Finding of Ca. 1.6 Ga Detrital Zircons from the Mesoproterozoic Dagushi Group, Northern Margin of the Yangtze Block
Abstract
:1. Introduction
2. Geological Setting
3. Analytical Methods
3.1. Zircon U–Pb Dating
3.2. Zircon Trace Element Analysis
3.3. Zircon Lu–Hf Isotope Analysis
4. Results
4.1. Zircon Ages and Hf Isotopes
4.1.1. Dangpuling Fm
4.1.2. Luohanling Fm
5. Discussion
5.1. Provenance of the Dagushi Gp
5.2. Tectonic Setting for Sedimentation of the Dagushi Gp
5.3. Reconstruction of the Supercontinent Columbia
6. Conclusions
- (1)
- The detrital zircon spectra of the Dagushi Gp shows two distinct age peaks of ~2.65 Ga and ~1.60 Ga, which are compatible with the magmatism reported from the Yangtze Block. Sedimentological and geochronological comparisons between the Dagushi and the Shennongjia groups indicate that the groups were probably coeval units. Provenance studies suggest the sediments of the Dagushi Gp could be derived from mafic source regions within the Yangtze Block.
- (2)
- The ~1.60 Ga ages first discovered yield a narrow range of ɛHf(t) values from −1.8 to +1.8, which lie above the old crust evolutionary line of the Yangtze Block, suggesting the addition of mantle material.
- (3)
- Most ~1.60 Ga detrital zircons are plotted into the within-plate/anorogenic field. The Yangtze Block was likely a fragment of the Paleo- to Mesoproterozoic supercontinent Columbia and may have been located in its center rather than its margin.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Appendix A
Analysis | Sample | Pb | Th | U | Isotopic Ratios | Age (Ma) | Concordia | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. | Name | (ppm) | (ppm) | (ppm) | 207Pb/206Pb | 1σ | 207Pb/235Pb | 1σ | 206Pb/238Pb | 1σ | 207Pb/206Pb | 1σ | 207Pb/235Pb | 1σ | 206Pb/238Pb | 1σ | |
Standard Zircon 91500 as an External Standard (Reference 206Pb/238U Age = 1062.4 ± 0.8 Ma, 2σ [31]) | |||||||||||||||||
JS14-1 | |||||||||||||||||
SEP16A02 | 91500std | 83 | 80 | 230 | 0.0748 | 0.0022 | 1.8589 | 0.0540 | 0.1805 | 0.0026 | 1065 | 56 | 1067 | 19 | 1070 | 14 | 99% |
SEP16A03 | 91500std | 83 | 82 | 233 | 0.0749 | 0.0022 | 1.8415 | 0.0543 | 0.1778 | 0.0026 | 1133 | 59 | 1060 | 19 | 1055 | 14 | 99% |
SEP16A07 | 91500std | 83 | 83 | 235 | 0.0749 | 0.0019 | 1.8502 | 0.0464 | 0.1792 | 0.0024 | 1065 | 51 | 1064 | 17 | 1062 | 13 | 99% |
SEP16A15 | 91500std | 85 | 82 | 235 | 0.0744 | 0.0022 | 1.8281 | 0.0524 | 0.1785 | 0.0026 | 1051 | 59 | 1056 | 19 | 1059 | 14 | 99% |
SEP16A16 | 91500std | 83 | 81 | 231 | 0.0754 | 0.0023 | 1.8723 | 0.0558 | 0.1798 | 0.0026 | 1080 | 61 | 1071 | 20 | 1066 | 14 | 99% |
SEP16A23 | 91500std | 84 | 81 | 235 | 0.0749 | 0.0021 | 1.8502 | 0.0517 | 0.1792 | 0.0024 | 1065 | 56 | 1064 | 18 | 1062 | 13 | 99% |
SEP16A31 | 91500std | 83 | 80 | 230 | 0.0752 | 0.0025 | 1.8576 | 0.0639 | 0.1788 | 0.0026 | 1074 | 67 | 1066 | 23 | 1060 | 14 | 99% |
SEP16A32 | 91500std | 82 | 81 | 233 | 0.0746 | 0.0025 | 1.8428 | 0.0601 | 0.1796 | 0.0026 | 1057 | 67 | 1061 | 21 | 1065 | 14 | 99% |
SEP16A39 | 91500std | 83 | 81 | 231 | 0.0773 | 0.0025 | 1.9048 | 0.0644 | 0.1784 | 0.0026 | 1129 | 66 | 1083 | 23 | 1058 | 14 | 97% |
SEP16A40 | 91500std | 93 | 91 | 258 | 0.0725 | 0.0023 | 1.7956 | 0.0571 | 0.1799 | 0.0026 | 998 | 64 | 1044 | 21 | 1066 | 14 | 97% |
SEP16A48 | 91500std | 86 | 82 | 234 | 0.0738 | 0.0023 | 1.8224 | 0.0595 | 0.1791 | 0.0027 | 1035 | 63 | 1054 | 21 | 1062 | 15 | 99% |
SEP16A49 | 91500std | 84 | 82 | 236 | 0.0760 | 0.0024 | 1.8780 | 0.0611 | 0.1792 | 0.0026 | 1094 | 68 | 1073 | 22 | 1063 | 14 | 99% |
SEP16A56 | 91500std | 84 | 82 | 233 | 0.0755 | 0.0024 | 1.8716 | 0.0583 | 0.1797 | 0.0028 | 1083 | 62 | 1071 | 21 | 1066 | 15 | 99% |
SEP16A57 | 91500std | 84 | 79 | 231 | 0.0742 | 0.0024 | 1.8288 | 0.0604 | 0.1786 | 0.0028 | 1048 | 71 | 1056 | 22 | 1059 | 15 | 99% |
SEP16A64 | 91500std | 83 | 81 | 233 | 0.0749 | 0.0021 | 1.8502 | 0.0504 | 0.1792 | 0.0024 | 1065 | 56 | 1064 | 18 | 1062 | 13 | 99% |
SEP16A72 | 91500std | 90 | 85 | 244 | 0.0767 | 0.0024 | 1.8961 | 0.0586 | 0.1791 | 0.0027 | 1122 | 62 | 1080 | 21 | 1062 | 15 | 98% |
SEP16A73 | 91500std | 85 | 82 | 238 | 0.0731 | 0.0023 | 1.8043 | 0.0568 | 0.1793 | 0.0027 | 1017 | 65 | 1047 | 21 | 1063 | 15 | 98% |
SEP16A80 | 91500std | 82 | 79 | 231 | 0.0731 | 0.0024 | 1.7981 | 0.0607 | 0.1785 | 0.0027 | 1017 | 68 | 1045 | 22 | 1059 | 15 | 98% |
SEP16A81 | 91500std | 88 | 86 | 242 | 0.0767 | 0.0024 | 1.9023 | 0.0600 | 0.1798 | 0.0026 | 1122 | 64 | 1082 | 21 | 1066 | 14 | 98% |
SEP16A91 | 91500std | 81 | 81 | 232 | 0.0741 | 0.0023 | 1.8402 | 0.0583 | 0.1797 | 0.0028 | 1056 | 63 | 1060 | 21 | 1066 | 16 | 99% |
SEP16A92 | 91500std | 86 | 81 | 236 | 0.0756 | 0.0024 | 1.8602 | 0.0583 | 0.1786 | 0.0028 | 1087 | 65 | 1067 | 21 | 1059 | 15 | 99% |
Average | 85 | 82 | 235 | 0.0749 | 0.0023 | 1.8502 | 0.0573 | 0.1792 | 0.0026 | 1070 | 62 | 1063 | 20 | 1062 | 14 | ||
N = 21 | |||||||||||||||||
JS14-2 | |||||||||||||||||
JUN22F02 | 91500std | 31 | 31 | 84 | 0.074351 | 0.002171 | 1.819084 | 0.052852 | 0.177726 | 0.002108 | 1051 | 59 | 1052 | 19 | 1055 | 12 | 99% |
JUN22F03 | 91500std | 30 | 30 | 81 | 0.075409 | 0.002125 | 1.881316 | 0.055478 | 0.180614 | 0.002297 | 1080 | 61 | 1075 | 20 | 1070 | 13 | 99% |
JUN22F14 | 91500std | 30 | 29 | 81 | 0.075724 | 0.002173 | 1.859439 | 0.050115 | 0.178574 | 0.002645 | 1087 | 57 | 1067 | 18 | 1059 | 14 | 99% |
JUN22F15 | 91500std | 31 | 30 | 82 | 0.074036 | 0.002178 | 1.840961 | 0.052061 | 0.179766 | 0.002259 | 1043 | 59 | 1060 | 19 | 1066 | 12 | 99% |
JUN22F22 | 91500std | 29 | 30 | 82 | 0.073122 | 0.002133 | 1.796333 | 0.054674 | 0.177865 | 0.002199 | 1017 | 55 | 1044 | 20 | 1055 | 12 | 98% |
JUN22F23 | 91500std | 31 | 29 | 81 | 0.076638 | 0.002296 | 1.904067 | 0.059651 | 0.180475 | 0.002345 | 1122 | 61 | 1083 | 21 | 1070 | 13 | 98% |
JUN22F30 | 91500std | 31 | 30 | 83 | 0.076342 | 0.002141 | 1.900045 | 0.051711 | 0.181332 | 0.002255 | 1106 | 52 | 1081 | 18 | 1074 | 12 | 99% |
JUN22F31 | 91500std | 31 | 31 | 85 | 0.073418 | 0.001879 | 1.800355 | 0.048089 | 0.177008 | 0.001911 | 1026 | 52 | 1046 | 17 | 1051 | 10 | 99% |
