闪石族11—12种阳离子占位的X射线衍射估算
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金资助项目!《闪石族类质同象及晶体化学的X射线研究》的全部成果(项目编号 :49413179)


X-ray Diffraction Estimation of 11~12 Cation Site-Occupancies of Amphibole Group
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文扼要地介绍了用X射线衍射强度数据估算闪石族矿物各阳离子占位的方法。实测数据证实,这不权在理论上是可能的,而且在实验上也是可行的。无论是钙质闪石还是碱性闪石,估算精度多数达到90%左右,可满足晶体化学研究之需。以估算的占位数按国际分类表判定的闪石种属与按成分分析的相比,两者的符合率达80%~85%,从而否定了前辈学者“闪石族不能用X射线粉末法研究”的断言,在这一问题上取得了突破性进展。

    Abstract:

    The present paper has revised and tested previous research results of theoretical analysis.Intensities of 18 characteristic peaks were picked up from 63 powder patterns of Ca-amphiboles which include 50 data from references and 13 measured data. By means of stepwise regression a series of experimental formulae were fitted between 18 characteristic reflection intensities and 11 cation site_occupanices to estimate the cation site_occupancy of Ca-amphibole with the precision of 78%~96%. As for Mg, Fe2+inΣsite (M1+M3+M2), K and vacancy Em in A site and Si in T1site, the cation site-occupancy precisions approach 90%. The precision is up to 80% for named crystal chemical class in amphibole nomenclature. It is evident that the calcula- tion of the cation site-occupancy of amphibloe group by X-ray powder diffraction is not only practical but also reliable. The authors have succeeded in extending this method to the alkali-amphibole subgroup. As Ca_Na ampohibloe subgroup is among 52 alkali_amphibloes, the method of estimating cation site-occupacies by X-ray powder diffraction is suitable for the whole amphibole subgroup.

    参考文献
    相似文献
    引证文献
引用本文

张以谏,黄俊杰,刘万余,张建洪,王冠鑫,2000,闪石族11—12种阳离子占位的X射线衍射估算[J].岩石矿物学杂志,19(1):55~68. Sun Yijian, Huang Junjie, Liu Wanyu,2000,X-ray Diffraction Estimation of 11~12 Cation Site-Occupancies of Amphibole Group[J]. Acta Petrologica et Mineralogica,19(1):55~68.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期:
  • 出版日期: