Fig. 5 | Scientific Reports

Fig. 5

From: Cluster analysis reveals increasing plume-like magmatism during progressive rifting in Afar (Ethiopia)

Fig. 5

Partial melting depth and primitive magma signature. Binary trace element ratio plots of the principal clusters mafic lavas (MgO > 4 wt%) of test 2 hierarchical clustering. The samples are colored according to their cluster number. Dy/Yb vs. LaN/SmN shows the variations in the melting depth (a) while Zr/Nb vs. LaN/SmN highlights differences in mantle enrichment (b) among Afar lavas. OIB and N-MORB reference values are from Sun and McDonough71. Normalizing values after McDonough and Sun72. Results including all clusters are shown in Supplementary Fig. S7.

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