Floc

Name Alias(es):

MGDS_FeatureID lowest in hierarchy:

Co-Axial

Vent Sites:

HDV (= High Diffuse Venting)

Snowblower

Activity:

active, confirmed

Maximum Temperature:

Latitude:

46.3133

Longitude:

-129.7050

Location on map:

Ocean:

N. Pacific

Region:

JdF Ridge

National Jurisdiction:

high seas

Maximum or Single Reported Depth (mbsl):

2290

Minimum Depth (mbsl):

2220

Tectonic setting:

mid-ocean ridge

Full Spreading Rate (mm/a):

56.1

Volcano Number (if applicable):

Host Rock:

basalt-hosted

Deposit Type:

LTH

Notes on Vent Field Description:

CoAxial Segment; eruption and event plumes in 1993; http://www.pmel.noaa.gov/vents/coax/coax.html; Butterfield et al. (1995): "No high-temperature fluids were found in the Flow or Floc areas"

Notes Relevant to Biology:

Year and How Discovered (if active, visual confirmation is listed first):

1993 DEEPTOW and submersible Alvin

Discovery References (text):

Embley et al., Geophys. Res. Letts., 22, 143-146, 1995, Initial results of the rapid response to the 1993 CoAxial event: Relationships between hydrothermal and volcanic processes.

Other References (text):

Butterfield et al., Phil. Trans. R. Soc. Lond. A 355, 369-386, 1997, Seafloor eruptions and evolution of hydrothermal fluid chemistry

Herzig et al. (1997) Hydrothermal activity and rift-induced tracers at Axial (Juan de Fuca ridge): Results of cruise SO-109 of R/V Sonne-ROPOS. InterRidge News 6(1): 35-38.

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