Kapitel/Beitrag aus dem Buch: Längle, T et al. 2015. OCM 2015 – 2nd International Conference on Optical Characterization of Materials, March 18th – 19th, 2015, Karlsruhe, Germany : Conference Proceedings.
Test work was performed with near-infrared (NIR)
spectroscopy on 94 ore samples from a South-American Au-Ag
mine. The aim of the test work was to investigate if alteration
minerals can be detected with the NIR sensor that can be used as
indicators of ore value. Partial least squares discriminant analysis
(PLS-DA) was applied to the spectral data to make classification
models that use the measured NIR spectra to distinguish samples
with certain Au, S or C grades. This showed that detection of
mineralogy with NIR spectroscopy can be used to discriminate
on i) ore particles with low Au and Ag grades ii) ore particles
with high carbon contents iii) ore particles with high sulphide
contents.
Dalm M. & Buxton M. 2015. Application of near-infrared (NIR)spectroscopy to sensor based sorting of anepithermal Au-Ag ore. In: Längle, T et al (eds.), OCM 2015 – 2nd International Conference on Optical Characterization of Materials, March 18th – 19th, 2015, Karlsruhe, Germany : Conference Proceedings. Karlsruhe: KIT Scientific Publishing. DOI: https://doi.org/10.58895/ksp/1000044906-16
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Veröffentlicht am 18. März 2015