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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Characterization of pre-Columbian artefacts in situ through handheld portable X-ray fluorescence spectrometry: the case of ceramics from the Mochica site of San José de Moro (Peru)

Fig. 3

PCA biplot (left) and PCA scree plot (right) using CLR transformed HHpXRF raw intensities data: Mochica bichrome and Mochica polychrome ceramics (black dots), Coastal Cajamarca (gray diamonds) and Highland Cajamarca ceramics (gray triangles). Var-cov matrix was employed to project all compositional information. Convex hulls were denoted

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