Table 5 Minerals in salt samples recalculated from leached salts
From: From freshwater inflows to salt lakes and salt deposits in the Qaidam Basin, W China
Salt minerals | Formulaa | QD2a | QD4a | QD5a | QD5b | QD5c | QD5d | QD6a2 | QD6b2 | QD7a | QD7b |
|---|---|---|---|---|---|---|---|---|---|---|---|
Halite | NaCl | 98.8 | 99.4 | 79.2 | 98.1 | 61.1 | 94.9 | 88.9 | 90.5 | 79.7 | 95.0 |
Anhydrite, Gypsum | CaSO4 | 0.2 | – | 0.7 | 0.5 | 34.7 | 0.2 | – | – | 0.1 | 2.4 |
Kieserite, Epsomite | MgSO4 | 0.2 | – | 4.1 | 0.8 | 0.1 | 3.5 | – | – | 0.1 | 0.2 |
Bischofite | MgCl2 | – | 0.2 | – | – | 1.7 | – | 2.0 | 1.5 | – | – |
Sylvite | KCl | – | 0.0 | – | – | 2.5 | – | 4.4 | 3.8 | – | – |
Thenardite | Na2SO4 | – | – | 15.8 | 0.5 | – | 1.0 | – | – | 20.0 | 2.3 |
Arcantite | K2SO4 | – | – | 0.2 | 0.1 | – | 0.4 | – | – | 0.1 | 0.1 |
Sellaite | MgF2 | – | – | – | – | – | – | – | – | – | – |
Antarcticite | CaCl2 | 0.9 | 0.4 | – | – | – | – | 4.6 | 4.2 | – | – |
Nitromagnesite | Mg(NO3)2 | – | – | – | – | – | – | – | – | – | – |
Total | Â | 100.1 | 100.0 | 100.0 | 100.0 | 100.1 | 100.0 | 99.9 | 100.0 | 100.0 | 100.0 |
Salt minerals | Formulaa | QD83 | QD12a | QD13a | QD14 | QD16 | QD17a | QD18a | QD19a | QD29a | QD29b |
|---|---|---|---|---|---|---|---|---|---|---|---|
Halite | NaCl | 6.8 | 95.0 | 31.5 | 36.1 | 99.2 | 97.7 | 98.8 | 99.4 | 98.1 | 99.5 |
Anhydrite, Gypsum | CaSO4 | 66.7 | 0.5 | 41.1 | 0.1 | – | 1.8 | – | 0.1 | 0.8 | 0.2 |
Kieserite, Epsomite | MgSO4 | – | 0.8 | 6.6 | 19.6 | – | – | – | – | – | – |
Bischofite | MgCl2 | 2.1 | 3.6 | 19.3 | 30.0 | 0.3 | 0.1 | 0.9 | 0.3 | 0.9 | 0.1 |
Sylvite | KCl | 0.2 | 0.2 | 1.1 | 14.2 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 |
Thenardite | Na2SO4 | – | – | – | – | – | – | – | – | – | – |
Arcantite | K2SO4 | – | – | – | – | – | – | – | – | – | – |
Sellaite | MgF2 | – | – | 0.1 | – | – | – | – | – | – | – |
Antarcticite | CaCl2 | 24.2 | – | – | – | 0.5 | 0.3 | 0.1 | 0.1 | 0.1 | 0.1 |
Nitromagnesite | Mg(NO3)2 | – | – | 0.3 | – | – | – | – | – | – | – |
Total | Â | 100.0 | 100.1 | 100.0 | 100.0 | 100.1 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |