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CLSC, plumes on CL1

Name Alias(es): 
MGDS_FeatureID lowest in hierarchy: 
Vent Sites: 
Maximum Temperature: 
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Maximum or Single Reported Depth (mbsl): 
Minimum Depth (mbsl): 
Tectonic setting: 
Full Spreading Rate (mm/a): 
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Host Rock: 
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Notes on Vent Field Description: 
approx. position from Fig.3, targets generated by cruise SS02/2009 ( "tow line CL1_TY_1.Two plume signatures were discovered on this line. The first is a moderate NTU plume with a very weak Eh response corresponding to where the target NS ridge crosses an older EW ridge. This plume is at 2150m depth. Further north into a basin, a very sharp and stratified NTU plume was seen higher in the water column at around 2000m. The source area for this plume is not clear as it is 300m+ off the seafloor and the nearest shallower terrain is over 3km away."
Notes Relevant to Biology: 
Year and How Discovered (if active, visual confirmation is listed first): 
2009 plume only
Discovery References (text): 
Cruise SS02/2009: Hydrothermal plume and structural geology mapping in the Tonga/Fiji region (
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):