Figure 6.14. Metamorphosed Shale Reactions. Petrogenetic grid based on the thermodynamic model dataset SPaC (version 4/2000) developed originally by Spear and Cheney (1989). Reactions are shown for the chemical system KFMASH (K₂O-FeO-MgO-Al₂O₃-SiO₂-H₂O). Those reactions that occur in the subsystems KFASH (K₂O-FeO-Al₂O₃-SiO₂-H₂O), KMASH (K₂O-MgO-Al₂O₃-SiO₂-H₂O), and KASH (K₂O-Al₂O₃-SiO₂-H₂O) are colored as indicated. You can hide or show the subsystems with the buttons along the header bar.

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