Table 1.

U-series data for speleothem SKK 16 3.

Sample	238U ppb	(230Th/238U)	(234U/238U)	(230Th/232Th)	232Th ppb	Age ka uncorrected	Age ka corrected
SKK16 3/17.5	37.083 ± 0.003	0.6317 ± 0.0020	1.1221 ± 0.0009	14.70 ± 0.04	4.8733 ± 0.0043	88.63 ± 0.54	80.26 ± 1.87 1.84
SKK16 3/13.2	35.263 ± 0.004	0.6138 ± 0.0019	1.1245 ± 0.0014	148.10 ± 0.41	0.4466 ± 0.0030	84.59 ± 0.55	83.79 ± 0.64 0.63
SKK16 3/6	35.34 ± 0.02	0.6140 ± 0.0017	1.1087 ± 0.0012	59.414 ± 0.153	1.1162 ± 0.0003	86.64 ± 0.50	84.57 ± 0.76 0.75
SKK16 3/5.5	64.113 ± 0.005	0.6338 ± 0.0011	1.1156 ± 0.0010	19.086 ± 0.031	6.5056 ± 0.0012	89.95 ± 0.36	83.32 ± 1.48 1.46
SKK 16 3/4	53.907 ± 0.003	0.5001 ± 0.0008	1.1546 ± 0.0007	17.157 ± 0.026	4.8015 ± 0.0012	61.07 ± 0.18	56.69 ± 0.95 0.94
SKK16 3/1.7	38.183 ± 0.005	0.4510 ± 0.0009	1.1658 ± 0.0018	23.266 ± 0.047	2.2618 ± 0.0004	52.72 ± 0.24	50.02 ± 0.68 0.67

Parentheses denote activity ratios. Dates reported in this table are considered reliable after detrital corrections have been applied (see SI Table 1 for dates strongly affected by detrital correction and with no reliable age calculation). The following decay constants were used: ²³⁰Th: 9.1577E-6, ²³²Th: 4.9475E-11, ²³⁴U: 2.826E-6, ²³⁸UE 1.551E-10. The final column on the right hand side shows the ages calculated after correction for detrital thorium using a measured (²³⁰Th/²³²Th) value of 0.95 ± 0.1 for the detrital end-member.