Day Plots of Bacterial Magnetite from Sediments of Shira Lake (Khakassia, Russia)
Semenov, Sergey V.
Balaev, Dmitry A.
Shaykhutdinov, Kirill A.
Rogozin, Denis Yu.
Институт инженерной физики и радиоэлектроники
Кафедра общей физики
Journal Name:Journal of Siberian Federal University - Mathematics and Physics
Journal Quartile in Scopus:Q4
Bibliographic Citation:Semenov, Sergey V. Day Plots of Bacterial Magnetite from Sediments of Shira Lake (Khakassia, Russia) [Текст] / Sergey V. Semenov, Dmitry A. Balaev, Kirill A. Shaykhutdinov, Denis Yu. Rogozin // Journal of Siberian Federal University - Mathematics and Physics. — 2017. — Т. 10 (№ 2). — С. 252-256
The domain state of magnetite detected in sediments of Shira lake (Khakassia, Russia) was examined by means of magnetic hysteresis. Analysis of experimental data obtained on samples from diﬀerent parts of bottom sediment cores in terms of Day plots allowed us to conclude that magnetite particles are in the pseudo-single-domain state. This indicates respectively small size of magnetite particles (< 100 nm) and reveals their bacterial origin. Biogenic magnetite buried in the bottom sediments can indicate the climatic changes in the Shira lake level in the Late Holocene