Etching of fission tracks in monazite: An experimental study
This study reports a range of etching and annealing experiments to establish the optimum conditions for the etching of fission tracks in monazite. The previously reported concentrated (12 M) HCl etchant at 90°C was found to cause grain loss from epoxy mounts and high degrees of grain corrosion, as d...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
WILEY
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/79369 |
| _version_ | 1848764040101232640 |
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| author | Jones, S. Gleadow, A. Kohn, B. Reddy, Steven |
| author_facet | Jones, S. Gleadow, A. Kohn, B. Reddy, Steven |
| author_sort | Jones, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study reports a range of etching and annealing experiments to establish the optimum conditions for the etching of fission tracks in monazite. The previously reported concentrated (12 M) HCl etchant at 90°C was found to cause grain loss from epoxy mounts and high degrees of grain corrosion, as did much longer etching times at lower temperatures. Using implanted 252 Cf semi-tracks, a series of experiments were performed on internal prismatic faces of monazite-(Ce) crystals from the Palaeozoic Harcourt Granodiorite (Victoria, Australia) using an alternative 6 M HCl etchant, also at 90°C. Step-etch results show optimal etching at 60–90 min. Further, an isothermal annealing experiment illustrated that the degree of annealing that can be expected during etching at 90°C under laboratory time scales is negligible. The etching rate between grains is not uniform, with a correlation demonstrated between over-etched grains and high U and Th concentrations. |
| first_indexed | 2025-11-14T11:13:02Z |
| format | Journal Article |
| id | curtin-20.500.11937-79369 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:13:02Z |
| publishDate | 2019 |
| publisher | WILEY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-793692020-07-07T00:40:26Z Etching of fission tracks in monazite: An experimental study Jones, S. Gleadow, A. Kohn, B. Reddy, Steven Science & Technology Physical Sciences Geosciences, Multidisciplinary Geology ZIRCON This study reports a range of etching and annealing experiments to establish the optimum conditions for the etching of fission tracks in monazite. The previously reported concentrated (12 M) HCl etchant at 90°C was found to cause grain loss from epoxy mounts and high degrees of grain corrosion, as did much longer etching times at lower temperatures. Using implanted 252 Cf semi-tracks, a series of experiments were performed on internal prismatic faces of monazite-(Ce) crystals from the Palaeozoic Harcourt Granodiorite (Victoria, Australia) using an alternative 6 M HCl etchant, also at 90°C. Step-etch results show optimal etching at 60–90 min. Further, an isothermal annealing experiment illustrated that the degree of annealing that can be expected during etching at 90°C under laboratory time scales is negligible. The etching rate between grains is not uniform, with a correlation demonstrated between over-etched grains and high U and Th concentrations. 2019 Journal Article http://hdl.handle.net/20.500.11937/79369 10.1111/ter.12382 English WILEY restricted |
| spellingShingle | Science & Technology Physical Sciences Geosciences, Multidisciplinary Geology ZIRCON Jones, S. Gleadow, A. Kohn, B. Reddy, Steven Etching of fission tracks in monazite: An experimental study |
| title | Etching of fission tracks in monazite: An experimental study |
| title_full | Etching of fission tracks in monazite: An experimental study |
| title_fullStr | Etching of fission tracks in monazite: An experimental study |
| title_full_unstemmed | Etching of fission tracks in monazite: An experimental study |
| title_short | Etching of fission tracks in monazite: An experimental study |
| title_sort | etching of fission tracks in monazite: an experimental study |
| topic | Science & Technology Physical Sciences Geosciences, Multidisciplinary Geology ZIRCON |
| url | http://hdl.handle.net/20.500.11937/79369 |