Quantification of Fe-oxidation state in mixed valence minerals: a geochemical application of EELS

机译：混合价矿物中铁氧化态的定量：EELS的地球化学应用

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Gaussian, Lorentzian and Breit-Wigner-Fano line profiles can be used to fit Fe L_(2,3)-ELNES from both Fe~(2+) and Fe~(3+) end-members, as well as mixed valence minerals. This method of fitting has produced robust results for minerals containing >2 atom % total Fe, which agree with published data and demonstrates a useful analytical tool with a wide range of applications for the Geosciences. The Fe L_(2,3)-ELNES, of a mixed valence calcic amphibole, collected at 20℃ and -180℃ show the effects of temperature on the inhibition of electron hopping in this mineral.

机译：高斯，洛伦兹和Breit-Wigner-Fano线剖面可用于拟合来自Fe〜（2+）和Fe〜（3+）端基的Fe L_（2,3）-ELNES以及混合价矿物。对于总铁含量> 2原子％的矿物，这种拟合方法已产生了可靠的结果，这与已发表的数据相符，并证明了一种有用的分析工具，在地球科学领域具有广泛的应用。在20℃和-180℃下收集的混合价钙闪石的Fe L_（2,3）-ELNES表现出温度对这种矿物抑制电子跳跃的影响。

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《Institute of Physics Electron Microscopy and Analysis Group Conference, Sep 5-7, 2001, Dundee》|2001年|p.251-254|共4页
会议地点 Dundee(GB);Dundee(GB)
作者
C. C. Calvert; R. Brydson; D. A. Banks; G. E. Lloyd;
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作者单位

Department of Materials, Department of Earth Sciences, University of Leeds, Leeds, LS2 9JT UK;

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原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
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2. Manganese valence imaging in Mn minerals at the nanoscale using STEM-EELS [J] . Loomer DB, Al TA, Weaver L, The American mineralogist . 2007,第1期

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4. Quantification of Fe-oxidation state in mixed valence minerals: a geochemical application of EELS [C] . C. C. Calvert, R. Brydson, D. A. Banks, Institute of Physics Electron Microscopy and Analysis Group conference . 2001

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Quantification of Fe-oxidation state in mixed valence minerals: a geochemical application of EELS

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