Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography

Mineral exploration is often associated with the generation of environmental liabilities, whose potential damages might imperil local water quality. An example of these environmental impacts is the acid mine drainage—AMD, caused by sulfides oxidation and production of acid and saline effluents. The...

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Bibliographic Details
Published in:Pure and applied geophysics 2020-02, Vol.177 (2), p.703-721
Main Authors: Casagrande, Matheus Felipe Stanfoca, Moreira, César Augusto, Targa, Débora Andrade
Format: Article
Language:English
Subjects:
Acid mine drainage
Anomalies
Aquifers
Atmospheric models
Bedrock
Coastal inlets
Contamination
Drainage
Earth and Environmental Science
Earth Sciences
Effluents
Electrical resistivity
Environmental cleanup
Environmental impact
Environmental liability
Environmental management
Geophysical exploration
Geophysical methods
Geophysics
Geophysics/Geodesy
Groundwater
Groundwater flow
Impact damage
Infiltration
Liabilities
Meteoric water
Mine drainage
Mine wastes
Mineral exploration
Minerals
Oxidation
Piles
Plumes
Rocks
Sulfides
Sulphides
Tomography
Underground mines
Uranium
Water damage
Water flow
Water infiltration
Water pollution
Water quality
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Summary:Mineral exploration is often associated with the generation of environmental liabilities, whose potential damages might imperil local water quality. An example of these environmental impacts is the acid mine drainage—AMD, caused by sulfides oxidation and production of acid and saline effluents. The analysis of critical areas with generation and spread of contamination plumes becomes more feasible due to the possibility to obtain geophysical models of water systems, especially to identify regions with accumulation of reactive minerals and preferential water flows. The rock-waste pile named BF-04 fits in this context of contamination, and it was studied based on the Electrical Resistivity Tomography technique, inversion models and isosurface models, providing conditions to recognize sulfide zones (> 10.1 mV/V), whereas chaotic high salt content underground flows, along several depths, were identified by low resistivity zones (
ISSN:0033-4553
1420-9136
DOI:10.1007/s00024-019-02351-9