Development of polarized laser scanning microscope and its use to quantitative analysis of rock textures

偏光激光扫描显微镜的研制及其在岩石结构定量分析中的应用

• 批准号: 09440173
• 负责人: SHIMIZU Ichiro
• 金额: $ 9.54万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09440173/
• 关键词: laser scanning microscope; image processing; rock texture; recrystallization; particle analysis; confocal image; fluorescence; polarized image; レーザー共焦点顕微鏡; 偏光観察; 蛍光; 粒子解析; 分光顕微鏡

New techniques of quantitative analysis of rock textures using a laser scanning microscope (LSM) are proposed. A LSM equipped with polarized filters was used to capture various kinds of digital images of rock texture. Confocal images of reflected laser beams were used to analyze surface topography of rock specimens. Cracks and grain boundaries in rocks were cleary visualized and analyzed by digital image processing techniques. Polarized images of rock textures under blue (B=488 nm), green (G=568 nm) and red (R=633 nm) laser beams were superimposed to construct color (RGB) images. Optical properties of minerals such as reflectance and retardation are accurately measured by the LSM.Spectroscopic imaging of rock texture enable us to viusalize the distribution of a mineral under considerlation. Organic materials in sedimentary rocks are detected in intensity of map of fluorescence.

提出了用激光扫描显微镜（LSM）定量分析岩石结构的新技术。利用带偏振滤光片的LSM对岩石纹理进行了多种数字图像的采集。利用反射激光束的共聚焦图像对岩石试样表面形貌进行了分析。利用数字图像处理技术对岩石中的裂纹和晶界进行了清晰的可视化和分析。将岩石纹理在蓝色（B=488 nm）、绿色（G=568 nm）和红色（R=633 nm）激光束下的偏振图像叠加，构建彩色（RGB）图像。利用LSM精确测量了矿物的光学性质，如反射率和延迟。岩石结构的光谱成像使我们能够可视化所考虑的矿物的分布。用荧光图谱的强度检测沉积岩中的有机物。

项目成果

Shimizu, I.: "Stress and temperature dependence of recrystallized grain size" Geophys.Res.Lett.25. 5237-4240 (1998)

Shimizu, I.：“再结晶晶粒尺寸的应力和温度依赖性”Geophys.Res.Lett.25。

Tsutsumi,A & Shimamoto,T.: "High-velosity frictional property of gabrro." Geophys.Res.Lett.24. 699-702 (1997)

堤，A

Shimizu,I.: "A stochastic model of grain size distribution during dynamic recrystallization"Philos.Mag.. 79. 1217-1231 (1999)

Shimizu,I.：“动态再结晶过程中晶粒尺寸分布的随机模型”Philos.Mag.. 79. 1217-1231 (1999)

Shimizu, I.: "Stress and temperature dependence of recrystallized grain size : A subgrain misorientation model"Geophys.Res.Lett.. 25. 4237-4240 (1998)

Shimizu, I.：“再结晶晶粒尺寸的应力和温度依赖性：亚晶粒取向错误模型”Geophys.Res.Lett.. 25. 4237-4240 (1998)

Shimizu,I.: "Stress and temperature dependence of recrystallized grain size:A subgrain misorientation model"Geophys.Res.Lett.. 25. 4237-4240 (1998)

Shimizu,I.：“再结晶晶粒尺寸的应力和温度依赖性：亚晶粒取向错误模型”Geophys.Res.Lett.. 25. 4237-4240 (1998)