Octahedral site Fe2+ quadrupole splitting distributions from the Mossbauer spectra of arrojadite
文献类型：期刊论文
| 作者 | Shinno, I; Li, Z |
| 刊名 | AMERICAN MINERALOGIST
 |
| 出版日期 | 1998-11-01 |
| 卷号 | 83期号:11-12页码:1316-1322 |
| ISSN号 | 0003-004X |
| 文献子类 | Article |
| 英文摘要 | The Mossbauer spectra of arrojadite, (K,Ba)(Na,Ca)(5)(Fe2+,Mn,Mg)(14)Al(PO4)(12) (OH,F), at 298 and 95 K were investigated for the first time. The spectra at both temperatures were analyzed in terms of their Fe2+ quadrupole splitting distributions (QSDs). The overall QSDs at both temperatures can be interpreted in terms of five octahedral site Fe2+ QSD contributions. The quadratic elongation, [lambda], and the variation of bond angles, sigma(2), for the different sites were calculated on the basis of the structural data obtained by Moore et al. (1981). The five QSD contributions are tentatively assigned to Fe2+ in the M3, M4, M5, M6, and M7 sites, based on the structural determination and the relation of the quadrupole splitting to the distortion of the octahedra, respectively. The Fe2+ ions are randomly distributed over the M3, M4, M5, M6, and M7 sites. In addition, Mossbauer data from arrojadite and related phosphate minerals indicate that the mean value of the isomer shift of Fe2+ in the octahedral sites in phosphate minerals is similar to 0.07 mm/s larger than that in silicate minerals. This difference is explained in terms of electron affinity. |
| WOS关键词 | VOIGT-BASED METHODS ; CATION DISTRIBUTION ; ATOMIC ARRANGEMENT ; SPECTROSCOPY ; MINERALS ; SERIES ; PHOSPHATES |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000077410500020 |
| 出版者 | MINERALOGICAL SOC AMER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75106]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Shinno, I |
| 作者单位 | 1.Kyushu Univ, Grad Sch Social & Cultural Study, Fukuoka 810, Japan 2.Chinese Acad Sci, Inst Geol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shinno, I,Li, Z. Octahedral site Fe2+ quadrupole splitting distributions from the Mossbauer spectra of arrojadite[J]. AMERICAN MINERALOGIST,1998,83(11-12):1316-1322. |
| APA | Shinno, I,&Li, Z.(1998).Octahedral site Fe2+ quadrupole splitting distributions from the Mossbauer spectra of arrojadite.AMERICAN MINERALOGIST,83(11-12),1316-1322. |
| MLA | Shinno, I,et al."Octahedral site Fe2+ quadrupole splitting distributions from the Mossbauer spectra of arrojadite".AMERICAN MINERALOGIST 83.11-12(1998):1316-1322. |
入库方式： OAI收割
来源：地质与地球物理研究所
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