Geology Reference
In-Depth Information
Table 4.1 Composition of selected hydrothermal fluids (Compilation from Chenevoy and Piboule
2007
)
(a) Continental
T(
C)
pH
Na + K
(ppm)
Ca (ppm)
Cl (ppm)
SO
4
(ppm)
SiO
2
(ppm)
CO
3
(ppm)
H
2
S (ppm)
Cu (ppm)
Pb (ppm)
Zn (ppm)
Broadlands-Ohaaki, New
Zealand (Simmons and
Browne
2000
)
260
6.3
541
7
25
19
170
1,144
Waiotapu, New Zealand
(Hedenquist and Henley
1985
)
220
5.9
809
10
732
102
353
1,074
86
250
6
Rotokawa, New Zealand
(Krupp and Seward
1987
)
339
7.1
563
2.5
871
35.8
436
496
27
50
100
318
5.7
583
1.6
807
5.2
580
3,788
228
40
25
329
6.7
355
1.1
515
11
579
4,575
106
25
175
125
Matsao, Taiwan (Ellis
1979
)
245
2.4
6,390
1,470
13,400
350
369
2
1
13
Salton Sea, California
(Ellis
1979
)
340
5.5
77,800
40,000
184,000
10
8
102
540
T(
C)
(b) Oceanic
pH
Na + K
(ppm)
Ca (ppm)
Cl (ppm)
SO
4
(ppm)
SiO
2
(ppm)
CO
3
(ppm)
H
2
S (ppm)
Cu (ppm)
Pb (ppm)
Zn (ppm)
East-Pacific Ridge 21
N, NGS
and HG (Von Damm
1990
)
273
3.8
12,736
832
20,555
975
224
1.3
37.8
2,600
351
3.3
1,121
468
17,608
37
780
286
2,800
74.3
6,760
East-Pacific Ridge 13
N and
11
N (Von Damm
1990
)
354
3.1
13,745
2,148
25,276
966
279
5.6
325
347
3.1
12,104
900
19,986
940
292
21.7
6,825
Mid-Atlantic Ridge, TAG and
MARK-1 (Von Damm
1990
)
321
14,095
1,040
23,394
1,100
350
3.9
12,650
396
19,844
910
201
1,088
10.3
3,250
Juan de Fuca Ridge, Axial
Volcano Inferno (Von
Damm
1990
)
328
3.5
12,570
1,872
22,187
755
238
768
23.4
7,435
Juan de Fuca Ridge, Vent-1
(Von Damm
1990
)
285
3.2
16,658
3,388
31,808
1,140
192
128
39,000
Gulf of California, Guaymas,
4 and 5 (Von Damm
1990
)
315
5.9
12,719
1,360
21,264
690
163
70
47.6
1,235
287
5.9
12,905
1,236
21,200
620
139
6
4.1
143
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