Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil

Autores
De Paula Filho, Francisco José; Marins, Rozane Valente; Nunes, João Victor Serra; Moura, João Victor Barbosa; Santos, Deivid Vitor; Menezes, Jorge Marcell
Año de publicación
2019
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The purpose of this work is to characterize the geochemical composition of sediments of the Parnaíba River delta, in terms of trace metal concentrations, using spectroscopic techniques. A profile sampling campaign was carried out in April 2017. The granulometric analysis of the surface sediments showed that the silt + clay fraction added up to 14.31% of the total. The mean concentrations of heavy metals in the profiles were 1.78 mg.kg-1 for Cd; 10.57 mg.kg-1 for Cr; 11.85 mg.kg-1 for Cu; 24.42 mg.kg-1 for Ni; 47.90 mg.kg-1 for Zn; 152.45 mg.kg-1 for Pb; 1887.28 mg.kg-1 for Mn; 1.12% for Al and 3.49% for Fe. Scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) applied to the sediments from the coast of Ceará showed the morphological diversity of sediment grains. The infrared spectra presented similar functional groups at all tested points, demonstrating that the clay minerals in the different samples probably have the same origin.
Centro de Investigaciones Geológicas
Materia
Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/77503
Acceder
id SEDICI_7beef946c77ce9616f7fa12926a6bd23
oai_identifier_str oai:sedici.unlp.edu.ar:10915/77503
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de BrasilSpectroscopic analysis of sediments from a tropical estuary in the Brazilian NortheastDe Paula Filho, Francisco JoséMarins, Rozane ValenteNunes, João Victor SerraMoura, João Victor BarbosaSantos, Deivid VitorMenezes, Jorge MarcellGeologíageochemistryheavy metalsestuarine sedimentsscanning electron microscopyThe purpose of this work is to characterize the geochemical composition of sediments of the Parnaíba River delta, in terms of trace metal concentrations, using spectroscopic techniques. A profile sampling campaign was carried out in April 2017. The granulometric analysis of the surface sediments showed that the silt + clay fraction added up to 14.31% of the total. The mean concentrations of heavy metals in the profiles were 1.78 mg.kg<SUP>-1</SUP> for Cd; 10.57 mg.kg<SUP>-1</SUP> for Cr; 11.85 mg.kg<SUP>-1</SUP> for Cu; 24.42 mg.kg<SUP>-1</SUP> for Ni; 47.90 mg.kg<SUP>-1</SUP> for Zn; 152.45 mg.kg<SUP>-1</SUP> for Pb; 1887.28 mg.kg<SUP>-1</SUP> for Mn; 1.12% for Al and 3.49% for Fe. Scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) applied to the sediments from the coast of Ceará showed the morphological diversity of sediment grains. The infrared spectra presented similar functional groups at all tested points, demonstrating that the clay minerals in the different samples probably have the same origin.Centro de Investigaciones Geológicas2019-06info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf154-157http://sedici.unlp.edu.ar/handle/10915/77503enginfo:eu-repo/semantics/altIdentifier/isbn/978-987-96296-7-3info:eu-repo/semantics/reference/hdl/10915/77067info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:13:53Zoai:sedici.unlp.edu.ar:10915/77503Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:13:53.292SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
Spectroscopic analysis of sediments from a tropical estuary in the Brazilian Northeast
title Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
spellingShingle Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
De Paula Filho, Francisco José
Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
title_short Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
title_full Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
title_fullStr Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
title_full_unstemmed Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
title_sort Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
dc.creator.none.fl_str_mv De Paula Filho, Francisco José
Marins, Rozane Valente
Nunes, João Victor Serra
Moura, João Victor Barbosa
Santos, Deivid Vitor
Menezes, Jorge Marcell
author De Paula Filho, Francisco José
author_facet De Paula Filho, Francisco José
Marins, Rozane Valente
Nunes, João Victor Serra
Moura, João Victor Barbosa
Santos, Deivid Vitor
Menezes, Jorge Marcell
author_role author
author2 Marins, Rozane Valente
Nunes, João Victor Serra
Moura, João Victor Barbosa
Santos, Deivid Vitor
Menezes, Jorge Marcell
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
topic Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
dc.description.none.fl_txt_mv The purpose of this work is to characterize the geochemical composition of sediments of the Parnaíba River delta, in terms of trace metal concentrations, using spectroscopic techniques. A profile sampling campaign was carried out in April 2017. The granulometric analysis of the surface sediments showed that the silt + clay fraction added up to 14.31% of the total. The mean concentrations of heavy metals in the profiles were 1.78 mg.kg<SUP>-1</SUP> for Cd; 10.57 mg.kg<SUP>-1</SUP> for Cr; 11.85 mg.kg<SUP>-1</SUP> for Cu; 24.42 mg.kg<SUP>-1</SUP> for Ni; 47.90 mg.kg<SUP>-1</SUP> for Zn; 152.45 mg.kg<SUP>-1</SUP> for Pb; 1887.28 mg.kg<SUP>-1</SUP> for Mn; 1.12% for Al and 3.49% for Fe. Scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) applied to the sediments from the coast of Ceará showed the morphological diversity of sediment grains. The infrared spectra presented similar functional groups at all tested points, demonstrating that the clay minerals in the different samples probably have the same origin.
Centro de Investigaciones Geológicas
description The purpose of this work is to characterize the geochemical composition of sediments of the Parnaíba River delta, in terms of trace metal concentrations, using spectroscopic techniques. A profile sampling campaign was carried out in April 2017. The granulometric analysis of the surface sediments showed that the silt + clay fraction added up to 14.31% of the total. The mean concentrations of heavy metals in the profiles were 1.78 mg.kg<SUP>-1</SUP> for Cd; 10.57 mg.kg<SUP>-1</SUP> for Cr; 11.85 mg.kg<SUP>-1</SUP> for Cu; 24.42 mg.kg<SUP>-1</SUP> for Ni; 47.90 mg.kg<SUP>-1</SUP> for Zn; 152.45 mg.kg<SUP>-1</SUP> for Pb; 1887.28 mg.kg<SUP>-1</SUP> for Mn; 1.12% for Al and 3.49% for Fe. Scanning electron microscopy/energy dispersive spectrometry (SEM/EDS) applied to the sediments from the coast of Ceará showed the morphological diversity of sediment grains. The infrared spectra presented similar functional groups at all tested points, demonstrating that the clay minerals in the different samples probably have the same origin.
publishDate 2019
dc.date.none.fl_str_mv 2019-06
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Objeto de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/77503
url http://sedici.unlp.edu.ar/handle/10915/77503
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/978-987-96296-7-3
info:eu-repo/semantics/reference/hdl/10915/77067
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
154-157
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
_version_ 1844616009561931776
score 13.070432

Publicaciones similares