JUN22F38 | 91500std | 31 | 30 | 83 | 0.074426 | 0.002088 | 1.845738 | 0.052396 | 0.179976 | 0.002436 | 1054 | 57 | 1062 | 19 | 1067 | 13 | 99% |
JUN22F39 | 91500std | 31 | 31 | 83 | 0.075334 | 0.002264 | 1.854662 | 0.056284 | 0.178364 | 0.002215 | 1077 | 60 | 1065 | 20 | 1058 | 12 | 99% |
JUN22F46 | 91500std | 30 | 30 | 82 | 0.073506 | 0.002322 | 1.823339 | 0.058917 | 0.179551 | 0.002457 | 1028 | 69 | 1054 | 21 | 1065 | 13 | 98% |
JUN22F47 | 91500std | 29 | 29 | 80 | 0.076254 | 0.002375 | 1.877061 | 0.056903 | 0.178789 | 0.002384 | 1102 | 62 | 1073 | 20 | 1060 | 13 | 98% |
Average | 30 | 30 | 82 | 0.0749 | 0.0022 | 1.8502 | 0.0541 | 0.1792 | 0.0023 | 1066 | 59 | 1063 | 19 | 1062 | 13 | ||
N = 12 | |||||||||||||||||
Standard Zircon GJ-1 as an Unknown (Reference 206Pb/238U age = 599.8 ± 1.7 Ma, 2σ [32]) | |||||||||||||||||
JS14-1 | |||||||||||||||||
SEP16A04 | GJ-1 | 77 | 27 | 911 | 0.0636 | 0.0016 | 0.8572 | 0.0215 | 0.0974 | 0.0013 | 728 | 56 | 629 | 12 | 599 | 8 | 95% |
SEP16A05 | GJ-1 | 75 | 26 | 910 | 0.0605 | 0.0013 | 0.8203 | 0.0190 | 0.0977 | 0.0012 | 620 | 81 | 608 | 11 | 601 | 7 | 98% |
SEP16A06 | GJ-1 | 75 | 26 | 918 | 0.0603 | 0.0012 | 0.8066 | 0.0167 | 0.0966 | 0.0012 | 617 | 43 | 601 | 9 | 594 | 7 | 98% |
SEP16A88 | GJ-1 | 75 | 26 | 913 | 0.0615 | 0.0015 | 0.8214 | 0.0207 | 0.0966 | 0.0014 | 655 | 47 | 609 | 12 | 595 | 8 | 97% |
SEP16A89 | GJ-1 | 75 | 26 | 920 | 0.0604 | 0.0015 | 0.8160 | 0.0202 | 0.0977 | 0.0014 | 620 | 54 | 606 | 11 | 601 | 8 | 99% |
SEP16A90 | GJ-1 | 75 | 26 | 920 | 0.0606 | 0.0015 | 0.8174 | 0.0209 | 0.0977 | 0.0014 | 633 | 54 | 607 | 12 | 601 | 8 | 99% |
Average | 75 | 26 | 916 | 0.0611 | 0.0014 | 0.8231 | 0.0198 | 0.0973 | 0.0013 | 646 | 56 | 610 | 11 | 598 | 8 | 98% | |
N = 6 | |||||||||||||||||
JS14-2 | |||||||||||||||||
JUN22F04 | GJ-1 | 26 | 9 | 301 | 0.059788 | 0.001456 | 0.835935 | 0.021002 | 0.101007 | 0.001023 | 594 | 56 | 617 | 12 | 620 | 6 | 99% |
JUN22F05 | GJ-1 | 26 | 9 | 306 | 0.060316 | 0.001449 | 0.827422 | 0.019914 | 0.099093 | 0.000941 | 617 | 52 | 612 | 11 | 609 | 6 | 99% |
Average | 26 | 9 | 0.0601 | 0.0015 | 0.8317 | 0.0205 | 0.1001 | 0.0010 | 0.0601 | 606 | 54 | 615 | 11 | 615 | 6 | ||
N = 2 |
Spot No. | Ti | Y | Nb | Ce | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | Th | U |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
JS14-1 | |||||||||||||||||||
NIST-610 | 437 | 439 | 420 | 444 | 435 | 454 | 461 | 443 | 443 | 426 | 447 | 421 | 423 | 465 | 428 | 375 | 452 | 451.9 | 425.7 |
NIST-610 | 437 | 439 | 420 | 444 | 435 | 454 | 461 | 443 | 443 | 426 | 447 | 421 | 423 | 465 | 428 | 375 | 452 | 451.9 | 425.7 |
NIST-610 | 437 | 439 | 420 | 444 | 435 | 454 | 461 | 443 | 443 | 426 | 447 | 421 | 423 | 465 | 428 | 375 | 452 | 451.9 | 425.7 |
91500std | 4.6 | 135 | 0.77 | 2.58 | 0.06 | 0.4 | 0.16 | 2.01 | 0.83 | 11.0 | 4.64 | 24.1 | 6.05 | 67.0 | 13.0 | 5780 | 0.5 | 28.9 | 77 |
91500std | 3.5 | 141 | 0.75 | 2.62 | 0.27 | 0.4 | 0.24 | 2.24 | 0.92 | 11.6 | 4.91 | 24.8 | 6.44 | 69.6 | 13.4 | 5852 | 0.6 | 30.2 | 80 |
91500std | 5.1 | 139 | 0.80 | 2.79 | 0.01 | 0.0 | 0.21 | 2.05 | 0.88 | 11.3 | 4.79 | 24.7 | 6.35 | 69.3 | 13.5 | 5750 | 0.5 | 30.0 | 79 |
91500std | 3.0 | 136 | 0.77 | 2.75 | 0.23 | 0.3 | 0.25 | 1.97 | 0.83 | 11.4 | 4.66 | 23.2 | 6.11 | 67.3 | 13.3 | 5668 | 0.5 | 29.0 | 83 |
91500std | 5.3 | 139 | 0.70 | 2.58 | 0.15 | 0.5 | 0.33 | 2.46 | 0.82 | 11.2 | 4.70 | 24.8 | 6.29 | 69.2 | 13.3 | 5756 | 0.6 | 29.3 | 78 |
91500std | 4.0 | 137 | 0.73 | 2.69 | 0.03 | 0.4 | 0.31 | 2.17 | 0.86 | 11.1 | 4.88 | 24.7 | 6.13 | 68.1 | 13.1 | 5704 | 0.5 | 28.8 | 77 |
91500std | 4.4 | 137 | 0.70 | 2.73 | 0.16 | 0.4 | 0.26 | 2.28 | 0.93 | 10.6 | 4.60 | 24.4 | 6.15 | 68.2 | 13.1 | 5702 | 0.6 | 28.8 | 77 |
91500std | 2.9 | 135 | 0.66 | 2.69 | 0.26 | 0.6 | 0.23 | 1.98 | 0.84 | 11.5 | 4.78 | 23.7 | 6.26 | 67.3 | 13.2 | 5749 | 0.5 | 29.3 | 78 |
91500std | 3.5 | 136 | 0.64 | 2.84 | 0.24 | 0.3 | 0.26 | 2.21 | 0.91 | 11.3 | 4.55 | 24.2 | 6.29 | 67.7 | 13.2 | 5729 | 0.5 | 28.6 | 77 |
91500std | 6.2 | 139 | 0.70 | 2.66 | 0.14 | 0.3 | 0.22 | 2.13 | 0.90 | 11.1 | 4.78 | 24.6 | 6.14 | 68.7 | 13.3 | 5715 | 0.5 | 29.3 | 79 |
91500std | 4.9 | 138 | 0.70 | 2.43 | 0.23 | 0.5 | 0.21 | 2.33 | 0.89 | 11.9 | 4.93 | 25.5 | 6.34 | 69.1 | 13.5 | 5850 | 0.6 | 29.6 | 79 |
91500std | 3.5 | 151 | 0.67 | 2.69 | 0.15 | 0.5 | 0.34 | 2.15 | 0.90 | 12.3 | 5.38 | 27.7 | 6.74 | 75.0 | 14.7 | 5888 | 0.6 | 33.5 | 89 |
91500std | 4.1 | 142 | 0.70 | 2.73 | 0.33 | 0.5 | 0.23 | 2.14 | 0.98 | 11.4 | 4.75 | 25.6 | 6.50 | 70.5 | 13.7 | 5916 | 0.6 | 30.4 | 81 |
91500std | 7.2 | 142 | 0.79 | 2.82 | 0.04 | 0.6 | 0.35 | 2.29 | 0.80 | 11.3 | 4.86 | 25.0 | 6.49 | 70.2 | 13.8 | 5879 | 0.5 | 30.6 | 82 |
91500std | 4.8 | 144 | 0.70 | 2.94 | 0.13 | 0.5 | 0.26 | 2.44 | 0.91 | 11.8 | 5.01 | 25.7 | 6.66 | 71.5 | 13.8 | 5948 | 0.6 | 30.9 | 82 |
91500std | 6.9 | 139 | 0.72 | 2.71 | 0.20 | 0.3 | 0.22 | 2.15 | 0.82 | 11.5 | 4.74 | 25.2 | 6.10 | 69.6 | 13.5 | 5831 | 0.6 | 29.8 | 80 |
91500std | 5.7 | 140 | 0.72 | 2.64 | 0.38 | 0.6 | 0.22 | 1.82 | 0.90 | 11.5 | 4.77 | 24.7 | 6.22 | 70.4 | 13.7 | 5900 | 0.6 | 30.2 | 81 |
91500std | 6.5 | 149 | 0.75 | 2.74 | 0.19 | 0.5 | 0.36 | 2.32 | 0.97 | 12.2 | 5.33 | 26.6 | 6.89 | 75.4 | 14.6 | 6309 | 0.6 | 31.8 | 85 |
91500std | 5.8 | 150 | 0.65 | 2.98 | 0.11 | 0.5 | 0.27 | 2.94 | 0.93 | 12.3 | 5.17 | 26.3 | 6.68 | 73.6 | 14.4 | 6079 | 0.6 | 32.6 | 87 |
91500std | 6.7 | 150 | 0.79 | 2.82 | 0.31 | 0.4 | 0.26 | 2.75 | 0.98 | 12.1 | 5.36 | 26.9 | 6.70 | 75.3 | 14.6 | 6248 | 0.6 | 31.9 | 86 |
91500std | 5.4 | 144 | 0.71 | 2.88 | 0.18 | 0.6 | 0.31 | 2.52 | 0.90 | 12.0 | 5.02 | 26.1 | 6.72 | 72.9 | 14.4 | 6136 | 0.6 | 30.7 | 83 |
91500std | 4.5 | 151 | 0.62 | 2.99 | 0.00 | 0.3 | 0.37 | 2.58 | 0.82 | 12.7 | 5.27 | 27.5 | 7.07 | 75.0 | 14.8 | 6154 | 0.6 | 33.2 | 87 |
91500std | 2.2 | 146 | 0.71 | 2.75 | 0.27 | 0.6 | 0.27 | 2.40 | 0.93 | 12.1 | 4.99 | 26.2 | 6.72 | 72.9 | 14.4 | 6213 | 0.6 | 31.3 | 83 |
91500std | 5.9 | 149 | 0.77 | 2.79 | 0.21 | 0.3 | 0.20 | 2.51 | 0.93 | 12.0 | 5.34 | 27.7 | 6.86 | 76.0 | 14.8 | 6325 | 0.6 | 32.2 | 86 |
GJ-1 | 2.78 | 249 | 1.56 | 16.9 | 0.73 | 1.38 | 0.95 | 7.1 | 2.07 | 20.6 | 7.20 | 29.6 | 6.56 | 66.8 | 12.8 | 6779 | 0.46 | 10.01 | 317 |
