The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration
New energy, transport, computer and telecommunication technologies require an increasing supply of rare earth elements (REEs). As a consequence, adequate and robust detection methods become essential for the exploration and discovery of new deposits, the improved characterization of existing deposit...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Remote Sensing |
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| Online Access: | http://www.mdpi.com/2072-4292/11/1/21 |
| _version_ | 1828139013317328896 |
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| author | Sandra Lorenz Jan Beyer Margret Fuchs Peter Seidel David Turner Johannes Heitmann Richard Gloaguen |
| author_facet | Sandra Lorenz Jan Beyer Margret Fuchs Peter Seidel David Turner Johannes Heitmann Richard Gloaguen |
| author_sort | Sandra Lorenz |
| collection | DOAJ |
| description | New energy, transport, computer and telecommunication technologies require an increasing supply of rare earth elements (REEs). As a consequence, adequate and robust detection methods become essential for the exploration and discovery of new deposits, the improved characterization of existing deposits and the future recycling of today’s high-tech products. Within this paper, we investigate the potential of combining passive reflectance (imaging and point sampling) with laser stimulated luminescence (point sampling) spectroscopic measurements across the visible, near and shortwave infrared for REE detection in non-invasive near-field mineral exploration. We analyse natural REE-bearing mineral samples from main REE-deposits around the world and focus on challenges such as the discrimination of overlapping spectroscopic features and the influence of the mineral type on detectability, feature position and mineral matrix luminescence. We demonstrate that the cross-validation of results from both methods increases the robustness and sensitivity, provides the potential for semi-quantification and enables the time- and cost-efficient detection of economically important REE, including Ce, Pr, Nd, Sm, Eu, Dy, Er, Yb and potentially also Ho and Tm. |
| first_indexed | 2024-04-11T18:45:29Z |
| format | Article |
| id | doaj.art-a84ae0f0649d4ff7aa19d01726af077d |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-04-11T18:45:29Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-a84ae0f0649d4ff7aa19d01726af077d2022-12-22T04:08:50ZengMDPI AGRemote Sensing2072-42922018-12-011112110.3390/rs11010021rs11010021The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral ExplorationSandra Lorenz0Jan Beyer1Margret Fuchs2Peter Seidel3David Turner4Johannes Heitmann5Richard Gloaguen6Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Division “Exploration Technology”, Chemnitzer Str. 40, 09599 Freiberg, GermanyInstitute of Applied Physics, Faculty of Chemistry and Physics, Technische Universität Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, GermanyHelmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Division “Exploration Technology”, Chemnitzer Str. 40, 09599 Freiberg, GermanyHelmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Division “Exploration Technology”, Chemnitzer Str. 40, 09599 Freiberg, GermanyDepartment of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, CanadaInstitute of Applied Physics, Faculty of Chemistry and Physics, Technische Universität Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, GermanyHelmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Division “Exploration Technology”, Chemnitzer Str. 40, 09599 Freiberg, GermanyNew energy, transport, computer and telecommunication technologies require an increasing supply of rare earth elements (REEs). As a consequence, adequate and robust detection methods become essential for the exploration and discovery of new deposits, the improved characterization of existing deposits and the future recycling of today’s high-tech products. Within this paper, we investigate the potential of combining passive reflectance (imaging and point sampling) with laser stimulated luminescence (point sampling) spectroscopic measurements across the visible, near and shortwave infrared for REE detection in non-invasive near-field mineral exploration. We analyse natural REE-bearing mineral samples from main REE-deposits around the world and focus on challenges such as the discrimination of overlapping spectroscopic features and the influence of the mineral type on detectability, feature position and mineral matrix luminescence. We demonstrate that the cross-validation of results from both methods increases the robustness and sensitivity, provides the potential for semi-quantification and enables the time- and cost-efficient detection of economically important REE, including Ce, Pr, Nd, Sm, Eu, Dy, Er, Yb and potentially also Ho and Tm.http://www.mdpi.com/2072-4292/11/1/21laser induced luminescence spectroscopyreflectance spectroscopyhyperspectral imaginglaser-induced fluorescencephotoluminescencerare earth elements |
| spellingShingle | Sandra Lorenz Jan Beyer Margret Fuchs Peter Seidel David Turner Johannes Heitmann Richard Gloaguen The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration Remote Sensing laser induced luminescence spectroscopy reflectance spectroscopy hyperspectral imaging laser-induced fluorescence photoluminescence rare earth elements |
| title | The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration |
| title_full | The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration |
| title_fullStr | The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration |
| title_full_unstemmed | The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration |
| title_short | The Potential of Reflectance and Laser Induced Luminescence Spectroscopy for Near-Field Rare Earth Element Detection in Mineral Exploration |
| title_sort | potential of reflectance and laser induced luminescence spectroscopy for near field rare earth element detection in mineral exploration |
| topic | laser induced luminescence spectroscopy reflectance spectroscopy hyperspectral imaging laser-induced fluorescence photoluminescence rare earth elements |
| url | http://www.mdpi.com/2072-4292/11/1/21 |
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