Data On ⁸⁷ Sr/⁸⁶ Sr ratio in reference section of the upper kazanian substage

Abstract

© 2006-2018 Asian Research Publishing Network (ARPN). In the present paper 87 Sr/ 86 Sr ratio values have been presented for the Upper Kazanian regional stratotype section - Pechishchi. The section Pechishchi is unique section formed within the Kazanian palaeosea. The position of received local data on global Phanerozoic evolution 87 Sr/ 86 Sr curve, in common, is satisfactory. Chemostratigraphic points of the Upper Kazanian substage were determined as 87 Sr/ 86 Sr values in decreasing trend up the section to the value 0,70727 in top bed 30 dated ~268,5 Ma by the Phanerozoic evolution 87 Sr/ 86 Sr curve.