L1 /
11
CH3041
ION FLUXES
•Seawater is not
simply evaporated riverwater
There are different sources & t (106 y) values.
There are different sources & t (106 y) values.
• Air
= atmospheric - evaporite cycling
Other = Ion exchange / Hydrothermal / Pyrite Burial
Other = Ion exchange / Hydrothermal / Pyrite Burial
Ocean
Input - Output Balance :
(1012 mol / y)
(x1018 mol)
Ion Inventory River Air Other
CO3dep.
t
Cl- 710 +6.1 -6.1
131
Na+
608 +8.5 -5.7 -2.8 78
Mg2+ 69 +5.2 -0.3 -4.3 -0.6 14
SO42- 37 +3.2 -0.3 -2.9
12
K+ 13 +1.2 -0.1 -1.1
13
Ca2+ 13 +12.5 -0.1 +4.6 -17 1.1
“CO3” 3.1 +31.9 +2.5 -34.4 0.1
