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Experimental and theoretical XANES study of the effects of Fe-Mg solid solution in the enstatite-ferrosilite series
Wu ZY(吴自玉); Wu, ZY; Paris, E; Giuli, G; Mottana, A; Seifert, F
2001
发表期刊JOURNAL OF SYNCHROTRON RADIATION
卷号8期号:2页码:966-968
通讯作者Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy ; Univ Camerino, Dipartimento Sci Terra, I-62032 Camerino, Italy ; Univ Camerino, INFM, I-62032 Camerino, Italy ; Terza Univ Roma, Dipartimento Sci Geol, I-00154 Rome, Italy ; Univ Bayreuth, Bayer Geoinst, D-95447 Bayreuth, Germany
摘要Synthetic orthopyroxenes in the join enstatite - ferrosilite (Mg2Si2O6-Fe2Si2O6) have been studied by XANES with the aim to interpret the variations found in the spectra and evaluate the effects of the Mg-Fe substitution in the orthopyroxene (OPX) structure. The experimental Fe- and Mg-K edge XANES spectra show variations of the peaks intensity as a function of the chemical composition of the samples along the EN-FS join. In the region of the Fe edge, the intensity ratio between peak A and B (IB/IA) varies linearly (R = 0.99) with the Mg/Fe substitution. Multiple scattering calculation have been performed both at the Fe and Mg K-edge, to study the geometrical modifications of the M1 and M2 octahedral sites induced by the Mg-Fe substitutions. The spectra, obtained locating Fe (or Mg) in both M1 and M2 and weighing the contributions using the occupancy data for the M1 and M2 sites determined by XRD, allow to discriminate the effects to the total spectrum due to Fe (Mg) located in each sites separately.
文章类型Article; Proceedings Paper
关键词XANES solid solution Fe and MgK edges
学科领域Instruments & Instrumentation; Optics; Physics
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics
DOI10.1107/S0909049500020665
URL查看原文
语种英语
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000167298100293
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被引频次:2[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/311005/238816
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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Wu ZY,Wu, ZY,Paris, E,et al. Experimental and theoretical XANES study of the effects of Fe-Mg solid solution in the enstatite-ferrosilite series[J]. JOURNAL OF SYNCHROTRON RADIATION,2001,8(2):966-968.
APA 吴自玉,Wu, ZY,Paris, E,Giuli, G,Mottana, A,&Seifert, F.(2001).Experimental and theoretical XANES study of the effects of Fe-Mg solid solution in the enstatite-ferrosilite series.JOURNAL OF SYNCHROTRON RADIATION,8(2),966-968.
MLA 吴自玉,et al."Experimental and theoretical XANES study of the effects of Fe-Mg solid solution in the enstatite-ferrosilite series".JOURNAL OF SYNCHROTRON RADIATION 8.2(2001):966-968.
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