GJ-1 | 2.04 | 248 | 1.73 | 16.5 | 0.67 | 1.53 | 0.98 | 6.9 | 1.95 | 20.4 | 6.97 | 29.9 | 6.32 | 65.8 | 13.1 | 6702 | 0.49 | 9.68 | 312 |
GJ-1 | 3.37 | 251 | 1.62 | 16.8 | 0.58 | 1.77 | 0.95 | 7.1 | 2.07 | 20.3 | 7.04 | 30.5 | 6.56 | 66.4 | 13.2 | 6800 | 0.45 | 9.82 | 320 |
GJ-1 | 4.70 | 270 | 1.75 | 18.3 | 0.75 | 1.63 | 0.91 | 7.7 | 2.17 | 23.4 | 7.94 | 33.5 | 7.18 | 71.5 | 14.3 | 7466 | 0.49 | 10.63 | 348 |
GJ-1 | 5.49 | 263 | 1.69 | 17.8 | 0.65 | 1.45 | 1.13 | 7.3 | 2.15 | 21.4 | 7.61 | 32.2 | 7.07 | 71.5 | 14.2 | 7313 | 0.48 | 10.36 | 342 |
GJ-1 | 5.50 | 263 | 1.69 | 17.9 | 0.65 | 1.45 | 1.13 | 7.3 | 2.15 | 21.5 | 7.62 | 32.2 | 7.08 | 71.6 | 14.2 | 7323 | 0.48 | 10.38 | 343 |
JS14-2 | |||||||||||||||||||
NIST-610 | 433 | 421 | 419 | 447 | 431 | 450 | 461 | 441 | 442 | 418 | 444 | 410 | 416 | 434 | 425 | 372 | 451 | 433.1 | 430.0 |
91500std | 5.0 | 153 | 0.82 | 2.94 | 0.28 | 0.5 | 0.24 | 2.84 | 1.05 | 12.6 | 5.47 | 28.8 | 7.39 | 77.0 | 14.6 | 5999 | 0.6 | 34.5 | 88 |
91500std | 4.8 | 147 | 0.82 | 2.77 | 0.28 | 0.5 | 0.23 | 2.46 | 1.03 | 12.6 | 5.25 | 26.7 | 7.27 | 72.1 | 14.1 | 5820 | 0.5 | 32.9 | 84 |
91500std | 4.7 | 145 | 0.77 | 2.59 | 0.28 | 0.5 | 0.20 | 2.56 | 0.97 | 12.9 | 5.14 | 26.7 | 6.91 | 73.7 | 14.1 | 5910 | 0.6 | 31.9 | 83 |
91500std | 6.0 | 148 | 0.86 | 2.88 | 0.22 | 0.5 | 0.27 | 2.45 | 1.00 | 12.5 | 5.36 | 26.9 | 7.14 | 74.8 | 14.5 | 5995 | 0.6 | 33.0 | 84 |
91500std | 6.0 | 147 | 0.75 | 2.63 | 0.30 | 0.6 | 0.26 | 2.85 | 1.00 | 12.6 | 5.15 | 27.2 | 7.17 | 73.4 | 14.3 | 5929 | 0.6 | 32.3 | 83 |
91500std | 5.5 | 145 | 0.87 | 2.86 | 0.34 | 0.4 | 0.29 | 2.83 | 0.96 | 12.5 | 5.35 | 26.4 | 7.05 | 72.9 | 14.2 | 5952 | 0.6 | 32.0 | 84 |
91500std | 5.7 | 152 | 0.86 | 2.65 | 0.30 | 0.6 | 0.31 | 2.35 | 1.00 | 13.1 | 5.56 | 27.8 | 7.46 | 76.8 | 14.7 | 6024 | 0.6 | 33.9 | 88 |
91500std | 5.8 | 158 | 0.77 | 2.87 | 0.33 | 0.5 | 0.35 | 2.95 | 1.02 | 13.8 | 5.65 | 29.1 | 7.82 | 80.3 | 15.0 | 6203 | 0.6 | 34.9 | 91 |
91500std | 6.4 | 158 | 0.86 | 3.10 | 0.47 | 0.6 | 0.33 | 2.89 | 1.11 | 13.3 | 5.65 | 28.5 | 7.84 | 77.8 | 14.9 | 6045 | 0.6 | 34.2 | 89 |
91500std | 2.9 | 155 | 0.80 | 2.90 | 0.20 | 0.7 | 0.29 | 2.98 | 1.06 | 12.4 | 5.68 | 27.8 | 7.55 | 77.4 | 14.9 | 6063 | 0.6 | 35.2 | 89 |
91500std | 4.7 | 154 | 0.79 | 2.67 | 0.29 | 0.6 | 0.31 | 2.62 | 0.96 | 13.3 | 5.46 | 28.2 | 7.49 | 75.7 | 14.7 | 6184 | 0.6 | 33.9 | 88 |
91500std | 6.6 | 152 | 0.91 | 2.98 | 0.34 | 0.7 | 0.29 | 2.60 | 1.01 | 13.0 | 5.70 | 27.7 | 7.53 | 77.8 | 15.2 | 6412 | 0.6 | 33.2 | 87 |
GJ-1 | 3.78 | 219 | 1.53 | 14.7 | 0.40 | 1.51 | 1.01 | 6.7 | 1.86 | 18.8 | 6.26 | 27.8 | 6.44 | 60.6 | 11.4 | 6109 | 0.49 | 8.67 | 284 |
GJ-1 | 2.91 | 233 | 1.60 | 15.3 | 0.68 | 1.40 | 1.02 | 7.4 | 1.97 | 19.5 | 7.03 | 28.7 | 6.62 | 64.2 | 12.5 | 6579 | 0.46 | 9.22 | 304 |
Analysis | Sample | 176Hf/177Hf | 176Lu/177Hf | 176Yb/177Hf | Hf | Yb | Lu | εHf(0) | 1σ | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
No. | Name | Ratio | 1σ | Ratio | 1σ | Ratio | 1σ | (ppm) | (ppm) | (ppm) | ||
Standard Zircon 91500 as an External Standard (Reference 176Hf/177Hf Value = 0.282308 ± 6, 2σ [45]) | ||||||||||||
JAN14A19 | 91500 | 0.282419 | 0.000034 | 0.000293 | 0.000001 | 0.006889 | 0.000022 | 6293 | 77 | 14 | −12.5 | 1.3 |
JAN14A20 | 91500 | 0.282188 | 0.000027 | 0.000294 | 0.000001 | 0.006999 | 0.000039 | 6234 | 76 | 14 | −20.6 | 1.1 |
JAN14A28 | 91500 | 0.282408 | 0.000018 | 0.000288 | 0.000001 | 0.006683 | 0.000022 | 8714 | 103 | 19 | −12.9 | 0.8 |
JAN14A29 | 91500 | 0.282368 | 0.000023 | 0.000286 | 0.000001 | 0.006635 | 0.000034 | 8619 | 101 | 18 | −14.3 | 1.0 |
JAN14A37 | 91500 | 0.282409 | 0.000031 | 0.000299 | 0.000001 | 0.007099 | 0.000030 | 5832 | 72 | 13 | −12.8 | 1.2 |
JAN14A38 | 91500 | 0.282421 | 0.000042 | 0.000294 | 0.000001 | 0.006912 | 0.000035 | 6353 | 78 | 14 | −12.4 | 1.6 |
JAN14A46 | 91500 | 0.282490 | 0.000042 | 0.000297 | 0.000001 | 0.006949 | 0.000039 | 6056 | 74 | 13 | −10.0 | 1.6 |
JAN14A47 | 91500 | 0.282594 | 0.000030 | 0.000286 | 0.000001 | 0.006720 | 0.000041 | 5851 | 70 | 12 | −6.3 | 1.2 |
JAN14A55 | 91500 | 0.282362 | 0.000033 | 0.000297 | 0.000001 | 0.006890 | 0.000028 | 6470 | 79 | 14 | −14.5 | 1.3 |
JAN14A56 | 91500 | 0.282591 | 0.000042 | 0.000290 | 0.000001 | 0.006705 | 0.000040 | 4288 | 51 | 9 | −6.4 | 1.6 |
JAN14A66 | 91500 | 0.282479 | 0.000032 | 0.000280 | 0.000002 | 0.006355 | 0.000066 | 5354 | 62 | 11 | −10.4 | 1.3 |
JAN14A67 | 91500 | 0.282560 | 0.000024 | 0.000285 | 0.000001 | 0.006649 | 0.000038 | 6252 | 73 | 13 | −7.5 | 1.0 |
Average | 0.282441 | 0.000032 | 0.000291 | 0.000001 | 0.006790 | 0.000036 | 76,314.7 | 914.5442 | 164.9912 | −11.7 | 1.2 | |
N = 6 | ||||||||||||
Standard Zircon GJ-1 as Unknown (Reference 176Hf/177Hf Value = 0.282000 ± 23, 2SD [101]) | ||||||||||||
JAN14A64 | GJ-1 | 0.282045 | 0.000027 | 0.000259 | 0.000001 | 0.005945 | 0.000035 | 6369 | 66 | 12 | −25.7 | 1.1 |
JAN14A65 | GJ-1 | 0.282150 | 0.000021 | 0.000260 | 0.000000 | 0.005962 | 0.000019 | 9239 | 96 | 18 | −22.0 | 0.9 |
Average | 0.282097 | 0.000024 | 0.000259 | 0.000000 | 0.005953 | 0.000027 | 7804 | 81 | 15 | −23.9 | 1.0 | |
N = 2 |
Spot No. | Th | U | Th/U | Isotopic Ratios | Age (Ma) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ppm | ppm | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | ||
JS26 (Coarse-grained Meta-Quartz Sandstone) | |||||||||||||||
JS26-01 | 176 | 577 | 0.3 | 0.1784 | 0.0023 | 12.9316 | 0.1766 | 0.5230 | 0.0062 | 2639 | 21 | 2675 | 13 | 2712 | 26 |
JS26-02 | 134 | 322 | 0.4 | 0.1793 | 0.0027 | 12.9745 | 0.2060 | 0.5221 | 0.0065 | 2646 | 25 | 2678 | 15 | 2708 | 27 |
JS26-03 | 219 | 665 | 0.3 | 0.1793 | 0.0026 | 12.4993 | 0.1858 | 0.5027 | 0.0061 | 2647 | 18 | 2643 | 14 | 2626 | 26 |
JS26-04 | 364 | 798 | 0.5 | 0.1795 | 0.0029 | 11.8279 | 0.1908 | 0.4743 | 0.0054 | 2650 | 27 | 2591 | 15 | 2502 | 24 |
JS26-05 | 267 | 843 | 0.3 | 0.1793 | 0.0032 | 12.8253 | 0.2269 | 0.5154 | 0.0064 | 2647 | 29 | 2667 | 17 | 2680 | 27 |
JS26-06 | 136 | 411 | 0.3 | 0.1825 | 0.0037 | 13.0676 | 0.2632 | 0.5168 | 0.0069 | 2676 | 33 | 2685 | 19 | 2685 | 29 |
JS26-07 | 291 | 721 | 0.4 | 0.1767 | 0.0035 | 12.5000 | 0.2572 | 0.5085 | 0.0068 | 2622 | 32 | 2643 | 19 | 2650 | 29 |
