Fig. 8From: Separation or integration? Further insights from a study on chemical datasets of ancient bronze drums from South and Southeast Guangxi, ChinaPlots of lead isotopic ratios of Types BL and LS drums compared with the published data [14] of lead–zinc deposits in southeast, south, and northwest Guangxi (the blue, pink, and green symbols, respectively). a Data of the 19 new samples of bronze drums in this article (Additional file 1: Table S2); b New and published data of bronze drums (Additional file 1: Table S3)Back to article page