Luminescence and ESR of the natural alkali feldspars, extracted from sediments, doped by probe impurities

Natural alkali feldspars extracted from sediments were doped by probe impurities (Eu, Ag, Cu) whose behaviour has been studied in other crystal matrices. On the basis of luminescence and ESR characteristics of the doped minerals, and using analogy with other systems, it is concluded that Eu 2+ and A...

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Bibliographic Details
Published in:Radiation measurements 1995-10, Vol.24 (4), p.557-563
Main Authors: Jaek, I., Hütt, G., Seeman, V., Brodski, L.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochronology
Isotope geochemistry. Geochronology
Marine and continental quaternary
Mineralogy
Silicates
Surficial geology
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Summary:Natural alkali feldspars extracted from sediments were doped by probe impurities (Eu, Ag, Cu) whose behaviour has been studied in other crystal matrices. On the basis of luminescence and ESR characteristics of the doped minerals, and using analogy with other systems, it is concluded that Eu 2+ and Ag + centres were created in alkali feldspars. It is established that thermal and optical depopulation of traps, actual for luminescence dating, leads to subsequent electron recombination processes.
ISSN:1350-4487
1879-0925
DOI:10.1016/1350-4487(95)00282-J