57Fe Mössbauer spectroscopy of tektites
57Fe Mössbauer spectroscopy of tektites
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DOI：
10.1007/s002690050216
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发表时间：
1999-07
影响因子：
1.4
通讯作者：
S. Rossano;E. Balan;G. Morin;J.-P. Bauer;G. Calas;C. Brouder
中科院分区：
文献类型：
--
作者：
S. Rossano;E. Balan;G. Morin;J.-P. Bauer;G. Calas;C. Brouder
使用 57 Fe 穆斯堡尔光谱研究玻璃陨石玻璃。使用基于异构体位移和四极分裂的二维分布的两种互补分析方法进行室温光谱分析。不考虑两个超精细参数之间的先验相关性。第一种方法基于形状无关分布，为第二种方法中使用的高斯分布形状提供了理由。尽管使用了几个标准，但穆斯堡尔谱分析表明这些样品中没有三价铁的贡献。二价铁位点显示在四重和五重配位位点之间连续分布。
Tektite glasses are investigated using57Fe Mössbauer spectroscopy. Room temperature spectra analysis is performed using two complementary analytical methods based on two-dimensional distributions of both isomer shift and quadrupole splitting. No a priori correlation between the two hyperfine parameters is considered. The first method, based on a shape independent distribution, provides the justification for the Gaussian distribution shape used in the second method. No ferric iron contribution is evidenced by Mössbauer spectra analysis in these samples, although several criteria are used. Ferrous iron sites are shown to be continuously distributed between four- and five-fold co-ordinated sites.