Ewolucja poglądów na kolerację i nomenklaturę stratygraficzną osadów syluru i najniższego dewonu w Polsce

Przedstawiono schemat rozwoju badan stratygraficznych syluru Polski ze szczegolnym uwzglednieniem nomenklatury stratygraficznej. Porownano postep badan, związany z licznymi wierceniami na platformie wschodnioeuropejskiej, z opracowaniami starszymi dotyczącymi wylącznie odsloniec. Przedstawiono mozliwości konstruowania roznego typu map geologicznych oraz interpretacje rozwoju Prototetydy wzdluz szelfu Fennosarmacji. EVOLUTION OF VIEWS ON CORRELATION AND STRATIGRAPHIC NOMENCLATURE OF THE SILURIAN AND THE LOWERMOST DEVONIAN OF POLAND The stages in studies on subdivision of Silurian and Silurian-Devonian junction beds in Polish part of the slope of the East-European Platform and the neighbouring areas are discussed. The fundamental works on the Silurian of Podolia, Volhynia, as well as the Gory Świetokrzyskie Mts. Sudety Mts and the forefield of the Carpathians are the starting point for the analysis of evolution of the views on regional stratigraphy. The correlations show that Silurian rocks of the Polish part of the East-European Platform and the Łysogory region display similar development as they have originated in the same environment of the Prototethys Ocean paleoshelf and, therefore, they have been genetically related to the evolution of the Fennosarmatian megacontinent. This century witnessed marked developments in biostratigraphy, sedimentology and tectonics as well as in classification and nomenclature used for these deposits, which is reflected by a new stratigraphic nomenclature of Upper Silurian and Lower Devonian stages, used by the authors. The idea of regional nomenclature was put forward for the case of the Silurian of Podolia by W. Szajnocha and subsequently accepted and widened there by R. Kozlowski, becoming the subject of intense studies of Jan Czarnocki in the Gory Świetokrzyskie Mts, of the present authors in the Platform areas, and remaining as a main point in further studies on the Polish Paleozoic. The progress in regional and biostratigraphic studies gave further evidence for specific character of the Silurian of Poland and the differences in regard to classic British sections and, therefore, to generally accepted stratigraphic subdivisions. This is the reason why new regional-stratigraphic names such as the Skala, Borszczow, Wydryszow, Rzepin, Siedlce, Podlasie, Czortkow, Bostow, Ciepielow, etc., has have been proposed for strata younger than the Ludlovian of England and older than the Gedinnian, entering the Polish geological literature (Tables 1 and 2).