DOI: 10.5593/SGEM2015/B11/S1.069


T. Mayorova, E. Statsenko
Tuesday 4 August 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-31-5 / ISSN 1314-2704, June 18-24, 2015, Book1 Vol. 1, 543-552 pp

An experimental investigation of gold-quartz-sulfide ore occurrences (Verhneniyayuskoe 2 and Niyahoyskoe 2) located in the Polar Urals was held by methods of X-ray microtomography. Different shooting modes and image analysis were tried. The three-dimensional images of the internal structure of ores and distribution of fine gold in them were obtained. The possibility of study of submicron gold morphology is discussed. Gold identification in the samples was conducted by finding of areas with maximal X-ray density. The gold from Verkhneniyayuskoe-2 and Niyakhoyskoe-2 deposits is morphologically different. The conducted experiments showed the efficiency of application of non-destructive X-ray tomography to study the textural features of sulfide ores with fine gold, visualization of its distribution in ores in 3D projections, and also particle morphology, which have a great importance for prospecting and assessment of deposits and enrichment methods for these refractory ores.

Key words: X-ray microtomography, gold-sulfide deposits, fine gold, Polar Urals.

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