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Determination of trace element distribution in quartz by hyperspectral cathodoluminescence microscopy
Citation
Goemann, K and Vasyukova, O and Kamenetsky, VS and MacRae, CM and Wilson, NC, Determination of trace element distribution in quartz by hyperspectral cathodoluminescence microscopy, APMC, 5-9 Feb. 2012, Perth, Western Australia, pp. 365-1 - 365-2. ISBN 978-1-74052-245-8 (2012) [Conference Edited]
Abstract
Quartz eyes from the two porphyry deposits Rio Blanco (Chile) and Climax (USA) were studied by hyperspectral cathodoluminescence (CL) mapping, electron probe microanalysis (EPMA), and Fourier transform infra-red (FTIR) microspectroscopy. Deconvolution of the CL spectra revealed three peaks responsible for the total CL emission at energies of 1.93 eV, 2.05 eV and 2.72 eV. The first two peaks are assigned to non-bridging oxygen hole centres and oxygen vacancies, respectively. The 2.72 eV peak is attributed to the alkali compensated paramagnetic [TiO4/M+] centre with M being Li+ or Na+. Its emission intensity shows a linear correlation with the Ti concentration determined in EPMA point measurements. In addition, a negative correlation between the 1.93 eV emission and the Al concentration is observed by CL-EPMA and confirmed by FTIR.
Item Details
Item Type: | Conference Edited |
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Keywords: | Cathodoluminescence, Quartz |
Research Division: | Chemical Sciences |
Research Group: | Macromolecular and materials chemistry |
Research Field: | Structure and dynamics of materials |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the earth sciences |
UTAS Author: | Goemann, K (Dr Karsten Goemann) |
UTAS Author: | Vasyukova, O (Miss Olga Vasyukova) |
UTAS Author: | Kamenetsky, VS (Professor Vadim Kamenetsky) |
ID Code: | 78377 |
Year Published: | 2012 |
Deposited By: | Central Science Laboratory |
Deposited On: | 2012-06-25 |
Last Modified: | 2012-06-25 |
Downloads: | 0 |
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