Reference section of the upper kazanian substage: Cyclic regularities

Abstract

© 2006-2016 Asian Research Publishing Network (ARPN).In the present paper cyclicity of sedimentary rocks was discussed on the example of so called cycles by Noinskyi discovered in reference section of the Upper Kazanian substage near village Pechishchi (river Volga, near Kazan city, Russia). The analysis is based on layers-thickness distributions and isotope ratios of carbon, oxygen and strontium in carbonate component of section. Cycles by Noinskyi are referred to 1*105 -4*105 years cycles of Earth eCcentricity.