Table 1. Summary of uranium-series and OSL results from Bizmoune Cave by layer (2-σ error).
U-series speleothem | U-series tooth | OSL | Max Planck | OSL | Sheffield | |||
Layer |
Central
age |
Uncertainty | Central age | Uncertainty | Central age | Uncertainty | Central age | Uncertainty |
2a | 17,540 | ±1250 | 14,440 | +1540/−1500 | ||||
22,200 | ±2110 | |||||||
2b | 47,380 | +7690/−6910 | ||||||
2c | 74,560 | +13,860/−11,750 | ||||||
61,820 | ±14,990 | |||||||
3 | 74,600 | ±10,400 | 75,000 | ±11,400 | ||||
75,300 | ±9000 | |||||||
69,400 | ±11,000 | |||||||
69,400 | ±8600 | |||||||
71,300 | ±10,200 | |||||||
68,200 | ±8400 | |||||||
3b | 93,850 | +17,440/−13,450 | ||||||
3 inf | 95,000 | ±16,000 | ||||||
4a | 102,980 | ±9620 | 82,700 | ±13,800 | ||||
83,900 | ±13,800 | |||||||
4b | 110,690 | +22,310/−17,250 | ||||||
4c′ | 142,290 | +29,300/−22,060 | ||||||
4c | 149,150 | +63,840/−36,690 | 57,800 | ±7200 | 109,000 | ±18,000 | ||
61,400 | ±7400 | 77,100 | ±12,800 | |||||
66,400 | ±10,800 | |||||||
74,600 | ±12,800 | |||||||
54,300 | ±9400 |