Overpressure preventing quartz cementation? - A reply

Abstract

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Overpressure development in sedimentary basins induced by chemo-mechanical compaction of sandstones

“…However, some divergences persist in literature concerning the nature of the chemically-induced compaction leading to important porosity reduction of quartzose rocks in deeper layers of sedimentary basins. The two predominant theories agree that temperature plays a key role on the whole process by affecting minerals kinetics, the main difference lies in the fact that some authors consider that the dominant mechanism is a stress independent phenomenon known as illite-mica induced dissolution (IMID) (Bjorkum, 1996;Maast, 2017), while others state that several evidences indicate that the process is in fact a stress induced compaction, which is referred to as intergranular pressure-solution (IPS) (Osborne and Swarbrick, 1999;Sheldon et al, 2003;Stricker et al, 2017). This work considers that IPS is the dominant mechanism of chemical compaction and divides the deformation processes of sandstones in two types.…”