Fig. 10
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(a) TaN/LaN vs. HfN/SmN (La Fleche et al., 1998), (b) Nb/U vs. (Th/Nb)N (Panda et al., 2023) diagrams showing the source of contamination. A, B, C: mantle sources metasomatized by subduction-related processes. D, E: mantle sources with carbonatite metasomatism. N = primitive mantle. Blue and green symbols correspond to groups I and II, respectively.
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