JS26-08 | 84.8 | 239 | 0.4 | 0.1975 | 0.0040 | 14.0721 | 0.2982 | 0.5130 | 0.0069 | 2805 | 33 | 2755 | 20 | 2670 | 29 |
JS26-09 | 206 | 579 | 0.4 | 0.1803 | 0.0033 | 13.3069 | 0.2550 | 0.5321 | 0.0074 | 2655 | 31 | 2702 | 18 | 2750 | 31 |
JS26-10 | 79.2 | 212 | 0.4 | 0.1825 | 0.0037 | 13.0914 | 0.2671 | 0.5178 | 0.0070 | 2676 | 33 | 2686 | 19 | 2690 | 30 |
JS26-11 | 116 | 93.9 | 1.2 | 0.2099 | 0.0049 | 16.3923 | 0.3844 | 0.5655 | 0.0081 | 2905 | 38 | 2900 | 22 | 2889 | 33 |
JS26-12 | 152 | 450 | 0.3 | 0.1788 | 0.0037 | 12.9467 | 0.2666 | 0.5222 | 0.0066 | 2643 | 34 | 2676 | 19 | 2708 | 28 |
JS26-13 | 163 | 364 | 0.4 | 0.1833 | 0.0038 | 13.3961 | 0.2850 | 0.5265 | 0.0069 | 2682 | 34 | 2708 | 20 | 2727 | 29 |
JS26-14 | 173 | 286 | 0.6 | 0.1610 | 0.0033 | 10.7773 | 0.2255 | 0.4824 | 0.0063 | 2466 | 34 | 2504 | 19 | 2538 | 28 |
JS26-15 | 58.1 | 126 | 0.5 | 0.1876 | 0.0041 | 14.0461 | 0.3182 | 0.5405 | 0.0075 | 2721 | 36 | 2753 | 21 | 2786 | 31 |
JS26-16 | 220 | 633 | 0.3 | 0.1926 | 0.0034 | 14.5333 | 0.2636 | 0.5428 | 0.0068 | 2764 | 30 | 2785 | 17 | 2795 | 28 |
JS26-17 | 303 | 654 | 0.5 | 0.1802 | 0.0034 | 13.1500 | 0.2496 | 0.5250 | 0.0067 | 2655 | 32 | 2690 | 18 | 2721 | 28 |
JS26-18 | 20.7 | 54.7 | 0.4 | 0.2136 | 0.0060 | 16.6589 | 0.4684 | 0.5654 | 0.0096 | 3000 | 51 | 2915 | 27 | 2889 | 39 |
JS26-19 | 282 | 478 | 0.6 | 0.1267 | 0.0027 | 6.7070 | 0.1430 | 0.3812 | 0.0051 | 2054 | 43 | 2074 | 19 | 2082 | 24 |
JS26-20 | 127 | 401 | 0.3 | 0.1774 | 0.0035 | 12.9068 | 0.2590 | 0.5238 | 0.0069 | 2629 | 32 | 2673 | 19 | 2715 | 29 |
JS26-21 | 222 | 520 | 0.4 | 0.1774 | 0.0032 | 12.3463 | 0.2207 | 0.5015 | 0.0060 | 2629 | 30 | 2631 | 17 | 2620 | 26 |
JS26-22 | 98.9 | 234 | 0.4 | 0.2039 | 0.0040 | 15.5934 | 0.3216 | 0.5519 | 0.0075 | 2858 | 32 | 2852 | 20 | 2833 | 31 |
JS26-23 | 239 | 504 | 0.5 | 0.1750 | 0.0032 | 12.2054 | 0.2369 | 0.5030 | 0.0064 | 2606 | 30 | 2620 | 18 | 2627 | 27 |
JS26-24 | 163 | 531 | 0.3 | 0.1764 | 0.0035 | 12.7515 | 0.2628 | 0.5218 | 0.0068 | 2619 | 33 | 2661 | 19 | 2707 | 29 |
JS26-25 | 106 | 330 | 0.3 | 0.1788 | 0.0037 | 13.0864 | 0.2782 | 0.5296 | 0.0071 | 2643 | 34 | 2686 | 20 | 2740 | 30 |
JS26-26 | 332 | 552 | 0.6 | 0.1244 | 0.0026 | 6.5617 | 0.1395 | 0.3822 | 0.0052 | 2020 | 37 | 2054 | 19 | 2086 | 24 |
JS26-27 | 245 | 766 | 0.3 | 0.1747 | 0.0030 | 12.8268 | 0.2303 | 0.5306 | 0.0066 | 2603 | 29 | 2667 | 17 | 2744 | 28 |
JS26-28 | 131 | 163 | 0.8 | 0.1802 | 0.0037 | 12.8929 | 0.2792 | 0.5178 | 0.0070 | 2654 | 34 | 2672 | 20 | 2690 | 30 |
JS26-29 | 245 | 770 | 0.3 | 0.1779 | 0.0031 | 13.1151 | 0.2402 | 0.5324 | 0.0066 | 2635 | 28 | 2688 | 17 | 2752 | 28 |
JS26-30 | 124 | 458 | 0.3 | 0.1763 | 0.0033 | 12.5621 | 0.2429 | 0.5152 | 0.0066 | 2620 | 31 | 2647 | 18 | 2679 | 28 |
JS26-31 | 157 | 464 | 0.3 | 0.1751 | 0.0035 | 12.6265 | 0.2644 | 0.5209 | 0.0068 | 2606 | 33 | 2652 | 20 | 2703 | 29 |
JS26-32 | 149 | 431 | 0.3 | 0.1772 | 0.0034 | 12.8077 | 0.2474 | 0.5229 | 0.0067 | 2627 | 32 | 2666 | 18 | 2711 | 28 |
JS26-33 | 209 | 705 | 0.3 | 0.1759 | 0.0030 | 12.7158 | 0.2308 | 0.5223 | 0.0066 | 2615 | 28 | 2659 | 17 | 2709 | 28 |
JS26-34 | 71.3 | 149 | 0.5 | 0.1581 | 0.0036 | 10.3641 | 0.2466 | 0.4750 | 0.0067 | 2435 | 39 | 2468 | 22 | 2505 | 29 |
JS26-35 | 163 | 106 | 1.5 | 0.1409 | 0.0038 | 7.9153 | 0.2171 | 0.4079 | 0.0060 | 2239 | 47 | 2221 | 25 | 2205 | 27 |
JS26-36 | 120 | 193 | 0.6 | 0.1919 | 0.0043 | 13.6799 | 0.3137 | 0.5161 | 0.0068 | 2758 | 37 | 2728 | 22 | 2682 | 29 |
JS26-37 | 28.8 | 73.1 | 0.4 | 0.1841 | 0.0051 | 13.0671 | 0.3689 | 0.5154 | 0.0083 | 2690 | 45 | 2685 | 27 | 2680 | 35 |
JS26-38 | 305 | 511 | 0.6 | 0.1819 | 0.0034 | 13.5033 | 0.2601 | 0.5354 | 0.0068 | 2670 | 32 | 2716 | 18 | 2764 | 28 |
JS26-39 | 92.9 | 246 | 0.4 | 0.1782 | 0.0035 | 13.4623 | 0.2768 | 0.5452 | 0.0077 | 2637 | 33 | 2713 | 19 | 2805 | 32 |
JS26-40 | 184 | 144 | 1.3 | 0.1177 | 0.0031 | 6.1196 | 0.1656 | 0.3750 | 0.0055 | 1921 | 48 | 1993 | 24 | 2053 | 26 |
JS26-41 | 140 | 443 | 0.3 | 0.1739 | 0.0034 | 12.6780 | 0.2558 | 0.5237 | 0.0069 | 2595 | 32 | 2656 | 19 | 2715 | 29 |
JS26-42 | 113 | 234 | 0.5 | 0.1733 | 0.0039 | 12.3381 | 0.2739 | 0.5126 | 0.0071 | 2590 | 37 | 2630 | 21 | 2668 | 30 |
JS26-43 | 114 | 291 | 0.4 | 0.1734 | 0.0037 | 12.5839 | 0.2677 | 0.5226 | 0.0072 | 2590 | 37 | 2649 | 20 | 2710 | 31 |
JS26-44 | 215 | 459 | 0.5 | 0.2063 | 0.0039 | 17.5716 | 0.3461 | 0.6117 | 0.0081 | 2877 | 31 | 2967 | 19 | 3077 | 33 |
JS26-45 | 169 | 466 | 0.4 | 0.1778 | 0.0033 | 13.0506 | 0.2463 | 0.5283 | 0.0069 | 2632 | 32 | 2683 | 18 | 2734 | 29 |
JS26-46 | 256 | 740 | 0.3 | 0.1737 | 0.0031 | 12.4875 | 0.2300 | 0.5173 | 0.0067 | 2594 | 29 | 2642 | 17 | 2688 | 28 |
JS26-47 | 11.8 | 50.3 | 0.2 | 0.2049 | 0.0060 | 15.3118 | 0.4507 | 0.5458 | 0.0095 | 2866 | 48 | 2835 | 28 | 2808 | 40 |
JS26-48 | 167 | 490 | 0.3 | 0.1739 | 0.0035 | 12.5055 | 0.2574 | 0.5184 | 0.0068 | 2595 | 33 | 2643 | 19 | 2692 | 29 |
JS26-49 | 128 | 345 | 0.4 | 0.1770 | 0.0037 | 12.8091 | 0.2722 | 0.5227 | 0.0071 | 2625 | 35 | 2666 | 20 | 2711 | 30 |
JS26-50 | 130 | 169 | 0.8 | 0.1803 | 0.0039 | 12.3890 | 0.2603 | 0.4979 | 0.0068 | 2657 | 36 | 2634 | 20 | 2605 | 29 |
JS26-51 | 268 | 348 | 0.8 | 0.2174 | 0.0037 | 17.9769 | 0.3200 | 0.5966 | 0.0077 | 2961 | −6 | 2989 | 17 | 3016 | 31 |
JS26-52 | 291 | 493 | 0.6 | 0.1905 | 0.0030 | 12.8817 | 0.2397 | 0.4876 | 0.0075 | 2747 | 26 | 2671 | 18 | 2560 | 32 |
JS26-53 | 191 | 478 | 0.4 | 0.1488 | 0.0022 | 9.2644 | 0.1427 | 0.4491 | 0.0054 | 2332 | 26 | 2364 | 14 | 2391 | 24 |
JS26-54 | 225 | 577 | 0.4 | 0.1813 | 0.0024 | 12.9805 | 0.1833 | 0.5161 | 0.0064 | 2665 | 22 | 2678 | 13 | 2683 | 27 |
JS26-55 | 162 | 435 | 0.4 | 0.1790 | 0.0024 | 12.6378 | 0.1818 | 0.5088 | 0.0063 | 2644 | 23 | 2653 | 14 | 2651 | 27 |
JS26-56 | 328 | 747 | 0.4 | 0.1788 | 0.0022 | 11.1839 | 0.1434 | 0.4500 | 0.0050 | 2642 | 20 | 2539 | 12 | 2395 | 22 |
JS26-57 | 92.1 | 129 | 0.7 | 0.1147 | 0.0031 | 5.2414 | 0.1444 | 0.3317 | 0.0047 | 1876 | 49 | 1859 | 24 | 1846 | 23 |
JS26-58 | 103 | 245 | 0.4 | 0.2050 | 0.0029 | 15.4939 | 0.2221 | 0.5447 | 0.0064 | 2866 | 28 | 2846 | 14 | 2803 | 27 |
JS26-59 | 182 | 368 | 0.5 | 0.1998 | 0.0028 | 14.9607 | 0.2302 | 0.5395 | 0.0069 | 2824 | 23 | 2813 | 15 | 2781 | 29 |
