# Hydrogeochemistry of Fault-Related Hot Springs in the Qaidam Basin, China
## 3 Sampling Analysis: Methods and Results
\begin{table}
\begin{tabular}{c c c c c} \hline
**Sampling Springs** & **YTBLK** & **AK** & **LMY** & **GS** \\ \hline Longitude (\({}^{\circ}\)) & 90.0278 E & 90.5786 E & 91.7244 E & 92.5959 E \\ Latitude (\({}^{\circ}\)) & 38.3991 N & 38.1166 N & 37.8124 N & 37.2100 N \\ Elevation (m) & 2882 & 2848 & 2835 & 2814 \\ Sampling date & 2020.10 & 2020.10 & 2020.10 & 2020.10 \\ Water temperature (\({}^{\circ}\)C) & 9.7 & 14.0 & 6.8 & 9.5 \\ PH & 6.97 & 6.81 & 7.75 & 7.72 \\ EC (\(\mathrm{\SIUnitSymbolMicro s\text{-}cm}^{-1}\)) & 4910 & 10,090 & 2412 & 1251 \\ Li\({}^{+}\) (mg\(\cdot\)L\({}^{-1}\)) & 2.50 & 0.96 & 0.05 & 0.00 \\ Na\({}^{+}\) (mg\(\cdot\)L\({}^{-1}\)) & 6793 & 818.7 & 369.7 & 175.4 \\ K\({}^{+}\) (mg\(\cdot\)L\({}^{-1}\)) & 268 & 15.01 & 12.94 & 7.52 \\ Mg\({}^{2+}\) (mg\(\cdot\)L\({}^{-1}\)) & 3459 & 661 & 39.70 & 19.50 \\ Ca\({}^{2+}\) (mg\(\cdot\)L\({}^{-1}\)) & 855.23 & 567.99 & 76.57 & 43.31 \\ F (mg\(\cdot\)L\({}^{-1}\)) & 2.12 & 0.01 & 1.89 & 1.54 \\ Cl\({}^{-}\) (mg\(\cdot\)L\({}^{-1}\)) & 22,121 & 3087 & 524 & 238 \\ Br\({}^{2-}\) (mg\(\cdot\)L\({}^{-1}\)) & 0.00 & 8.65 & 0.00 & 0.65 \\ SO\({}_{4}\)\({}^{2-}\) (mg\(\cdot\)L\({}^{-1}\)) & 4004 & 588 & 450 & 124 \\ NO\({}_{3}\)\({}^{2-}\) (mg\(\cdot\)L\({}^{-1}\)) & 194 & 0.00 & 13.00 & 2.23 \\ CO\({}_{3}\)\({}^{2-}\) (mg\(\cdot\)L\({}^{-1}\)) & 0.00 & 0.00 & 0.00 & 0.00 \\ HCO\({}_{3}\)\({}^{-}\) (mg\(\cdot\)L\({}^{-1}\)) & 2055 & 2830 & 231 & 276 \\ Chemical type & Na-Mg-Cl & Mg-Na-Cl-HCO\({}_{3}\) & Na-Cl-SO\({}_{4}\) & Na-Cl-HCO\({}_{3}\) \\ Ag (ug\(\cdot\)L\({}^{-1}\)) & 0.045 & 0.017 & 0.023 & 0.02 \\ Al (ug\(\cdot\)L\({}^{-1}\)) & 10.9 & 23.8 & 7.55 & 121 \\ Ba (ug\(\cdot\)L\({}^{-1}\)) & 24.3 & 41.7 & 15.1 & 29.8 \\ Be (ug\(\cdot\)L\({}^{-1}\)) & 0.16 & 0.765 & 0.035 & 0.01 \\ Cd (ug\(\cdot\)L\({}^{-1}\)) & 0.848 & 0.069 & 0.063 & 0.041 \\ Co (ug\(\cdot\)L\({}^{-1}\)) & 15 & 29.7 & 0.313 & 0.335 \\ Cr (ug\(\cdot\)L\({}^{-1}\)) & 974 & 8.65 & 10.8 & 4.45 \\ Cu (ug\(\cdot\)L\({}^{-1}\)) & 46.5 & 118 & 33.8 & 34.3 \\ Fe (ug\(\cdot\)L\({}^{-1}\)) & 14,607 & 6849 & 117 & 390 \\ Li (ug\(\cdot\)L\({}^{-1}\)) & 2005 & 870 & 58.2 & 26.5 \\ Mn (ug\(\cdot\)L\({}^{-1}\)) & 2240 & 1617 & 2.23 & 9.47 \\ Mo (ug\(\cdot\)L\({}^{-1}\)) & 0.067 & 0.207 & 7.77 & 5.8 \\ Ni (ug\(\cdot\)L\({}^{-1}\)) & 74.6 & 62.9 & 7.41 & 4.41 \\ Pb (ug\(\cdot\)L\({}^{-1}\)) & 0.633 & 0.949 & 0.494 & 0.783 \\ Sb (ug\(\cdot\)L\({}^{-1}\)) & 0.154 & 0.087 & 0.046 & 0.121 \\ Se (ug\(\cdot\)L\({}^{-1}\)) & 3.71 & 1.67 & 0.309 & 0.158 \\ Sn (ug\(\cdot\)L\({}^{-1}\)) & 0.677 & 0.711 & 0.726 & 0.871 \\ Sr (ug\(\cdot\)L\({}^{-1}\)) & 8995 & 11,620 & 1749 & 699 \\ Th (ug\(\cdot\)L\({}^{-1}\)) & 17.4 & 0.029 & 0.003 & 0.036 \\ Ti (ug\(\cdot\)L\({}^{-1}\)) & 410 & 6.8 & 1.77 & 8.42 \\ U (ug\(\cdot\)L\({}^{-1}\)) & 65.3 & 92.9 & 10.4 & 10.7 \\ V (ug\(\cdot\)L\({}^{-1}\)) & 183 & 54.2 & 15.2 & 9.37 \\ Zn (ug\(\cdot\)L\({}^{-1}\)) & 28.3 & 28.2 & 13.2 & 16.2 \\ B (ug\(\cdot\)L\({}^{-1}\)) & 12,407 & 878 & 605 & 285 \\ SiO\({}_{2}\) (mg\(\cdot\)L\({}^{-1}\)) & 21.83 & 52.22 & 7.23 & 8.58 \\ \(\Delta\)D (\(\mathrm{\SIUnitSymbolMicro s\text{-}}\)) & \(\mathrm{-}\)50.0 & \(\mathrm{-}\)68.6 & \(\mathrm{-}\)54.5 & \(\mathrm{-}\)56.8 \\ \(\delta\)O (\(\mathrm{\SIUnitSymbolMicro s\text{-}}\)) & \(\mathrm{-}\)6.9 & \(\mathrm{-}\)8.6 & \(\mathrm{-}\)7.9 & \(\mathrm{-}\)8.1 \\ \hline \end{tabular}
\end{table} 
Table 1: Sampling location and time, and physical and chemical composition of water samples. tively. The CO\({}_{2}\)/\({}^{3}\)He ratios of the samples were 29.56 \(\times\) 10\({}^{9}\) and 44.98 \(\times\) 10\({}^{9}\), respectively. The \(\delta\)\({}^{13}\)CCO\({}_{2}\) (PDB) values of the samples were \(-\)3.4% and \(-\)6.4%, respectively.