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94SO2
Name Alias(es):
Vent Sites:
Activity:
Maximum Temperature:
Latitude:
-19.4000
Longitude:
169.9000
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
980
Minimum Depth (mbsl):
940
Tectonic setting:
Full Spreading Rate (mm/a):
50.0
Host Rock:
NotProvided
Deposit Type:
NotProvided
Notes on Vent Field Description:
knoll located in Futuna Trough, Coriolis (Southern Backarc) Troughs; crater with hydrothermal deposits; nearby but not within tenement application Nautilus Minerals (SRK report 2011); spreading rate not in Bird (2003), therefore used estimate for South New Hebrides Back-Arc Troughs from Pelletier et al. (1998)
Notes Relevant to Biology:
Iizasa et al. (1998): "There were no hydrothermal biological community and chimneys here."
Year and How Discovered (if active, visual confirmation is listed first):
1994 towed camera with temperature did not confirm activity
Discovery References (text):
[JICA (Japan International Cooperation Agency), MMAJ (Metal Mining Agency of Japan), and SOPAC (South Pacific Applied Geoscience Commission), 1995, South Pacific seafloor atlas: Japan-SOPAC cooperative study on deep sea mineral resources in the southwest Pacific 1985–1994: JICA Report no. 95-063, 24 p.]
Iizasa et al., 1998, Hydrothermal sulfide-bearing Fe-Si oxyhydroxide deposits from the Coriolis Troughs, Vanuatu backarc, southwestern Pacific: Marine Geology, 145: 1-21.
Other References (text):
McConacchy et al., Geology, 33, 61-64, 2005, New hydrothermal activity and alkalic volcanism in the backarc Coriolis Troughs, Vanuatu.
SRK Consulting (2011) Nautilus Minerals Incorporated NI43-101 Technical Report 2010 PNG, Tonga, Fiji, Solomon Islands, New Zealand, Vanuatu and the ISA. Document Reference: NAT007 Nautilus 43-101 Technical Report 2011 Rev3.docx.
Pelletier, B. et al. (1998) Current tectonics of the Tonga–New Hebrides region. Earth and Planetary Science Letters 164: 263-276.
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