Chemistry and radiation effects of davidite

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dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorBlackford, MGen_AU
dc.contributor.authorColella, Men_AU
dc.date.accessioned2015-10-14T00:43:27Zen_AU
dc.date.available2015-10-14T00:43:27Zen_AU
dc.date.issued2013-10-01en_AU
dc.date.statistics2015-10-08en_AU
dc.description.abstractDavidite (A1−xM21O38) samples from five different geological localities contain approximately 0.2 to 9.5 wt% UO2 (0.02 to 0.65 atoms per formula unit) and <0.1 to 1.3 wt% ThO2 (<0.01 to 0.09 atoms per formula unit). Maximum amounts of other notable cations include 3.7 wt% V2O3, 4.1 wt% Cr2O3, 2.5 wt% Y2O3, 5.6 wt% La2O3, 6.0 wt% Ce2O3, 4.0 wt% MnO, 2.4 wt% ZnO, 2.7 wt% SrO, and 4.9 wt% PbO. As a result of the variation in age and Th-U content, the calculated α decay dose ranges from ~0.2 to 44 × 1016 α/mg (~0.06 to 14.5 dpa). For samples with ages of 275–295 Ma, the critical dose for amorphization based on electron diffraction is ~0.8 × 1016 α/mg. Natural davidite is commonly altered to rutile, ilmenite, titanite, and other minor phases. © 2013, Mineralogical Society of America.en_AU
dc.identifier.citationLumpkin, G. R., Blackford, M. G., & Colella, M. (2013). Chemistry and radiation effects of davidite. American Mineralogist, 98(1), 275-278. doi:10.2138/am.2013.4236en_AU
dc.identifier.govdoc6151en_AU
dc.identifier.issn0003-004xen_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleAmerican Mineralogisten_AU
dc.identifier.pagination275-278en_AU
dc.identifier.urihttp://dx.doi.org/10.2138/am.2013.4236en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6319en_AU
dc.identifier.volume98en_AU
dc.language.isoenen_AU
dc.publisherGeoScienceWorlden_AU
dc.subjectCationsen_AU
dc.subjectDecayen_AU
dc.subjectRutileen_AU
dc.subjectIlmeniteen_AU
dc.subjectUraniumen_AU
dc.subjectRare earthsen_AU
dc.titleChemistry and radiation effects of daviditeen_AU
dc.typeJournal Articleen_AU
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