Study of manifestation modes of the 3D mobility of crystalline rocks of the basement is a crucial issue in geology. Interest in this issue arose as early as the 1960s (see works by G.D. Azhgirei, L. King, E.I. Patalakha, and H. Stille). However, investigations in this field virtually ceased in the 1970s-1980s. They were revived in the early 1990s in connection with the publication of new facts and theoretical approaches (see, for example, works by M.G. Leonov), as well as new achievements in mesomechanics (see, for example, [1]) and mechanics of granular media (e.g., [2]). Basement rocks, granites included, are undoubtedly subjected to significant structural transformations. Granites make up cold crystalline protrusions after evolution as magmatic bodies. These positive morphological structures are characterized by specific structural properties, which suggest that their exhumation can be attributed to 3D mobility and rheid (from Greek ρεο meaning "to flow") deformation (see works by L. King, M.G. Leonov, and E.V. Patalakha) and such structures can be considered as crystalline protrusions.
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