Fig. 7: Results from the hierarchical cluster analysis of LA-ICP-MS data on manganese oxide artifacts. | Nature Communications

Fig. 7: Results from the hierarchical cluster analysis of LA-ICP-MS data on manganese oxide artifacts.

From: Ochre communities of practice in Stone Age Eswatini

Fig. 7

a (upper): Dendrogram showing the results of hierarchical cluster analysis of LA-ICP-MS data on 56 Mn-Ox artifacts and source samples. b (lower): Results from the multivariate statistical analysis of manganese oxide artifacts. Scatterplot of principal component 1 (PC1 41.9%) vs principal component 2 (PC2 22.6%), showing the distribution of Mn-Ox artifacts and source materials. Mn-G1 corresponds to the Ngwenya Bulembu source. Mn-G4 corresponds to the Ngwenya Banda Cavern source. Mn-G5 corresponds to the Kubuta source. Groups Mn-G2, Mn-G3, and Mn-G6 are exclusively artifacts with no known source origins at this time. Unassigned samples are individually labelled. Ellipses are drawn at 90% confidence. Source data are available in Supplementary Data 6.

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