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Pacific-Antarctic Ridge, 64 S segment
Name Alias(es):
Vent Sites:
Activity:
Maximum Temperature:
Latitude:
-64.5000
Longitude:
-170.0000
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
2300
Minimum Depth (mbsl):
Tectonic setting:
Full Spreading Rate (mm/a):
58.2
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):
RDF link: