Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG

Detalhes bibliográficos
Autor(a) principal: Ker, João Carlos
Data de Publicação: 2005
Outros Autores: Silva, Fernando Dias da, Couceiro, Paulo Rogério da Costa, Fabris, José Domingos, Goulart, Antonio Taranto
Tipo de documento: Artigo
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1590/S0100-40422005000100002
http://www.locus.ufv.br/handle/123456789/25192
Resumo: The Mössbauer analysis along with the structural Rietveld refinement based on powder X-ray data for the magnetic fraction (saturation magnetization, s = 19 J T-1 kg-1) separated from a tuffite material from Alto Paranaíba, state of Minas Gerais, Brazil, reveal that a (Ti, Mg)-rich maghemite (deduced s = 17 J T-1 kg-1) and, for the first time observed in this lithodomain, magnesioferrite (characteristic s = 21 J T-1 kg-1) respond for the magnetization of the rock material. Consistent models for the ionic distribution in these iron-rich spinel structures are proposed.
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spelling Ker, João CarlosSilva, Fernando Dias daCouceiro, Paulo Rogério da CostaFabris, José DomingosGoulart, Antonio Taranto2019-05-15T13:08:50Z2019-05-15T13:08:50Z2005-0116787064http://dx.doi.org/10.1590/S0100-40422005000100002http://www.locus.ufv.br/handle/123456789/25192The Mössbauer analysis along with the structural Rietveld refinement based on powder X-ray data for the magnetic fraction (saturation magnetization, s = 19 J T-1 kg-1) separated from a tuffite material from Alto Paranaíba, state of Minas Gerais, Brazil, reveal that a (Ti, Mg)-rich maghemite (deduced s = 17 J T-1 kg-1) and, for the first time observed in this lithodomain, magnesioferrite (characteristic s = 21 J T-1 kg-1) respond for the magnetization of the rock material. Consistent models for the ionic distribution in these iron-rich spinel structures are proposed.porQuímica Novav. 28, n. 01, p. 05- 09, jan./ fev. 2005MagnesioferriteRietveldMössbauerÓxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MGinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf810095https://locus.ufv.br//bitstream/123456789/25192/1/artigo.pdf6110f971bce32a6ad1bba6d78d139849MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/25192/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/251922019-05-15 10:09:23.4oai:locus.ufv.br:123456789/25192Tk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452019-05-15T13:09:23LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.pt-BR.fl_str_mv Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
title Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
spellingShingle Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
Ker, João Carlos
Magnesioferrite
Rietveld
Mössbauer
title_short Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
title_full Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
title_fullStr Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
title_full_unstemmed Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
title_sort Óxidos de ferro magnéticos de um tufito da região do Alto Paranaíba, MG
author Ker, João Carlos
author_facet Ker, João Carlos
Silva, Fernando Dias da
Couceiro, Paulo Rogério da Costa
Fabris, José Domingos
Goulart, Antonio Taranto
author_role author
author2 Silva, Fernando Dias da
Couceiro, Paulo Rogério da Costa
Fabris, José Domingos
Goulart, Antonio Taranto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ker, João Carlos
Silva, Fernando Dias da
Couceiro, Paulo Rogério da Costa
Fabris, José Domingos
Goulart, Antonio Taranto
dc.subject.pt-BR.fl_str_mv Magnesioferrite
Rietveld
Mössbauer
topic Magnesioferrite
Rietveld
Mössbauer
description The Mössbauer analysis along with the structural Rietveld refinement based on powder X-ray data for the magnetic fraction (saturation magnetization, s = 19 J T-1 kg-1) separated from a tuffite material from Alto Paranaíba, state of Minas Gerais, Brazil, reveal that a (Ti, Mg)-rich maghemite (deduced s = 17 J T-1 kg-1) and, for the first time observed in this lithodomain, magnesioferrite (characteristic s = 21 J T-1 kg-1) respond for the magnetization of the rock material. Consistent models for the ionic distribution in these iron-rich spinel structures are proposed.
publishDate 2005
dc.date.issued.fl_str_mv 2005-01
dc.date.accessioned.fl_str_mv 2019-05-15T13:08:50Z
dc.date.available.fl_str_mv 2019-05-15T13:08:50Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-40422005000100002
http://www.locus.ufv.br/handle/123456789/25192
dc.identifier.issn.none.fl_str_mv 16787064
identifier_str_mv 16787064
url http://dx.doi.org/10.1590/S0100-40422005000100002
http://www.locus.ufv.br/handle/123456789/25192
dc.language.iso.fl_str_mv por
language por
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 28, n. 01, p. 05- 09, jan./ fev. 2005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Química Nova
publisher.none.fl_str_mv Química Nova
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
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institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
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