Table 2.
Summary of the measured major cat– and anions concentrations of the brine samples that were taken of the 10 different waterbodies of the halo-volcanic Dallol complex.
| Parameter | Central green pool (1) | Left green pool (2) | Right yellow pool (3) | White chimney environment (4) | Gaet’ale Pond (5) | Black lake (6) | Yellow mini pond (7) | Red micro pond (8) | Asale karst hole (9) | Karum Lake (10) |
|---|---|---|---|---|---|---|---|---|---|---|
| Major cations, ICP-MS [mM] | ||||||||||
| Na+ | 3,893 | 3,846 | 4,153 | 3,746 | 58 | 88 | 2,091 | 245 | 3,519 | 4,149 |
| Mg2+ | 156 | 157 | 148 | 128 | 1,925 | 4,705 | 1,106 | 2,016 | 124 | 115 |
| Ca2+ | 85 | 84 | 79 | 80 | 4,048 | 207 | 1,267 | 2,685 | 434 | 424 |
| K+ | 195 | 197 | 168 | 157 | 40 | 46 | 260 | 322 | 90 | 88 |
| Fe2+/3+ | 273 | 280 | 226 | 221 | 1 | 27 | 10 | 4 | 0.3 | 0.3 |
| Sr2+ | 1 | 1 | 1 | 1 | 34 | 3 | 11 | 30 | 4 | 4 |
| [B(OH)3]0 | 17 | 15 | 12 | 15 | 8 | 4 | 3 | 6 | 1 | 1 |
| Major anions, IC [mM] | ||||||||||
| Cl− | 5,834 | 5,665 | 5,857 | 5,602 | 12,168 | 10,077 | 6,767 | 10,704 | 5,211 | 5,887 |
| F− | 18 | 16 | 14 | 17 | < | < | 4 | 11 | < | < |
| Br− | 3 | 3 | 3 | 3 | 95 | 116 | 30 | 67 | 10 | 9 |
| SO42− | 58 | 54 | 42 | 61 | < | < | 2 | < | 3 | 4 |
| PO43− | < | < | < | < | < | < | < | < | < | < |
| NO3− | < | < | < | < | < | < | < | < | < | < |
| NO2− | < | < | < | < | < | < | < | < | < | < |
| HCO3− | < | < | < | < | 4 | < | < | < | 4 | 5 |
| CO32− | < | < | < | < | < | < | < | < | < | < |
| Charge balance [mEq] | −836 | −690 | −717 | −966 | 49 | −171 | 276 | −739 | −492 | −579 |
| Chao-kosmotropicity [kJ.kg−1] | −19.7 | −19.0 | −24.8 | −21.3 | 476.1 | 272.6 | 150.9 | 350.2 | 7.0 | −1.3 |
| TDS analyzed [g.l−1] | 336 | 326 | 337 | 333 | 651 | 494 | 380 | 564 | 294 | 332 |