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Environmental Roots of the Late Bronze Age Crisis

Figure 4

Biplot PCA showing the distribution of samples according to the two main PdVs and environmental factors.

PCA axes 1 and 2 account for 84.2% of the cumulative variance. The cluster analysis of the two main PdVs and environmental factors from the core B22 was computed with paired group as algorithm, and correlation as similarity measure.

Figure 4

doi: https://doi.org/10.1371/journal.pone.0071004.g004