Some new data on isotope stratigraphy of the permian rocks at the east of the Russian platform

Abstract

© 2006-2015 Asian Research Publishing Network (ARPN). Variations of δ¹³C, δ¹⁸O, and ⁸⁷Sr/⁸⁶Sr in carbonate rocks and shells of the Permian age at the east of the Russian platform have been regarded. Trends of these isotope ratios reflect the global regression and the increasing of regional environments isolation from the open sea and the arid climate challenges.