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Caractérisation par résonance paramagnétique électronique (RPE) de quartz naturels issus de différentes sources

hal.structure.identifierInstitut de Recherches sur les Archéomatériaux [IRAMAT]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierInstitut de Recherches sur les Archéomatériaux [IRAMAT]
dc.contributor.authorVILLENEUVE, Gérard
hal.structure.identifierInstitut de Recherches sur les Archéomatériaux [IRAMAT]
dc.contributor.authorBECHTEL, Françoise
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDEMAZEAU, Gérard
dc.date.issued2002
dc.description.abstractEnNatural quartz crystals coming from Madagascar, Angola, Brazil, and Spain were studied by EPR after β irradiation in order to characterise the paramagnetic centres due to impurities, and examine in which way their relative proportion could constitute a useful criterion for origin researches. In all our samples, EPR experiments revealed germanium centres [GeO4/M+]° with M = Li or Na, aluminium ones [AlO4/h]° and two titanium centres ([TiO4/H+]° and [TiO4/M+]°) also appeared, except for samples coming from Spain. The comparison of the relative concentrations of paramagnetic species led us on to draw diagrams that allowed distinguishing the origins of the studied samples using only EPR spectra.
dc.language.isoen
dc.publisherElsevier
dc.subjectEPR
dc.subjectNatural quartz
dc.subjectCharacterisation
dc.subjectParamagnetic defects
dc.titleCaractérisation par résonance paramagnétique électronique (RPE) de quartz naturels issus de différentes sources
dc.typeArticle de revue
dc.identifier.doi10.1016/S1631-0713(02)01845-X
dc.subject.halChimie/Matériaux
bordeaux.journalComptes Rendus Géoscience
bordeaux.page949-955
bordeaux.volume334
bordeaux.issue13
bordeaux.peerReviewedoui
hal.identifierhal-00817717
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00817717v1
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