Izvestiya of Saratov University.
ISSN 1819-7663 (Print)
ISSN 2542-1921 (Online)


Прикаспий

Petromagnetic Indicators of Layers with High Concentration of Cosmogenic Substance in Maastrichtian of Volga Region and Cis-Caspian Region

The level with anomalous high values of natural remanent magnetization and Koenigsberger ratios was identify in the Upper Maastrichtian of Vol’sk depression (Saratov Volga Region). The microprobe studies of samples from this layer registered elevated concentrations of microparticles of iron, nickel, intermetallics and magnetite spherules of cosmic genesis. Similar petromagnetic anomaly was detect in the uppermost of Maastrichtian in the South Cis-Caspian (Aktolagay Plateau, Kazakhstan).

Definition of Paleointensity in the Eocene Section Plateau Aktolagay

There was explored the behavior of Rns parameter (relation between the module of natural remaining magnetization after temperature 250° to the magnetization of saturation) in the interval of Ypresian in Aktolagay plateau (West Kazakhstan). The parameters were recounted to the values of H/H0 (relation between paleointensity to the intensity of modern magnetic field).