Types of metamorphic rocks: regional metamorphism, contact metamorphism and dynamic metamorphism.

变质岩 类型：区域变质、接触变质和动力变质。

The dynamic metamorphism of disturbed coals and the effect of radical density on coal gas outburst prediction are discussed.

在实验基础上进一步探讨了构造煤的动力变质作用和自由基浓度在煤和瓦斯突出预测中的作用。

The initial collision age is younger than that of the oceanic crust disappearing on the surface, and older than that of the formation of strong deformation and dynamic metamorphism.

碰撞的初始作用时间，应该在所测年龄最新的洋壳消失以后，在强构造变形与动力变质作用发生之前。

The analyses of regional structures show that Lianyunshan granite is associated with dynamic metamorphism shear remelt magmatism of NNE trending convergent strike slip faulting during t 3-j.

区域地质构造解析结果表明，连云山花岗岩与晚三叠世—侏罗纪nne向会聚走滑断层动热变质—剪切重熔型岩浆作用有关。