Table 1 Luminescence dating summary. All calculations made prior to rounding. For further data and details relating to the dating, see Methods and SI.
Sample | Depth (m) | Equivalent dose (Gy) | Dose rate (Gy ka−1) | Age (ka) | ||||
---|---|---|---|---|---|---|---|---|
Alpha | Beta | Gamma | Cosmic | Total | ||||
ST6-1 | 0.34 | 188.96 ± 7.42 | 0.13 ± 0.05 | 1.72 ± 0.50 | 0.82 ± 0.05 | 0.23 ± 0.02 | 2.90 ± 0.24 | 65.14 ± 5.28 |
ST6-2 | 0.57 | 406.16 ± 8.79 | 0.09 ± 0.03 | 1.41 ± 0.41 | 0.59 ± 0.04 | 0.21 ± 0.02 | 2.30 ± 0.22 | 176.67 ± 16.83 |
ST6-3 | 0.78 | 485.6 ± 12.26 | 0.09 ± 0.03 | 1.19 ± 0.34 | 0.49 ± 0.03 | 0.19 ± 0.02 | 1.96 ± 0.21 | 248.14 ± 26.75 |
ST7-1 | 0.77 | 285.65 ± 13.16 | 0.22 ± 0.08 | 1.90 ± 0.54 | 1.04 ± 0.07 | 0.19 ± 0.02 | 3.35 ± 0.25 | 85.27 ± 6.26 |
ST7-2 | 1.26 | 754.34 ± 26.14 | 0.18 ± 0.06 | 1.89 ± 0.54 | 0.93 ± 0.06 | 0.18 ± 0.02 | 3.18 ± 0.24 | 237.44 ± 18.16 |
ST7-3 | 1.63 | 823.83 ± 27.99 | 0.23 ± 0.08 | 1.77 ± 0.50 | 1.00 ± 0.07 | 0.17 ± 0.02 | 3.17 ± 0.25 | 260.21 ± 20.14 |
ST7-5 | 2.26 | 683.39 ± 19.77 | 0.21 ± 0.08 | 1.70 ± 0.49 | 1.18 ± 0.08 | 0.16 ± 0.02 | 3.69 ± 0.26 | 185.20 ± 13.05 |