Sediment | Series | D/Dmatrix | SE (D/Dmatrix) | Mean | SE(Mean) |
---|---|---|---|---|---|
Sand | U-series | 0.938 | 0.061 | 0.931 | 0.052 |
Th-series | 0.933 | 0.056 | |||
40K | 0.921 | 0.040 | |||
CC Carbonated sediment rich in clay; | U-series | 0.921 | 0.071 | 0.938 | 0.041 |
Th-series | 0.951 | 0.032 | |||
40K | 0.940 | 0.021 | |||
DK Sediment rich in organic matter | U-series | 0.938 | 0.040 | 0.939 | 0.041 |
Th-series | 0.928 | 0.045 | |||
40K | 0.951 | 0.038 |
Sediment | Density(g cm–3) | Chemical composition |
---|---|---|
Sand | 1.8 | SiO2(100%) |
CC Carbonated sediment rich in clay; | 1.8 | O (52.91%), Si (27.71%), Al (8.81%), Fe (7.00%), K (1.55%), Na (0.20%), Mg (0.46%), P (0.11%), S (0.05%), Cl (0.001%), Ca (0.448%), Ti (0.61%), Mn (0.10%) |
DK Sediment rich in organic matter | 1.6 | O (38.30%), C (29.00%), Ca (9.70%), Si (5.40%), Cl (4.10%), P (3.30%), Mg (2.20%), K (1.90%), N (1.20%), F (0.50%), Na (1.90%), Al (1.00%), S (0.70%), Ti (0.10%), Fe (0.70%) |
# Treatment | Observation |
---|---|
1 GSL@70°C for 10 s with 50 mW cm–2 | Natural signal |
2 TL to 300°C (5 K/s) | |
3 Irradiation (closed ß-source for 4 s, | |
4 GSL@70°C for 10 s with 50 mW cm–2 | Regenerated signal |
5 TL to 300°C (5 K/s) | |
6 GSL@70°C for 10 s with 50 mW cm–2 | Background signal |