First results of the application of scanning XRF analysis with synchrotron-radiation beams from the VEPP-3 to study the spatial distribution of trace elements in samples of stratiform chromite ores


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Abstract

A sample from chromite horizon UG1 of the platiniferous Bushveld complex (South Africa) is studied by scanning X-ray fluorescence (XRF) microanalysis using synchrotron-radiation beams from the VEPP-3 storage ring. The sample contains plagioclase and chromite layers 3–5 mm in thickness. The experimental study is conducted at excitation energies of 15 and 30 keV; the spot size of the excitation radiation is 0.1 ± 2 mm; and the scanning step is 100 µm. The distribution profiles of more than 20 trace elements over the surface of the sample are obtained.

About the authors

A. V. Darin

Sobolev Institute of Geology and Mineralogy; Perm State National Research University

Author for correspondence.
Email: darin@ngs.ru
Russian Federation, Novosibirsk, 630090; Perm, 614990

I. V. Veksler

Perm State National Research University; Department of Mineralogy and Petrology

Email: darin@ngs.ru
Russian Federation, Perm, 614990; Berlin, 13355

Ya. V. Rakshun

Budker Institute of Nuclear Physics

Email: darin@ngs.ru
Russian Federation, Novosibirsk, 630090

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