NeMO 2004 banner image (tubeworms)
A seafloor observatory at an active underwater volcano
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NeMO studies the dynamic interactions between submarine volcanic activity and seafloor hotsprings at an observatory, Axial seamount. A volcanic eruption occured at Axial in January 1998, destroying some hydrothermal vent sites and creating new ones. Since then NeMO scientists have been assessing the impact of the eruption and documenting the on-going changes in Axial's summit caldera.

image from Rumbleometer virtual reality image of deepsea octopus image of tubeworms at hydrothermal vent image of deepsea fish

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NeMO 2004 was September 18-29, 2004 on the Research Vessel Thomas Thompson using the Remotely Operated Vehicle ROPOS to further explore Axial Volcano. A new NeMO Net system was deployed to record temperature and pressure changes in near real-time as well as the ability for scientists on shore to signal the taking of chemical samples at any time.

View the NeMO 2004 cruise report (pdf) here.

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NOAA | OAR | PMEL | Vents Program
Pacific Marine Environmental Laboratory
Hatfield Marine Science Center
2115 SE Oregon State University Way
Newport, OR 97365

Phone: (541) 867-0274
Fax: (541) 867-3907

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