Table 2.
Summary of the results and parameters used for OSL dating. Lab codes from the Centro Nacional de Investigación sobre la Evolución Humana—CENIEH (LM) and University of Seville (RDI) laboratories are also indicated.
| Sample | Lab code | No. of aliquots measured (selected in brackets) | Altitude (m) | Overburden density (g/cm3) | Depth (m) | Water content (%) | 40K (Bq/kg) | 232Th (Bq/kg) | 238U (Bq/kg) | 40K (%) | 232Th (ppm) | 238U (ppm) | Water corrected beta dose rate (Gy/ka) | Water corrected gamma dose rate (Gy/ka) | Cosmic dose rate (Gy/ka) | Overdispersion (%) | Dose rate (Gy/ka) | Burial dose (Gy) | Age (ka) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | LM20139-07 | 48 (30) | 3.5 | 1.8 | 5.9 | 15 ± 5 | 231 ± 10 | 5.11 ± 0.38 | 3.8 ± 1.2 | 0.682 ± 0.059 | 1.26 ± 0.19 | 0.29 ± 0.19 | 0.64 ± 0.04 | 0.22 ± 0.02 | 0.104 ± 0.010 | 19 | 0.97 ± 0.05 | 197.3 ± 7.6 | 203.8 ± 12.7 |
| M2-2 | LM20139-05 | 68 (52) | 0.7 | 1.8 | 6.5 | 20 ± 5 | 263 ± 12 | 8.07 ± 0.38 | 5.6 ± 1.3 | 0.776 ± 0.071 | 1.99 ± 0.19 | 0.43 ± 0.20 | 0.54 ± 0.03 | 0.28 ± 0.02 | 0.098 ± 0.010 | 24 | 0.91 ± 0.04 | 211.2 ± 7.4 | 232.8 ± 13.1 |
| M2-3 | LM20139-06 | 24 (18) | 0.7 | 1.8 | 7.7 | 25 ± 5 | 239 ± 11 | 6.88 ± 0.48 | 4.7 ± 1.5 | 0.705 ± 0.032 | 1.70 ± 0.24 | 0.36 ± 0.23 | 0.63 ± 0.04 | 0.23 ± 0.02 | 0.087 ± 0.009 | 28 | 0.95 ± 0.04 | 259.3 ± 8.8 | 274.0 ± 15.8 |
| M1 | RDI-4233 | 48 (27) | 0.3 | 1.8 | 7.9 | 25 ± 5 | 259 ± 5 | 11.9 ± 0.35 | 6.8 ± 0.7 | 0.764 ± 0.016 | 2.93 ± 0.09 | 0.53 ± 0.06 | 0.53 ± 0.03 | 0.30 ± 0.02 | 0.085 ± 0.008 | 25 | 0.91 ± 0.03 | 269.9 ± 13 | 295.8 ± 17.8 |