Improvement and integration: scientific analyses of willow-leaf shaped bronze swords excavated from the Shuangyuan Village Cemetery, Chengdu, China

Heritage Science

Table 3 Lead isotope ratios of the bronze swords from Shuangyuan Village Cemetery, Chengdu

Lab No	Archaeological No	²⁰⁶Pb/²⁰⁴Pb	²⁰⁷Pb/²⁰⁶Pb	²⁰⁸Pb/²⁰⁶Pb	²⁰⁷Pb/²⁰⁴Pb	²⁰⁸Pb/²⁰⁴Pb	Alloy Type
QBS01	2016QDSM11:30	18.770	0.8357	2.0801	15.686	39.045	Cu–Sn
QBS02	2016QDSM11:32	18.442	0.8487	2.1041	15.652	38.802	Cu–Sn
QBS03	2016QDSM15:13	18.510	0.8472	2.0966	15.679	38.808	Cu–Sn
QBS04	2016QDSM19:2	18.417	0.8507	2.1051	15.667	38.770	Cu–Sn–Pb
QBS05	2016QDSM19:3	18.346	0.8506	2.1049	15.605	38.616	Cu–Sn
QBS06	2016QDSM19:4	18.472	0.8477	2.0986	15.659	38.766	Cu–Sn
QBS07	2016QDSM21:6	18.045	0.8636	2.1295	15.583	38.427	Cu–Sn
QBS08	2016QDSM23:5	18.182	0.8584	2.1164	15.607	38.486	Cu–Sn
QBS09	2016QDSM25:3	17.852	0.8703	2.1477	15.537	38.340	Cu–Sn–Pb
QBS10	2016QDSM29:1	17.637	0.8797	2.1677	15.514	38.233	Cu–Sn
QBS11	2016QDSM30:2	18.286	0.8544	2.1151	15.621	38.676	Cu–Sn–Pb
QBS12	2016QDSM46:15	18.186	0.8581	2.1156	15.606	38.475	Cu–Sn
QBS13	2016QDSM74:8	18.579	0.8445	2.0939	15.690	38.904	Cu–Sn–Pb
QBS14	2016QDSM87:2	18.407	0.8514	2.1049	15.673	38.755	Cu–Sn
QBS15	2016QDSM104:9	18.325	0.8535	2.11	15.640	38.666	Cu–Sn
QBS16	2016QDSM152:1	18.449	0.8483	2.099	15.650	38.724	Cu–Sn
QBS17	2016QDSM161:4	18.263	0.8553	2.1098	15.621	38.531	Cu–Sn–Pb
QBS18	2016QDSM171:5	18.288	0.8574	2.1112	15.686	38.630	Cu–Sn–Pb