Table 3: Measured concentration of major and minor elements in hydrothermal fluids from the Kulo Lasi and Fatu Kapa vent fields. FUX-PLYY-TiDZ and FUX-PLYY-TiGZ are replicate samples taken in the same orifice, one after the other, but using 2 individual Ti syringes. max (chimney) is the maximum of the discharged fluid for the given chimney which was recorded by the probe of the submarine before sampling. max (sample) is the maximum of the fluid entering the sampler recorded during sampling by the autonomous sensor that was coupled at the nozzle of the sampler.

Sample nameZoneSiteDescriptionDepthmax (sample) 
°C
max (chimney) 
°C
pH
Kg m−3
S 
NaCl 
(wt%)
Cl 
mM
Si 
mM

mM
Br 
µM
Na 
mM
K 
mM
Mg 
mM
Ca 
mM
Li 
µM
Li 
µM
Rb 
µM
Sr 
µM
Fe 
µM
Mn 
µM
Cu 
µM
Zn 
µM
Na/ClBr/Cl 
×103
Na/K/Mn

IAPSO--Standard water-----353.25460.028.283946810.253.210.327271.390<LOD<LOD<LOD<LOD0.91.546-

FU-PL-05-TiG2Kulo LasiSouth (out)Reference water1150---1.023353.25510.129.08334579.853.210.625284.493<LOD<LOD<LOD<LOD0.831.547-
FU-PL-05-TiG1Kulo LasiSouth (in)Diffuse fluid above worms141432.8-5.961.023353.25490.229.38334579.953.210.628524.692<LOD<LOD1.41.50.831.546-
FU-PL-06-TiG4Kulo LasiNorth (in)Beehive type black smoker1475134.13326.071.022333.05161.027.082244810.649.810.533545.384123321.73.10.871.642-
FU-PL-06-TiD4Kulo LasiNorth (in)Beehive type black smoker14751363325.581.021312.84852.123.99944069.545.710.232556.17478761.31.50.842.0430.010
FU-PL-06-TiG3Kulo LasiNorth (in)Translucent smoker1475342.3330.72.241.017322.94978.28.873838818.524.611.6149156267.3479686214450.781.5210.007
FU-PL-06-TiD3Kulo LasiNorth (in)Translucent smoker1475337.7330.72.371.018333.05178.410.777040516.628.610.8115149249.442837884.2410.781.524-
FU-PL-06-TiD1Kulo LasiNorth (in)Black smoker1475343.2345.12.361.02474.373514.66.2113561229.526.510.9238249463.4988414162.51750.831.521-
FU-PL-06-TiG1Kulo LasiNorth (in)Black smoker1475343.2345.13.321.028444.068910.812.0105156523.734.910.8176197369.16845106420770.821.5240.001

