Jordi Bruno, Lara Duro
The measurement and understanding of the processes that control the redox intensities (Eh) and capacities (RDC) of uranium deposits are critical to assess the long-term stability of nuclear waste repositories, the migration of toxic metals from uranium mine tailings, and other contaminated sites. We present the redox modelling work performed in connection with the geochemical characterisation of five uranium deposits used as Natural Analogue systems: Po~os de Caldas (Brazil), Cigar Lake (Canada), EI Berrocal (Spain), Oklo (Gabon), and Palmottu (Finland). The data from these five sites indicate that Fe(III)/Fe(II) equilibrium controls the redox state of surface and intermediate groundwaters. However, the redox state of undisturbed groundwaters in contact with U mineralisations appears to be controlled by U(IV)/U(IV) equilibria in the solid phase.
@article{b1ae8aef-f74c-49ff-bf1a-25dea022b0f2,
title={Redox processes in uranium deposits - Lessons from Natural Analogue Studies},
author={Jordi Bruno and Lara Duro},
year={2002},
language={es}
}TY - JOUR TI - Redox processes in uranium deposits - Lessons from Natural Analogue Studies AU - Jordi Bruno AU - Lara Duro PY - 2002 LA - es ER -
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