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


rock magnetism

Magnetostratigraphic and micropaleontological data from the Campanian–Mastrichtian section near Levashi Village (Dagestan)

Preserved oriented samples from the reference Campanian–Maastrichtian section near Levashi village (Dagestan), sampled in 1990 by the staff of the SSU Research Institute of Geology, were studied in terms of rock magnetism and paleomagnetism. Benthic foraminiferal assemblages and calcareous microproblematica (gilianelles) were identified in selected samples, and layers with fauna were distinguished. Thin sections were made from a number of samples for microscopic examination of rocks.

Cyclostratigraphic Analysis of the Rock Magnetic Data on Maastrichtian of the Bodrak River (SW Crimea)

Measurements of mass magnetic susceptibility of 2 232 samples, collected in Takma and Chakhmakhly sections (SW Crimea, Bodrak river) through every 20 cm of thickness were conducted. The cycles, supposedly corresponding to the periods of long and short eccentricities of Earth orbit and its axis obliquity were detected by Fourier transform and wavelet analysis of obtained data. The average sedimentation rate (11.7 cm/kyr) was calculated.