THE USE OF MOSSBAUER SPECTROSCOPY IN STABLE ISOTOPE GEOCHEMISTRY
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dc.contributor.author | Polyakov V.B. | |
dc.contributor.author | Mineev S.D. | |
dc.date.accessioned | 2021-01-28T11:13:02Z | |
dc.date.available | 2021-01-28T11:13:02Z | |
dc.date.issued | 2000 | |
dc.identifier | https://elibrary.ru/item.asp?id=13343582 | |
dc.identifier.citation | Geochimica et Cosmochimica Acta, 2000, 64, 5, 849-865 | |
dc.identifier.issn | 0016-7037 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/23874 | |
dc.description.abstract | The use of Mössbauer spectroscopic data on the second-order Doppler (SOD) shift to determine the reduced isotopic partition function ratio (β-factor) has been considered by the example of iron. Using the relation between the β-factor and the SOD shift in Mössbauer spectra, the temperature dependence of the iron β-factors for a wide range of minerals has been evaluated from experimental data on the SOD shift. It is shown that the β-factors of Fe³⁺ ions are considerably higher than those of Fe²⁺. The curve describing the temperature dependence of the β-factor for native iron is the boundary separating fields that are typical for ferric and ferrous ions. The value of the iron β-factor increases with increasing covalence of chemical bonds. In the case of covalent chemical bonds, the iron β-factor achieves high values even for ferrous compounds. | |
dc.title | THE USE OF MOSSBAUER SPECTROSCOPY IN STABLE ISOTOPE GEOCHEMISTRY | |
dc.type | Статья |
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