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Experimental and theoretical XANES and EXAFS study of tetra-ferriphlogopite
Giuli, G; Paris, E; Wu ZY(吴自玉); Wu, ZY; Brigatti, MF; Cibin, G; Mottana, A; Marcelli, A
2001
发表期刊EUROPEAN JOURNAL OF MINERALOGY
卷号13期号:6页码:1099-1108
通讯作者Univ Camerino, Dipartimento Sci Terra, I-62032 Camerino, Italy ; Univ Camerino, INFM, I-62032 Camerino, Italy ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Univ Modena & Reggio Emilia, Dipartimento Sci Terra, I-41100 Modena, Italy ; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy ; Univ Roma Tre, Dip Sci Geol, I-00146 Rome, Italy
文章类型Article; Proceedings Paper
摘要Experimental and theoretical EXAFS and XANES data on Fe coordination and bond distances have been obtained for a natural tetra-ferriphlogopite. XANES data show a predominance of trivalent iron in tetrahedral coordination. The use of theoretical multiple scattering calculations helps distinguish the contributions to the total spectrum coming from the different iron atoms. EXAFS spectra were reduced and analyzed using the GNXAS programs and Fe has been confirmed to be in tetrahedral coordination, with refined structural data Fe-O = 1.86 Angstrom, Fe-Si = 3.24 Angstrom, Fe-O-Si = 138 degrees. Moreover, a further contribution from Fe is detected corresponding to a Fe-O distance equal to 2.22 Angstrom. This latter contribution (20 mol % of the total Fe ca.) is interpreted to arise from divalent Fe in octahedral coordination, in excellent agreement with the structural and chemical data.
关键词XAS iron micas tetra-ferriphlogopite
学科领域Mineralogy
研究领域[WOS]Mineralogy ; Mineralogy
DOI10.1127/0935-1221/2001/0013-1099
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语种英语
研究领域[WOS]Mineralogy ; Mineralogy
WOS类目Mineralogy
WOS记录号WOS:000172473400010
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被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239045
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Giuli, G,Paris, E,Wu ZY,et al. Experimental and theoretical XANES and EXAFS study of tetra-ferriphlogopite[J]. EUROPEAN JOURNAL OF MINERALOGY,2001,13(6):1099-1108.
APA Giuli, G.,Paris, E.,吴自玉.,Wu, ZY.,Brigatti, MF.,...&Marcelli, A.(2001).Experimental and theoretical XANES and EXAFS study of tetra-ferriphlogopite.EUROPEAN JOURNAL OF MINERALOGY,13(6),1099-1108.
MLA Giuli, G,et al."Experimental and theoretical XANES and EXAFS study of tetra-ferriphlogopite".EUROPEAN JOURNAL OF MINERALOGY 13.6(2001):1099-1108.
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