Quantitative major elements EMPA analyses from ultramafic section of Careón Ophiolite (NW Iberian Massif)

This dataset presents analyses of in situ major elements for a relict porphyroclastic mineral phases in high serpentinized ultramafic rocks which they form part of mantle section of one of the best exposed Devonian ophiolite along European Variscan suture, in NW of Iberian Massif (Careón Ophiolite).