Geofluids / 2019 / Article / Tab 3 / Research Article
The Sensitivity of Temperature to Tachyhydrite Formation: Evidence from Evaporation Experiments of Simulated Brines Based on Compositions of Fluid Inclusions in Halite Table 3 Ionic compositions and Jänecke coordinates of the studied brine samples, measured at different densities during experimental evaporation at 25°C, 35°C, and 50°C.
Temperature No. Masses Density3 ) Ionic compositions (mmol/kg H2 O) Jänecke coordinates Solid phases Mg K Ca Na Cl 2KCl CaCl2 MgCl2 25 Initial studied brine 1000.00 1.2043 751 264 262 3800 6082 11.54 22.86 65.60 — Ep-b-1 764.34 1.2187 1012 355 350 3614 6692 11.53 22.76 65.72 Ha Ep-b-2 456.72 1.2382 1713 595 592 2023 7221 11.43 22.74 65.83 Ha Ep-b-3 313.88 1.2745 2630 864 914 750 8700 10.87 22.99 66.14 Ha Ep-b-4 275.43 1.2935 3072 704 1037 420 9334 7.89 23.25 68.86 Ha+Sy Ep-b-5 194.16 1.3106 3583 164 1480 205 10198 1.59 28.78 69.63 Ha+Car 35 Initial studied brine 1000.00 1.2008 715 316 283 3830 6137 13.66 24.47 61.87 — Ep-g-1 616.76 1.2249 1215 440 301 3444 6914 12.68 17.35 69.97 Ha Ep-g-2 456.11 1.2345 1544 574 610 2495 7371 11.77 24.98 63.26 Ha Ep-g-3 386.33 1.2451 1863 661 647 1896 7573 11.64 22.77 65.59 Ha Ep-g-4 295.57 1.2787 2571 924 909 847 8724 11.72 23.06 65.22 Ha Ep-g-5 226.73 1.3055 3103 752 1179 434 9741 8.08 25.31 66.61 Ha+Sy+Car Ep-g-6 180.06 1.3247 3497 171 1592 321 10657 1.65 30.76 67.59 Ha+Sy+Car Ep-g-7 128.85 1.4025 4181 41 2461 253 13562 0.31 36.94 62.75 Ha+Car+Bis Ep-g-8 89.56 1.4153 3963 42 2571 156 13248 0.32 39.22 60.46 Ha+Bis 50 Initial studied brine 1000.00 1.2019 790 273 264 3900 6281 10.22 15.97 73.80 — Ep-h-1 700.58 1.2156 1072 383 306 3829 6964 12.19 19.49 68.32 Ha Ep-h-2 485.31 1.2284 1562 555 439 2766 7316 12.18 19.26 68.56 Ha Ep-h-3 278.66 1.2876 2961 1057 828 958 9557 12.24 19.18 68.58 Ha+Sy Ep-h-4 224.56 1.3438 3495 797 1092 447 10371 8.00 21.90 70.10 Ha+Sy+Car Ep-h-5 185.91 1.3519 3525 401 1269 838 10790 4.02 25.40 70.58 Ha+Car Ep-h-6 153.25 1.3594 3876 229 1447 421 11237 2.10 26.62 71.28 Ha+Car Ep-h-7 102.59 1.4266 4656 72 2423 226 14359 0.50 34.05 65.44 Ha+Car+Bis Ep-h-8 86.68 1.4404 4420 62 3149 225 14722 0.41 41.44 58.16 Ha+Bis+Tac
