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

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 sho...

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Detalles Bibliográficos
Autores principales: De Paula Filho, Francisco José, Marins, Rozane Valente, Nunes, João Victor Serra, Moura, João Victor Barbosa, Santos, Deivid Vitor, Menezes, Jorge Marcell
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2019
Materias:
Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77503
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-77503
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
spellingShingle Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
De Paula Filho, Francisco José
Marins, Rozane Valente
Nunes, João Victor Serra
Moura, João Victor Barbosa
Santos, Deivid Vitor
Menezes, Jorge Marcell
Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
topic_facet Geología
geochemistry
heavy metals
estuarine sediments
scanning electron microscopy
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.
format Objeto de conferencia
Objeto de conferencia
author De Paula Filho, Francisco José
Marins, Rozane Valente
Nunes, João Victor Serra
Moura, João Victor Barbosa
Santos, Deivid Vitor
Menezes, Jorge Marcell
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_sort De Paula Filho, Francisco José
title Análisis espectroscópico de sedimentos de estuario tropical en el nordeste de Brasil
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
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/77503
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