THE ROLE OF ECO-GEOLOGICAL UNITS (ECO-STRATONS) IN THE CONSTRUCTION OF STRATIGRAPHIC SCALES

Abstract

Alternative, fit in with the ideas of Einstein, it is to construct a stratigraphic scales based on the stages of development of the entire biome of a sedimentation basin. N. Andrussov has developed such a scheme for the Ponto-Caspian Neogene, A. Ivanov — for Carboniferous of Central Russia, R. Hecker for Devonian of Central Russia and Paleogene of the Fergana. Paleozoologists used this method very rarely. Paleobotanists, on the contrary, went namely this way. The most important achievement was the establishment of the stratigraphic scheme of the Carboniferous — Permian of the Kuznetsk basin, which was soon extended to the entire North temperate zone of the Earth: from Pechora river to the Far East, and from Taimyr peninsula to Mongolia. Based on the horizons of this scheme eco-geological units (stratons) can be distinguished. In non-marine deposits of Carboniferous — Jurassic of Northern and Central Eurasia, 13 eco-stratons have been selected. Ecozones Elatocladus linearis ... Cornia vosini, Quadrocladus pachyphyllum ... Echinolimnadia mattoxi and Quadrocladus pachyphyllum ... Prilukiella (?) tomiensis are described in accordance with the requirements of the Russian Stratigraphic Code. The volume of eco-zones usually comprises one or two series. But in the upper Permian and lower Triassic it is a part of the stage. This reflects the uneven pace of the historical development of the organisms. In the Stratigraphic code of Russia ecozone is considered as a local or provincial biostraton. But eco-stratons can be regional and planetary. A set of the regional eco-stratigraphic scales forms a complete variant of the stratigraphic scale of the Earth. What is now called a General scale, it is a simplified version of it.