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Author Rodrigues, Paulo César Horta ♦ Vecchia, Adriana Mônica Dalla ♦ Ladeira, Ana Claudia Queiroz ♦ Rios, Francisco Javier
Source Directory of Open Access Journals (DOAJ)
Content type Text
Publisher Sociedade Brasileira de Geologia
File Format HTM / HTML
Date Created 2017-11-13
Language English ♦ Spanish ♦ French ♦ Portuguese
Subject Domain (in LCC) QE1-996.5
Subject Keyword Geogênico ♦ Pb radiogênico ♦ Antropogênico ♦ Science ♦ Monitoramento ambiental ♦ Geology ♦ Isótopos estáveis de Pb
Abstract ABSTRACT: This work presents the investigation in an environment that contains uranium deposits by using Pb isotope signatures. The study area, southeast of Brazil, is characterized by the lack of surface water and, as a consequence, the groundwater plays an important role in the economy of the region, such as the supply to the uranium industry and, above all serving the needs of the local population. The objective of the present investigation is the determination of the signatures of Pb in groundwater and sediments as well as the identification of environments under influences of geogenic and/or anthropogenic sources. It was determined that the Pb in the majority of sediments was geogenic in origin. Although data from the literature, related to the environmental studies, consider 206Pb/207Pb isotopic ratio values below or close to 1.2 as an indicative of anthropogenic Pb, the 206Pb/ 207Pb determined for the majority of groundwater samples ranged from 1.14 to 1.19, and are similar to the data reported for rocks samples (1.09 to 1.96) from area with U mineralization. It was also determined that the anthropogenic influence of the uranium was restricted to a single sampling point within the mining area.
ISSN 23174692
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
e-ISSN 23174889
Journal Brazilian Journal of Geology
Volume Number 47
Issue Number 1
Page Count 12
Starting Page 147
Ending Page 158

Source: Directory of Open Access Journals (DOAJ)