Twenty Years of the Baltic Regional Stratigraphic Commission (1970–1990)

Activities of the Baltic Regional Stratigraphic Commission (BRSC; previously known in Russian as BRMSK) during 1970–1990 are analysed. The main tasks of the Baltic RSC were to develop stratigraphy of the whole Baltic Region from a theoretical time-rock classification to practical use of the stratigraphic subdivision in geological cartography and compilation of geological maps. The common problems of the regional stratigraphy of the Baltic region are discussed. The most remarkable achievements of the Baltic RSC are elaboration of unified stratigraphic classification with correlation stratigraphic charts of the Baltic region, that were examined and confirmed in 1976. This achievement got next step in 1980-ies when BRSC plays an important role in elaboration of wider correlation charts of the Baltic region with extension to the whole European Russia in the frame of the East-European Craton.