Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Physics |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331998000400018 |
Resumo: | Soil samples from the King George Island, Antarctica, have been studied by 57Fe Mossbauer spectroscopy, X-ray diffractometry, radiometry, neutron activation analysis and chemical analytical methods. X-ray diffractometry measurements have identified soils containing different volume ratios of quartz, feldspar, chlorite as well as hematite. The difference in the phase composition and in the iron distribution among the crystallographic sites of iron-bearing minerals (chlorite, magnetite and hematite) of samples from two different depths was derived from the complex Mössbauer spectra. The differences in the mineral composition, iron distribution, concentration of water soluble salts, pH and radioactivity of certain radionucliedes indicate the occurence of chemical weathering of minerals. |
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Brazilian Journal of Physics |
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Maritime Antarctica soils studied by Mössbauer spectroscopy and other methodsSoil samples from the King George Island, Antarctica, have been studied by 57Fe Mossbauer spectroscopy, X-ray diffractometry, radiometry, neutron activation analysis and chemical analytical methods. X-ray diffractometry measurements have identified soils containing different volume ratios of quartz, feldspar, chlorite as well as hematite. The difference in the phase composition and in the iron distribution among the crystallographic sites of iron-bearing minerals (chlorite, magnetite and hematite) of samples from two different depths was derived from the complex Mössbauer spectra. The differences in the mineral composition, iron distribution, concentration of water soluble salts, pH and radioactivity of certain radionucliedes indicate the occurence of chemical weathering of minerals.Sociedade Brasileira de Física1998-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331998000400018Brazilian Journal of Physics v.28 n.4 1998reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97331998000400018info:eu-repo/semantics/openAccessKuzmann,E.Schuch,L. A.Garg,V. K.Souza Junior,P. A. deGuimarães,E. M.Oliveira,A. C. deVértes,A.eng1999-08-26T00:00:00Zoai:scielo:S0103-97331998000400018Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:1999-08-26T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false |
dc.title.none.fl_str_mv |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
title |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
spellingShingle |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods Kuzmann,E. |
title_short |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
title_full |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
title_fullStr |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
title_full_unstemmed |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
title_sort |
Maritime Antarctica soils studied by Mössbauer spectroscopy and other methods |
author |
Kuzmann,E. |
author_facet |
Kuzmann,E. Schuch,L. A. Garg,V. K. Souza Junior,P. A. de Guimarães,E. M. Oliveira,A. C. de Vértes,A. |
author_role |
author |
author2 |
Schuch,L. A. Garg,V. K. Souza Junior,P. A. de Guimarães,E. M. Oliveira,A. C. de Vértes,A. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Kuzmann,E. Schuch,L. A. Garg,V. K. Souza Junior,P. A. de Guimarães,E. M. Oliveira,A. C. de Vértes,A. |
description |
Soil samples from the King George Island, Antarctica, have been studied by 57Fe Mossbauer spectroscopy, X-ray diffractometry, radiometry, neutron activation analysis and chemical analytical methods. X-ray diffractometry measurements have identified soils containing different volume ratios of quartz, feldspar, chlorite as well as hematite. The difference in the phase composition and in the iron distribution among the crystallographic sites of iron-bearing minerals (chlorite, magnetite and hematite) of samples from two different depths was derived from the complex Mössbauer spectra. The differences in the mineral composition, iron distribution, concentration of water soluble salts, pH and radioactivity of certain radionucliedes indicate the occurence of chemical weathering of minerals. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331998000400018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331998000400018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-97331998000400018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
dc.source.none.fl_str_mv |
Brazilian Journal of Physics v.28 n.4 1998 reponame:Brazilian Journal of Physics instname:Sociedade Brasileira de Física (SBF) instacron:SBF |
instname_str |
Sociedade Brasileira de Física (SBF) |
instacron_str |
SBF |
institution |
SBF |
reponame_str |
Brazilian Journal of Physics |
collection |
Brazilian Journal of Physics |
repository.name.fl_str_mv |
Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF) |
repository.mail.fl_str_mv |
sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br |
_version_ |
1754734858473570304 |