Major and trace element concentrations, Sr isotopes, δ18O, and U-Pb ages obtained on OIB-hosted carbonates

This dataset includes major and trace element concentrations, Sr isotopes, δ18O, and U-Pb ages obtained on OIB-hosted carbonates. The dataset contains a collection of previously published and new data. OIB are from Samoa (Ofu Island), Caroline (Kosrae Island), Rarotonga (Rarotonga Island), Macdonald (Mangaia Island), Arago-Rurutu (Tuvalu Islands), and St. Helena (St. Helena Island) hotspots.