6533b824fe1ef96bd12815fe
RESEARCH PRODUCT
Singular value decomposition approach to the yttrium occurrence in mineral maps of rare earth element ores using laser-induced breakdown spectroscopy
Heikki HäkkänenSari RomppanenSaara Kaskisubject
Materials sciencespektroskopiaEudialyteMineralogychemistry.chemical_elementengineering.material010502 geochemistry & geophysics01 natural sciencesAnalytical ChemistryGeological formationSingular value decompositionmineraalitLaser-induced breakdown spectroscopySpectroscopyInstrumentationta116Spectroscopy0105 earth and related environmental sciencesgeographygeography.geographical_feature_categoryMineralRare-earth element010401 analytical chemistrysingular value decompositionYttriumharvinaiset maametallitAtomic and Molecular Physics and Optics0104 chemical sciencesyttriumrock analysischemistryanalyysiengineeringlaser-induced breakdown spectroscopy (LIBS)mineral mappingdescription
Laser-induced breakdown spectroscopy (LIBS) has been used in analysis of rare earth element (REE) ores from the geological formation of Norra Kärr Alkaline Complex in southern Sweden. Yttrium has been detected in eudialyte (Na15 Ca6(Fe,Mn)3 Zr3Si(Si25O73)(O,OH,H2O)3 (OH,Cl)2) and catapleiite (Ca/Na2ZrSi3O9·2H2O). Singular value decomposition (SVD) has been employed in classification of the minerals in the rock samples and maps representing the mineralogy in the sampled area have been constructed. Based on the SVD classification the percentage of the yttrium-bearing ore minerals can be calculated even in fine-grained rock samples. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-08-01 | Spectrochimica Acta Part B: Atomic Spectroscopy |