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The behavior of dissolved uranium in groundwaters of the Morro do Ferro thorium deposit, Brazil
(1989-05-30)
Groundwater samples were collected for several months in boreholes drilled at Morro do Ferro, a thorium and rare earth deposit located on the Poços de Caldas Plateau, Minas Gerais State, Brazil. An aquifer system has ...
The behavior of dissolved uranium in groundwaters of the Morro do Ferro thorium deposit, Brazil
(1989-05-30)
Groundwater samples were collected for several months in boreholes drilled at Morro do Ferro, a thorium and rare earth deposit located on the Poços de Caldas Plateau, Minas Gerais State, Brazil. An aquifer system has ...
Uranium isotopes as radioactive pollutants in groundwaters of the Morro do Ferro thorium deposit, Brazil
(1991-01-01)
Groundwater and surface water samples were collected at Morro do Ferro, a thorium and rare earth deposit located on the Pocos de Caldas Plateau, Minas Gerais State, Brazil, to evaluate if the mechanisms related to the ...
Natural radionuclides in lichens, mosses and ferns in a thermal power plant and in an adjacent coal mine area in southern Brazil
(2017-02-01)
The radio-elements 234U, 235U, 238U, 230Th, 232Th and 210Po were characterized in lichens, mosses and ferns species sampled in an adjacent coal mine area at Figueira City, Paraná State, Brazil, due to their importance for ...
Some features of the Th presence in the Poços de Caldas alkaline massif, Minas Gerais State, Brazil
(2014-07-01)
Alkaline rocks are found in southern Brazil in association with the Ordovician-Cretaceous sedimentary Paraná basin and mainly distributed along its margins. They vary considerably in age and composition, and have been ...
A mineral potential mapping approach for supergene nickel deposits in southwestern São Francisco Craton, Brazil
(2016-06-01)
Southwestern São Francisco Craton makes limit with Brasília thrust-fold belt and involves rocks from Archean to formed during the Brasiliano-Pan Africano Neoproterozoic event, including a mafic-ultramafic belt (Morro do ...
Apprehension of thorianite in Brazil
(Instituto de Pesquisas Energ??ticas e Nucleares, 2018)