Pacific-Antarctic Ridge, 60 S segment

Name Alias(es):

Vent Sites:

Activity:

active, inferred

Maximum Temperature:

Latitude:

-60.0000

Longitude:

-152.0000

Location on map:

Ocean:

Southern

Region:

Pacific-Antarctic Ridge

National Jurisdiction:

high seas

Maximum or Single Reported Depth (mbsl):

2300

Minimum Depth (mbsl):

Tectonic setting:

mid-ocean ridge

Full Spreading Rate (mm/a):

69.4

Volcano Number (if applicable):

Host Rock:

NotProvided

Deposit Type:

NotProvided

Notes on Vent Field Description:

Winckler et al. (2010, in review): "We use the distribution of helium isotopes along an oceanic transect at 67°S to identify previously unobserved hydrothermal activity in the Pacific sector of the Southern Ocean.", "We identify three complete ridge segments, a portion of a fourth segment and two isolated locations on the Pacific Antarctic Ridge between 145°W and 175°W (representing ~540 km of ridge in total) as the potential source of the newly observed plume."

Notes Relevant to Biology:

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

2009 plume only

Discovery References (text):

(plume only) Winckler, G. et al. (2009) Helium isotopes reveal hydrothermal activity in the Southern Ocean: Filling the blank spot on the global map of hydrothermal venting. Goldschmidt Conference abstract

Winckler, G., et al. (2010, in review) Mantle helium reveals Southern Ocean hydrothermal venting.

Other References (text):

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