Articles | Volume 25, issue 11
Hydrol. Earth Syst. Sci., 25, 5905–5915, 2021
Hydrol. Earth Syst. Sci., 25, 5905–5915, 2021

Research article 11 Nov 2021

Research article | 11 Nov 2021

Feedback mechanisms between precipitation and dissolution reactions across randomly heterogeneous conductivity fields

Yaniv Edery et al.

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Cited articles

Ababou, R., McLaughlin, D., Gelhar, L. W., and Tompson, A. F. B.: Numerical simulation of three-dimensional saturated flow in randomly heterogeneous porous media, Transport Porous Med., 4, 549–565,, 1989. 
Aquino, T. and Bolster, D.: Localized point mixing rate potential in heterogeneous velocity fields, Transport Porous Med., 119, 391–402,, 2017. 
Atchley, A. L., Navarre-Sitchler, A. K., and Maxwell, R. M.: The effects of physical and geochemical heterogeneities on hydro-geochemical transport and effective reaction rates, J. Contam. Hydrol., 165, 53–64,, 2014. 
Berkowitz, B., Cortis, A., Dentz, M., and Scher, H.: Modeling non-Fickian transport in geological formations as a continuous time random walk, Rev. Geophys., 44, RG2003,, 2006. 
Berkowitz, B., Dror, I., Hansen, S. K., and Scher, H.: Measurements and models of reactive transport in geological media, Rev. Geophys., 54, 930–986,, 2016. 
Short summary
The interplay between dissolution, precipitation and transport is widely encountered in porous media, from CO2 storage to cave formation in carbonate rocks. We show that dissolution occurs along preferential flow paths with high hydraulic conductivity, while precipitation occurs at locations close to yet separated from these flow paths, thus further funneling the flow and changing the probability density function of the transport, as measured on the altered conductivity field at various times.