Geochemical balance of some elements in seawater

Table
Geochemical balance of some elements in seawater
element potential amount supplied to oceans (g/ton) amount present in seawater (g/ton) percentage in solution
lithium 39  0.17 0.4
boron 2  4.5 250 
fluorine 540  1.3 0.2
sodium 16,980  10,800  64 
magnesium 12,540  1,290  10 
phosphorus 708  0.09 0.01
sulfur 312  904  290 
chlorine 188  19,400  10,300 
potassium 15,540  392  2.5
calcium 21,780  411  1.9
arsenic 3  0.003 0.1
bromine 0.97 67  6,900 
rubidium 186  0.12 0.06
strontium 180  8.1 4.6
iodine 0.18 0.06 33 
cesium 4  0.0003 0.008
barium 150  0.02 0.01
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Universalium. 2010.

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