Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities
This study investigates the variations of structural parameters and chemistry of a partially metamict and seven detrital zircon samples from different localities using single-crystal X-ray diffraction, synchrotron high-resolution powder X-ray diffraction, and electron-probe micro-analysis techniques...
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ftosti:oai:osti.gov:1701761 2023-07-30T04:01:51+02:00 Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities Zaman, M. Antao, Sytle 2020-12-02 application/pdf http://www.osti.gov/servlets/purl/1701761 https://www.osti.gov/biblio/1701761 https://doi.org/10.3390/min10110947 unknown http://www.osti.gov/servlets/purl/1701761 https://www.osti.gov/biblio/1701761 https://doi.org/10.3390/min10110947 doi:10.3390/min10110947 58 GEOSCIENCES 2020 ftosti https://doi.org/10.3390/min10110947 2023-07-11T09:52:20Z This study investigates the variations of structural parameters and chemistry of a partially metamict and seven detrital zircon samples from different localities using single-crystal X-ray diffraction, synchrotron high-resolution powder X-ray diffraction, and electron-probe micro-analysis techniques. The unit-cell parameters for the eight zircon samples vary linearly with increasing unit-cell volume, V. A zircon sample from the Canadian Arctic Islands has the smallest unit-cell parameters, bond distances, ideal stoichiometric composition, unaffected by α-radiation damage, and is chemically pure. A zircon sample from Jemaa, Nigeria has the largest unit-cell parameters because of the effect of α-radiation doses received over a long time (2384 Ma). All the samples show good correlations between Zr and Si apfu (atom per formula unit) versus unit-cell volume, V. The α-radiation doses in the samples are lower than ~3.5 × 1015 α-decay events/mg. Substitutions of other cations at the Zr and Si sites control the variations of the structural parameters. Relatively large unit-cell parameters and bond distances occur because the Zr site accommodates other cations that have larger ionic radii than the Zr atom. Geological age increases the radiation doses in zircon and it is related to V. Other/Unknown Material Arctic SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Minerals 10 11 947 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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58 GEOSCIENCES Zaman, M. Antao, Sytle Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
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58 GEOSCIENCES |
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This study investigates the variations of structural parameters and chemistry of a partially metamict and seven detrital zircon samples from different localities using single-crystal X-ray diffraction, synchrotron high-resolution powder X-ray diffraction, and electron-probe micro-analysis techniques. The unit-cell parameters for the eight zircon samples vary linearly with increasing unit-cell volume, V. A zircon sample from the Canadian Arctic Islands has the smallest unit-cell parameters, bond distances, ideal stoichiometric composition, unaffected by α-radiation damage, and is chemically pure. A zircon sample from Jemaa, Nigeria has the largest unit-cell parameters because of the effect of α-radiation doses received over a long time (2384 Ma). All the samples show good correlations between Zr and Si apfu (atom per formula unit) versus unit-cell volume, V. The α-radiation doses in the samples are lower than ~3.5 × 1015 α-decay events/mg. Substitutions of other cations at the Zr and Si sites control the variations of the structural parameters. Relatively large unit-cell parameters and bond distances occur because the Zr site accommodates other cations that have larger ionic radii than the Zr atom. Geological age increases the radiation doses in zircon and it is related to V. |
author |
Zaman, M. Antao, Sytle |
author_facet |
Zaman, M. Antao, Sytle |
author_sort |
Zaman, M. |
title |
Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
title_short |
Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
title_full |
Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
title_fullStr |
Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
title_full_unstemmed |
Crystal Chemistry and Structural Variations for Zircon Samples from Various Localities |
title_sort |
crystal chemistry and structural variations for zircon samples from various localities |
publishDate |
2020 |
url |
http://www.osti.gov/servlets/purl/1701761 https://www.osti.gov/biblio/1701761 https://doi.org/10.3390/min10110947 |
geographic |
Arctic |
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Arctic |
genre |
Arctic |
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Arctic |
op_relation |
http://www.osti.gov/servlets/purl/1701761 https://www.osti.gov/biblio/1701761 https://doi.org/10.3390/min10110947 doi:10.3390/min10110947 |
op_doi |
https://doi.org/10.3390/min10110947 |
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Minerals |
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10 |
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947 |
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