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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 2005:
The NeMO 2005 expedition went to Axial seamount May 10-13, aboard the R/V Wecoma. The primary objective of the 2005 cruise was to recover and redeploy several seafloor monitoring instruments that were deployed last year - a Remote Access Sampler (RAS) and 2 Bottom Pressure Recorders (BPRs). Four CTD casts were also made to sample the hydrothermal plumes above the volcano.

View the final cruise report and instrument map here (pdf file).

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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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