深部岩石力学性质及其在大陆构造变形过程研究中的作用

MECHANICAL PROPERTIES OF DEEP EARTH ROCKS AND THEIR ROLES IN THE INVESTIGATION OF CONTINENTAL DEFORMATION PROCESSES

在阐述了与深部岩石力学性质相关的岩石流变学基本模型的基础上,探讨了深部岩石力学性质对温度、压力和岩石化学组分等因素的依赖关系。根据目前对深部岩石力学性质的认识,讨论了岩石流变学在研究大陆构造变形过程中所起的重要作用。有关研究结果表明:在运用理论分析和数值模拟方法揭示大陆岩石圈中变形的动力学机制时,合理的选用深部岩石的流变学模型是必须考虑的一个重要因素。

On the basis of dealing with the fundamental models of the rock rheology associated with the mechanical properties of deep Earth rocks, the dependence of the mechanical properties of the deep Earth rocks on the temperature, pressure, chemical constitutes of the rocks and other factors is investigated in this paper. From the resent understanding to the mechanical properties of deep Earth rocks, the important role played by the rock rheology in the investigation of continental deformation processes is discussed in detail. The related research results indicate that in the case of using both the theoretical method and numerical simulation method to reveal the dynamic mechanism of the continental lithospheric deformation, the reasonable selection of the rheological model for the deep Earth rock is an important factor that must be taken into account.