FU3-PL-03-TiD3Fatu Kapa20 masfReference water1488-----3.35650.028.884148310.454.510.722516<LOD<LOD<LOD<LOD<LOD0.851.546-
FU3-PL-14-TiG2Fatu Kapa23 masfReference water15722---363.35570.028.784147710.454.210.823nmnmnmnmnmnmnm0.861.546-
FU3-PL-04-TiD3Fatu KapaStéphanieTranslucent smoker15542132794.651.03454.17040.710.9130051939.818.769.647256880<LOD169166nm<LOD0.741.813-
FU3-PL-04-TiG3Fatu KapaStéphanieTranslucent smoker15542132794.641.03444.06861.012.9124051336.522.562.842050471169nm1418.2<LOD0.751.8140.805
FU3-PL-08-TiD1Fatu KapaStéphanieTranslucent smoker155528928041.031494.57703.81.3157453554.20.898.97058041212686552656.6<LOD0.692.0100.886
FU3-PL-08-TiG1Fatu KapaStéphanieTranslucent smoker15552892803.411.031494.57724.70.7159253754.70.598.7708807122283167269nm<LOD0.702.1100.762
FU3-PL-08-TiD2Fatu KapaStéphanieTranslucent smoker15552912803.831.031484.47484.30.5153752052.90.695.3684806116<LOD148259nm<LOD0.702.110-
FU3-PL-09-TiD2Fatu KapaStéphanieBeehive type black smoker + bacterial mat16501972365.191.026403.76291.719.8105250024.437.437.823029336149nm65nm1.00.791.7210.902
FU3-PL-09-TiG2Fatu KapaStéphanieBeehive type black smoker + bacterial mat15591972365.421.025383.56001.023.895948918.544.326.414319323<LODnm23nm<LOD0.811.626-
FU3-PL-06-TiD1Fatu KapaCarlaTranslucent smoker16632782705.031.024373.45761.718.592748228.535.217.926031042101nmnmnm<LOD0.841.617-
FU3-PL-06-TiG1Fatu KapaCarlaTranslucent smoker16632782704.911.024373.45790.712.798447637.823.622.239145563<LOD1832nm<LOD0.821.713-
FU3-PL-08-TiD3Fatu KapaCarlaTranslucent smoker16642812812.781.024383.55944.51.1113947959.60.431.5690746104115nm48nm4.40.801.981.365
FU3-PL-08-TiG3Fatu KapaCarlaTranslucent smoker16642812814.171.024383.55924.01.9112047757.72.730.365572096<LOD28839nm<LOD0.811.98-
FU3-PL-11-TiD3Fatu KapaTranslucent smoker15732592584.91.025413.76371.48.3114250949.815.535.054161278<LOD3826nm<LOD0.801.810-
FU3-PL-11-TiG3Fatu KapaTranslucent smoker15732592584.431.025433.96644.11.9126851863.52.044.7733802110160nm46nm2.50.781.981.848
FU3-PL-14-TiD1Fatu KapaTranslucent smoker15722712713.731.025433.96654.21.1128251966.20.843.47648231201442864nm3.40.781.981.078
FU3-PL-14-TiG1Fatu KapaTranslucent smoker15722712713.971.025423.96614.10.8127951565.70.842.9757825119<LODnm62nm<LOD0.781.98-
FU3-PL-14-TiD2Fatu KapaTranslucent smoker1669272-4.591.03494.57694.50.7150657769.41.365.5757nmnmnmnmnmnmnm0.752.08-
FU3-PL-14-TiD3Fatu KapaTranslucent smoker1636287-4.281.03474.37293.715.0128355758.811.165.0621nmnmnmnmnmnmnm0.761.89-
FU3-PL-14-TiG3Fatu KapaTranslucent smoker1636287-5.371.028433.96722.527.0110352842.525.354.6415nmnmnmnmnmnmnm0.791.612-
FU3-PL-18-TiD1Fatu KapaTranslucent smoker15402652604.351.027444.16933.71.0134453364.91.251.1755nmnmnmnmnmnmnm0.771.98-
FU3-PL-17-TiD2Fatu KapaFati UfuGrey smoker15222993034.261.031474.37393.39.3137855538.417.666.6543nmnmnmnmnmnmnm0.751.914-
FU3-PL-17-TiG2Fatu KapaFati UfuGrey smoker15222993034.221.031484.47483.58.7140256239.815.969.7569nmnmnmnmnmnmnm0.751.914-
FU3-PL-21-TiD1Fatu KapaFati UfuGrey smoker15233023013.811.032504.67844.71.4155457747.31.486.2717nmnmnmnmnmnmnm0.742.012-
FU3-PL-21-TiG1Fatu KapaFati UfuGrey smoker15233023014.691.03454.17082.710.5129254434.719.360.3474nmnmnmnmnmnmnm0.771.816-
FU3-PL-21-TiD2Fatu KapaFati UfuWhite smoker1503-2843.271.028444.16944.90.4135953439.31.063.3573nmnmnmnmnmnmnm0.772.014-
FU3-PL-21-TiG2Fatu KapaFati UfuWhite smoker1503-2844.221.026423.96613.97.0121752032.013.350.6435nmnmnmnmnmnmnm0.791.816-
FU3-PL-20-TiD1Fatu KapaTutafiGrey smoker15803163174.11.029464.27202.60.6140954354.60.965.4628nmnmnmnmnmnmnm0.752.010-
FU3-PL-20-TiG1Fatu KapaTutafiGrey smoker15803163174.141.029464.27232.31.0140954354.70.766.4630nmnmnmnmnmnmnm0.751.910-
FU3-PL-21-TiD3Fatu KapaTutafiWhite smoker16262932942.921.028454.17015.10.9136752851.30.363.9640nmnmnmnmnmnmnm0.751.910-
FU3-PL-21-TiG3Fatu KapaTutafiWhite smoker16262932943.651.027454.17005.00.8137152851.00.863.3633nmnmnmnmnmnmnm0.752.010-