. 2017 May 9;6:e24231. doi: 10.7554/eLife.24231

Table 6.

Summary table of model parameters used in ESR dating separated by sample number and laboratory. See text for detailed discussion.

DOI: http://dx.doi.org/10.7554/eLife.24231.015

Sample:	1767	1788		1810		1841
Laboratory:	SCU	SCU	Cenieh-gu	SCU	Cenieh-gu	SCU
	Enamel:
De (Gy)	194 ± 4	231 ± 8	159 ± 10	296 ± 14	232 ± 30	1676 ± 127
U (ppm)	2.52 ± 0.53	0.38 ± 0.17	0.07 ± 0.07	0.32 ± 0.12	0.16 ± 0.16	2.28 ± 0.48
²³⁴U/²³⁸U	6.21 ± 0.03	5.95 ± 0.32	6.258 ± 0.349	4.04 ± 0.18	4.773 ± 0.060	5.87 ± 0.03
²³⁰Th/²³⁴U	0.37 ± 0.05	0.55 ± 0.52	0.598 ± 0.038	0.92 ± 0.05	0.950 ± 0.034	0.785 ± 0.038
Alpha efficiency*	0.13 ± 0.02	0.13 ± 0.02	0.13 ± 0.02	0.13 ± 0.02	0.13 ± 0.02	0.13 ± 0.02
Initial thickness (μm)	1027 ± 210	1049 ± 277	1486 ± 248	1150 ± 250	1527 ± 257	650 ± 145
Water (%)	0	0	0	0	0	0
	Dentine:
U (ppm)	7.88 ± 0.66	5.76 ± 0.86	4.71 ± 0.27	9.08 ± 0.44	5.81 ± 0.37	–
²³⁴U/²³⁸U	6.28 ± 0.09	6.40 ± 0.03	6.448 ± 0.046	5.93 ± 0.03	5.969 ± 0.035	–
²³⁰Th/²³⁴U	0.35 ± 0.11	0.62 ± 0.02	0.608 ± 0.012	0.52 ± 0.09	0.572 ± 0.010	–
Water (%)	10 ± 5	10 ± 5	10 ± 5	10 ± 5	10 ± 5	–
	Sediment:
U (ppm)	3.0 ± 0.3	2.9 ± 0.1	2.9 ± 0.1	3.2 ± 0.3	3.2 ± 0.3	0.64 ± 0.06^†
Th (ppm)	7.9 ± 0.4	8.3 ± 0.6	8.3 ± 0.6	8.6 ± 0.4	8.6 ± 0.4	4.72 ± 0.47^†
K (%)	1.17 ± 0.14	1.21 ± 0.14	1.21 ± 0.14	1.23 ± 0.14	1.23 ± 0.14	1.47 ± 0.15^†
Water (%)	25 ± 10	25 ± 10	25 ± 10	25 ± 10	25 ± 10	25 ± 10
Depth below ground surface (cm)	0	2	2	5	5	55
Gamma Dose rate (μGy a⁻¹)
25 ± 10% Water, 80% Rn degassing 25 ± 10% Water, no Rn degassing	534 ± 69 724 ± 116	534 ± 69 724 ± 116	534 ± 69 724 ± 116	534 ± 69 724 ± 116	534 ± 69 724 ± 116	534 ± 69 724 ± 116
Cosmic dose rate (μGy a⁻¹)	15 ± 1	15 ± 1	15 ± 1	15 ± 1	15 ± 1	15 ± 1

*After Woodroffe et al. (1991);.

^†A relative error of ± 10% was assumed.