权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

The macro and micro structures of minerals as indicators of the genesis environment

矿物的宏观和微观结构作为成因环境的指标

基本信息

批准号：
61302029
负责人：
NISHIDA Takashi
金额：
$ 2.18万
依托单位：
Chiba University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61302029/
关键词：
Micro texture of minerals Crystal defects Symmetry of crystal structure X-ray powder diffraction pattern Superconductive compound Crystal growth condition 結晶組織ドメイン構造 EXAFS法による局所構造結晶形と表面構造

项目摘要

The meeting on the title of the project were held two times in the term of the project, first at Tokyo in December 1986 and second at Chiba in November 1987. The active discussions at the meetings contributed the close co-operation of investigators who had researched respective subjects by different experimental method and yet aimed the same goal.The results of the project are as follows. 1. Crystal growth condition and micro structure of minerals: (1) Growth and characterization of superconductive compound from the high temperature solution. (2) Analysis of X-ray powder diffraction patterns. (3) Morphological change in mixed-layer minerals conversion series. (4) Identification of minerals by micro X-ray diffractometry with PSPC detector. (5) Goniometry of small crystal faces by micro computer system.2. Defects , substructure and micro texture of minerals: (1) An EXAFS study of local structures around Co atoms in synthetic fluoromicas and of local structure of solid solution. (2) Relations between crystal structure and chemical composition of superconductive compound. (3) Synthesis of laihunite by oxidation of olivine solid solution. (4) Mineralogy of coexisting pyroxenes in magnesian ureilites.3. Crystal symmetry and superlattice. (1) Polymorph of kalsilite and possible space groups.(2)Non-characteristic orbits in same crystal system.

在项目期间，就项目名称举行了两次会议，第一次是1986年12月在东京，第二次是1987年11月在千叶。会议上的热烈讨论，使研究人员得以紧密合作，他们以不同的实验方法研究不同的课题，但目标是一致的。1.晶体生长条件与矿物微观结构：（1）高温溶液中晶体的生长与表征。(2)X射线粉末衍射图分析。(3)混层矿物转化系列的形态变化。(4)用PSPC探测器的显微X射线衍射法鉴定矿物。(5)用微机系统测量小晶面的角度.矿物的缺陷、亚结构和显微结构：（1）合成氟云母中Co原子周围的局部结构和固溶体局部结构的EXAFS研究。(2)化合物晶体结构与化学组成的关系。(3)橄榄石固溶体氧化法合成莱呼石。(4)镁辉石岩中辉石共生的矿物学研究.晶体对称性和超晶格。(1)六方钾霞石的多晶型和可能的空间群。（2）同一晶系的非特征轨道。