Cutmarks were a kind of surface modification marks on bones and teeth(fossils), which were an important aspect of microscopic taphonomy research.

切割痕迹是骨骼和牙齿（化石）上一种常见的表面改造痕迹，也是西方微观埋藏学研究的重要内容。

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Besides, the deformation mechanism of the soil is explained from the microscopic aspect based on the contrast of the undisturbed sample and the failure sample by cyclic triaxial test.

另外，将原状土和循环三轴试验破坏后两种状态的土样作了对比，从微观的角度解释了土体的变形机理。

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