Geochemical analyses link the geologic histories of the South Pacific Islands of Fiji, Vanuatu, and Samoa. This map shows the tectonic features of the area studied. (Credit: Gill et al, 2022) ...

(a) Tectonic setting background in the Tonga-Lau-Fiji region. (b ... driven by asymmetric rollback of the subducting Pacific Plate. This shallow flow aligns with geochemical evidence of plume ...