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dc.contributor.authorMazoz, Ariela-
dc.contributor.authorGonçalves, Guilherme O.-
dc.contributor.authorLana, Cristiano-
dc.contributor.authorBuick, Ian S.-
dc.contributor.authorCorfu, Fernando-
dc.contributor.authorKamo, Sandra L.-
dc.contributor.authorWang, Hao-
dc.contributor.authorYang, Yue-Heng-
dc.contributor.authorScholz, Ricardo-
dc.contributor.authorQueiroga, Gláucia-
dc.contributor.authorFu, Bin-
dc.contributor.authorMartins, Lorena-
dc.contributor.authorSchannor, Mathias-
dc.contributor.authorAbreu, Adriana Trópia de-
dc.contributor.authorBabinski, Marly-
dc.contributor.authorPeixoto, Eliza-
dc.contributor.authorSantos, Roberto Ventura-
dc.date.accessioned2022-09-15T22:54:58Z-
dc.date.available2022-09-15T22:54:58Z-
dc.date.issued2022-06-13-
dc.identifier.citationMAZOZ, Ariela et al. Khan river and bear lake: two natural titanite reference materials for high-spatial resolution u-pb microanalysis. Geostandards and Geoanalytical Research, 2022. DOI 10.1111/ggr.12444. Disponível em: https://onlinelibrary.wiley.com/doi/full/10.1111/ggr.12444. Acesso em: 15 set. 2022.pt_BR
dc.identifier.urihttps://repositorio.unb.br/handle/10482/44837-
dc.language.isoInglêspt_BR
dc.publisherInternational Association of Geoanalystspt_BR
dc.rightsAcesso Restritopt_BR
dc.titleKhan river and bear lake : two natural titanite reference materials for high-spatial resolution u-pb microanalysispt_BR
dc.typeArtigopt_BR
dc.subject.keywordLA-ICP-MSpt_BR
dc.subject.keywordSm-Ndpt_BR
dc.subject.keywordTitanitapt_BR
dc.identifier.doihttps://doi.org/10.1111/ggr.12444pt_BR
dc.description.abstract1The Khan River (Namibia) and Bear Lake (Canada) titanites are investigated as potential reference materials (RM) for LA-ICP-MS applications. The Bear Lake titanite is texturally and compositionally homogeneous. The Khan River titanite is texturally heterogeneous and characterised by variable trace element compositions and total rare earth element contents. However, both titanites have consistent U-Pb and Nd-isotope ratios. U-Pb isotope dilution-thermal ionisation mass spectrometry analyses yielded Pbc-uncorrected intercept ages of 516.3 ± 1.3 Ma (2s, n = 5, MSWD = 2.4) and 1067.81 ± 0.74 Ma (2s, n = 4, MSWD = 0.35) for Khan River and Bear Lake titanites, respectively. Multiple U-Pb LA-SF/MC-ICP-MS analyses gave consistent Pbc-uncorrected intercept ages for both, Khan River (517 ± 1/5 Ma, 2s, n = 262, MSWD = 1.5) and Bear Lake (1070 ± 1/11 Ma, 2s, n = 325, MSWD = 0.88). U-Pb SHRIMP analyses on the same material returned identical (within uncertainty) ages. Khan River and Bear Lake gave internally consistent solution MC-ICP-MS 143Nd/144Nd ratios of 0.511587 ± 0.000027 (2s, n = 2) and 0.512321 ± 0.000004 (2s, n = 2), respectively. The 143Nd/144Nd ratios via solution-MC-ICP-MS and LA-ICP-MS all agree within uncertainty and suggest that both titanites can be used as RMs for Nd-isotope analyses.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2423-4149pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6347-0374pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6302-9706pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9370-4239pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-0021-7563pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2504-1111pt_BR
dc.contributor.emailmailto:arielamazoz.1818@gmail.compt_BR
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