Permeability Changes Resulting from Quartz Precipitation and Dissolution around Upper Crustal Intrusions

Figure 3

One-dimensional model of quartz precipitation and silica dissolution accompanying heating of liquid to supercritical conditions. The panels show (a) the evolution of temperature, (b) the fluid pressure, (c) fluid density, (d) quartz solubility, and (e) rate of quartz precipitation or dissolution after twenty years of simulation time. The black lines indicate bulk fluid properties, and the properties of liquid and vapor in (c, d) are shown by the blue and red lines, respectively.