RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 19, ES5006, doi:10.2205/2019ES000677, 2019

Figure 3. Fluid pressure as a function of the weight fraction of the reacted silica (in the initial mixture dolomite plus silica) is calculated with simplified micromechanical model. We assume that decarbonatisation reaction follows equilibrium trajectory $P = P_{\mathrm{eq}} (T)$. Initial porosity ($\varepsilon_0$) filled with CO$_2$ fluid at $P_0= 2$ GPa is indicated in legend. Thick dashed line depicts diamond stability boundary.

 
Citation: Simakin A. G. (2019), Poroelastic response to rapid decarbonatisation as a mechanism of the diamonds formation in the mantle wedge of Kamchatka, Russ. J. Earth Sci., 19, ES5006, doi:10.2205/2019ES000677.
 

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