Table 1 U-series dating results.

U-series dating results for Leang Tedongnge (LTed3) and Leang Balangajia 1 (LBLGJ1 and LBLGJ2). U-Th isotope ratios are activity ratios. ppm, parts per million.

SampleDescriptionSample
weight
(mg)
238U
(ppm)
230Th/232Th230Th/238U234U/238UUncorrected
age (ka)
±2σ
(ka)
Corrected
age (ka)
±2σ
(ka)
Corrected
initial
234U/238U
LTed3.4Sequence of
aliquots
1.613.33550.1841 ± 0.00100.5665 ± 0.001145.530.3645.440.360.5070 ± 0.0016
LTed3.3Sequence of
aliquots
1.52.1570.1878 ± 0.00250.5645 ± 0.001846.990.8646.400.940.5022 ± 0.0028
LTed3.2Overlies animal
figure
1.52.1370.1836 ± 0.00290.5717 ± 0.001844.740.9643.881.100.5133 ± 0.0030
LTed3.1Underlies
animal figure
1.11.41370.9229 ± 0.00750.9247 ± 0.0027SE
LBLGJ1.1Sequence of
aliquots
5.62.373540.2848 ± 0.00150.982 ± 0.001137.390.2437.320.240.9800 ± 0.0013
LBLGJ1.2Sequence of
aliquots
5.63.035870.2348 ± 0.00080.9819 ± 0.000529.830.1129.790.110.9803 ± 0.0006
LBLGJ1.3Overlies animal
figure
5.72.176130.2318 ± 0.00100.9791 ± 0.001129.490.1529.450.150.9773 ± 0.0012
LBLGJ1.4Underlies
animal figure
5.71.713010.5173 ± 0.00180.9787 ± 0.001282.290.4582.130.460.9731 ± 0.0016
LBLGJ2.1Sequence of
aliquots
6.02.444600.2376 ± 0.00100.9733 ± 0.001130.560.1630.510.160.9709 ± 0.0012
LBLGJ2.2Sequence of
aliquots
5.61.813550.2373 ± 0.00110.9710 ± 0.001230.600.1730.540.170.9684 ± 0.0013
LBLGJ2.3Sequence of
aliquots
5.21.664760.2262 ± 0.00150.9697 ± 0.001429.010.2228.960.220.9671 ± 0.0016
LBLGJ2.4Overlies hand
stencil
5.31.633600.2497 ± 0.00150.9736 ± 0.001032.360.2332.290.240.9711 ± 0.0011
LBLGJ2.5Underlies hand
stencil
1.01.521730.4743 ± 0.00330.9756 ± 0.003072.870.8172.610.820.97 ± 0.0038