Geophysical Diagnosis of Diversion Channel Infiltration in a Uranium Waste Rock Pile

The Osamu Utsumi mine was the first to economically mine uranium ore in Brazil. During its operation, a river valley was buried for the construction of the waste rock pile. The original stream was diverted to the northwest side of the pile and has since flowed into a diversion channel devoid of basa...

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Bibliographic Details
Published in:Mine water and the environment 2022-09, Vol.41 (3), p.704-720
Main Authors: do Nascimento, Matheus Mistrinel Pacine Feitoza, Moreira, César Augusto, Duz, Beatriz Guzzo, da Silveira, Ana Júlia Traíba
Format: Article
Language:English
Subjects:
Acid mine drainage
Chemical elements
Diversion channels
Earth and Environmental Science
Earth Sciences
Ecotoxicology
Electrical resistivity
Environmental impact
Geology
Hydrogeochemistry
Hydrogeology
Induced polarization
Industrial Pollution Prevention
Infiltration
Lithology
Mine drainage
Mineral Resources
Mineralization
Minerals
Mining
Piles
Polarization
River valleys
Rock
Rocks
Sulfuric acid
Sulphides
Technical Article
Tomography
Two dimensional models
Uranium
Uranium ores
Water infiltration
Water pollution
Water Quality/Water Pollution
Waterproofing
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Summary:The Osamu Utsumi mine was the first to economically mine uranium ore in Brazil. During its operation, a river valley was buried for the construction of the waste rock pile. The original stream was diverted to the northwest side of the pile and has since flowed into a diversion channel devoid of basal waterproofing, while an acid mine drainage (AMD) source flows at the base of this waste rock pile. This research aims to evaluate the possible relationship between water infiltration of the diversion channel and the AMD resurgence at the base of the pile using electrical resistivity tomography and induced polarization. 2D inversion models and pseudo-3D maps allowed the recognition of low resistivity zones (
ISSN:1025-9112
1616-1068
DOI:10.1007/s10230-022-00878-3