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NWLSC, Southern Caldera

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Notes on Vent Field Description: 
NWLSC surveyed on cruise SS07-2008 NoLauVE cruise, cruise report ( "The Northwest Lau Spreading Centre (NWLSC) forms an asymmetric, inflated ridge terminated by right-lateral transcurrent faulting at both northern and southern terminations, with two large calderas... astride the Ridge."; Lupton et al. (2012): "Hydrothermal activity in the Southern Caldera was revealed by a sharp decrease in light transmission, TMn, and 3He at depths below 2000 m in cast NLH-30, which was positioned near the western caldera wall", "consistent with the presence of low temperature diffuse venting"
Notes Relevant to Biology: 
Year and How Discovered (if active, visual confirmation is listed first): 
2008 plume only
Discovery References (text): 
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.
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