| Reference Type | Journal (article/letter/editorial) |
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| Title | Unusual sector zoning in Lewisian zircons |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Hoffman, J. F. | Author |
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| Long, J. V. P. | Author |
| Year | 1984 (December) | Volume | 48 |
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| Issue | 349 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_48/48-349-513.pdf+ |
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| DOI | doi:10.1180/minmag.1984.048.349.05Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3665 | Long-form Identifier | mindat:1:5:3665:2 |
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| GUID | 0 |
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| Full Reference | Hoffman, J. F., Long, J. V. P. (1984) Unusual sector zoning in Lewisian zircons. Mineralogical Magazine, 48 (349) 513-517 doi:10.1180/minmag.1984.048.349.05 |
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| Plain Text | Hoffman, J. F., Long, J. V. P. (1984) Unusual sector zoning in Lewisian zircons. Mineralogical Magazine, 48 (349) 513-517 doi:10.1180/minmag.1984.048.349.05 |
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| In | (1984, December) Mineralogical Magazine Vol. 48 (349) Mineralogical Society |
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| Abstract/Notes | AbstractAn unusual form of sector zoning has been recorded in some Lewisian zircons. The sectors lie in a plane cut perpendicular to the c-axis and are observed as variations in the intensity of cathodoluminescence, and in trace-element concentrations. Sectors radiating from the centre of growth out to the {100} faces exhibit low-intensity cathodoluminescence and are enriched in Y and depleted in Hf and Zr. Those radiating to the {110} faces are brightly luminescent, slightly enriched in Hf and depleted in Y. X-ray diffraction data, and comparison with previous studies of zircons, suggest that the sectors vary slightly in crystallographic orientation, such that the boundaries between sectors form discontinuities in the structure. |
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