Table 1 Radiocarbon dates of samples from the trench
Sample No | Labo No | Sample position (unit No.) | Grid No | Depth from 0 m grid [m] | Material | δ13C [‰] | Conventional 14C age [yrBP] | Calibrated age (2σ) [calBP] |
|---|---|---|---|---|---|---|---|---|
1 | IAAA-171171 | 10 | W4.15 | 0.24 | Organic sediments | − 11.43 ± 0.48 | 1,180 ± 20 | 1180–1050 (95.4%) |
2 | IAAA-171170 | Top of 40 | W5.65 | 0.57 | Organic sediments | − 13.64 ± 0.38 | 1,900 ± 20 | 1900–1810 (95.2%), 1760–1740 (0.2%) |
3 | IAAA-171454 | Bottom of 40 | W5.65 | 0.86 | Organic sediments | − 12.29 ± 0.39 | 2,070 ± 20 | 2120–1990 (95.4%) |
4 | IAAA-171453 | Top of 60 | W5.65 | 1.04 | Organic sediments | − 13.83 ± 0.45 | 2,620 ± 30 | 2780–2720 (95.4%) |
5 | IAAA-171169 | Bottom of 60 | W5.65 | 1.18 | Organic sediments | − 9.50 ± 0.30 | 2,640 ± 20 | 2780–2740 (95.4%) |
6 | IAAA-171172 | 80 | E8.05–8.10 | 1.85–1.90 | Charcoals | − 12.00 ± 0.47 | 2,990 ± 20 | 3230–3070 (95.4%) |
7 | IAAA-171509 | 80 | E7.98 | 1.83 | Organic sediments | − 12.69 ± 0.34 | 3,010 ± 20 | 3330–3300 (5.9%), 3260–3140 (88.0%), 3100–3080 (1.5%) |
8 | IAAA-151561 | Bottom of 101 | N3.9 | 2.27 | Charcoals | − 24.47 ± 0.33 | 3,070 ± 20 | 3360–3220 (95.4%) |