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郯庐断裂中段鲁中基底的韧性变形带可分为两类：（１）北东向韧性变形带，以发育中深层次的构造片麻岩为特征，形成于早中元古代花岗质岩体（２４８８Ｍａ）侵位之前；（２）北北东向韧性变形带，以中浅层次糜棱岩为特征，形成于晋宁期（９４１Ｍａ）。文中对以上两类韧性变形带的形成机制和时代进行了初步讨论。
The ductile deformation zones of the Luzhong basement in the middle section of the Tanlu fault can be divided into two types: (1) the NE-trending ductile deformation zone characterized by the development of mid-deep structural gneisses formed in the early Mesozoic granitic rocks (2488Ma) prior to emplacement; (2) NE-trending ductile deformation zone, characterized by medium and shallow mylonites, formed during the Jinning period (941 Ma). The formation mechanism and age of the above two types of ductile deformation zone are discussed in this paper.