Problems of magnetostratigraphy of Pleistocene loess-soil deposits of the South of Ukraine
© V.G. Bakhmutov, D.V. Glavatskiy, 2016
Main principles of magnetostratigraphy, paleomagnetic method of measurement and its applying in Quaternary stratigraphy
is investigated. Results of Matuyama-Brunhes (M/B) boundary detection in loess-soil sediments of Ukraine and other
territories in previous studies are presented. Attention pays on contradictions in determination of M/B boundary position and
episodes within Brunhes chron according to data of different authors. Notably situation is shown on example of Roxolany section in
Western Black Sea region. One of reasons there can be increase of magnetometric equipments precision and quality of measurements
which exclude the bias effects nowadays. Another reason is the contradictions in stratigraphic partition of sections that are located even
within one loess province. We have got instructive data that allow to detect M/B boundary in Roxolany section at 46.6 m depth between
Lubny and Martonosha soil horizons which corresponds to modern point of view of Ukrainian stratigraphers and consists to previous
investigation of Dolynske section (M/B boundary was found in Martonosha horizon). Further complex paleomagnetic studies of
Pleistocene sections of Ukraine will help to review and correlate still conflicting magnetostratigraphic charts.
Key words: magnetostratigraphy, Matuyama-Brunhes boundary, palaeomagnetic method, Pleistocene, loess-soil sequence, Roxolany section.