|
Parameter
|
MVT Anderson [37]
|
MVT Giordano and Barnes [39]
|
MVT Sverjensky[41]
|
RBRBMaGiordano[76]
|
Composite ore-brine (this study)
|
|---|
|
T/°C
|
100
|
100
|
125
|
100
|
100
|
|
pH
|
5.7 to 6.7
|
6.8 to 7.8
|
4.5 to 5.5
|
5.5 to 6.5
|
variable
|
|
log ?1?
|
-48 to -51
|
-54 to -58
|
-50.5 to -51.5
|
-49 to -51
|
variable
|
|
log ∑msulfur
|
–2
|
-2
|
-4.6
|
-2
|
-2
|
|
log ∑mcarbonate
|
-1.37
|
-2 to -4
|
-1.52
|
-2.4
|
-2
|
|
3.0
|
(2.0)
|
2.76 (1.4)
|
2.0
|
3.0
|
|
3.0
|
(1.5)
|
1.67 (1.0)
|
(1.0)
|
2.81
|
| |
(0.02)
|
0.012 (.007)
|
(0.01)
|
0.05
|
|
0.1
|
(0.05)
|
0.491 (.074)
|
(0.01)
|
0.2
|
| |
(0.02)
|
0.056 (0.013)
|
(0.005)
|
0.1
|
|
Chlorinityb
|
99530
|
99530
|
93450
|
69050
|
97450
|
|
SalinityC
|
169 200
|
169 200
|
158 865
|
132480
|
179 270
|
|
Saturation
|
|
Galena
|
X
|
X
|
X
|
X
|
X
|
|
Sphalerite
|
X
|
X
| |
X
|
X
|
|
Pyrite
| |
X
|
X
| |
xd
|
|
Hematite
|
X
| | |
x
|
xe
|
|
Magnetite
| | | | |
xf
|
|
Calcite
|
X
|
X
| |
X
| |
|
Dolomite
| | |
X
| | |
|
Quartz
| |
X
|
X
|
X
|
X
|
|
K-Feldspar
| |
X
| | |
X
|
|
Muscovite
| |
X
| | | |
|
Kaolinite
| | |
X
| | |
- aThe composition of this model ore fluid is a composite based on parameter values proposed by Rose,[23,24] Sverjensky,[31,32] and Branam and Ripley.[75] bChlorinity = Cl- concentration in mg L-1. Calculated from
and assuming a fluid density of l.l g cm-3 cSalinity = total dissolved solids (TDS) in mg L-1. Calculated assuming a fluid density of l.l g cm-3. dPyrite stability field only. eHematite stability field only. fMagnetite stability field only.
and assuming a fluid density of l.l g cm-3 cSalinity = total dissolved solids (TDS) in mg L-1. Calculated assuming a fluid density of l.l g cm-3. dPyrite stability field only. eHematite stability field only. fMagnetite stability field only.