Taking a Gas Sample at Diva
The RO ROPOS holds a 'IGT' gas tight bottle in the orifice of the 280°C chimney called Diva. The high temperature fluids exiting the seafloor at this anhydrite-rich (CaSO4) vent contain the highest carbon dioxide concentrations at Axial Seamount. Credit: NSF-OOI/UW/ISS; Dive R1836; V15.