This article presents the results of detailed study of geologic structure and composition of Munilkan massif of the Main batholith belt of Verkhoyansk-Kolyma mesozoides (Tas-Khayakhtakh Ridge).Granites include numerous xenoblocks of gabbro, dolerites and subvolcanic granites they are intruded by fissure EDTA bodies and dikes of leucogranites-alaskites and trachybasalts-trachydolerites and have neutral ratio with gabbro-diorites, diorites and monzonites, which Toddler Hats were formed during interaction of basite and granite magma.Igneous activity occurred at some stages, from Oxfordian to the end of the Early Cretaceous (157-119 Ma).Composition parameters of magmatic rocks correspond to formation of early derivatives in island-arc conditions, late derivatives - in post-collisional and intraplate conditions, that is covers the entire cycle of geologic development of Verkhoyansk-Kolyma mesozoides.