Analysis of mechanical characteristics of vertical transfer of magma in deep deformable rock

Some simplified models are studied and discussed about the vertical movement and segregation of asthenosphere rock and the residue of partially molten magma under the guidance of the hypothesis of creep flow of mantle and alternation of thermal energy concentration-diffusion, which belongs to the activation tectonics theory (the DIWA theory). Firstly, some assumptions are made to get a kind of simplified dynamical formula according to the basic principles of rheology in a porous medium. Secondly, the formulae are nondimensionalized by introducing some parameters; and the dimensionless models are studied and discussed in detail. Then according to the results of the models, it is only in some regions that the deformation of the rock media could affect the transportation of partially molten magma, in which the dynamical characteristics of models should be adopted by modified Darcy's law, and beyond which the results of the transportation using classical Darcy's law are accurate. All these conclusions show why the metallogenetic mass could move upward from the asthenosphere to the earth's surface, which is corresponding to the geology background, and magma transport might be of importance for the further research of rock creep and the dynamics of ore-forming processes.EI0115-202