Аннотация:The interconnected combined processes ofmetamorphic and metasomatic evolution of crustal maficeclogites are considered in two high-pressure metamorphiccomplexes – in the Maksyutov eclogite-glaucophane schistcomplex (Southern Urals) and in the Atbashi unite(Southern Tien Shan). Thermobaric processes in theseterrane determine changes in the PT parameters ofmetamorphism, and lead to the formation of contrastingseries of rocks. Such series are formed as a result oftectonic intrusion (mélange) of high-pressure eclogiteinclusions (individual blocks, boudins, interlayers andlenses) into the thickness of a weakly metamorphosed hostmatrix and their further joint (coherent) development. Atthe regressive stage of development of the complexes, theprocesses of the petrochemical (metasomatic) directionjoin the thermobaric processes, as a result of which thebulk chemical composition of the rocks changes. The firstarticle from couple cycle deals with materials on therelatively deep Maksyutov complex. The second paperpresents the results of the study of the Atbashi complexformed at moderate pressure.
