The Archean Pulozero-Polnek-Tundra Enderbite-Granulite Complex of the Central Kola Block: Stages and Formation Conditions (Kola Peninsula)

摘要

The geological studies of granulite-gneiss complexes of the Central Kola Block have a long history [1-5]. Nevertheless, many problems of their evolution, including the age and nature of protoliths, as well as the stages of magmatic and metamorphic processes and their spatiotemporal relationships, remain a matter of debate. The subject of this communication is the characteristic of the age, formation duration, and conditions of the heterogeneous Archean Pulozero-Polnek-Tundra enderbite-granulite complex located in the central part of the Central Kola Block (CKB). The study region incorporates compositionally and genetically different rocks that may be regarded as reference formations for the reconstruction of the geological history of this region (Fig. 1).