JS26-60 | 86.2 | 184 | 0.5 | 0.1788 | 0.0028 | 12.3345 | 0.2047 | 0.4972 | 0.0065 | 2642 | 25 | 2630 | 16 | 2602 | 28 |
JS14-1 (Medium-coarse-grained Meta-quartz Sandstone) | |||||||||||||||
JS14-1-01 | 567 | 271 | 2.1 | 0.1508 | 0.0023 | 8.8459 | 0.1386 | 0.4243 | 0.0055 | 2355 | 26 | 2322 | 14 | 2280 | 25 |
JS14-1-02 | 112 | 188 | 0.6 | 0.0957 | 0.0022 | 3.8223 | 0.0882 | 0.2889 | 0.0038 | 1543 | 43 | 1597 | 19 | 1636 | 19 |
JS14-1-03 | 317 | 447 | 0.7 | 0.0975 | 0.0017 | 3.5198 | 0.0626 | 0.2606 | 0.0032 | 1577 | 33 | 1532 | 14 | 1493 | 16 |
JS14-1-04 | 425 | 787 | 0.5 | 0.0949 | 0.0016 | 3.6276 | 0.0635 | 0.2756 | 0.0034 | 1528 | 32 | 1556 | 14 | 1569 | 17 |
JS14-1-05 | 170 | 330 | 0.5 | 0.1764 | 0.0031 | 12.3465 | 0.2224 | 0.5046 | 0.0064 | 2620 | 30 | 2631 | 17 | 2634 | 27 |
JS14-1-06 | 128 | 330 | 0.4 | 0.1773 | 0.0034 | 12.4306 | 0.2440 | 0.5057 | 0.0066 | 2627 | 32 | 2637 | 18 | 2638 | 28 |
JS14-1-07 | 258 | 313 | 0.8 | 0.0950 | 0.0021 | 3.6545 | 0.0855 | 0.2776 | 0.0039 | 1529 | 43 | 1561 | 19 | 1579 | 20 |
JS14-1-08 | 186 | 456 | 0.4 | 0.1354 | 0.0023 | 7.7327 | 0.1367 | 0.4120 | 0.0054 | 2169 | 30 | 2200 | 16 | 2224 | 25 |
JS14-1-09 | 278 | 394 | 0.7 | 0.0985 | 0.0018 | 3.7681 | 0.0705 | 0.2768 | 0.0036 | 1595 | 34 | 1586 | 15 | 1575 | 18 |
JS14-1-10 | 329 | 922 | 0.4 | 0.1788 | 0.0024 | 12.4490 | 0.1788 | 0.5018 | 0.0061 | 2643 | 22 | 2639 | 13 | 2621 | 26 |
JS14-1-11 | 201 | 501 | 0.4 | 0.2036 | 0.0026 | 15.5242 | 0.2131 | 0.5501 | 0.0066 | 2855 | 21 | 2848 | 13 | 2826 | 27 |
JS14-1-12 | 397 | 577 | 0.7 | 0.0987 | 0.0015 | 3.7787 | 0.0588 | 0.2765 | 0.0034 | 1600 | 28 | 1588 | 13 | 1574 | 17 |
JS14-1-13 | 134 | 661 | 0.2 | 0.1133 | 0.0016 | 5.2247 | 0.0817 | 0.3324 | 0.0040 | 1854 | 26 | 1857 | 13 | 1850 | 19 |
JS14-1-14 | 165 | 281 | 0.6 | 0.1026 | 0.0021 | 3.8971 | 0.0815 | 0.2745 | 0.0035 | 1672 | 38 | 1613 | 17 | 1563 | 17 |
JS14-1-15 | 164 | 287 | 0.6 | 0.1000 | 0.0022 | 3.8973 | 0.0880 | 0.2815 | 0.0037 | 1625 | 41 | 1613 | 18 | 1599 | 19 |
JS14-1-16 | 146 | 218 | 0.7 | 0.2533 | 0.0044 | 22.2843 | 0.4101 | 0.6345 | 0.0081 | 3205 | 28 | 3196 | 18 | 3167 | 32 |
JS14-1-17 | 147 | 289 | 0.5 | 0.1003 | 0.0023 | 3.8694 | 0.0889 | 0.2795 | 0.0038 | 1631 | 43 | 1607 | 19 | 1589 | 19 |
JS14-1-18 | 333 | 653 | 0.5 | 0.1001 | 0.0022 | 3.9440 | 0.0880 | 0.2847 | 0.0038 | 1628 | 40 | 1623 | 18 | 1615 | 19 |
JS14-1-19 | 369 | 489 | 0.8 | 0.0912 | 0.0021 | 3.0993 | 0.0735 | 0.2450 | 0.0032 | 1451 | 44 | 1433 | 18 | 1413 | 17 |
JS14-1-20 | 114 | 267 | 0.4 | 0.1862 | 0.0036 | 13.3860 | 0.2705 | 0.5195 | 0.0069 | 2708 | 32 | 2707 | 19 | 2697 | 29 |
JS14-1-21 | 197 | 376 | 0.5 | 0.1386 | 0.0028 | 7.6630 | 0.1629 | 0.3995 | 0.0053 | 2210 | 40 | 2192 | 19 | 2167 | 24 |
JS14-1-22 | 100 | 178 | 0.6 | 0.0992 | 0.0025 | 3.8195 | 0.1010 | 0.2792 | 0.0039 | 1610 | 48 | 1597 | 21 | 1587 | 20 |
JS14-1-23 | 616 | 611 | 1.0 | 0.2005 | 0.0036 | 13.6012 | 0.2520 | 0.4899 | 0.0060 | 2831 | −4 | 2722 | 18 | 2570 | 26 |
JS14-1-24 | 275 | 253 | 1.1 | 0.1004 | 0.0024 | 3.9944 | 0.0959 | 0.2885 | 0.0040 | 1631 | 44 | 1633 | 20 | 1634 | 20 |
JS14-1-25 | 439 | 450 | 1.0 | 0.1012 | 0.0023 | 3.7954 | 0.0895 | 0.2716 | 0.0038 | 1656 | 42 | 1592 | 19 | 1549 | 19 |
JS14-1-26 | 126 | 191 | 0.7 | 0.1029 | 0.0028 | 4.0177 | 0.1147 | 0.2834 | 0.0042 | 1677 | 51 | 1638 | 23 | 1608 | 21 |
JS14-1-27 | 187 | 363 | 0.5 | 0.2024 | 0.0036 | 15.8306 | 0.3049 | 0.5653 | 0.0076 | 2846 | 30 | 2867 | 18 | 2888 | 31 |
JS14-1-28 | 176 | 219 | 0.8 | 0.0991 | 0.0022 | 3.9677 | 0.0938 | 0.2898 | 0.0041 | 1609 | 42 | 1628 | 19 | 1640 | 20 |
JS14-1-29 | 141 | 205 | 0.7 | 0.2033 | 0.0038 | 15.6861 | 0.3137 | 0.5591 | 0.0079 | 2853 | 31 | 2858 | 19 | 2863 | 33 |
JS14-1-30 | 301 | 478 | 0.6 | 0.0968 | 0.0020 | 3.8143 | 0.0806 | 0.2853 | 0.0037 | 1563 | 238 | 1596 | 17 | 1618 | 19 |
JS14-1-31 | 78.2 | 184 | 0.4 | 0.1008 | 0.0026 | 3.9819 | 0.1101 | 0.2858 | 0.0042 | 1639 | 48 | 1631 | 22 | 1620 | 21 |
JS14-1-32 | 419 | 607 | 0.7 | 0.0970 | 0.0019 | 3.7122 | 0.0755 | 0.2770 | 0.0037 | 1566 | 37 | 1574 | 16 | 1576 | 18 |
JS14-1-33 | 93.1 | 160 | 0.6 | 0.1016 | 0.0027 | 3.8868 | 0.1061 | 0.2779 | 0.0040 | 1654 | 50 | 1611 | 22 | 1581 | 20 |
JS14-1-34 | 662 | 620 | 1.1 | 0.0996 | 0.0019 | 3.6683 | 0.0725 | 0.2663 | 0.0035 | 1617 | 37 | 1564 | 16 | 1522 | 18 |
JS14-1-35 | 254 | 609 | 0.4 | 0.1623 | 0.0029 | 10.3763 | 0.1953 | 0.4617 | 0.0059 | 2479 | 30 | 2469 | 17 | 2447 | 26 |
JS14-1-37 | 580 | 858 | 0.7 | 0.1400 | 0.0027 | 7.4575 | 0.1585 | 0.3837 | 0.0054 | 2227 | 33 | 2168 | 19 | 2094 | 25 |
JS14-1-38 | 212 | 365 | 0.6 | 0.0996 | 0.0021 | 3.8566 | 0.0820 | 0.2796 | 0.0037 | 1617 | 39 | 1605 | 17 | 1589 | 19 |
JS14-1-39 | 178 | 453 | 0.4 | 0.1914 | 0.0030 | 13.3165 | 0.2171 | 0.5016 | 0.0061 | 2754 | 26 | 2702 | 15 | 2621 | 26 |
JS14-1-40 | 195 | 432 | 0.5 | 0.1919 | 0.0028 | 13.7623 | 0.2093 | 0.5171 | 0.0063 | 2758 | 25 | 2733 | 14 | 2687 | 27 |
JS14-1-41 | 361 | 815 | 0.4 | 0.1798 | 0.0022 | 12.6775 | 0.1773 | 0.5082 | 0.0066 | 2652 | 20 | 2656 | 13 | 2649 | 28 |
JS14-1-42 | 478 | 574 | 0.8 | 0.0971 | 0.0014 | 3.8071 | 0.0640 | 0.2820 | 0.0035 | 1569 | 28 | 1594 | 14 | 1602 | 17 |
JS14-1-43 | 86.0 | 155 | 0.6 | 0.1018 | 0.0025 | 4.0389 | 0.1033 | 0.2872 | 0.0041 | 1658 | 46 | 1642 | 21 | 1628 | 20 |
JS14-1-44 | 231 | 275 | 0.8 | 0.0992 | 0.0019 | 3.8168 | 0.0773 | 0.2777 | 0.0037 | 1610 | 41 | 1596 | 16 | 1580 | 19 |
JS14-1-45 | 110 | 284 | 0.4 | 0.1006 | 0.0019 | 3.9248 | 0.0772 | 0.2819 | 0.0037 | 1635 | 36 | 1619 | 16 | 1601 | 18 |
JS14-1-46 | 124 | 232 | 0.5 | 0.1000 | 0.0024 | 3.9205 | 0.0958 | 0.2832 | 0.0039 | 1633 | 44 | 1618 | 20 | 1607 | 20 |
JS14-1-47 | 187 | 331 | 0.6 | 0.1030 | 0.0022 | 3.9315 | 0.0864 | 0.2762 | 0.0037 | 1680 | 39 | 1620 | 18 | 1572 | 19 |
JS14-1-48 | 221 | 537 | 0.4 | 0.1813 | 0.0035 | 12.6261 | 0.2520 | 0.5019 | 0.0066 | 2665 | 33 | 2652 | 19 | 2622 | 28 |
JS14-1-49 | 124 | 309 | 0.4 | 0.1359 | 0.0029 | 7.3882 | 0.1619 | 0.3922 | 0.0051 | 2176 | 37 | 2160 | 20 | 2133 | 24 |
JS14-1-50 | 417 | 797 | 0.5 | 0.1008 | 0.0019 | 3.8209 | 0.0756 | 0.2734 | 0.0035 | 1639 | 35 | 1597 | 16 | 1558 | 17 |
