Five lead isotope ratios(206/204, 207/204, 208/204, 207/206, 208/206) of two bronze artifacts excavated from Sudong site, Youngkwang-gun were analyzed by TIMS(thermal ionization mass spectrometer). Their lead isotope ratio data obtained were compared ...
Five lead isotope ratios(206/204, 207/204, 208/204, 207/206, 208/206) of two bronze artifacts excavated from Sudong site, Youngkwang-gun were analyzed by TIMS(thermal ionization mass spectrometer). Their lead isotope ratio data obtained were compared with those of galena of Korea, Japan and China, which data were being used for reference raw material data set. And multivariate mapping method such as statistical linear discriminant analysis(SLDA) was applied to classify the sources of raw materials. The lead isotope data of bronze artifact decorated with bird design was included in the area of galena of northern China and this result was accorded with SLDA result. Imitated bronze mirror was of southern China but very difficult to differentiate with area of south Korea. Consequently, the result of lead isotope ratios of two bronze artifacts suggested that the sources of raw materials were different origin each other.