Results of the Magnetostratigraphic Studies of the Syzran Formation (Paleocene) in the Peschanyi Umyot Section (Saratov, Russia)

Abstract

In this article, the results of the rock-magnetic measurements (magnetic susceptibility and its anisotropy before and after the heating of rocks, magnetic saturation) and paleomagnetic studies of the Lower Syzran Subformation (Paleocene) in the Peschanyi Umyot section (Saratov, Russia) are discussed. The section is composed of weakly magnetic silicites and has the paleomagnetic parameters that are suitable for magnetostratigraphic purposes. The presence of a magnetic zone with predominantly reverse polarity, which is an analogue of either chron C27 or C26 or their combination, was found in the section. The results obtained, along with previously collected data from coeval sections in the south of the Saratov right bank and the city of Saratov, made it possible to draft a magnetostratigraphic chart for the Paleocene of the Volga region, provide a detailed correlation of the Syzran Formation, estimate the duration of the pre-Paleogene erosion, and more accurately date the age of deposits.

Keywords

• magnetostratigraphy
• rock magnetism
• paleocene
• danian
• syzran formation
• lower volga region