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在对郯庐断裂带南段３条韧性剪切带中糜棱岩及围岩进行矿物组合、结构构造观察研究的基础上，对长石矿物进行了多项分析测试，发现长石成分及其结构状态参数的变化与构造应力场的构造作用存在明显的对应关系：随剪切变形作用的加强，长石矿物的结构状态参数呈增大趋势，矿物单位晶胞的体积和斜长石中Ｓｉ／Ａｌ比值随之减小；长石的变形指数（Ｉｓｓ）和斜长石中的钙长石分子（Ａｎ）与岩石的变形强度呈明显的正相关关系。这些研究结果为探讨构造变形场中矿物岩石的变形变质作用提供了一种简捷有效的手段。
Based on the observation of mineral assemblages and structural structures of mylonites and surrounding rocks in three ductile shear zones in the southern section of Tanlu Fault Zone, a number of analysis and tests of feldspar minerals were carried out. It was found that the composition of feldspar and its There is a clear correspondence between the change of structural state parameters and the tectonic function of tectonic stress field. With the enhancement of shear deformation, the structural state parameters of feldspar minerals tend to increase. The volume of unit mineral cells and the content of Si / Al ratio decreases; the deformation index (Iss) of feldspar and the calcite (An) in plagioclase have a positive correlation with the deformation strength of rock. These results provide a simple and effective way to discuss the deformation-metamorphism of mineral rocks in the deformation field.