JS14-1-51 | 541 | 821 | 0.7 | 0.1237 | 0.0022 | 5.9527 | 0.1217 | 0.3464 | 0.0048 | 2010 | 33 | 1969 | 18 | 1917 | 23 |
JS14-1-52 | 1976 | 1305 | 1.5 | 0.1380 | 0.0024 | 6.2957 | 0.1176 | 0.3292 | 0.0046 | 2203 | 30 | 2018 | 16 | 1834 | 22 |
JS14-1-53 | 282 | 399 | 0.7 | 0.0997 | 0.0022 | 3.7646 | 0.0833 | 0.2733 | 0.0038 | 1620 | 42 | 1585 | 18 | 1558 | 19 |
JS14-1-54 | 127 | 369 | 0.3 | 0.1827 | 0.0037 | 12.9191 | 0.2673 | 0.5101 | 0.0067 | 2680 | 33 | 2674 | 20 | 2657 | 28 |
JS14-1-56 | 779 | 1436 | 0.5 | 0.0991 | 0.0019 | 3.7319 | 0.0747 | 0.2714 | 0.0034 | 1609 | 36 | 1578 | 16 | 1548 | 17 |
JS14-1-57 | 471 | 562 | 0.8 | 0.0995 | 0.0020 | 3.8234 | 0.0798 | 0.2771 | 0.0036 | 1617 | 38 | 1598 | 17 | 1577 | 18 |
JS14-1-58 | 2674 | 1198 | 2.2 | 0.0977 | 0.0019 | 3.0563 | 0.0649 | 0.2256 | 0.0033 | 1581 | 36 | 1422 | 16 | 1311 | 17 |
JS14-1-59 | 160 | 324 | 0.5 | 0.1350 | 0.0026 | 7.2039 | 0.1438 | 0.3852 | 0.0053 | 2165 | 33 | 2137 | 18 | 2100 | 25 |
JS14-1-60 | 388 | 499 | 0.8 | 0.0992 | 0.0019 | 3.8732 | 0.0805 | 0.2813 | 0.0037 | 1609 | 42 | 1608 | 17 | 1598 | 19 |
JS14-1-61 | 242 | 246 | 1.0 | 0.1216 | 0.0028 | 6.1767 | 0.1459 | 0.3658 | 0.0049 | 1981 | 41 | 2001 | 21 | 2010 | 23 |
JS14-1-62 | 217 | 383 | 0.6 | 0.0987 | 0.0024 | 3.9299 | 0.0950 | 0.2873 | 0.0038 | 2000 | 51 | 1620 | 20 | 1628 | 19 |
JS14-1-63 | 289 | 378 | 0.8 | 0.1013 | 0.0026 | 3.9147 | 0.0994 | 0.2783 | 0.0039 | 1648 | 48 | 1617 | 21 | 1583 | 19 |
JS14-1-64 | 70.3 | 106 | 0.7 | 0.1893 | 0.0049 | 13.7514 | 0.3560 | 0.5226 | 0.0076 | 2737 | 48 | 2733 | 25 | 2710 | 32 |
JS14-1-65 | 499 | 482 | 1.0 | 0.0997 | 0.0023 | 3.8376 | 0.0894 | 0.2762 | 0.0036 | 1618 | 43 | 1601 | 19 | 1572 | 18 |
JS14-1-66 | 116 | 195 | 0.6 | 0.0995 | 0.0027 | 4.0719 | 0.1109 | 0.2950 | 0.0044 | 1617 | 50 | 1649 | 22 | 1666 | 22 |
JS14-1-67 | 358 | 422 | 0.86 | 0.0987 | 0.0023 | 3.8628 | 0.0893 | 0.2809 | 0.0036 | 2000 | 38 | 1606 | 19 | 1596 | 18 |
JS14-1-68 | 396 | 482 | 0.86 | 0.1007 | 0.0024 | 3.9829 | 0.0926 | 0.2844 | 0.0037 | 1639 | 43 | 1631 | 19 | 1614 | 19 |
JS14-1-69 | 164 | 461 | 0.4 | 0.1851 | 0.0042 | 13.4459 | 0.3149 | 0.5215 | 0.0073 | 2700 | 38 | 2711 | 22 | 2705 | 31 |
JS14-1-70 | 113 | 272 | 0.4 | 0.2159 | 0.0052 | 16.9700 | 0.4043 | 0.5652 | 0.0077 | 2950 | 39 | 2933 | 23 | 2888 | 32 |
JS14-1-71 | 214 | 410 | 0.5 | 0.0981 | 0.0024 | 3.8689 | 0.0953 | 0.2833 | 0.0038 | 1588 | 45 | 1607 | 20 | 1608 | 19 |
JS14-1-72 | 1193 | 858 | 1.4 | 0.0982 | 0.0021 | 3.8954 | 0.0849 | 0.2847 | 0.0038 | 1591 | 41 | 1613 | 18 | 1615 | 19 |
JS14-1-73 | 164 | 424 | 0.4 | 0.1852 | 0.0038 | 13.4894 | 0.2754 | 0.5229 | 0.0065 | 2702 | 33 | 2715 | 19 | 2711 | 28 |
JS14-1-74 | 239 | 601 | 0.4 | 0.1807 | 0.0035 | 12.8931 | 0.2617 | 0.5124 | 0.0070 | 2659 | 31 | 2672 | 19 | 2667 | 30 |
JS14-1-75 | 111 | 205 | 0.5 | 0.0985 | 0.0029 | 3.8368 | 0.1107 | 0.2820 | 0.0039 | 1595 | 56 | 1601 | 23 | 1601 | 20 |
JS14-2 (Medium-coarse-grained Meta-quartz Sandstone) | |||||||||||||||
JS14-2-1 | 152 | 484 | 0.3 | 0.1316 | 0.0017 | 6.6251 | 0.1102 | 0.3617 | 0.0041 | 2120 | 22 | 2063 | 15 | 1990 | 20 |
JS14-2-2 | 137 | 67 | 2.1 | 0.1006 | 0.0021 | 3.9675 | 0.0812 | 0.2856 | 0.0034 | 1635 | 37 | 1628 | 17 | 1620 | 17 |
JS14-2-3 | 18 | 72 | 0.2 | 0.1479 | 0.0027 | 9.0198 | 0.1745 | 0.4388 | 0.0046 | 2321 | 31 | 2340 | 18 | 2345 | 21 |
JS14-2-4 | 84 | 98 | 0.9 | 0.0995 | 0.0019 | 3.9210 | 0.0735 | 0.2841 | 0.0029 | 1617 | 35 | 1618 | 15 | 1612 | 15 |
JS14-2-5 | 89 | 148 | 0.6 | 0.0978 | 0.0018 | 3.8619 | 0.0728 | 0.2843 | 0.0030 | 1583 | 35 | 1606 | 15 | 1613 | 15 |
JS14-2-6 | 46 | 81 | 0.6 | 0.1881 | 0.0034 | 13.9450 | 0.2581 | 0.5336 | 0.0063 | 2725 | 30 | 2746 | 18 | 2756 | 26 |
JS14-2-7 | 184 | 190 | 1.0 | 0.1412 | 0.0024 | 8.1466 | 0.1448 | 0.4151 | 0.0050 | 2243 | 30 | 2247 | 16 | 2238 | 23 |
JS14-2-8 | 236 | 165 | 1.4 | 0.1953 | 0.0029 | 13.5167 | 0.2064 | 0.4969 | 0.0042 | 2787 | 24 | 2716 | 15 | 2600 | 18 |
JS14-2-9 | 48 | 86 | 0.6 | 0.1018 | 0.0020 | 3.9292 | 0.0818 | 0.2785 | 0.0030 | 1657 | 37 | 1620 | 17 | 1584 | 15 |
JS14-2-10 | 168 | 225 | 0.7 | 0.1352 | 0.0020 | 7.4124 | 0.1319 | 0.3942 | 0.0045 | 2169 | 25 | 2162 | 16 | 2142 | 21 |
JS14-2-11 | 130 | 224 | 0.6 | 0.1776 | 0.0026 | 12.0654 | 0.1906 | 0.4900 | 0.0044 | 2631 | 25 | 2610 | 15 | 2571 | 19 |
JS14-2-12 | 80 | 102 | 0.8 | 0.0994 | 0.0021 | 3.9278 | 0.0861 | 0.2859 | 0.0031 | 1613 | 39 | 1619 | 18 | 1621 | 15 |
JS14-2-13 | 114 | 131 | 0.9 | 0.0976 | 0.0020 | 3.8802 | 0.0836 | 0.2878 | 0.0030 | 1589 | 38 | 1610 | 17 | 1631 | 15 |
JS14-2-14 | 304 | 515 | 0.6 | 0.0959 | 0.0014 | 3.4670 | 0.0543 | 0.2610 | 0.0019 | 1546 | 28 | 1520 | 12 | 1495 | 10 |
JS14-2-15 | 45 | 81 | 0.6 | 0.1029 | 0.0021 | 4.1844 | 0.0934 | 0.2940 | 0.0032 | 1676 | 38 | 1671 | 18 | 1662 | 16 |
JS14-2-16 | 57 | 93 | 0.6 | 0.1089 | 0.0022 | 4.3012 | 0.0941 | 0.2851 | 0.0029 | 1783 | 36 | 1694 | 18 | 1617 | 15 |
JS14-2-17 | 98 | 108 | 0.9 | 0.0971 | 0.0019 | 3.8585 | 0.0786 | 0.2874 | 0.0029 | 1570 | 36 | 1605 | 16 | 1629 | 15 |
JS14-2-18 | 574 | 313 | 1.8 | 0.1187 | 0.0018 | 4.8443 | 0.0790 | 0.2946 | 0.0027 | 1937 | 28 | 1793 | 14 | 1665 | 13 |
JS14-2-19 | 247 | 322 | 0.8 | 0.1319 | 0.0020 | 7.1390 | 0.1182 | 0.3905 | 0.0036 | 2124 | 26 | 2129 | 15 | 2125 | 17 |
JS14-2-20 | 247 | 171 | 1.4 | 0.0987 | 0.0017 | 3.8598 | 0.0685 | 0.2821 | 0.0026 | 1600 | 31 | 1605 | 14 | 1602 | 13 |
JS14-2-21 | 172 | 193 | 0.9 | 0.1394 | 0.0020 | 7.9578 | 0.1202 | 0.4120 | 0.0036 | 2220 | 25 | 2226 | 14 | 2224 | 17 |
JS14-2-22 | 850 | 350 | 2.4 | 0.1429 | 0.0019 | 8.3987 | 0.1165 | 0.4238 | 0.0034 | 2262 | 23 | 2275 | 13 | 2278 | 16 |
JS14-2-23 | 33 | 83 | 0.4 | 0.1810 | 0.0029 | 13.2559 | 0.2338 | 0.5279 | 0.0056 | 2662 | 27 | 2698 | 17 | 2733 | 24 |
JS14-2-24 | 69 | 146 | 0.5 | 0.1870 | 0.0031 | 13.6770 | 0.2431 | 0.5269 | 0.0054 | 2716 | 27 | 2728 | 17 | 2728 | 23 |
JS14-2-25 | 183 | 369 | 0.5 | 0.0979 | 0.0016 | 3.8415 | 0.0663 | 0.2829 | 0.0029 | 1584 | 30 | 1601 | 14 | 1606 | 15 |
JS14-2-26 | 102 | 148 | 0.7 | 0.0972 | 0.0018 | 3.7338 | 0.0680 | 0.2775 | 0.0026 | 1572 | 34 | 1579 | 15 | 1579 | 13 |
JS14-2-27 | 146 | 221 | 0.7 | 0.1942 | 0.0027 | 14.6311 | 0.2145 | 0.5425 | 0.0048 | 2789 | 56 | 2792 | 14 | 2794 | 20 |
