First results of petromagnetic study at the Kulbulak site

Duringfield season of2017, 70 soil samples were collected at the Kulbulak site to measure the volumetric magnetic susceptibility, which characterizes the content in the sediments of ferromagnetic (sensu lato) particles resulting from soil formation processes. Sampling was performed for layers 11-24. The magnitude of the magnetic susceptibility in layers 12-15 remains constant that indicates fairly similar conditions for their formation. The presence of small superparamagnetic (SP) particles is recorded at the levels of layer 12.2 and 15 that apparently are the rudiments of the embryonic paleosols. The zone of increased concentration of SP particles in layer 12.1 and layer 11 apparently marks the presence of immature buried paleosol.