LAUSR

Water and gas, as the two most common fluids and primary geologic forces, are crucial components in various geological processes. Gas-water-rock interactions play indispensable roles in the evolution of geoenvironmental issues. For example, the accurate prediction of groundwater flow and contaminant transport requires a profound understanding of physicochemical processes that occur among liquid, solid, and gas phases [1]. At present, more attention should be paid to gas-water-rock interactions related to the transport and retention of toxic contaminants such as heavy metals and organic contaminants in aquifers and vadose zones, due to the release of toxic contaminants from intensive human activities [2]. In addition, a gas-water-rock reaction might change the stress field, groundwater seepage field, and properties of rocks and soils, which subsequently leads to the instability of slope and landslide hazards [3]. A rapid sliding rock mass is likely to trigger waves or stir the atmosphere generating air blasts and facilitating its transport, both aggravating the hazards.