

2401

36

33

37

65

1.76

25

2.08

0.1621

0.0034

0.4607

0.0071

10.30

0.29

2478

36

34

30

51

1.68

20

1.90

0.1653

0.0046

0.4538

0.0076

10.35

0.35

2511

47

35

37

65

1.73

25

2.90

0.1544

0.0040

0.4484

0.0070

9.54

0.30

2395

44

36

32

53

1.66

22

2.97

0.1587

0.0045

0.4634

0.0075

10.14

0.35

2442

48

37

35

60

1.70

23

2.67

0.1567

0.0045

0.4445

0.0081

9.60

0.35

2420

49

38

44

80

1.82

30

2.64

0.1516

0.0032

0.4490

0.0067

9.39

0.26

2364

36

39

57

103

1.80

37

2.58

0.1616

0.0034

0.4296

0.0063

9.57

0.26

2473

36

40

50

92

1.83

34

1.51

0.1647

0.0028

0.4524

0.0065

10.27

0.24

2504

29

41

45

81

1.79

30

0.78

0.1636

0.0026

0.4527

0.0067

10.21

0.23

2494

27

42

25

34

1.37

16

2.28

0.1617

0.0072

0.4497

0.0084

10.03

0.50

2474

75

43

30

42

1.41

19

3.08

0.1525

0.0050

0.4434

0.0074

9.32

0.36

2374

55

44

37

48

1.29

24

1.84

0.1597

0.0034

0.4660

0.0071

10.26

0.29

2453

36

45

31

35

1.13

19

2.27

0.1594

0.0041

0.4571

0.0078

10.04

0.33

2449

44

46

26

40

1.53

18

2.99

0.1599

0.0053

0.4625

0.0081

10.20

0.40

2455

56

47

37

60

1.62

24

2.51

0.1557

0.0038

0.4487

0.0071

9.63

0.29

2410

41

48

24

35

1.51

16

1.94

0.1644

0.0047

0.4594

0.0081

10.41

0.37

2502

48

49

27

42

1.53

18

3.66

0.1545

0.0052

0.4568

0.0080

9.73

0.39

2396

58

50

35

63

1.80

25

2.83

0.1567

0.0041

0.4735

0.0076

10.23

0.33

2421

44

  1. Ratios refer to radiogenic Pb, c206Pb is the percentage of common 206Pb in the total, as estimated from the measured 204Pb/206Pb ratio. The numeric suffix of each analysis corresponds to the numbered spots shown in Fig. 3c.