Argo electronic still camera image taken in 1989 [Haymon et al., 1991] of the area around Mussel Bed. Scale across bottom of image is ~2 m.
Species (common):
Year: 1989
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera
Feature: EPR:9N:MusselBed
Investigator: Vicki Ferrini
Expedition: VNTR03WT
Chief Scientist: Rachel Haymon
Species:

Base of hydrothermal vent structure at East Pacific Rise. Tube worms (Riftia pachyptila) are evident in the warm waters at the base of the structure. These organisms are specially adapted for the extreme conditions (pressure, temperature, chemical) found in the environment seen here.
Species (common):
Year: 2002
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N:9_50
Investigator: Daniel Fornari
Expedition: AT07-12
Chief Scientist: Hans Schouten
Species:

Edge of Axial Summit Trough (AST) of the East Pacific Rise (EPR), showing 'bathtub rings' that are formed as lava erupts and drains back.
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

A view of the primary eruptive fissure within the Axial Summit Trough (AST) of the East Pacific Rise (EPR). The eruptive fissure is the locus of many volcanic eruptions, and is the conduit through which lava returns to the subsurface at the conclusion of an eruptive event creating the fractured pieces of lava shown here.
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

The base (and marker) of a well-studied black smoker, named P-vent, within the Axial Summit Trough (AST) of the East Pacific Rise (EPR). The orange/yellow colors in this image suggest the presence of metal oxide similar to rust. The white material may be a film-like microbial community.
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N:P
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

P-vent is the name of this well-studied black smoker (high-temperature hydrothemal vent) located just east of the primary eruptive fissure within the Axial Summit Trough (AST) of the East Pacific Rise (EPR)
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N:P
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

The hydrothermal vent complex Bio9' (pronounced "Bio-9-prime") has several spires, only some of which are emitting hot hydrothermal fluids.
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N:Bio9'
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

A hydrothermal vent structure, named Bio9'' (pronounced, "Bio-9-double prime"), located in the Axial Summit Trough (AST) of the East Pacific Rise (EPR). The device inserted into the black smoker (383 degrees Celcius) is a temperature data logger (HOBO) that used to record vent fluid temperatures over a period of time, up to several years.
Species (common):
Year: 2004
Details:
Media Type: Photograph
Data Type: Photograph
Device Type: Camera:Digital
Feature: EPR:9N:Bio9''
Investigator: Vicki Ferrini
Expedition: AT11-20
Chief Scientist: Marvin Lilley
Species:

A hydrothermal vent structure, with black smoke emanating as part of a focused plume of hot hydrothermal fluid. An instrument has been placed at the base of the venting source to monitor characteristics of the hot fluid. The cylinders in the lower left portion of this image are titanium bottles (Major Samplers) that are used to bring samples of hydrothermal fluids to the surface for laboratory analyses. The platform to which the fluid samplers are attached is the sample basket on the Deep Submergence Vehicle (DSV) Alvin.

Lava on the floor of the Axial Summit Trough (AST) of the East Pacific Rise (EPR) near the primary eruptive fissure from which most volcanic eruptions originate. During the eruption, when hot lava comes into contact with cold seawater, the top layer of the lava flow hardens, and hot molten lava continues to flow beneath the surface of the crust. As the eruption concludes, the lava drains back into the eruptive fissure and creates collapse features on the seafloor with fragmented pieces of lava like these.
Species (common):
Year: 2004
Details:
Media Type: Photograph