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Dugong submarine volcano
MGDS_FeatureID lowest in hierarchy:
Activity:
Latitude:
-15.4500
Longitude:
-175.7000
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
1170
Tectonic setting:
Full Spreading Rate (mm/a):
108.2
Volcano Number (if applicable):
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
Arculus et al. (2008) cruise report (http://www.cmar.csiro.au/datacentre/process/data_files/cruise_docs/SS200807sum.pdf): "A large (45 km diameter) volcano (Dugong) is located 25km northwest of the subaerial backarc volcano of Niuafo’ou, and is surmounted by a caldera with a small hydrothermal plume near its base"; Lupton et al. (2012): "Dugong Volcano ∼50 km southeast of the RR located on a NNW-SSE-trending ridge which includes the subaerial volcano of Niuafo'ou", "Dugong Volcano may host moderate hydrothermal activity"; the spreading rate for this location was taken from the RR at same latitude
Year and How Discovered (if active, visual confirmation is listed first):
2008 plume only
Discovery References (text):
Arculus et al. (2008) cruise SS07/2008 report, http://www.cmar.csiro.au/datacentre/process/data_files/cruise_docs/SS200807sum.pdf, accessed 27 May 2015.
Lupton, J. E., R. J. Arculus, J. Resing, G. J. Massoth, R. R. Greene, L. J. Evans, and N. Buck (2012), Hydrothermal activity in the Northwest Lau Backarc Basin: Evidence from water column measurements, Geochem. Geophys. Geosyst., 13, Q0AF04, doi:10.1029/2011GC003891.
RDF link: