Fig. 2: Experimental determinations of carbonate mineral solubilities.

Solubility is reported as a function of pressure and temperature in water or aqueous solutions of different ionic strength: a present data, b literature data. Only studies at pressures of 1 GPa or more are included. Full symbols indicate upper limits for solubility. The solid line represents a solubility line for dolomite at 400 °C in 1 m NaCl aqueous solution. Since no magnesite crystals dissolved, the dashed line represents an upper solubility limit for magnesite at 400 °C. All solubility lines are guides to the eye. Error bars shown for our data represent estimated standard deviation. Note the log scale.