Microstructural Analysis and EBSD Applications in Earth Sciences

该项目支持学生和早期职业研究人员参加将在旧金山弗朗西斯科州立大学举办的短期课程“微观结构分析和EBSD在地球科学中的应用”。短期课程将简要介绍一种独特的数学方法来分析积分X射线，中子或同步加速器衍射极强度数据，以及电子背散射衍射（EBSD），冰织物分析仪或光学通用阶段的个人取向数据，并与Windows/Mac/Linux系统应用免费和开放的MATLAB工具箱MTEX纹理分析的实践练习。具体地，取向分布函数及其属性的估计，例如，作为谐波系数、体积部分、纹理指数、熵、各向异性属性的计算。从不同种类的数据和颗粒重建EBSD数据将包括在内。MTEX研讨会在美国从未举办过。研讨会参加者将在专家指导下带着一些初步的实践成果离开研讨会，并将能够立即开始使用MTEX。定量显微结构分析在地球科学的许多领域（包括构造地质学、实验岩石变形和地震学）中越来越重要。特别是EBSD的广泛可用性，为研究人员提供了更大，更复杂的数据进行分析。对下一代进行这种分析所需的软件工具培训至关重要。

This project supports participation of students and early career researchers in a short course "Microstructural Analysis and EBSD Applications in Earth Sciences" to be held at San Francisco State University. The short course will provide a brief introduction to a unique mathematical approach to analyze integral X-ray, neutron or synchrotron diffraction pole intensity data as well as individual orientation data from electron backscatter diffraction (EBSD), Ice Fabric Analyzer or optical universal stage, and hands-on exercises with Windows/Mac/Linux systems applying the free and open MATLAB toolbox MTEX for texture analysis. In particular, estimation of an orientation distribution function and its properties as harmonic coefficients, volume portions, texture index, entropy, calculation of anisotropic properties, for example,. from the different kinds of data and grain reconstruction from EBSD data will be included. An MTEX workshop has never been offered in the U.S. Workshop participants will leave the workshop with some preliminary results from practical sessions under expert instruction and will be able to immediately start using MTEX.Quantitative microstructural analysis is an increasingly important aspect of many fields in the earth sciences including structural geology, experimental rock deformation, and seismology, for example. The wider availability of EBSD, in particular, presents researchers with much larger and more complex data to analyze. Training the next generation in the software tools necessary for such analysis is critical.