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Rapa Nui
Name Alias(es):
21 33'S, EPR
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
Brandon
Feathers
Krasnov
Gromit
Activity:
Maximum Temperature:
405
Latitude:
-21.5620
Longitude:
-114.3000
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
2845
Minimum Depth (mbsl):
2838
Tectonic setting:
Full Spreading Rate (mm/a):
148.7
Host Rock:
MORB
Deposit Type:
NotProvided
Notes on Vent Field Description:
Von Damm et al. (2003): "(287 bar and 405°C) place the Brandon fluids very close to the critical point of seawater "
Notes Relevant to Biology:
Alvin dive 3335 log includes "Anemones, Bacterial mats, Crabs, Other worms, Shrimp, Vent fish"; 2004 BIOSPEEDO cruise noted shrimp at Brandon, alvinellids at Krasnov, mussels at Gromit
Year and How Discovered (if active, visual confirmation is listed first):
1999 submersible Alvin; 1987-1988 deposits only
Discovery References (text):
(deposits only) Krasnov et al., (1997) Morphotectonics, Volcanism and Hydrothermal Activity on the East Pacific Rise between 21º12'S and 22º40'S. Marine Geophysical Researches 19: 287–317
Von Damm et al., Earth Plant. Sci. Lett., 206, 365-378, 2003, Extraordinary phase separation and segregation in vent fluids from the southern East Pacific Rise.
Other References (text):
Jollivet, D. et al. (2004) The BIOSPEEDO cruise: a new survey of hydrothermal vents along the South East Pacific Rise from 7 24'S to 21 33'S. InterRidge News 13: 20-26.
RDF link: