477
Processes in the Oceans
[H 2 S] (µM)
0
10
20
30
40
50
60
Concentration (µM)
–20
0
20
40
60
80
100
120
140
TCO 2
Si
NH 4
+
PO 4
3–
Figure 10.63
Plots of the changes in concentration of ammonia, phosphate, silicate, and total carbon dioxide in anoxic waters
versus the concentration of H 2 S.
Time (y)
1950
1960
1970
1980
1990
Potential Temp. (°C)
16.6
16.7
16.8
16.9
17.0
Figure 10.64
The temporal changes of potential temperature of water below 1200 m in the Cariaco Trench.
Processes in the Oceans
[H 2 S] (µM)
0
10
20
30
40
50
60
Concentration (µM)
–20
0
20
40
60
80
100
120
140
TCO 2
Si
NH 4
+
PO 4
3–
Figure 10.63
Plots of the changes in concentration of ammonia, phosphate, silicate, and total carbon dioxide in anoxic waters
versus the concentration of H 2 S.
Time (y)
1950
1960
1970
1980
1990
Potential Temp. (°C)
16.6
16.7
16.8
16.9
17.0
Figure 10.64
The temporal changes of potential temperature of water below 1200 m in the Cariaco Trench.