570 



CYCLES OF ORGANIC AND IXORGAXIC SUBSTANCES 



Table IV. Amounts of Various Elements per Liter Average Sea Water" 



° n moles in sediments; c moles in solution. Tentative formulas for main dissolved 

 species, and solids at equilibrium are given. Many elements may, at equilibrium, form 

 not a separate solid phase but solid solutions with compounds of more abundant ele- 

 ments. This may be true also where a formula for a solid is given (CoOOH may dissolve 

 in FeOOH, PbO., in MnO.>, see te.xt). 



* May disappear on adding following elements. 



