Fundamentals of Correlation of Late Quaternary Events in Northern Siberia

Recent research and geological mapping have shown problems with officially accepted chronostratigraphic scales for the Pleistocene of Siberia, especially in their uppermost parts. Results of 21st century studies, using latitudinal correlation of late Quaternary events reflected in Upper Pleistocene and uppermost Middle Pleistocene stratigraphic units of glaciated northern Russia, provide a solid basis for updating these scales. This correlation uses stratigraphic marker levels traceable by characteristic paleoclimatic proxies supported by modern geochronometry. This principle levels are represented by descriptions of the rocks of the main temperate and cold stages (thermomers and cryomers in the Russian Stratigraphic Code) with examples of their mass dating in key sections. Summarized, they would support the important parts of the regional chronostratigraphic scales. The most valuable feature of modern chronometry is that it is a statistically robust chronological framework, which is provided by series of datings. It is also important to control correlations using collateral instrumental dating methods. Under discussion herein are four major correlation levels established from sedimentological, paleontological and chronometric proxies and traceable as climatoliths—i.e., paleoclimate-based stages – from Timan to Taimyr. Correlation of underlying strata is largely dependent on Upper Pleistocene data. A correlation table is proposed as an aid in developing new regional stratigraphic schemes.