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VFR, ELSC7
Name Alias(es):
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
Activity:
Maximum Temperature:
Latitude:
-22.8833
Longitude:
-176.7500
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
2050
Minimum Depth (mbsl):
Tectonic setting:
Full Spreading Rate (mm/a):
36.7
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
Crowhurst et al. (2009): "new venting field discoveries at ...far southern Valu Fa ridge are beyond any previously known areas of hydrothermal activity"; position from Fig.1, intersection of three tow lines in cruise report SS02/2009 (http://www.marine.csiro.au/nationalfacility/voyagedocs/2009/MNF-SS2-09_sum.pdf): "a good Eh anomaly with associated weak ΔNTU anomaly at a depth of about 1950m."; note: added 100m to plume depth for approximate water depth
Notes Relevant to Biology:
Year and How Discovered (if active, visual confirmation is listed first):
2009 plume and dredge only
Discovery References (text):
Cruise SS02/2009: Hydrothermal plume and structural geology mapping in the Tonga/Fiji region (http://www.marine.csiro.au/nationalfacility/voyagedocs/2009/MNF-SS2-09_sum.pdf)
Crowhurst et al. (2009) Discovery of new hydrothermal venting sites in the Lau Basin, Tonga Back-Arc. AGU Fall Meeting abstract #OS13A-1180.
Other References (text):
RDF link: