SWIR, Plume 1, Segment 17

Name Alias(es):

Vent Sites:

Activity:

active, inferred

Maximum Temperature:

Latitude:

-31.1830

Longitude:

58.5000

Location on map:

Ocean:

Indian

Region:

SWIR

National Jurisdiction:

high seas

Maximum or Single Reported Depth (mbsl):

3600

Minimum Depth (mbsl):

Tectonic setting:

mid-ocean ridge

Full Spreading Rate (mm/a):

10.6

Volcano Number (if applicable):

Host Rock:

NotProvided

Deposit Type:

NotProvided

Notes on Vent Field Description:

Convincing evidence of active hydrothermal circulation on an ultra-slow ridge was first discovered in 1997 at several locations between 58.2° and 65.8°E on the Southwest Indian Ridge (SWIR) during a plume survey using optical sensors

Notes Relevant to Biology:

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

1997 plume only

Discovery References (text):

(plume only) German et al., Nature 395, 490-493, 1998, Hydrothermal activity along the southwest Indian ridge.

Other References (text):

Sauter et al. (2002) TOBI sidescan sonar imagery of the very slow-spreading Southwest Indian Ridge: evidence for along-axis magma distribution. Earth and Planetary Science Letters 199: 81-95.

RDF link:

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