Quantitative cathodoluminescence mapping with application to a Kalgoorlie scheelite

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dc.contributor.authorMacRae, C.
dc.contributor.authorWilson, N.
dc.contributor.authorBrugger, J.
dc.date.issued2009
dc.descriptionCopyright © Microscopy Society of America 2009
dc.description.abstractA method for the analysis of cathodoluminescence spectra is described that enables quantitative trace-element-level distributions to be mapped within minerals and materials. Cathodoluminescence intensities for a number of rare earth elements are determined by Gaussian peak fitting, and these intensities show positive correlation with independently measured concentrations down to parts per million levels. The ability to quantify cathodoluminescence spectra provides a powerful tool to determine both trace element abundances and charge state, while major elemental levels can be determined using more traditional X-ray spectrometry. To illustrate the approach, a scheelite from Kalgoorlie, Western Australia, is hyperspectrally mapped and the cathodoluminescence is calibrated against microanalyses collected using a laser ablation inductively coupled plasma mass spectrometer. Trace element maps show micron scale zoning for the rare earth elements Sm3+, Dy3+, Er3+, and Eu3+/Eu2+. The distribution of Eu2+/Eu3+ suggests that both valences of Eu have been preserved in the scheelite since its crystallization 1.63 billion years ago.
dc.description.statementofresponsibilityColin M. MacRaea, Nicholas C. Wilsona and Joel Brugger
dc.identifier.citationMicroscopy and Microanalysis, 2009; 15(3):222-230
dc.identifier.doi10.1017/S1431927609090308
dc.identifier.issn1431-9276
dc.identifier.issn1435-8115
dc.identifier.urihttp://hdl.handle.net/2440/52315
dc.language.isoen
dc.publisherSpringer-Verlag
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0878903
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0878903
dc.source.urihttps://doi.org/10.1017/s1431927609090308
dc.titleQuantitative cathodoluminescence mapping with application to a Kalgoorlie scheelite
dc.typeJournal article
pubs.publication-statusPublished

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