Modelling the porewater chemistry of the Callovian–Oxfordian formation at a regional scale
作者： Éric C. Gaucher , Philippe Blanc , Frédérique Bardot , Gilles Braibant , Stéphane Buschaert
DOI: 10.1016/J.CRTE.2006.06.002
关键词:
摘要: In ANDRA's studies to characterize the Callovian–Oxfordian formation, porewater chemistry is a key topic. Indeed, determines durability of repository materials (bentonite, concrete, metals, nuclear glass) and speciation (and thus mobility) radionuclides. The method developed in frame THERMOAR project enables acquisition complete set data from core samples model chemistry. requires detailed mineralogical study, free-water/bound-water distribution, leaching experiments, adsorbed ion measurements, ion-exchange constant acquisition, CO2 partial-pressure measurements. These experiments measurements were done on site Meuse/Haute-Marne laboratory regional boreholes. stability great number parameters can be observed, except for decrease Na Cl concentration following NE–SW axis passing through laboratory. water/rock equilibrium makes it possible calculate chemical composition interstitial waters formation. To cite this article: E.C. Gaucher et al., C. R. Geoscience 338 (2006).
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