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Table 45.1 End-member concentrations of aqueous components in the hydrothermal fluids for all the sites in the Southern Mariana Trough in this study

From: Chemical and Isotopic Compositions of Hydrothermal Fluids at Snail, Archaean, Pika, and Urashima Sites in the Southern Mariana Trough

Site        CB AES Color
Tmax pHmin Alk. (meq) ΔAlk (meq) Na (mM) ΔNa (mM) Na (mM) ΔNa (mM) K (mM) ΔK (mM) Li (μM) ΔLi (μM) Ca (mM) ΔCa (mM) Sr (μM) ΔSr (μM) Ba (μM) Mn (mM) ΔMn (mM) Fe (mM) ΔFe (mM) Cl (mM) ΔCl (mM) SO4 (mM) ΔSO4 (mM) Br (mM) ΔBr (mM) NO3 (μM) ΔNO3 (μM) NH4 (μM) Si (mM) ΔSi (mM) Si (mM) ΔSi (mM) B (μM) ΔB (μM)
Snail 116 3.52 −0.94 ±0.04 454 ±21 466 ±91 31.3 ±0.7 555 ±22 29.9 ±1.1 71.9 ±4.0 N.D. 2.08 ±0.08 0.64 ±0.02 588 ±6 −1.71 ±0.37 0.72 ±0.10 −269 ±53 N.D. 18.6 ±0.8 18.7 ±0.3 1,112 ±37
Archaean 343 2.94 −1.41 ±0.03      32.8 ±0.5 500 ±8    76.6 ±1.5 N.D.        0.01 ±0.03 0.75 ±0.02    N.D. 16.7 ±0.3 16.7 ±0.1 959 ±34
 2004      388 ±11        20.6 ±0.5     1.06 ±0.02 2.55 ±0.06 466 ±3      −0.82 ±0.04        
 2005–2010      315 ±7 345 ±33      15.7 ±0.3     1.2 ±0.02 3.00 ±0.06 407 ±2      −372 ±5,609        
Pika 330 2.86 −1.14 ±0.02      32.6 ±0.3 644 ±9 39.4 ±0.5 122.8 ±1.7 N.D. 1.13 ±0.01 7.38 ±0.10    −1.57 ±0.06 0.95 ±0.02    N.D. 16.9 ±0.2 16.4 ±0.1   
 2003–2005      461 ±7 495 ±63               603 ±3      −992 ±3,483       1,130 ±43
 2010      436 ±15 351 ±75               460 ±5      −1.5 ±0.2       673 ±10
Urashima 280 2.85 −1.44 ±0.03 447 ±11 515 ±56 31.7 ±0.5 764 ±28 35.2 ±0.8 106.2 ±6.3 N.D. 2.22 ±0.08 6.37 ±0.13 629 ±4 −3.02 ±0.20 0.81 ±0.02 −0.9 ±0.3 N.D. 17.0 ±0.4 16.5 ±0.1 1,109 ±45
  1. CB means the Na concentrations are calculated by charge balance
  2. AES and Color means the Si concentration are measured by ICP-AES and colorimetry, respectively