Geofluids / 2018 / Article / Tab 4 / Research Article
Organic, Gas, and Element Geochemistry of Hydrothermal Fluids of the Newly Discovered Extensive Hydrothermal Area in the Wallis and Futuna Region (SW Pacific) Table 4 Measured gas concentration and associated stable isotopic ratios hydrothermal fluids from the Kulo Lasi and Fatu Kapa vent fields. Values of log f H2 were calculated using SUPCRT92 with the slop98 data base.
Sample name Site H2 S N2 3 HeR/Ra H2 log f H2 CH4 CO2 C2 H6 C2 H4 C3 H8 C3 H6 n-C4 H10 n-C5 H12 δ D (H2 )δ D (CH4 )δ 13 C (CO2 )δ 13 C (CH4 )δ 13 C (C2 H6 )δ 13 C (C3 H8 )δ 13 C (C4 H10 )mM mM mM mM mM mM µ Mµ Mµ Mµ Mµ Mµ MSeawater 0.59 nm nm <LOD - <LOD 2.3 nm nm nm nm nm nm nm nm nm nm nm nm nm FU-PL-05-TiG1 Kulo Lasi 0.12 nm nm <LOQ - 0.001 2.6 <LOD nm <LOD nm <LOD <LOD nm nm nm nm nm nm nm FU-PL-06-TiD4 Kulo Lasi 1.66 0.10 nm nm 1.14 - 0.001 1.3 0.02 0.005 0.006 0.004 0.005 0.005 −323 n.m. −3.2 −29 −27 −26 nm FU-PL-06-TiG3 Kulo Lasi 5.05 1.43 nm nm 19.8 −3.11 0.006 5.1 0.11 0.042 0.028 0.030 0.024 0.006 −306 n.m. −4.1 −23 −26 −26 −24 FU-PL-06-TiD1 Kulo Lasi 0.39 2.48 nm nm 6.18 −3.62 0.004 3.0 0.1 0.017 0.017 0.020 0.012 0.004 −300 n.m. −1.9 −28 −24 −26 −24 FU-PL-06-TiG1 Kulo Lasi 0.79 nm nm 1.04 −4.40 0.001 1.0 0.02 0.009 0.005 0.007 0.005 0.001 −316 n.m. −0.2 −27.2 −22 −26 −24 FU3-PL-04-TiG3 Stéphanie 0.91 0.93 8.6 0.03 −1.87 0.114 15.5 <LOD <LOD <LOD <LOD <LOD 1.7 nm nm nm nm nm nm nm FU3-PL-08-TiD1 Stéphanie 1.23 1.98 nm 0.06 −1.57 0.235 29.0 <LOD <LOD <LOD <LOD <LOD 3.2 −676 −108 −5 −21.7 nm nm nm FU3-PL-08-TiG1 Stéphanie 0.98 2.47 7.6 0.05 −1.65 0.205 25.7 <LOD <LOD <LOD <LOD <LOD 2.9 nm nm nm nm nm nm nm FU3-PL-09-TiD2 Stéphanie 0.23 0.48 7.0 0.04 −1.75 0.059 6.0 <LOD <LOD <LOD <LOD <LOD 0.7 −436 −111 −5.3 −22.2 nm nm nm FU3-PL-06-TiD1 Carla 1.34 0.50 9.6 0.01 −2.35 0.021 4.5 <LOD <LOD <LOD <LOD <LOD 0.5 nm nm nm nm nm nm nm FU3-PL-08-TiD3 Carla 0.19 3.33 9.8 0.05 −1.65 0.066 11.9 <LOD <LOD <LOD <LOD <LOD 1.5 −410 −109 −4.7 −21.5 nm nm nm FU3-PL-11-TiG3 1.13 0.78 9.8 0.03 −1.87 0.085 10.0 <LOD <LOD <LOD <LOD <LOD 1.1 nm nm nm nm nm nm nm FU3-PL-14-TiD1 1.00 1.20 8.7 0.02 −2.05 0.069 10.1 <LOD <LOD <LOD <LOD <LOD 1.1 −417 −110 −4.9 −23.8 nm nm nm FU3-PL-14-TiD2 0.85 1.05 9.8 0.03 −1.87 0.110 8.7 <LOD <LOD <LOD <LOD <LOD 1.0 −407 −113 −5 −24 nm nm nm FU3-PL-14-TiD3 0.54 0.93 8.4 0.02 −2.05 0.165 9.2 <LOD <LOD <LOD <LOD <LOD 1.0 nm nm nm nm nm nm nm FU3-PL-18-TiD1 0.98 0.89 nm nm 0.01 −2.35 0.067 9.2 <LOD <LOD <LOD <LOD <LOD 1.0 −412 −111 −4.9 −23.6 nm nm nm FU3-PL-17-TiG2 Fati Ufu 1.76 0.84 9.9 0.01 −2.59 0.070 21.5 <LOD <LOD <LOD <LOD <LOD 2.3 - −93 −2.3 −6.1 nm nm nm FU3-PL-21-TiD2 Fati Ufu 0.71 2.07 9.9 0.03 −2.11 0.111 12.6 <LOD <LOD <LOD <LOD <LOD 1.5 −410 −109 −4.4 −23.3 nm nm nm FU3-PL-20-TiD1 Tutafi 2.36 1.18 9.2 0.05 −1.89 0.156 22.2 <LOD <LOD <LOD <LOD <LOD 2.4 −396 −111 −4.5 −23.6 nm nm nm FU3-PL-21-TiD3 Tutafi 0.84 1.67 nm nm 0.03 −2.11 0.053 11.7 <LOD <LOD <LOD <LOD <LOD 1.4 −415 −109 −4.7 −24.2 nm nm nm