Figure F22. A. Close-up photograph of dunite that has a light green-gray groundmass hosting abundant, transgranular, black serpentine-magnetite veins oriented mainly parallel to the long axis of core (interval 209-1271A-1R-1, 70–80 cm). B. XRD analysis shows that the sample consists of serpentine and magnetite.

Figure F22. A. Close-up photograph of dunite that has a light green-gray groundmass hosting abundant, transgranular, black serpentine-magnetite veins oriented mainly parallel to the long axis of core (interval 209-1271A-1R-1, 70–80 cm). B. XRD analysis shows that the sample consists of serpentine and magnetite.