Zerendinsky pluton-one of the largest and most interesting granitoid massifs of Kazakhstan. The first information about the geological structure of the Zerendinsky massif was obtained in the late XIX century as a result of studies by G. G. Anzimirov, A. A. Krasnopolsky and others. In subsequent years, the works of I. S. Yagovkin, P. I. Preobrazhensky, A. S. Krasilnikov, E. D. Shlygin, P. N. Kropotkin, Y. A. Bilibin and T. V. Bilibina laid the foundations of knowledge about the most general features of the massif structure, its morphology and age. More systematic and detailed studies began in 1949, when the staff of the North Kazakhstan expedition of the MGRI began to compile geological maps 1 :200 000 scale in the territory of Northern Kazakhstan, including within the Zerendinsk massif. Generalization of the wide material obtained in the process of these works and additional studies allowed R. D. Gavrilin to establish three intrusive complexes among granitoids of the Zerendinsky massif. However, on the geologic map compiled by him, the distribution of the isolated varieties is often erroneously indicated, the separation of phases within the complexes is not sufficiently substantiated. This led to the fact that almost all the researchers who studied the Zerendinsky massif later, the dissection scheme proposed by R. D. Gavrilin, was used by almost all the researchers who studied the Zerendinsky massif. D. Gavrilin was rejected. The schemes of the listed authors differ from each other in many details, but are similar in the allocation of only two intrusive complexes ...

As it is known, promising for crystal pegmatites are usually postorogenic, usually interformational, isometric in plan, shallowly eroded massifs of granites of essentially quartz-microcline composition with increased content of volatiles, formed in conditions of shallow depths. Our studies on more than thirty granitoid massifs allow us to refine some of these regional prospecting assumptions ...