Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake
- Autores
- Cid, A. S.; Anjos, R. M.; Zamboni, C. B.; Cardoso, R.; Muniz, M.; Corona, A.; Valladares, Diego Leonardo; Kovacs, L.; Macario, K.; Perea, D.; Goso, C.; Velasco, Ricardo Hugo
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion–adsorption (RDA) model is described. Unlike the classic diffusion–adsorption (D–A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10−12 cm2s−1. Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved.
Fil: Cid, A. S.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil
Fil: Anjos, R. M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil
Fil: Zamboni, C. B.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; Brasil
Fil: Cardoso, R.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil
Fil: Muniz, M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil
Fil: Corona, A.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay
Fil: Valladares, Diego Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina
Fil: Kovacs, L.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; Brasil
Fil: Macario, K. . Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil
Fil: Perea, D.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay
Fil: Goso, C.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay
Fil: Velasco, Ricardo Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina - Materia
-
Rda
U-Uptake
Macrauchenia-Patachonica - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/5799
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Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptakeCid, A. S.Anjos, R. M.Zamboni, C. B.Cardoso, R.Muniz, M.Corona, A.Valladares, Diego LeonardoKovacs, L.Macario, K. Perea, D.Goso, C.Velasco, Ricardo HugoRdaU-UptakeMacrauchenia-Patachonicahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion–adsorption (RDA) model is described. Unlike the classic diffusion–adsorption (D–A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10−12 cm2s−1. Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved.Fil: Cid, A. S.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; BrasilFil: Anjos, R. M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; BrasilFil: Zamboni, C. B.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; BrasilFil: Cardoso, R.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; BrasilFil: Muniz, M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; BrasilFil: Corona, A.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; UruguayFil: Valladares, Diego Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; ArgentinaFil: Kovacs, L.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; BrasilFil: Macario, K. . Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; BrasilFil: Perea, D.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; UruguayFil: Goso, C.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; UruguayFil: Velasco, Ricardo Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; ArgentinaElsevier2014-06-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5799Cid, A. S.; Anjos, R. M.; Zamboni, C. B.; Cardoso, R.; Muniz, M.; et al.; Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake; Elsevier; Journal of Environmental Radioactivity; 136; 20-6-2014; 131-1390265-931Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0265931X14001581info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jenvrad.2014.05.018info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:42Zoai:ri.conicet.gov.ar:11336/5799instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:10:42.469CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
title |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
spellingShingle |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake Cid, A. S. Rda U-Uptake Macrauchenia-Patachonica |
title_short |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
title_full |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
title_fullStr |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
title_full_unstemmed |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
title_sort |
Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake |
dc.creator.none.fl_str_mv |
Cid, A. S. Anjos, R. M. Zamboni, C. B. Cardoso, R. Muniz, M. Corona, A. Valladares, Diego Leonardo Kovacs, L. Macario, K. Perea, D. Goso, C. Velasco, Ricardo Hugo |
author |
Cid, A. S. |
author_facet |
Cid, A. S. Anjos, R. M. Zamboni, C. B. Cardoso, R. Muniz, M. Corona, A. Valladares, Diego Leonardo Kovacs, L. Macario, K. Perea, D. Goso, C. Velasco, Ricardo Hugo |
author_role |
author |
author2 |
Anjos, R. M. Zamboni, C. B. Cardoso, R. Muniz, M. Corona, A. Valladares, Diego Leonardo Kovacs, L. Macario, K. Perea, D. Goso, C. Velasco, Ricardo Hugo |
author2_role |
author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
Rda U-Uptake Macrauchenia-Patachonica |
topic |
Rda U-Uptake Macrauchenia-Patachonica |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion–adsorption (RDA) model is described. Unlike the classic diffusion–adsorption (D–A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10−12 cm2s−1. Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved. Fil: Cid, A. S.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil Fil: Anjos, R. M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil Fil: Zamboni, C. B.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; Brasil Fil: Cardoso, R.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil Fil: Muniz, M.. Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil Fil: Corona, A.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay Fil: Valladares, Diego Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina Fil: Kovacs, L.. Centro do Reator de Pesquisa. Instituto de Pesquisas Energ eticas e Nucleares; Brasil Fil: Macario, K. . Universidade Federal Fluminense. Instituto de Física. Laboratorio de Radioecologia e Alteraçoes Ambientais; Brasil Fil: Perea, D.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay Fil: Goso, C.. Universidad de la Republica. Facultad de Química y Facultad de Ciencias; Uruguay Fil: Velasco, Ricardo Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina |
description |
Fossil bones are often the only materials available for chronological reconstruction of important archeological sites. However, since bone is an open system for uranium, it cannot be dated directly and therefore it is necessary to develop models for the U uptake. Hence, a radial diffusion–adsorption (RDA) model is described. Unlike the classic diffusion–adsorption (D–A) model, RDA uses a cylindrical geometry to describe the U uptake in fossil bones. The model was applied across a transverse section of a tibia of an extinct megamammal Macrauchenia patachonica from the La Paz Local Fauna, Montevideo State, Uruguay. Measurements of spatial distribution of Na, K, Ca, and Mg were also performed by neutron activation analysis (NAA). Gamma-ray spectrometric U-series dating was applied to determine the age of the bone sample. From U concentration profile, it was possible to observe the occurrence of a relatively slow and continuous uranium uptake under constant conditions that had not yet reached equilibrium, since the uranium distribution is a ∪-shaped closed-system. Predictions of the RDA model were obtained for a specific geochemical scenario, indicating that the effective diffusion coefficient D/R in this fossil bone is (2.4 ± 0.6)10−12 cm2s−1. Mean values of Na, K, Ca, and Mg contents along the radial line of the fossil tibia are consistent with the expected behavior for spatial distributions of these mineral elements across a modern bone section. This result indicates that the fossil tibia may have its mineral structure preserved. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-20 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/5799 Cid, A. S.; Anjos, R. M.; Zamboni, C. B.; Cardoso, R.; Muniz, M.; et al.; Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake; Elsevier; Journal of Environmental Radioactivity; 136; 20-6-2014; 131-139 0265-931X |
url |
http://hdl.handle.net/11336/5799 |
identifier_str_mv |
Cid, A. S.; Anjos, R. M.; Zamboni, C. B.; Cardoso, R.; Muniz, M.; et al.; Na, K, Ca, Mg, and U-series in fossil bone and the proposal of a radial diffusion?adsorption model of uranium uptake; Elsevier; Journal of Environmental Radioactivity; 136; 20-6-2014; 131-139 0265-931X |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0265931X14001581 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jenvrad.2014.05.018 info:eu-repo/semantics/altIdentifier/doi/ |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613998712979456 |
score |
13.070432 |