EOI scientists participated in several ROV dives remotely via "telepresence" during the 2016 Deepwater Exploration of the Marianas expedition by the NOAA ship Okeanos Explorer. During Leg 1 of the expedition, EOI co-led three dives in the Mariana backarc, exploring the site of a recent eruption and two newly discovered hydrothermal vent fields. All of these discovered during a recent cruise on R/V Falkor in Nov-Dec 2015, and set the stage for further exploration during a follow-on R/V Falkor cruise in December 2016. During Leg 3 of the Okeanos expedition, EOI co-led three dives in at three volcanically active seamounts, each with its own unique ecosystem. The expedition was supported by the NOAA Ocean Exploration and Research Program.
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A paper just published in Nature Geoscience shows a newly recognized role for hydrothermal vents in the global carbon cycle. This new research, by PMEL/JISAO researcher David Butterfield and colleagues, shows that hydrothermal vents may act as a recycling and decomposition system for dissolved organic carbon (DOC), an important constituent of the global carbon pool. The scientists... more