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dc.contributor.authorAvila, Janaina N
dc.contributor.authorIreland, Trevor R
dc.contributor.authorHolden, Peter
dc.contributor.authorLanc, Peter
dc.contributor.authorLatimore, Andrew
dc.contributor.authorSchram, Norm
dc.contributor.authorFoster, John
dc.contributor.authorWilliams, Ian S
dc.contributor.authorLoiselle, Liane
dc.contributor.authorFu, Bin
dc.date.accessioned2021-03-08T21:45:13Z
dc.date.available2021-03-08T21:45:13Z
dc.date.issued2019
dc.identifier.issn1639-4488
dc.identifier.doi10.1111/ggr.12298
dc.identifier.urihttp://hdl.handle.net/10072/402944
dc.description.abstractAnalytical protocols for SHRIMP‐SI oxygen isotope analysis (δ18O) of a suite of zircon reference materials (RMs) are presented. Data reduction involved a robust estimate of uncertainties associated with the individual spot as well as for groups where the spot data are combined. The repeatability of δ18O measurements is dependent on both the analytical conditions and the choice of the primary reference material. Under optimised conditions, repeatability was often better than 0.4‰ (2s) allowing sample uncertainties to be obtained to better than 0.2‰ (at 95% confidence limit). Single spot uncertainty combined the within‐spot precision with the scatter associated with repeated measurements of the primary zircon reference material during a measurement session. The uncertainty for individual spots measured under optimised conditions was between 0.3 and 0.4‰ (at 95% confidence). The analytical protocols described were used to assess a variety of zircon RMs that have been used for geochronology and for which laser fluorination oxygen isotope data are available (Temora 2, FC1, R33, QGNG and Plešovice), as well as zircons that have been used as RMs for trace element or other types of determination (Mud Tank, Monastery, 91500, AS57, AS3, KIM‐5, OG1, SL13, CZ3 and several other Sri Lankan zircons). Repeated analyses over nine sessions and seven different mounts show agreement within analytical uncertainty for Temora 2, FC1, R33, QGNG, Plešovice and 91500, when normalised to Mud Tank. For existing ion microprobe mounts with these materials, an appropriate δ18O can be determined. However, care should be taken when using zircons from the Duluth Complex (i.e., FC1, AS57 and AS3) as reference materials as our data indicated an excess scatter on δ18O values associated with low‐U zircon grains.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherWiley
dc.relation.ispartofpagefrom85
dc.relation.ispartofpageto102
dc.relation.ispartofissue1
dc.relation.ispartofjournalGeostandards and Geoanalytical Research
dc.relation.ispartofvolume44
dc.subject.fieldofresearchGeochemistry
dc.subject.fieldofresearchGeology
dc.subject.fieldofresearchcode3703
dc.subject.fieldofresearchcode3705
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsGeochemistry & Geophysics
dc.subject.keywordsSHRIMP
dc.subject.keywordssecondary ion mass spectrometer
dc.titleHigh-Precision, High-Accuracy Oxygen Isotope Measurements of Zircon Reference Materials with the SHRIMP-SI
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationAvila, JN; Ireland, TR; Holden, P; Lanc, P; Latimore, A; Schram, N; Foster, J; Williams, IS; Loiselle, L; Fu, B, High-Precision, High-Accuracy Oxygen Isotope Measurements of Zircon Reference Materials with the SHRIMP-SI, Geostandards and Geoanalytical Research, 2019, 44 (1), pp. 85-102
dc.date.updated2021-03-08T03:54:42Z
gro.hasfulltextNo Full Text
gro.griffith.authorNunes Avila, Janaina


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