314 / 352
207
Pb
a
U
b
Pb
b
Th
b 206
Pbc
c 207
Pb
d
±2
V
206
Pb
d
±2
V
ȡ
e
207
Pb
d
±2
V
206
Pb
f
±2
V
207
Pb
f
±2
V
207
Pb
f
±2
V
Conc.
g
(cps) (ppm) (ppm)
U (%)
235
U (%)
238
U (%) (rho)
206
Pb (%)
238
U (Ma)
235
U (Ma)
206
Pb (Ma) (%)
Grain
A062
225
5
0 0.13 4.8 0.5320 12.8 0.0674 3.6 0.28 0.0573 12.2 420 15 433 46 502 269 84
A101
224
4
3 0.16 15.4 94 17.2 0.0675 3.4 0.20 10 16.9 421 14 4619 190 -
-
-
A124
850
3
1 0.05 48.0 0.6857 69.6 0.0693 8.0 0.11 0.0718 69.1 432 33 530 338 980 ### 44
A057
189
3
0 0.32 6.0 0.5547 23.0 0.0700 5.2 0.23 0.0575 22.4 436 22 448 87 509 492 86
A116
448
6
1 0.20 8.9 0.5613 15.1 0.0710 3.6 0.24 0.0573 14.7 442 15 452 57 505 323 88
A085
351
5
0 0.18 8.8 0.5884 7.4 0.0712 4.3 0.58 0.0599 6.0 444 18 470 28 600 130 74
A108
259 14 1 0.58 1.9 0.6109 9.7 0.0717 3.1 0.32 0.0618 9.2 446 13 484 38 668 197 67
A113
233
4
0 0.05 13.2 0.3616 60.6 0.0728 5.4 0.09 0.0361 60.4 453 23 313 178 -627 ### -72
A097
416 12 1 0.92 b.d.
0.9751 109 0.0737 20.9 0.19 0.0959 107 459 93 691 782 1546 ### 30
A123
579 39 3 0.20 0.8 0.6437 6.9 0.0747 2.1 0.30 0.0625 6.6 464 9 505 28 692 140 67
A059
339
4
0 0.35 13.1 0.6102 22.5 0.0757 4.3 0.19 0.0585 22.1 470 19 484 91 548 484 86
A098
150 11 1 0.61 b.d.
0.8950 21.3 0.0761 4.2 0.20 0.0853 20.9 473 19 649 108 1322 404 36
A107
207
5
0 0.33 b.d.
1.0280 12.2 0.0761 3.0 0.24 0.0980 11.8 473 14 718 65 1585 220 30
A115
300
4
0 0.25 18.2 0
.0041 #### 0.0762 5.5 0.00
0.0004 4676 473 25 4 216 -
-
-
A014
759
3
0 0.29 17.3 0.7016 19.2 0.0766 3.6 0.19 0.0664 18.8 476 17 540 84 820 393 58
A019
708
3
1 0.43 12.6 1.7640 22.7 0.0769 8.1 0.35 0.1664 21.3 478 37 1032 159 2521 357 19
A119
132
8
1 0.13 b.d.
0.8716 11.8 0.0777 3.6 0.30 0.0814 11.2 482 17 636 57 1231 220 39
A028
303 20 2 0.97 2.5 0.6722 8.7 0.0780 3.1 0.36 0.0625 8.1 484 14 522 36 693 172 70
A122 1076 79 7 0.37 b.d.
0.6778 4.6 0.0781 1.7 0.37 0.0629 4.3 485 8 525 19 706 91 69
A073
136
7
5 0.23 12.2 109.60 18.3 0.0791 4.4 0.24 10.050 17.7 490 21 4778 203 -
-
-
A090
253
4
0 0.19 12.1 0.3589 41.0 0.0793 6.4 0.16 0.0328 40.5 492 30 311 116 -892 ### -55
A111
242
4
0 0.35 7.3 0.9854 16.9 0.0795 5.7 0.34 0.0899 15.9 493 27 696 89 1423 303 35
A072
194
3
0 0.26 9.0 0.6208 30.5 0.0808 5.1 0.17 0.0558 30.1 501 25 490 126 442 669 113
A086
295
5
0 0.13 5.8 0.6732 6.2 0.0809 3.1 0.50 0.0603 5.4 502 15 523 26 616 117 81
A121
300 19 2 0.36 b.d.
