|St. Peter Sandstone, Illinois Basin
The St. Peter Sandstone is a mature quartz arenite that contains little or no silt and clay, except near its perimeter. Therefore, we conclude that the potential for rock/water reaction with high CO2 brine is low.
Odom, I. E., Doe, T. W., and Dott, R. H., Jr., 1976, Nature of feldspar-grain size relations in some quartz-rich sandstones: Journal of Sedimentary Petrology, v. 46, p. 862-870.
Odom, I. E., Willand, T. M., and Lassin, R. J., 1977, Paragenesis of authigenic minerals in St. Peter Sandstone: American Association of Petroleum Geologists Bulletin, v. 61, p. 1384-1385.