About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-1: An X-ray Spectromicroscopy Study of the Calcium Mineralization in the JEB Tailings Management Facility at McClean Lake, Saskatchewan |
Author(s) |
Arthur Situm, Jeremiah C Beam, Kebbi A Hughes, John Rowson, Joseph Essilfie-Dughan, Andrew Crawford, Andrew P Grosvenor |
On-Site Speaker (Planned) |
Arthur Situm |
Abstract Scope |
Solid mine/mill waste (i.e., tailings) often contain chemical species of interest that cannot be easily identified. One methodology previously used in the study of the McClean Lake uranium mill tailings was the combination of X-ray fluorescence (XRF) mapping and Ca K-edge micro X-ray absorption near edge spectroscopy (μ-XANES). This work expands this methodology: Firstly, through a fitting procedure that allows a larger library of XANES spectra collected from Ca-containing minerals to be applied to each μ-XANES spectrum collected from the tailings. Secondly, by analysis of tailing porewater analyte concentrations to rationalize the presence of trace chemical species of interest. Finally, the comparison of the elemental distribution in the tailings determined by XRF mapping to the fitting results of the μ-XANES spectra has been used to help validate the results of the fittings of the μ-XANES spectra. |
Proceedings Inclusion? |
Undecided |