Elle: the numerical simulation of metamorphic and deformation microstructures

摘要: Abstract We present a generalised framework for the numerical simulation of evolution rock microstructures during deformation and metamorphism. This approach is based upon data structure that describes polycrystalline material using two-dimensional network nodes connecting boundaries allows micro-processes to be analysed at range scales. The may possess attributes position, topology chemistry; polygonal domains defined by these mineralogy, rheology lattice orientation. represent complex behaviour deforming metamorphosing rocks grain scale as interaction set locally-defined driving forces micro-processes, calculated small time steps. A central program controls extrinsic variables such temperature defines history or metamorphic processes. then passes distinct process algorithms, which interact with this structure, both it determine local values forces, altering simulate progress process. outline function different aspects modelling task, provide simple examples showing porphyroblast growth static growth, describe we have developed enables us handle multi-process simulations.