Antonio Garralon, Paloma Gómez
The study aims to determine the hydrogeochemical evolution of uranium ore and identify the water/rock interaction processes controlling the dissolved uranium content in the Mina Fe uranium-ore deposit, the largest in Spain. Located in the Sageras area, this deposit was minimally affected by exploration activities from 20 years ago. This research focused on the area northeast of Ciudad Rodrigo, examining the mineralization associated with faults in a complex of schist and graywacke. Primary uranium minerals present include uraninite and coffinite, with secondary minerals resulting from weathering processes. Groundwater dynamics are influenced by regional topography, primarily recharging in surrounding mountains and discharging in local rivers. Analysis of 35 boreholes at depths of 50 to 150 m revealed calcium-bicarbonate type waters with a slightly reduced redox potential. Dissolved uranium levels were found to reach a maximum of 7.7 mg/L. The findings suggest that the mineral closest to equilibrium in this context is UO2(am), indicating a relationship between mineral equilibrium processes and the concentrations of dissolved uranium in this region.
@article{11dbb00c-f7ce-426b-b1f7-7bd7f9bd6dc5,
title={Chemical Equilibrium of the Dissolved Uranium in Groundwaters From a Spanish Uranium-ore Deposit},
author={Antonio Garralon and Paloma Gómez},
year={2002},
language={es}
}TY - JOUR TI - Chemical Equilibrium of the Dissolved Uranium in Groundwaters From a Spanish Uranium-ore Deposit AU - Antonio Garralon AU - Paloma Gómez PY - 2002 LA - es ER -
Alain Favre-Re´guillon, Gerard Lebuzit
Cross-flow membrane filtration equipment was operated to evaluate the selective uranium carbonate rejection from seawater of different flat sheet memb
Dolores Queiruga, Grit Walther
As a consequence of new European legal regulations for treatment of waste electrical and electronic equipment (WEEE), recycling plants have to be inst
Juan Manuel Alemany, Bruno Bignotti
Large institutional electricity consumers such as university campuses face a planning problem that cannot be reduced to photovoltaic sizing alone. The
A. Ryan, E. Johanson
The design of process plants for feasibility studies must address several key objectives, including feasibility and constructibility, while focusing o
Chiranjib Kumar Gupta
This book provides a comprehensive overview of the field of chemical metallurgy, addressing both common and less common metals. The objective of the v
Unknown, Unknown
This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu