Sample no | Lab. no | Location or core name | Sample position | Material | δ13C [‰] | Conventional 14C age [yr BP] | Calibrated age (2σ) [cal BP] | Remark |
---|---|---|---|---|---|---|---|---|
1 | IAAA-181081 | SKN-W | E4/E5 | Organic sediment | − 25.82 ± 0.23 | 424 ± 22 | 520–460 (95.4%) |  |
2 | IAAA-181082 | SKN-W | E5/B-Tm | Organic sediment | − 30.24 ± 0.20 | 979 ± 22 | 930–890 (33.4%), 880–790 (62.1%) |  |
3 | IAAA-181805 | SKN-W | B-Tm/E6 | Organic sediment | − 28.44 ± 0.20 | 1315 ± 22 | 1300–1240 (50.5%), 1220–1170 (44.9%) |  |
4 | IAAA-181083 | SKN-W | E6/E7 | Organic sediment | − 27.41 ± 0.21 | 1357 ± 23 | 1310–1260 (87.0%), 1210–1170 (8.5%) |  |
5 | IAAA-210212 | SKN-W | below E10 | Plant fragment | − 30.13 ± 0.19 | 1815 ± 24 | 1820–1810 (0.9%), 1800–1760 (4.9%), 1750–1690 (63.7%), 1670–1620 (26.0%) |  |
6 | IAAA-210213 | SKN-W | below E11 | Organic sediment | − 29.97 ± 0.21 | 2724 ± 24 | 2870–2760 (95.4%) |  |
7 | IAAA-200962 | SKN-W | below E14 | Organic sediment | − 29.79 ± 0.26 | 3992 ± 26 | 4530–4410 (95.4%) |  |
8 | IAAA-210214 | SKN-E | below E5 | Organic sediment | − 28.61 ± 0.15 | 3970 ± 27 | 4530–4400 (89.9%), 4370–4350 (2.2%), 4330–4300 (3.3%) |  |
9 | IAAA-210215 | SKN-E | below E6 | Organic sediment | − 24.25 ± 0.26 | 4320 ± 27 | 4960–4830 (95.4%) |  |
10 | IAAA-211205 | SKN-E | E11/E12 | Organic sediment | − 26.07 ± 0.23 | 5418 ± 29 | 6290–6180 (93.0%), 6140–6120 (2.5%) |  |
11 | IAAA-210649 | SKN-GS1 | 58–59 cm in depth | Organic sediment | − 25.92 ± 0.24 | 542 ± 22 | 630–590 (18.0%), 560–520 (77.4%) |  |
12 | IAAA-210367 | SKN-GS1 | 118–119 cm in depth | Organic sediment | − 25.83 ± 0.19 | 3931 ± 25 | 4510–4490 (2.2%), 4440–4250 (93.2%) |  |
13 | IAAA-210368 | SKN-GS1 | 141–142 cm in depth | Organic sediment | − 25.39 ± 0.18 | 4209 ± 25 | 4850–4790 (33.3%), 4760–4690 (48.2%), 4680–4640 (14.0%) |  |
14 | IAAA-210645 | SKN-GS1 | 238–239 cm in depth | Organic sediment | − 26.77 ± 0.24 | 4783 ± 27 | 5590–5470 (95.4%) |  |
15 | IAAA-210369 | SKN-GS1 | 243.5–244.5 cm in depth | Organic sediment | − 26.72 ± 0.19 | 4902 ± 27 | 5720–5680 (4.5%), 5670–5580 (90.9%) |  |
16 | IAAA-202305 | SKN-GS2 | 64–65 cm in depth | Organic sediment | − 27.5 ± 0.21 | 1003 ± 21 | 960–900 (78.3%), 870–820 (15.2%), 810–800 (1.9%) |  |
17 | IAAA-202306 | SKN-GS2 | 70–71 cm in depth | Organic sediment | − 27.32 ± 0.19 | 1239 ± 21 | 1270–1200 (40.0%), 1180–1070 (55.5%) |  |
18 | IAAA-211211 | SKN-GS2 | 91–92 cm in depth | Organic sediment | − 27.6 ± 0.21 | 2560 ± 24 | 2760–2690 (72.7%), 2640–2610 (7.7%), 2590–2510 (15.0%) |  |
19 | IAAA-210652 | SKN-GS2 | 142–143 cm in depth | Organic sediment | − 29.82 ± 0.23 | 4410 ± 26 | 5260–5250 (0.5%), 5240–5190 (3.7%), 5060–4860 (91.2%) |  |
20 | IAAA-200960 | SKN-GS2 | 204–206 cm in depth | Organic sediment | − 27.37 ± 0.25 | 4979 ± 28 | 5860–5820 (5.0%), 5750–5600 (90.4%) |  |
21 | IAAA-211210 | SKN-GS3 | 90–91 cm in depth | Organic sediment | − 26.76 ± 0.22 | 3268 ± 26 | 3570–3440 (90.2%), 3430–3400 (5.3%) |  |
