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Magaritz, M.

Evaporation and precipitation of sea water can be described mathematically by a formula similar to that of the Rayleigh distillation law. This chapter evaluates the chemical and isotopic changes during evaporation using the Mg concentration as a reference. The Mg concentration indicates the degree of evaporation of a solution. The chapter discusses a study that was carried out in small solution basins on the Mediterranean coast of Israel near Haifa. Mg concentration was chosen for several reasons. First, it can be accurately measured. Second, it remains in the solution without precipitating as a solid phase. Mg is removed from the solution only at the stage of concentration that was not reached by any of the studied samples. The important factors controlling the isotopic enrichment in the solution are salinity, humidity, and the isotopic differences between the vapor and the water. In natural brines, the atmospheric exchange is the predominant factor over kinetic evaporation effects.

- Chapter 10; 

- Published in the series: Developments in Sedimentology, vol. 28

 

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Studies of Marine Solution Basins Isotopic and Compositional Changes During Evaporation

Magaritz, M.

Studies of Marine Solution Basins Isotopic and Compositional Changes During Evaporation

Evaporation and precipitation of sea water can be described mathematically by a formula similar to that of the Rayleigh distillation law. This chapter evaluates the chemical and isotopic changes during evaporation using the Mg concentration as a reference. The Mg concentration indicates the degree of evaporation of a solution. The chapter discusses a study that was carried out in small solution basins on the Mediterranean coast of Israel near Haifa. Mg concentration was chosen for several reasons. First, it can be accurately measured. Second, it remains in the solution without precipitating as a solid phase. Mg is removed from the solution only at the stage of concentration that was not reached by any of the studied samples. The important factors controlling the isotopic enrichment in the solution are salinity, humidity, and the isotopic differences between the vapor and the water. In natural brines, the atmospheric exchange is the predominant factor over kinetic evaporation effects.

- Chapter 10; 

- Published in the series: Developments in Sedimentology, vol. 28

 

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