Geofluids / 2019 / Article / Tab 5 / 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 5 Major-ion chemical compositions and Jänecke coordinates of primary fluid inclusions from the Sergipe basin and the Congo basin.
Sample Inclusion type Mg K Ca Na Cl 2KCl CaCl2 MgCl2 mmol/kg H2 O Jänecke coordinates Aptian: Sergipe basin, Brazil, Muribeca Formation [14 ] 792.2 m Chevron 540 180 420 4300 6410 8.57 40.00 51.43 792.2 m Chevron 970 250 570 3300 6630 7.51 34.23 58.26 792.2 m Chevron 1090 260 570 3130 6730 7.26 31.84 60.89 792.2 m Chevron 1100 240 630 3040 6750 6.49 34.05 59.46 792.2 m Chevron 710 220 560 3780 6540 7.97 40.58 51.45 792.2 m Chevron 910 240 620 3340 6660 7.27 37.58 55.15 792.2 m Chevron 1010 240 640 3170 6710 6.78 36.16 57.06 792.2 m Chevron 1130 250 640 2980 6780 6.60 33.77 59.63 792.2 m Chevron 360 190 500 4480 6400 9.95 52.36 37.70 792.2 m Chevron 900 250 600 3400 6650 7.69 36.92 55.38 792.2 m Chevron 860 230 600 3460 6620 7.30 38.10 54.60 792.2 m Chevron 1120 290 640 2990 6800 7.61 33.60 58.79 792.2 m Chevron 1460 310 680 2430 7030 6.75 29.63 63.62 Average 935 242 590 3369 6670 7.52 36.83 55.65 Aptian: Congo basin, Congo, Loeme Formation [14 ] 746 m Chevron 1580 220 1060 1830 7330 4.00 38.55 57.45 746 m Chevron 1020 200 930 2760 6850 4.88 45.37 49.76 746 m Chevron 910 180 870 3000 6750 4.81 46.52 48.66 746 m Chevron 800 170 830 3240 6680 4.96 48.40 46.65 780 m Chevron 2140 160 1320 1020 8100 2.26 37.29 60.45 780 m Chevron 1180 150 1310 2060 7200 2.92 51.07 46.00 780 m Chevron 1980 160 1600 950 8270 2.19 43.72 54.10 869 m Chevron 2520 140 2610 240 10640 1.35 50.19 48.46 869 m Chevron 3010 130 2780 130 11840 1.11 47.48 51.41 869 m Chevron 2750 150 2700 180 11240 1.36 48.87 49.77 869 m Chevron 2770 140 2640 190 11140 1.28 48.18 50.55 869 m Chevron 2120 110 2250 500 9340 1.24 50.85 47.91 869 m Chevron 1220 90 1970 1330 7800 1.39 60.90 37.71 869 m Chevron 2840 130 2590 180 11170 1.18 47.13 51.68 869 m Chevron 2170 100 2350 430 9580 1.09 51.42 47.48 869 m Chevron 2640 120 2460 250 10570 1.16 47.68 51.16 Average 1978 147 1892 1143 9031 2.32 47.73 49.95