22 | IAAA-211209 | SKN-GS4 | 97–98 cm in depth | Organic sediment | − 27.1 ± 0.18 | 3405 ± 26 | 3820–3800 (1.0%), 3720–3570 (94.5%) |  |
23 | IAAA-210651 | SKN-GS5 | 63–64 cm in depth | Organic sediment | − 27.1 ± 0.25 | 4005 ± 25 | 4530–4410 (95.4%) |  |
24 | IAAA-202304 | SKN-GS5 | 171–172 cm in depth | Organic sediment | − 22.62 ± 0.19 | 6673 ± 29 | 7610–7470 (95.4%) |  |
25 | IAAA-210217 | SKN-GS6 | 44–45 cm in depth | Organic sediment | − 28.52 ± 0.27 | 268 ± 21 | 430–370 (28.6%), 330–280 (62.3%), 170–150 (4.5%) |  |
26 | IAAA-210365 | SKN-GS6 | 57–58 cm in depth | Organic sediment | − 28.87 ± 0.19 | 615 ± 21 | 650–550 (95.4%) |  |
27 | IAAA-211208 | SKN-GS6 | 96–97 cm in depth | Organic sediment | − 25.6 ± 0.22 | 2782 ± 25 | 2960–2840 (81.4%), 2830–2780 (14.0%) |  |
28 | IAAA-210650 | SKN-GS6 | 132–133 cm in depth | Organic sediment | − 27.9 ± 0.22 | 4160 ± 25 | 4830–4580 (95.4%) |  |
29 | IAAA-210366 | SKN-GS6 | 134–135 cm in depth | Organic sediment | − 25.77 ± 0.18 | 4125 ± 25 | 4820–4750 (28.1%), 4730–4520 (67.3%) |  |
30 | IAAA-210646 | SKN-GS6 | 151–152 cm in depth | Organic sediment | − 27.2 ± 0.23 | 4457 ± 26 | 5290–5160 (47.3%), 5140–4960 (48.1%) |  |
31 | IAAA-210218 | SKN-GS6 | 165–166 cm in depth | Organic sediment | − 30.01 ± 0.20 | 4643 ± 28 | 5470–5310 (95.4%) |  |
32 | IAAA-210219 | SKN-GS6 | 173–174 cm in depth | Organic sediment | − 27.84 ± 0.19 | 5102 ± 29 | 5920–5840 (36.2%), 5830–5740 (59.2%) |  |
33 | IAAA-210220 | SKN-GS6 | 195–196 cm in depth | Organic sediment | − 28.69 ± 0.18 | 5099 ± 29 | 5920–5840 (35.7%), 5830–5740 (59.8%) |  |
34 | IAAA-210221 | SKN-GS6 | 228.5–229.5 cm in depth | Organic sediment | − 29.06 ± 0.18 | 5211 ± 29 | 6110–6080 (5.5%), 6010–5900 (89.9%) |  |
35 | IAAA-200961 | SKN-GS6 | 262–264 cm in depth | Organic sediment | − 26.88 ± 0.25 | 5524 ± 28 | 6400–6280 (95.4%) |  |
36 | IAAA-210643 | SKN-GS7 | 40–41 cm in depth | Organic sediment | − 25.69 ± 0.21 | 555 ± 21 | 630–590 (36.7%), 560–520 (58.8%) |  |
37 | IAAA-210644 | SKN-GS8 | 74–75 cm in depth | Organic sediment | − 26.9 ± 0.21 | 503 ± 21 | 550–500 (95.4%) |  |
38 | IAAA-210216 | SKN-GS9 | 62–63 cm in depth | Organic sediment | − 27.8 ± 0.21 | 412 ± 22 | 520–450 (90.5%), 360–330 (4.9%) |  |
39 | IAAA-211206 | SKN-GS9 | 118–119 cm in depth | Organic sediment | − 25.2 ± 0.22 | 3264 ± 25 | 3570–3440 (87.6%), 3430–3400 (7.8%) |  |
40 | IAAA-211207 | SKN-GS9 | 165–166 cm in depth | Organic sediment | − 25.2 ± 0.21 | 3940 ± 26 | 4520–4480 (8.8%), 4450–4290 (85.3%), 4270–4250 (1.4%) |  |
41 | IAAA-210647 | SKN-GS9 | 175–176 cm in depth | Organic sediment | − 27.9 ± 0.24 | 4017 ± 26 | 4570–4550 (1.2%), 4530–4410 (94.2%) |  |
42 | IAAA-210648 | SKN-GS9 | 201–202 cm in depth | Organic sediment | − 29.5 ± 0.24 | 4350 ± 27 | 5030–5010 (1.3%), 4980–4850 (94.1%) |  |
43 | IAAA-181806 | SKN-E | below U-2 drift pumice | Organic sediment | − 22.9 ± 0.21 | 4710 ± 30 | 5580–5500 (17.2%), 5490–5430 (23.9%), 5420–5320 (54.4%) | Hiramine et al. (in press) |
44 | IAAA-181607 | SKN-E | below To-Cu ash | Organic sediment | − 24.6 ± 0.39 | 5180 ± 30 | 6000–5900 (95.4%) | Ishimura and Hiramine (2020) |