JS14-2-28 | 135 | 209 | 0.6 | 0.1768 | 0.0026 | 11.9383 | 0.1747 | 0.4868 | 0.0040 | 2623 | 24 | 2600 | 14 | 2557 | 17 |
JS14-2-29 | 20 | 44 | 0.4 | 0.0991 | 0.0028 | 3.9989 | 0.1182 | 0.2931 | 0.0043 | 1609 | 54 | 1634 | 24 | 1657 | 21 |
JS14-2-30 | 1182 | 553 | 2.1 | 0.1224 | 0.0021 | 4.4443 | 0.1004 | 0.2614 | 0.0043 | 1992 | 36 | 1721 | 19 | 1497 | 22 |
Spot Position | 176Hf/177Hf | 1σ | 176Lu/177Hf | 1σ | 176Yb/177Hf | 1σ | εHf(0) | Age (Ma) | (176Hf/177Hf)i | εHf(t) (a) | 1σ | TDM1 (Ma) (b) | 1σ | fLu/Hf (d) | TDM2 (Ma) (c) | 1σ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
JS14-1-8 | 0.28137 | 0.000009 | 0.000609 | 0.000002 | 0.015213 | 0.000047 | −49.6 | 2169 | 0.281345 | −2 | 0.33 | 2601 | 25 | −0.98 | 2778 | 36 |
JS14-1-9 | 0.281831 | 0.000013 | 0.001155 | 0.000017 | 0.030212 | 0.000526 | −33.3 | 1595 | 0.281796 | 1 | 0.44 | 2003 | 35 | −0.97 | 2162 | 48 |
JS14-1-10 | 0.281118 | 0.000012 | 0.000614 | 0.000001 | 0.015143 | 0.000036 | −58.5 | 2643 | 0.281087 | −0.2 | 0.41 | 2939 | 31 | −0.98 | 3061 | 44 |
JS14-1-11 | 0.280988 | 0.000009 | 0.000974 | 0.000011 | 0.026265 | 0.000438 | −63.1 | 2855 | 0.280935 | −0.7 | 0.33 | 3143 | 25 | −0.97 | 3257 | 35 |
JS14-1-12 | 0.281841 | 0.000012 | 0.001618 | 0.000006 | 0.041546 | 0.000163 | −32.9 | 1600 | 0.281792 | 1 | 0.42 | 2013 | 33 | −0.95 | 2166 | 45 |
JS14-1-15 | 0.281831 | 0.000014 | 0.001161 | 0.000006 | 0.029219 | 0.000109 | −33.3 | 1625 | 0.281796 | 1.6 | 0.48 | 2002 | 38 | −0.97 | 2149 | 52 |
JS14-1-20 | 0.281142 | 0.000015 | 0.001009 | 0.000026 | 0.025892 | 0.000684 | −57.6 | 2708 | 0.28109 | 1.4 | 0.53 | 2938 | 40 | −0.97 | 3028 | 56 |
JS14-1-21 | 0.281385 | 0.00001 | 0.000902 | 0.000029 | 0.022993 | 0.000791 | −49.1 | 2210 | 0.281347 | −0.9 | 0.35 | 2600 | 27 | −0.97 | 2756 | 38 |
JS14-1-22 | 0.281721 | 0.00001 | 0.000387 | 0.000001 | 0.010348 | 0.000015 | −37.2 | 1610 | 0.281709 | −1.8 | 0.36 | 2112 | 27 | −0.99 | 2322 | 39 |
JS14-1-27 | 0.280968 | 0.00001 | 0.000575 | 0.000003 | 0.013891 | 0.000072 | −63.8 | 2846 | 0.280937 | −0.8 | 0.36 | 3137 | 27 | −0.98 | 3257 | 38 |
JS14-1-29 | 0.280979 | 0.000013 | 0.000383 | 0.000002 | 0.009072 | 0.000056 | −63.4 | 2853 | 0.280958 | 0.1 | 0.45 | 3107 | 34 | −0.99 | 3213 | 48 |
JS14-1-30 | 0.28177 | 0.000009 | 0.000349 | 0.000003 | 0.008611 | 0.000068 | −35.4 | 1563 | 0.281759 | −1.1 | 0.33 | 2044 | 25 | −0.99 | 2246 | 36 |
JS14-1-31 | 0.281758 | 0.000011 | 0.000826 | 0.000019 | 0.021909 | 0.000497 | −35.9 | 1639 | 0.281732 | −0.3 | 0.38 | 2086 | 29 | −0.98 | 2265 | 41 |
JS14-1-33 | 0.281788 | 0.000011 | 0.000831 | 0.000003 | 0.021656 | 0.000042 | −34.8 | 1654 | 0.281762 | 1.1 | 0.39 | 2045 | 30 | −0.97 | 2202 | 42 |
JS14-1-38 | 0.281852 | 0.000012 | 0.001548 | 0.000012 | 0.041435 | 0.000384 | −32.5 | 1617 | 0.281804 | 1.8 | 0.42 | 1995 | 34 | −0.95 | 2136 | 46 |
JS14-1-41 | 0.28109 | 0.00001 | 0.000642 | 0.000002 | 0.015934 | 0.000062 | −59.5 | 2652 | 0.281057 | −1.1 | 0.34 | 2980 | 26 | −0.98 | 3114 | 36 |
JS14-1-42 | 0.281827 | 0.000012 | 0.001058 | 0.000004 | 0.028237 | 0.00013 | −33.4 | 1569 | 0.281796 | 0.4 | 0.43 | 2003 | 33 | −0.97 | 2174 | 47 |
JS14-1-43 | 0.281777 | 0.000014 | 0.000702 | 0.000019 | 0.018293 | 0.000519 | −35.2 | 1658 | 0.281755 | 0.9 | 0.5 | 2053 | 39 | −0.98 | 2214 | 55 |
JS14-1-44 | 0.281811 | 0.000012 | 0.001651 | 0.000018 | 0.042405 | 0.000551 | −34 | 1610 | 0.281761 | 0.1 | 0.41 | 2057 | 32 | −0.95 | 2223 | 44 |
JS14-1-45 | 0.281776 | 0.000011 | 0.000389 | 0.000001 | 0.010064 | 0.000012 | −35.2 | 1635 | 0.281764 | 0.8 | 0.37 | 2037 | 28 | −0.99 | 2205 | 40 |
JS14-1-46 | 0.281802 | 0.000012 | 0.001123 | 0.000008 | 0.029011 | 0.000225 | −34.3 | 1633 | 0.281767 | 0.8 | 0.44 | 2042 | 34 | −0.97 | 2201 | 47 |
JS14-1-48 | 0.281113 | 0.00001 | 0.000665 | 0.000002 | 0.01675 | 0.000044 | −58.7 | 2665 | 0.281079 | 0 | 0.34 | 2951 | 26 | −0.98 | 3067 | 36 |
JS14-1-49 | 0.281349 | 0.00001 | 0.00055 | 0.000005 | 0.013541 | 0.000137 | −50.3 | 2176 | 0.281326 | −2.5 | 0.36 | 2625 | 27 | −0.98 | 2810 | 38 |
JS14-1-53 | 0.281799 | 0.000013 | 0.001367 | 0.000012 | 0.037372 | 0.000319 | −34.4 | 1620 | 0.281757 | 0.2 | 0.45 | 2059 | 35 | −0.96 | 2226 | 48 |
JS14-1-54 | 0.28109 | 0.00001 | 0.000686 | 0.000006 | 0.01732 | 0.000181 | −59.5 | 2680 | 0.281054 | −0.5 | 0.36 | 2984 | 27 | −0.98 | 3107 | 38 |
JS14-1-56 | 0.281774 | 0.00001 | 0.001214 | 0.000028 | 0.033927 | 0.000826 | −35.3 | 1609 | 0.281737 | −0.8 | 0.37 | 2085 | 29 | −0.96 | 2269 | 40 |
JS14-1-57 | 0.281842 | 0.00001 | 0.001279 | 0.000049 | 0.033601 | 0.001362 | −32.9 | 1617 | 0.281803 | 1.7 | 0.36 | 1994 | 28 | −0.96 | 2139 | 39 |
JS14-1-65 | 0.281831 | 0.000011 | 0.001248 | 0.000002 | 0.031292 | 0.000082 | −33.3 | 1618 | 0.281793 | 1.4 | 0.41 | 2008 | 32 | −0.96 | 2158 | 44 |
JS14-1-69 | 0.281097 | 0.00001 | 0.00054 | 0.000003 | 0.013527 | 0.000095 | −59.2 | 2700 | 0.281069 | 0.5 | 0.35 | 2962 | 26 | −0.98 | 3070 | 37 |
JS14-1-72 | 0.281853 | 0.000011 | 0.002498 | 0.000051 | 0.065916 | 0.001474 | −32.5 | 1591 | 0.281778 | 0.2 | 0.38 | 2045 | 31 | −0.92 | 2199 | 42 |
JS14-1-73 | 0.281073 | 0.00001 | 0.000574 | 0.000009 | 0.014528 | 0.000254 | −60.1 | 2702 | 0.281043 | −0.4 | 0.37 | 2998 | 28 | −0.98 | 3119 | 39 |
JS14-1-74 | 0.281097 | 0.00001 | 0.000666 | 0.000001 | 0.016486 | 0.000027 | −59.2 | 2659 | 0.281063 | −0.7 | 0.37 | 2972 | 28 | −0.98 | 3100 | 39 |
JS14-1-75 | 0.281765 | 0.000011 | 0.000714 | 0.000004 | 0.018449 | 0.000085 | −35.6 | 1595 | 0.281744 | −0.9 | 0.38 | 2070 | 29 | −0.98 | 2262 | 41 |
Spot No. | Ti | Y | Nb | Ce | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | Th | U |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
JS14-1-2 | 14 | 1128 | 3 | 7 | 11 | 15 | 7 | 57 | 15 | 140 | 43 | 156 | 28 | 246 | 43 | 6143 | 1 | 36 | 57 |
JS14-1-3 | 8 | 1247 | 13 | 23 | 6 | 9 | 2 | 42 | 13 | 140 | 47 | 186 | 36 | 313 | 56 | 6592 | 4 | 111 | 145 |
JS14-1-4 | 12 | 683 | 6 | 18 | 2 | 3 | 0 | 18 | 6 | 65 | 24 | 102 | 21 | 200 | 37 | 9331 | 3 | 147 | 253 |
JS14-1-7 | 9 | 1703 | 29 | 102 | 4 | 7 | 3 | 35 | 13 | 152 | 59 | 263 | 54 | 504 | 93 | 6034 | 6 | 91 | 101 |
JS14-1-9 | 10 | 1561 | 20 | 60 | 7 | 12 | 5 | 53 | 16 | 169 | 57 | 230 | 44 | 386 | 68 | 6663 | 5 | 90 | 117 |
