Distinguishing volcanic contributions to the overlapping Samoan and Cook-Austral hotspot tracks

This dataset includes five data tables. The first table describes the samples in this study, which includes lavas from volcanoes in the Western Samoa region (WESAM), as well as two glasses from Papatua seamount. The second table presents new 40Ar/39Ar ages on four lavas from this study. The third and fourth tables provide new major and trace element data for the WESAM and Papatua samples, respectively. Table 5 presents new Hf-Pb-Sr-Nd isotopic data for the studied lavas.