Catherine A. Peters
Environmental Geochemistry Lab
Research Group News
Deng, H.; Fitts, J.P.; Crandall, D.; McIntyre, D.; Peters, C.A. (2015) "Alterations of fractures in carbonate rocks by CO2-acidified brines", Environmental Science & Technology. 49(16) 10226-10234.
Fractures in geological formations may enable migration of environmentally-relevant fluids, as in leakage of CO2 through caprocks in geologic carbon sequestration. We investigated geochemically-induced alteration of fracture geometry in Indiana limestone specimens. Experiments were first-of-a-kind with periodic high-resolution imaging using x-ray computed tomography (xCT) scanning while maintaining high pore pressure (100 bar). ...