矿物变形与滑移系的明确限定，对深入解析矿物响应外界应力和温度的内在机制及其流 变弱化过程具有重要意义。随着科技的快速发展及其在地质学领域的深度融合，为精细厘定解析 构造变形行为及其机理提供了契机。以典型的天然变形矿物，如石英与角闪石为例，通过显微构 造分析，并结合利用场发射扫描电镜（FESEM）搭载的电子背散射衍射（EBSD）探头探测的海量矿 物晶格优选取向数据进行综合分析。基于显微构造特征、电子背散射衍射mapping 数据、位错几何 结构类型及其属性，详细阐述了颗粒边界迹线与取向差（轴）分析方法，并揭示出石英和角闪石残 斑在塑性变形过程中，在亚颗粒旋转重结晶机制支配下，石英主要通过｛m｝滑移系、角闪石通过 多滑移系进行应变调节并实现细粒化过程。因此，电子背散射衍射颗粒边界迹线与取向差轴分析 方法结合显微构造特征，不仅能获得矿物变形精细的显微地质过程信息，还可以很好地地阐释从 单颗粒内部到颗粒（或基质）之间的取向演变规律，并有效地限定矿物变形过程中的主导滑移系及 其之相关的变形环境，在显微构造分析中具有重要的地质意义。

It is of great significance to clearly define the mineral deformation and slip system for in-depth analysis of the intrinsic mechanism of mineral response to external stress and temperature, as well as its rheological weakening process. The rapid development of science and technology and its deep integration in the geological field provide an opportunity for detailed analysis of structural deformed behavior and mechanism. This study takes quartz and amphibole in typical naturally deformed rocks as examples. Based on microstructure analysis, the comprehensive analysis was conducted on the massive mineral lattice preferred orientation data accumulated using the Electron Backscatter Diffraction (EBSD) probe mounted on the Field Emission Scanning Electron Microscope (FESEM). Based on microstructural features, EBSD mapping data, dislocation geometry types, and properties, a detailed analysis method for grain boundary trace and misorientation (axes) is elaborated. It is revealed that strain adjustment and grain refinement process of the quartz are mainly through the {m} slip system dominated by subgrain rotational recrystallization mechanism in quartz veins. It is also found that in mylonitic amphibolites, the amphibole porphyroclasts exhibit strong deformation behavior of fine-grained under the dominance of subgrain rotational recrystallization. The amphibole exhibits the interaction of multi-slip systems dominated by the [001] direction through dislocation creep in the banded amphibolites. Therefore, combining the EBSD grain boundary trace with the misorientation axis analysis method and microstructure features can completely count the micro-geological information (composition, shape, grain size, orientation, boundary, strain, etc.) of deformed minerals, and well reveal the orientation evolution law from the grain interior to between grains (or matrix). Moreover, the dominant slip system in the mineral deformation process can be effectively defined and related to the deformation environment, which has important geological significance.