Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal

Detalhes bibliográficos
Autor(a) principal: Iyer, Sundaram Sankara Subba
Data de Publicação: 1999
Outros Autores: Babinski, M., Marinho, M. M., Barbosa, J .S. F., Sato, I. M., Salvador, V. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7658
Resumo: Texto completo: acesso restrito, p.197–221
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spelling Iyer, Sundaram Sankara SubbaBabinski, M.Marinho, M. M.Barbosa, J .S. F.Sato, I. M.Salvador, V. L.Iyer, Sundaram Sankara SubbaBabinski, M.Marinho, M. M.Barbosa, J .S. F.Sato, I. M.Salvador, V. L.2012-12-18T20:19:44Z1999-030883-2927http://www.repositorio.ufba.br/ri/handle/ri/7658v. 14, n. 2Texto completo: acesso restrito, p.197–221Lead–lead isotope data from whole rock samples are used to investigate the recent (last few million years) mobility of U and Th. The method is based on the comparison of the calculated present day U and Th concentrations required to yield the Pb isotope composition in the samples with the actual present day concentrations of U and Th obtained by direct measurement. The geological formations studied include the Neoproterozoic carbonate sediments of the Bambuı́ Group, Archean/Paleoproterozoic granite–greenstone terrain of the Contendas–Mirante Complex and a Proterozoic ortho-gneisses hosting U deposit in Lagoa Real. All these formations are in the São Francisco Craton, Brazil. The data show high U mobility in the carbonate sediments and in the deformed ortho-gneisses set in a ductile shear zone. Infiltration of groundwater through fault zones seems to have facilitated the U mobility. The Pb isotope approach is a useful technique complementing U-series disequilibrium studies and may be included for site characterization studies for radioactive waste disposal.Submitted by Texeira Ana (atanateixeira@gmail.com) on 2012-12-18T20:19:44Z No. of bitstreams: 1 Marinho.pdf: 624001 bytes, checksum: 15581e8de0c69259e7c099cfae83db8f (MD5)Made available in DSpace on 2012-12-18T20:19:44Z (GMT). No. of bitstreams: 1 Marinho.pdf: 624001 bytes, checksum: 15581e8de0c69259e7c099cfae83db8f (MD5) Previous issue date: 1999-03http://dx.doi.org/10.1016/S0883-2927(98)00040-7reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBALead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposalApplied Geochemistryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALMarinho.pdfMarinho.pdfapplication/pdf624001https://repositorio.ufba.br/bitstream/ri/7658/1/Marinho.pdf15581e8de0c69259e7c099cfae83db8fMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7658/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTMarinho.pdf.txtMarinho.pdf.txtExtracted texttext/plain68087https://repositorio.ufba.br/bitstream/ri/7658/3/Marinho.pdf.txt753ec6f43dc752b876f0698536a13069MD53ri/76582022-07-05 14:03:34.458oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:34Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
dc.title.alternative.pt_BR.fl_str_mv Applied Geochemistry
title Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
spellingShingle Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
Iyer, Sundaram Sankara Subba
title_short Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
title_full Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
title_fullStr Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
title_full_unstemmed Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
title_sort Lead isotope evidence for recent uranium mobility in geological formations of Brazil: implications for radioactive waste disposal
author Iyer, Sundaram Sankara Subba
author_facet Iyer, Sundaram Sankara Subba
Babinski, M.
Marinho, M. M.
Barbosa, J .S. F.
Sato, I. M.
Salvador, V. L.
author_role author
author2 Babinski, M.
Marinho, M. M.
Barbosa, J .S. F.
Sato, I. M.
Salvador, V. L.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Iyer, Sundaram Sankara Subba
Babinski, M.
Marinho, M. M.
Barbosa, J .S. F.
Sato, I. M.
Salvador, V. L.
Iyer, Sundaram Sankara Subba
Babinski, M.
Marinho, M. M.
Barbosa, J .S. F.
Sato, I. M.
Salvador, V. L.
description Texto completo: acesso restrito, p.197–221
publishDate 1999
dc.date.issued.fl_str_mv 1999-03
dc.date.accessioned.fl_str_mv 2012-12-18T20:19:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7658
dc.identifier.issn.none.fl_str_mv 0883-2927
dc.identifier.number.pt_BR.fl_str_mv v. 14, n. 2
identifier_str_mv 0883-2927
v. 14, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/7658
dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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