Abstract <p>Bimodal rock complexes from basalt to trachyte and rhyolite are studied in the Late Cenozoic intraplate province of Central and East Asia. Three magma evolution paths are revealed: tholeiitic (Wangtian’e volcano), alkaline (Changbaishan volcano), and highly alkaline (Udokan lava plateau). The study of chemical and isotopic (Sr, Nd, and Pb) composition of rocks of each petrochemical series showed that tholeiitic melt formed by joint melting of suprasubduction-altered lithospheric mantle peridotite with a high amount of eclogite, whereas alkaline melts are products of tholeiitic melt–fertilized mantle peridotite interaction with the formation of pyroxenite and further joint melting of pyroxenite and peridotite in the asthenospheric mantle. The high-alkaline melts formed by melting of peridotite of the metasomatized lithospheric mantle and garnet pyroxenite, which is a result of a metasomatic reaction between a low amount of eclogite melt and peridotite. The evolution of the resulting melts followed three independent scenarios. The tholeiitic magmas of the Wangtian’e volcano evolved first following the Fenner trend of crystallization differentiation, which was subsequently changed to the Bowen type of differentiation leading to the formation of trachytic magmas. The second scenario corresponding to the Bowen trend of fractional crystallization was characteristic of alkaline magmas of the Changbaishan volcano, the strong differentiation of which in a system of shallow magmatic chambers led to the crystallization of trachyte–comendite–pantellerite association. The third scenario of the formation of alkaline trachytes of the Udokan lava plateau involved a combination of the Bowen-type crystallization differentiation and contamination of trachytic melts by the Archean–Proterozoic basement rocks in a system of peripheral magmatic centers.</p>