This volume provides a systematic description of the most important geological structures of Mongolia and discusses the main features of these structures and their interactions. The reconstitution of palaeotectonic zonation of the Caledonian and Hercynian basins is presented and the difference in their geotectonic nature is demonstrated. The main characteristics of magmatism are described for each stage of tectonic development and the evolution of magmatism is considered with reference to lithosphere development. The volume also includes results of an isotopic geochemical study which provides...