Shallow sea hydrothermal vents

Paleochori Bay
Several shallow-sea hydrothermal vents are located offshore of Milos Island, Greece.  Pore fluids at these sites are hot (~115°C), acidic (pH 5), sulfidic, and have either dilute or elevated chloride concentrations. The vents offer an ideal opportunity to target microbial processes that presumably transition from sulfide delivered with volcanic gases to sulfide produced by dissimilatory sulfate reduction in non-vent sediments.

Collaborators: Dave Fike (WUSTL), Jan Amend (USC), Greg Druschel (IUPUI), Jen Houghton (WUSTL), Roy Price (SBU), and Alyssa Findlay (Ben-Gurion Univ).

Gilhooly et al., Sulfur and oxygen isotope insights into sulfur cycling in shallow-sea hydrothermal vents, Milos, Greece. Geochemical Transactions 2014