Captain Dave onbard the R/V Revelle, recovers a float with a bunch of gooseneck barnacles to prevent possible entanglement. Credit: K. Gonzalez, University of Washington, V18.

Jasmine Durant

During the off and on pace of the cruise, its good to find calming tasks such as the long-time tradition of making bracelets and knot tying. Credit: A. Larsen, University of Washington, V18.

A float with a dense growth of gooseneck barnacles was recovered onto the R/V Revelle to prevent possible entanglement. Credit: A. Larsen, University of Washington, V18.

A 'frozen' lava lake is captured by the cameras on the ROV Jason at the summit of Axial Seamount. Credit: UW/NSF-OOI/WHOI, V18.

Organisms colonize the outer walls of the 16 m-tall hydrothermal edifice called El Guapo. The community structure changes with height above seafloor. Here, limpets, red scale worms and blue protists (ciliates) colonize the outer sulfide walls of the structure. Credit: UW/NSF-OOI/WHOI, V18.

Tubeworms, sulfide worms and scale worms colonize the summit of El Guapo chimney, which vents 350°C boiling fluids. Credit: UW/NSF-OOI/WHOI, V18.

Near the summit of the ~16 m-tall El Guapo chimney, sulfide worms, and tubeworms colonize the younger part of the new sulfide growth. Credit: UW/NSF-OOI/WHOI, V18.

A rattail fish, 1500 m water depth, investigates the ROV Jason looking at a small chimney complex by the 16 m-tall chimney called El Guapo. Credit: UW/NSF-OOI/WHOI, V18.

The summit of the 9 meter chimney in the International District Hydrothermal Field is covered in a beautiful tubeworm bush, limpets, and blue ciliates. It now hosts two chimlets venting high-temperature clear fluids. Credit: UW/NSF-OOI/WHOI, V18.

Katie Bigham, an ex UW School of Oceanography undergraduate student who now is part of the Cabled Array team, leads the 8 hour dive in the International District Hydrothermal Field. Also shown is UW Oceanography undergraduate student Brison Grey documenting the dive at the left logging station. Julie Nelson (right), a Professor at Grays Harbor College, collects 4K video. Credit: Bing Yu Lee, University of Washington, V18.

A flow meter for hydrothermal vents is deployed at the small Diva chimney, held in the arm of Jason. Here, fluids are issuing the anhydrite-rich structure at ~ 290°C. The flow meter was designed by Leonid Germanovich, Clemson University. Credit: UW/NSF-OOI/WHOI, V18.

Every year when we are diving in the International District Hydrothermal Field, very large fish, ~ 4 feet! in length come to investigate what we are doing. They swim slowly in the 2.4°C waters. Credit: UW/NSF-OOI/WHOI, V18.

Bing Yu Lee, University of Washington ESS undergratuate student, learns to take fluid samples collected with the CTD Niskin bottles. Credit: M. Elend, University of Washington, V18.

A temperature probe is embedded in the anhydrite-rich (CaSO4) chimney called Virgin mound in the ASHES hydrothermal field. Credit: UW/NSF-OOI/WHOI; V18

The orifice at the base of the hydrothermal chimney called Mushroom is marked by a strong jet of high temperature hydrothermal fluid. Sulfide worms, scale worms and limpets are bathed in a mixture of the high temperature fluid and seawater. Credit: UW/NSF-OOI/WHOI, V18.

A CTD is deployed off the R/V Revelle at the Axial Base site. Here, water depth is 2600 m (8858 ft). Credit: M. Elend, University of Washington, V18.

Riah Buchanan, DXARTS Ph.D student at the University of Washington, learns how to process water samples onboard the R/V Revelle from taken >600 ft beneath the oceans'surface. Credit: M. Elend, University of Washington, V18.

Views from the deck of the R/V Roger Revelle never disappoints. Credit: Riah Buchanan, University of Washington, V18.

The UW-APL-built high definition camera lights up the 12-13 ft tall hot spring deposit called Mushroom, nearly 5000 ft beneath the oceans surface at the summit of Axial Seamount. Credit: UW/NSF-OOI/WHOI,V18.

On July 4, the Regional Cabled Array high definition camera, built by the UW, was reinstalled at the actively venting chimney 'Mushroom' in the ASHES hydrothermal field on Axial Seamount. Credit: UW/NSF-OOI/WHOI, V18.

VISIONS'18 Engineer

VISIONS'18 Scientist

VISIONS'18 Scientist

VISIONS'18 Scientist

VISIONS'18 Graduate Student

VISIONS'18 Engineer