Магнітна сприйнятливість ґрунту в околицях Придеснянської воднобалансової станції

Soil cover is one of the main sources of low-amplitude anomalies of the local magnetic field during high-precision detailed magnetic surveying. At the same time, the influence of the soil has certain landscape and lithological features and is of a regional nature, which requires a cycle of regional studies. The method of work is the study of the peculiarities of the spatial and profile distribution of the magnetic susceptibility of the soil as one of the main anomaly-forming factors in the conditions of the complicated topography of the Left Bank Polissia of Ukraine. For this, the study of magnetic susceptibility of soil sections in various landscape and hydrological conditions applied. Methods of determining the studied indicators: specific magnetic susceptibility - using a MS 2B magnetometer; volumetric magnetic susceptibility with a KM-7 capometer. The leading role of the properties of the geological rock in the formation of the magnetic properties of the soil profile has been established. The maximum values of magnetic susceptibility are characteristic of the watershed plateau and the upper parts of the streams. A decrease of up to 50 % noted on the eroded soils of the middle parts of the beams. The maximum reduction of MS is associated with the concentration of moisture and a high level of groundwater – the bottom part of the beams, local non-drainage areas.