20 research outputs found
Day plots of bacterial magnetite from sediments of Shira lake (Khakassia, Russia)
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
Day plots of bacterial magnetite from sediments of Shira lake (Khakassia, Russia)
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