Figure F61. Macroscopic image of Fe2+-oxidizing bacterial colony obtained from ground rock material taken at a depth of 27 mbsf (Sample 200-1224D-1R-2, 10-15 cm) and aerobically grown on an artificial seawater agar plate.

Figure F61. Macroscopic image of Fe²⁺-oxidizing bacterial colony obtained from ground rock material taken at a depth of 27 mbsf (Sample 200-1224D-1R-2, 10-15 cm) and aerobically grown on an artificial seawater agar plate.