This monograph is devoted to the study of the evolutionary features of the Precambrian complexes of the North Yenisei Ridge. The paper analyzes the relationships between magmatism and metamorphism and tectonics, their causes, and determining factors. A wide range of modern geological mapping, petrological-geochemical, and isotope-geochronological research methods, including thermomechanical numerical modeling, were used in the study of the objects.