Table 1 Information for the OSL dating samples.

From: Late holocene overflow floods of the lower Yellow River led to the shrinkage of downstream lakes

Sample

Sample no.

Depth (cm)

U (ug/g)

Th(ug/g)

K (%)

Water content (%)

De (Gy)

Dose rate (Gy/ka)

Age (ka)

HZ -OSL-115

HZ1.15

115

2.51 ± 0.13

12.7 ± 0.38

1.6 ± 0.05

25

4.64 ± 0.55

2.57 ± 0.09

1.80 ± 0.22

HZ -OSL-180

HZ1.8

180

1.96 ± 0.10

10.1 ± 0.30

1.78 ± 0.05

28

5.28 ± 0.96

2.39 ± 0.09

2.21 ± 0.41