1
.0090 9.1 0.0819 2.2
0.25 0.0894 8.8 507 11 708 47 1412 168 36
A120
183
3
0 0.05 5.2 0.9557 17.0 0.0861 3.7 0.22 0.0805 16.6 532 19 681 88 1210 327 44
A114
260
3
0 0.13 1.0 1.7780 16.4 0.0870 6.4 0.39 0.1482 15.1 538 33 1037 112 2325 259 23
A010
672
3
2 0.28 45.6 123.60 16.4 0.0892 6.8 0.42 10.050 14.9 551 36 4900 180 -
-
-
A078
339
4
1 0.32 9.2 0.8091 7.4 0.0920 4.0 0.54 0.0638 6.2 567 22 602 34 734 131 77
A066
147
3
0 0.18 2.5 1.3060 32.6 0.0933 25.9 0.79 0.1015 19.8 575 144 849 207 1652 368 35
A087 2027 8
2 0.32 19.9 1.9690 13.1 0.0986 3.6 0.27 0.1449 12.6 606 21 1105 92 2287 217 26
A082
586
2
1 0.09 16.0 9.9700 102 0.1300 26.7 0.26 0.5564 98.1 788 201 2432 ### 4398 ### 18
A026 2604 4
-
0.19 92.5
-
-
-
-
-
0.6295 94.4 -
-
-
-
4578 ### -
A021
305
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A030
148
3
-
0.07 b.d.
-
-
-
-
-
0.1932 139 -
-
-
-
2770 ### -
A099
153
5
-
0.53 10.1
-
-
-
-
-
0.5727 97.8 -
-
-
-
4440 ### -
A500 603919 3 34 0.19 299.3 -1387.0 55.8 -11.40 41.6 0.75 0.8823 37.2 -
-
-
-
5061 526 -
A018
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A025
124
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A031
609
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A063
203
3
-
0.39 16.1
-
-
-
-
-
10.050 16.1 -
-
-
-
-
-
-
A093
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A094
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A100
120
5
-
0.08 62.1
-
-
-
-
-
10.050 58.0 -
-
-
-
-
-
-
A499 20820 3
-
0.25 95.6
-
-
-
-
-
10.050 15.4 -
-
-
-
-
-
-
91500
h
8378 74 13 0.29 0.5 0.1795 1.4 1.8499 1.8 0.07 0.9148 0.5 1064 14 1063 12 1062 18 100
Felix
h
12482 435 68 2.47 0.2 0.0821 3.0 0.6484 3.0 0.06 2.9654 0.4 509 15 507 12 502 65 102
Plesovice
h
2852 651 34 0.09 1.3 0.0542 2.2 0.3989 4.1 0.05 2.8587 0.5 340 7 341 12 345 64 99
GJ-1
h
9719 290 27 0.04 0.1 0.0984 1.2 0.8151 2.4 0.06 2.2245 0.5 605 7 605 11
206
Pb/
238
U error is the quadratic additions of the within run precision (2 SE) and the external reproducibility (2 SD) of the
reference zircon.
207
Pb/
206
Pb error propagation (
207
Pb signal dependent) following Gerdes & Zeh (2009).
207
Pb/
235
U error is the
quadratic addition of the
207
Pb/
206
Pb and
206
Pb/
238
U uncertainty.
a
Within run background-corrected mean
207
Pb signal in cps (counts per second).
b
U and Pb content and Th/U ratio were calculated relative to GJ-1 reference zircon.
c
Percentage of the common Pb on the
206
Pb. b.d. = below detection limit.
d
Pb/U and Pb/Pb ratios. Corrected for background, within-run Pb/U fractionation (in case of
206
Pb/
238
U) and common Pb
using Stacy and Kramers (1975) model Pb composition and subsequently normalised to GJ-1 (ID-TIMS value/measured value);
207
Pb/
235
U calculated using ((
207
Pb/
206
Pb)*(
238
U/
206
Pb)*137.88).
e
ZŚŽ ;ʌͿ ŝƐ ƚŚĞ ;
206
Pb/
238
U)/(
207
Pb/
235
U) error correlation coefficient.
f
Pb/U and Pb/Pb ages.
g
Degree of concordance = ((
206
Pb/
238
U age)/(
207
Pb/
206
Pb age)) x 100.
h
Mean of 13 (91500), 13 (Felix), 13 (Plesovice), and 26(GJ-1) analyses, respectively.
298