Response of cathodoluminescence to crystal-plastic deformation in zircon
Geochemical and geochronological studies of zircon are commonly supplemented by cathodoluminescence (CL) imaging because it provides a means of recognizing different generations of zircon growth at high-spatial resolution. Crystal-plastic deformation of zircon can have significant effects on zircon...
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| Format: | Journal Article |
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Elsevier Science BV
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/47247 |
| _version_ | 1848757781469855744 |
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| author | Timms, Nicholas Eric Reddy, Steven |
| author_facet | Timms, Nicholas Eric Reddy, Steven |
| author_sort | Timms, Nicholas Eric |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Geochemical and geochronological studies of zircon are commonly supplemented by cathodoluminescence (CL) imaging because it provides a means of recognizing different generations of zircon growth at high-spatial resolution. Crystal-plastic deformation of zircon can have significant effects on zircon geochemistry. Detailed analyses from electron backscatter diffraction mapping combined with panchromatic CL imaging and hyperspectral CL mapping of several crystal-plastically deformed grains from different geological settings are used to establish the relationships between crystal-plastic deformation and CL in zircon. Results show a strong spatial association between deformation microstructures and CL response that lead to modification of CL that commonly cross-cuts primary zoning. Variable contributions from two fundamental deformation-related processes result in a variety of CL characteristics: A defect control on panchromatic CL intensity, particularly at low-angle (subgrain) boundaries; and changes in spectral CL response due to deformation-related modification of CL-active REE geochemistry. A framework is provided for the recognition of deformation-related microstructures using CL and the usefulness of CL imaging in the discrimination of these microstructures is critically evaluated. |
| first_indexed | 2025-11-14T09:33:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-47247 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:33:33Z |
| publishDate | 2009 |
| publisher | Elsevier Science BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-472472017-09-13T16:00:44Z Response of cathodoluminescence to crystal-plastic deformation in zircon Timms, Nicholas Eric Reddy, Steven EBSD Cathodoluminescence Zircon Microstructure Deformation REE Geochemical and geochronological studies of zircon are commonly supplemented by cathodoluminescence (CL) imaging because it provides a means of recognizing different generations of zircon growth at high-spatial resolution. Crystal-plastic deformation of zircon can have significant effects on zircon geochemistry. Detailed analyses from electron backscatter diffraction mapping combined with panchromatic CL imaging and hyperspectral CL mapping of several crystal-plastically deformed grains from different geological settings are used to establish the relationships between crystal-plastic deformation and CL in zircon. Results show a strong spatial association between deformation microstructures and CL response that lead to modification of CL that commonly cross-cuts primary zoning. Variable contributions from two fundamental deformation-related processes result in a variety of CL characteristics: A defect control on panchromatic CL intensity, particularly at low-angle (subgrain) boundaries; and changes in spectral CL response due to deformation-related modification of CL-active REE geochemistry. A framework is provided for the recognition of deformation-related microstructures using CL and the usefulness of CL imaging in the discrimination of these microstructures is critically evaluated. 2009 Journal Article http://hdl.handle.net/20.500.11937/47247 10.1016/j.chemgeo.2008.09.008 Elsevier Science BV fulltext |
| spellingShingle | EBSD Cathodoluminescence Zircon Microstructure Deformation REE Timms, Nicholas Eric Reddy, Steven Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title | Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title_full | Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title_fullStr | Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title_full_unstemmed | Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title_short | Response of cathodoluminescence to crystal-plastic deformation in zircon |
| title_sort | response of cathodoluminescence to crystal-plastic deformation in zircon |
| topic | EBSD Cathodoluminescence Zircon Microstructure Deformation REE |
| url | http://hdl.handle.net/20.500.11937/47247 |