Fig. 4: The Li-Ba-Sr-Nd isotopic ratios of the investigated alkaline rocks. | Nature Communications

Fig. 4: The Li-Ba-Sr-Nd isotopic ratios of the investigated alkaline rocks.

From: The mantle source of REE-rich alkaline silicate magmas can be enriched by continent-derived sediment subduction

Fig. 4: The Li-Ba-Sr-Nd isotopic ratios of the investigated alkaline rocks.

A δ7Li vs. δ138/134Ba, B εNd(t) vs. δ7Li, and C εNd(t) vs. δ138/134Ba. The sample symbols are as in Fig. 3. The color ramp on the right side varies in color intensity, corresponding to the 87Sr/86Sr(i) ratio in the samples. The error bars show the 2 SD uncertainties of δ138/134Ba measurements. The error bars of δ7Li and εNd(t) are smaller than the symbol size. The numbers along the mixing curves show the mixing proportions. The gray-shaded region represents the range of the mantle. See Supplementary Table S6 for the additional parameters used in the mixing modeling.

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