JS14-1-12 | 6 | 2463 | 36 | 88 | 9 | 13 | 5 | 66 | 22 | 253 | 89 | 369 | 72 | 636 | 111 | 7287 | 7 | 146 | 198 |
JS14-1-14 | 13 | 1064 | 6 | 1137 | 743 | 142 | 13 | 134 | 21 | 153 | 42 | 142 | 25 | 216 | 37 | 8190 | 3 | 56 | 90 |
JS14-1-15 | 6 | 1027 | 28 | 90 | 3 | 5 | 2 | 25 | 9 | 103 | 38 | 157 | 31 | 275 | 48 | 6393 | 6 | 58 | 94 |
JS14-1-17 | 13 | 994 | 19 | 51 | 4 | 6 | 2 | 27 | 9 | 101 | 36 | 152 | 30 | 273 | 50 | 7219 | 7 | 54 | 97 |
JS14-1-18 | 8 | 784 | 12 | 25 | 2 | 3 | 0 | 17 | 6 | 71 | 27 | 123 | 26 | 257 | 49 | 10,565 | 5 | 120 | 219 |
JS14-1-19 | 8 | 2531 | 13 | 29 | 14 | 23 | 4 | 95 | 27 | 289 | 96 | 371 | 69 | 590 | 100 | 6801 | 4 | 138 | 169 |
JS14-1-22 | 24 | 561 | 5 | 9 | 3 | 6 | 1 | 21 | 7 | 67 | 22 | 84 | 16 | 143 | 24 | 8226 | 3 | 36 | 60 |
JS14-1-24 | 10 | 1922 | 13 | 76 | 7 | 12 | 3 | 53 | 19 | 207 | 72 | 295 | 58 | 522 | 91 | 7791 | 4 | 105 | 88 |
JS14-1-25 | 10 | 1169 | 29 | 103 | 4 | 7 | 3 | 34 | 11 | 122 | 43 | 173 | 33 | 294 | 50 | 6596 | 7 | 158 | 152 |
JS14-1-26 | 18 | 815 | 17 | 73 | 2 | 3 | 1 | 14 | 6 | 68 | 28 | 129 | 28 | 264 | 49 | 6893 | 4 | 46 | 65 |
JS14-1-28 | 8 | 1222 | 18 | 121 | 19 | 9 | 2 | 28 | 10 | 113 | 43 | 190 | 40 | 362 | 66 | 7072 | 5 | 66 | 76 |
JS14-1-30 | 19 | 466 | 3 | 19 | 1 | 3 | 0 | 11 | 4 | 43 | 16 | 69 | 15 | 143 | 26 | 9801 | 2 | 112 | 166 |
JS14-1-31 | 13 | 643 | 7 | 10 | 4 | 6 | 3 | 26 | 7 | 75 | 24 | 94 | 17 | 151 | 27 | 7997 | 2 | 29 | 64 |
JS14-1-32 | 7 | 1309 | 14 | 24 | 9 | 10 | 2 | 45 | 14 | 148 | 50 | 193 | 35 | 291 | 48 | 8024 | 4 | 154 | 209 |
JS14-1-33 | 18 | 1096 | 2 | 7 | 11 | 14 | 7 | 54 | 14 | 135 | 43 | 154 | 28 | 241 | 43 | 7068 | 1 | 34 | 55 |
JS14-1-34 | 11 | 1723 | 44 | 737 | 268 | 59 | 14 | 93 | 21 | 196 | 64 | 249 | 47 | 396 | 67 | 6893 | 9 | 244 | 214 |
JS14-1-38 | 11 | 1123 | 24 | 70 | 4 | 7 | 3 | 31 | 10 | 115 | 41 | 168 | 34 | 306 | 55 | 7682 | 7 | 82 | 130 |
JS14-1-42 | 9 | 1234 | 36 | 114 | 3 | 6 | 3 | 31 | 11 | 121 | 45 | 187 | 37 | 325 | 57 | 6958 | 8 | 180 | 201 |
JS14-1-43 | 12 | 1039 | 3 | 7 | 9 | 14 | 6 | 52 | 13 | 129 | 40 | 147 | 27 | 234 | 41 | 7519 | 1 | 34 | 55 |
JS14-1-45 | 6 | 584 | 11 | 18 | 3 | 4 | 1 | 19 | 6 | 64 | 22 | 87 | 17 | 150 | 26 | 9042 | 4 | 41 | 99 |
JS14-1-46 | 6 | 748 | 9 | 23 | 4 | 6 | 1 | 25 | 8 | 82 | 28 | 113 | 22 | 198 | 36 | 6546 | 3 | 46 | 81 |
JS14-1-47 | 16 | 1592 | 7 | 10 | 11 | 17 | 7 | 73 | 20 | 194 | 62 | 232 | 42 | 364 | 64 | 7591 | 3 | 73 | 120 |
JS14-1-50 | 7 | 1001 | 15 | 47 | 10 | 6 | 1 | 23 | 8 | 92 | 36 | 159 | 34 | 326 | 62 | 12,092 | 6 | 166 | 295 |
JS14-1-53 | 6 | 1003 | 17 | 25 | 3 | 7 | 2 | 37 | 12 | 117 | 39 | 152 | 29 | 258 | 45 | 7625 | 5 | 111 | 144 |
JS14-1-56 | 4 | 2084 | 26 | 895 | 508 | 114 | 2 | 147 | 31 | 267 | 82 | 308 | 57 | 478 | 79 | 9597 | 9 | 308 | 532 |
JS14-1-57 | 12 | 1359 | 35 | 117 | 5 | 8 | 3 | 35 | 12 | 138 | 50 | 207 | 41 | 362 | 63 | 8013 | 8 | 189 | 207 |
JS14-1-58 | 51 | 4816 | 16 | 48 | 54 | 122 | 50 | 437 | 102 | 756 | 187 | 612 | 105 | 851 | 139 | 7149 | 3 | 1029 | 439 |
JS14-1-60 | 7 | 1579 | 45 | 288 | 56 | 14 | 4 | 40 | 14 | 155 | 57 | 243 | 48 | 428 | 76 | 7508 | 9 | 164 | 187 |
JS14-1-63 | 21 | 2005 | 18 | 70 | 9 | 14 | 5 | 59 | 21 | 227 | 80 | 319 | 64 | 512 | 88 | 7342 | 6 | 113 | 136 |
JS14-1-65 | 11 | 1274 | 30 | 134 | 3 | 6 | 2 | 28 | 10 | 121 | 47 | 208 | 47 | 420 | 79 | 7800 | 7 | 196 | 174 |
JS14-1-66 | 21 | 1072 | 3 | 9 | 6 | 8 | 3 | 40 | 12 | 124 | 43 | 169 | 35 | 287 | 53 | 8654 | 1 | 47 | 72 |
JS14-1-68 | 6 | 1362 | 38 | 199 | 35 | 13 | 4 | 41 | 13 | 145 | 54 | 215 | 44 | 359 | 64 | 7444 | 9 | 158 | 176 |
JS14-1-71 | 3 | 1396 | 17 | 417 | 247 | 55 | 3 | 84 | 18 | 172 | 58 | 222 | 43 | 354 | 64 | 7272 | 5 | 88 | 153 |
JS14-1-72 | 12 | 2125 | 50 | 228 | 4 | 9 | 4 | 49 | 17 | 204 | 79 | 339 | 73 | 629 | 118 | 7241 | 12 | 479 | 315 |
JS14-1-75 | 6 | 691 | 9 | 26 | 3 | 6 | 1 | 27 | 8 | 82 | 29 | 110 | 22 | 189 | 35 | 7209 | 3 | 46 | 78 |
JS14-2-2 | 10 | 522 | 7 | 9 | 8 | 9 | 6 | 30 | 8 | 77 | 23 | 83 | 16 | 127 | 21 | 5349 | 3 | 146 | 67 |
JS14-2-4 | 7 | 1001 | 20 | 88 | 2 | 4 | 1 | 20 | 7 | 87 | 35 | 163 | 36 | 327 | 62 | 7996 | 5 | 91 | 100 |
JS14-2-5 | 8 | 993 | 8 | 16 | 4 | 7 | 1 | 36 | 11 | 116 | 39 | 152 | 29 | 236 | 42 | 9450 | 3 | 99 | 154 |
JS14-2-9 | 11 | 1540 | 5 | 11 | 10 | 17 | 8 | 97 | 29 | 229 | 62 | 207 | 38 | 298 | 51 | 8566 | 2 | 53 | 89 |
JS14-2-12 | 8 | 1169 | 25 | 95 | 2 | 4 | 2 | 22 | 8 | 102 | 42 | 188 | 43 | 385 | 73 | 7475 | 6 | 88 | 106 |
JS14-2-13 | 27 | 831 | 3 | 17 | 5 | 7 | 1 | 30 | 8 | 89 | 30 | 121 | 26 | 220 | 40 | 9480 | 1 | 127 | 136 |
JS14-2-14 | 6 | 3069 | 14 | 17 | 12 | 24 | 3 | 113 | 34 | 349 | 119 | 455 | 87 | 673 | 112 | 10,350 | 5 | 346 | 552 |
JS14-2-15 | 50 | 1078 | 8 | 17 | 13 | 14 | 5 | 53 | 14 | 136 | 42 | 157 | 30 | 245 | 44 | 7944 | 3 | 50 | 84 |
JS14-2-17 | 7 | 1004 | 20 | 94 | 2 | 4 | 1 | 21 | 7 | 87 | 36 | 161 | 36 | 328 | 62 | 8113 | 5 | 108 | 112 |
JS14-2-20 | 11 | 1763 | 33 | 259 | 44 | 15 | 4 | 47 | 15 | 171 | 64 | 274 | 58 | 506 | 91 | 6912 | 7 | 268 | 176 |
JS14-2-25 | 5 | 1145 | 19 | 16 | 3 | 7 | 0 | 33 | 11 | 124 | 44 | 179 | 36 | 298 | 50 | 10,250 | 6 | 206 | 396 |
JS14-2-26 | 12 | 2365 | 10 | 18 | 22 | 32 | 12 | 130 | 34 | 315 | 97 | 341 | 63 | 497 | 85 | 8189 | 4 | 119 | 161 |
JS14-2-29 | 27 | 394 | 6 | 18 | 7 | 3 | 1 | 14 | 4 | 46 | 15 | 59 | 13 | 108 | 19 | 8614 | 2 | 22 | 48 |
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Xie, X.; Yang, Z.; Zhang, H.; Polat, A.; Xu, Y.; Deng, X. Finding of Ca. 1.6 Ga Detrital Zircons from the Mesoproterozoic Dagushi Group, Northern Margin of the Yangtze Block. Minerals 2021, 11, 371. https://doi.org/10.3390/min11040371
Xie X, Yang Z, Zhang H, Polat A, Xu Y, Deng X. Finding of Ca. 1.6 Ga Detrital Zircons from the Mesoproterozoic Dagushi Group, Northern Margin of the Yangtze Block. Minerals. 2021; 11(4):371. https://doi.org/10.3390/min11040371
Chicago/Turabian StyleXie, Xiaofeng, Zhenning Yang, Huan Zhang, Ali Polat, Yang Xu, and Xin Deng. 2021. "Finding of Ca. 1.6 Ga Detrital Zircons from the Mesoproterozoic Dagushi Group, Northern Margin of the Yangtze Block" Minerals 11, no. 4: 371. https://doi.org/10.3390/min11040371