Mineral chemistry dataset of the Carboniferous submarine basaltic volcanism of the Matachel Basin (SW Iberian Massif)

Mineral chemistry characterization by means of Electron Microprobe analysis in 9 basaltic samples are presented. This dataset comprises a total of 501 mineral chemical analysis which correspond to plagioclase (208 analysis), clinopyroxene (202 analysis), amphibole (64 analysis), opaque minerals (18 analysis), and alkali feldspar (9 analysis).