Magnesian calcites water content

Thus, larger solid/water ratios such as are encountered in pore waters of sediments lead to smaller MgC(>3 contents in the equilibrium magnesian calcites although in either case the magnesium content of the solid increases. Wollast and Reinhard-Derie presented data to support the theory from the standpoint of dissolution and some of our results for the precipitation case... 

Figure 3.1. MgC03 content of precipitated magnesian calcites as a function of the Mg to Ca molar ratio in solution. (+) Berner (1975), pH-stat experiments (a) Mucci and Morse (1983), pH-stat ( ) Kitano and Kanamori (1966), free drift ( )Glover and Sippel (1967), free drift (O) Katz (1973), free drift ( ) McCauley and Roy (1974), free drift (O) Devery and Ehlmann (1981), free drift ( )Last (1982), composition of magnesian calcites precipitating in water column, Lake Manitoba, Canada. (After Mackenzie et al., 1983.)...

Figure 5.9. MgCC>3 content of magnesian calcite component of shoal-water calcareous sands. A. 161 samples compiled by Garrels and Wollast (1978) B. Samples of mid-depth bank sands (Agegian and Mackenzie, 1989.)...

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