L. Pe´rez del Villar, J. Bruno
In the frame of the ENRESA natural analogue programme, the uranium ore from the ‘Mina Fe’ (Salamanca, Spain) has been studied as a natural analogue of radioactive spent fuel behaviour. This uranium mine is hosted in highly fractured schistose rocks, a geological setting that has not been envisaged in the Spanish options for radioactive waste burial. However, some analogies with the processes that might be involved in the evolution of these geological repositories suggested this investigation. The pitchblende–pyrite–carbonate paragenesis has been studied ‘in situ’ as natural analogue of the nuclear spent fuel behaviour under extremely oxidative dissolution conditions. Similarly, secondary Fe oxyhydroxides and clay minerals have also been considered as relevant analogue materials for the retention of uranium and other analogous trace metals. A multidisciplinary characterisation of the site has been performed in order to study these processes. Though the intense mining activities in the site hindered precise determination of the original hydrogeological and hydrochemical features of the investigated zone (Boa fault zone), the mineralogy and geochemistry of fracture fillings, mineralisation and associated clayey materials have allowed the geochemical evolution of the system to be established.
@article{71fc9234-b85f-4ef9-a1a3-5c183aacb849,
title={The uranium ore from Mina Fe (Salamanca, Spain) as a natural analogue of processes in a spent fuel repository},
author={L. Pe´rez del Villar and J. Bruno},
year={2002},
language={es}
}TY - JOUR TI - The uranium ore from Mina Fe (Salamanca, Spain) as a natural analogue of processes in a spent fuel repository AU - L. Pe´rez del Villar AU - J. Bruno PY - 2002 LA - es ER -
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