Bulk rock compositions and radiogenic isotope ratios of mafic rocks from the Langseth Ridge (Gakkel Ridge)

This dataset contains bulk geochemical data of variably altered mafic rocks (basalt and diabase) from the Langseth Ridge and Afanasenkov Seamount, two volcanic centers on the ultraslow-spreading Gakkel Ridge, Arctic Ocean. The samples were collected during R/V Polarstern Expeditions PS78 and PS101 and USCGC HEALY Expedition HLY0102. Compositions were obtained via X-ray fluorescence and inductively coupled plasma-mass spectrometry. Details on the analytical procedure can be found in Albers et al. (2024).