Table 1.
Radiocarbon ages from the Baishui Valley sites.
| Lab Code | Sample type | Site | Unit | AMS 14C Age (yr BP) | Cal Radiocarbon Age (2σ range, cal yr BP) |
|---|---|---|---|---|---|
| BA130786 | Charcoal | Xiahe | H43 | 4515 ± 20 | 5050–5190 |
| BA130787 | Foxtail millets | Xiahe | H20② | 3770 ± 30 | 4070–4240 |
| Beta-427728 | Foxtail millets | Xiahe | H45 | 3680 ± 30 | 4250–4425 |
| BA130789 | Foxtail millets | Mapo | H1 | 3820 ± 25 | 4140–4300 |
| BA130921 | Common millets | Nanshantou | F2 | 4685 ± 30 | 5310–5480 |
| BA130922 | Foxtail millets | Nanshantou | H15 | 4340 ± 30 | 4840–4980 |
| BA130790 | Foxtail millets | Nanshantou | H10 | 4265 ± 25 | 4820–4865 |
| BA131926 | Foxtail/Common millets | Xishan | H5 | 4305 ± 40 | 4820–4980 |
| BA131927 | Foxtail millets | Hanzhai | H2 | 3925 ± 25 | 4250–4440 |
| Beta-422852 | Foxtail millets | Beishantou | H1 | 4410 ± 30 | 5320–5575 |
BA = Peking University.