Granite system groundwater

Grimaud, D., Beaucaire, C. Michard, G. 1990. Modelling of the groundwaters in a granite system at low temperature the Stripa groundwaters (Sweden). Applied Geochemistry, 5, 515-525. 

Initially, Oz diffuses through the bentonite and granitic domains, controlling the redox state of the system. Once 02 is exhausted, granitic groundwater controls the redox state of the system. The results of these calculations performed with the PHREEQC geochemical code (Parkhust Appelo 1999) clearly indicate that there is a substantial variability in pH/pe space along the temporal and spatial evolution of the near field of a repositoiy. This has clear consequences for the subsequent interactions with the Fe canister material and finally with the spent fuel matrix. 

Degueldre, C., Pfeiffer, H. R., Alexander, W., Wernli, B. Bruetsch, R. 1996a. Colloid properties in granitic groundwater systems. I. Sampling and characterization. Applied Geochemistry, 11, 677-695. 

Toulhoat, P., Beaucaire, C., Michard, G. OuzouNlAN, G. 1993. Chemical evolution of deep groundwaters in granites, information acquired from natural systems. In Paleohydro-geological Methods and their Applications. Nuclear Energy Agency/Organisation for Economic Cooperation and Development, Paris, 105-116. 

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