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Study on the digital information for Earth and Planetary Materials Database(MINC)

地球与行星物质数据库（MINC）数字信息研究

基本信息

批准号：
11640474
负责人：
MIYAMOTO Masamichi
金额：
$ 1.34万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11640474/
关键词：
mineral meteorite lunar sample chemical composition optical image database photo-CD element distribution 自試料

项目摘要

MINC database has been running at Computer Center of Univ. of Tokyo under TOOL-IR system of the old HITAC computer system. We converted our MINC to run for personal computers under Microsoft Windows and Access97.A VBA program has been written to convert old MINC data for the Access system by employing REFCODE for each segment of data. This database includes bibliographic data, crystal data, atomic coordinates, temperature factors, site occupancies information on coordination polyhedra around cations, and chemical compositions of major minerals in meteorites, lunar and terrestrial samples. Several data types can be selected on the Convert Menu. Data search and retrieval can be performed on keyword items, such as Compound name, Mineral names, Chemical Formula, Author, Journal, Issue year, Space group, Compositions (up to 12 oxide wt.% values within the given ranges) and Z. A CD-ROM with converted Access data with VBA application program is available for scientists in cooperative basis.In order to show the locations of the analysis points for chemical compositions of minerals measured by Electron Probe Micro Analysis (EPMA) on the thin sectipn photographs, we tried to establish the best method to obtain photographs of polished thin sections (PTS) of meteorites used for the EPMA method. These photographs are to be used in the above database. A couple of digital cameras have been tested to obtain the best quality photographs on a microscope. We find that a focusing method by the digital camera system is not easy to obtain the best focused photographs.This year we added two digital images in the jpeg format of different sizes (small and large) to be attached to any numerical data of Access97. We can paste photographs of samples of minerals or meteorites to the small frame, and PTS photographs to the large frame.

MINC数据库已在大学计算机中心运行。在旧的HITAC计算机系统的Tool-IR系统下。我们将Minc转换为在Microsoft Windows和Access97下运行的个人计算机。通过对每段数据使用REFCODE，编写了一个VBA程序来转换Access系统的旧Minc数据。该数据库包括书目数据、晶体数据、原子坐标、温度因素、阳离子周围配位多面体的位置占有率信息，以及陨石、月球和陆地样品中主要矿物的化学成分。可以在转换菜单上选择几种数据类型。可以对化合物名称、矿物名称、化学式、作者、期刊、出版年份、空间群、成分(在给定范围内高达12个氧化物重量%值)和Z等关键字项进行数据搜索和检索。科学家可以使用VBA应用程序转换成Access数据的光盘供合作使用。为了在薄片照片上显示电子探针显微分析(EPMA)测量的矿物化学成分分析点的位置，我们试图建立用于EPMA方法的陨石抛光薄片(PTS)照片的最佳方法。这些照片将在上述数据库中使用。为了在显微镜上获得最高质量的照片，已经对几台数码相机进行了测试。我们发现，通过数码相机系统的对焦方法并不容易获得最佳对焦的照片。今年，我们添加了两张不同大小的jpeg格式的数字图像，以附加到Access97的任何数值数据上。我们可以将矿物或陨石样品的照片粘贴到小框架上，将PTS照片粘贴到大框架上。