Uranium-bearing francolites present in organic-rich limestones of NW Greece: a preliminary study using synchrotron radiation and fission track techniques
Synchrotron radiation techniques (μ-XRF and μ-XANES) were applied to the study of organic-rich phosphatized limestones of NW Greece (Epirus). The results revealed uranium accumulation in areas of the material containing, among others, carbonate apatite (francolite) and organic matter. The UL3-edge o...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2017
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| In: |
Journal of radioanalytical and nuclear chemistry
Year: 2017, Volume: 311, Issue: 1, Pages: 465-472 |
| ISSN: | 1588-2780 |
| DOI: | 10.1007/s10967-016-4973-4 |
| Online Access: | Verlag, Volltext: https://link.springer.com/content/pdf/10.1007%2Fs10967-016-4973-4.pdf Verlag, Volltext: http://dx.doi.org/10.1007/s10967-016-4973-4 Verlag, Volltext: https://link.springer.com/article/10.1007/s10967-016-4973-4 
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| Author Notes: | I.T. Tzifas, U.A. Glasmacher, P. Misaelides, A. Godelitsas, P.N. Gamaletsos, J. Goettlicher, D. Françoso de Godoy |
| Summary: | Synchrotron radiation techniques (μ-XRF and μ-XANES) were applied to the study of organic-rich phosphatized limestones of NW Greece (Epirus). The results revealed uranium accumulation in areas of the material containing, among others, carbonate apatite (francolite) and organic matter. The UL3-edge of μ-XANES spectra showed that uranium was present in tetravalent form. U-bearing francolite crystals were separated from the rock and characterized by Raman spectroscopy and microprobe. The analysis of the crystals also indicated the presence of sodium and sulfur. The uranium presence in the crystals was also visualized, after neutron irradiation and etching, by the observation of the fission tracks. |
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| Item Description: | Gesehen am 12.07.2017 Published online 4 August 2016 |
| Physical Description: | Online Resource |
| ISSN: | 1588-2780 |
| DOI: | 10.1007/s10967-016-4973-4 |