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FRSC, South Central

Name Alias(es): 
South Central Fonualei
MGDS_FeatureID lowest in hierarchy: 
Location on map: 
National Jurisdiction: 
Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Full Spreading Rate (mm/a): 
Volcano Number (if applicable): 
Host Rock: 
Deposit Type: 
Notes on Vent Field Description: 
note: Nautilus Minerals had camera tow and FRSC02 sampled in 2009 Chief Sci R. Arculus (, (; southern section of line NEL11a on cruise SS02/2009 ( "Upon post-processing of the NEL11a southern extent tow data, we resolved another target approximately 5km south of the site central venting area. This site lies on a small ridge line between NEL11a and NEL11b and was identified by significant Eh response on the two lines."; located between Stations RC133 and RC132 reported by German et al. (2006); Baker et al. 2019: sites 22 to 25 with spreading rate 21 mm/year in Table 1;
Year and How Discovered (if active, visual confirmation is listed first): 
2004 plume only; 2006 plume and chimney samples; 2009 camera tow and sampling (activity not confirmed)
Discovery References (text): 
(plume only) German, C. et al. (2006) Hydrothermal exploration of the Fonualei Rift and Spreading Center and the Northeast Lau Spreading Center. Geochem. Geophys. Geosyst. 7, 2006GC001324;
(plume and chimney samples) Kim, J. et al. (2009) Venting sites along the Fonualei and Northeast Lau Spreading Centers and evidence of hydrothermal activity at an off-axis caldera in the northeastern Lau Basin. Geochemical Journal 43: 1-13;
cruise SS02/2009 summary (;
Other References (text): 
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;
Baker ET, Walker SL, Massoth GJ and Resing JA (2019) The NE Lau Basin: Widespread and Abundant Hydrothermal Venting in the Back-Arc Region Behind a Superfast Subduction Zone. Front. Mar. Sci. 6:382. doi: 10.3389/fmars.2019.00382;