In table 2a average major and trace element compositions are given for analyses correlative land tephras. Average EMP major and LA-ICPMS trace element compositions for terrestrial samples with: Sample names, unnormalized oxides of Na2O, K2O, FeOt, SiO2, TiO2, MgO, CaO, MnO, Al2O3, P2O5, total and normalized values to 100% volatile free with the same order of element oxides and trace elements. Last column indicates number of individual measurements per average with Electron microprobe and Laser ICPMS.