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胶南造山带经历了长期韧性变形作用的改造，形成以糜棱岩和变晶糜棱岩为代表的构造岩。两类构造岩形成的温压条件不同，岩石化学成分的变异特点及变异机制也存在显著的差异。通过对比构造岩变形前后岩石化学成分的变异特征，糜棱岩类构造岩的成分变异主要由体积的亏损引起（亏损率达５０％～６０％）；变晶糜棱岩类构造岩的成分变异除由较大的体积亏损（亏损率达５７．１％～７０％）之外，尚存在大量的渗流流体作用。
The Jiaonan orogenic belt underwent a long-term transformation of ductile deformation to form tectonic rocks typified by mylonites and metamorphic mylonites. Two types of tectonic rocks formed different temperature and pressure conditions, and the variation characteristics of rock chemical composition and variation mechanisms also have significant differences. By comparing the variation characteristics of petrochemical composition before and after tectonic deformation, the variation of composition of mylonitic tectonic rocks is mainly caused by the volume loss (loss rate of 50% -60%); the compositional variation of mylonite tectonic rocks In addition to the larger volume loss (loss rate of 57.1% ~ 70%), there is still a lot of seepage fluid effect.