Magnetic structure of polluted soil profiles from Eastern Ukraine |
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Authors: | Maria Jeleńska Agata Hasso-Agopsowicz Magdalena K?dzia?ko-Hofmokl Barbara Kopcewicz Anatoliy Sukhorada Ksenija Bondar Zhanna Matviishina |
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Institution: | 1.Institute of Geophysics,Polish Academy of Sciences,Warszawa,Poland;2.National Taras Shevchenko University of Kyiv,Kyiv,Ukraine;3.Institute of Geography,National Academy of Sciences of Ukraine,Kyiv,Ukraine |
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Abstract: | Our study concerned magnetic properties of soil profiles taken from polluted regions of Eastern Ukraine around the industrial centres Krivyj Rig, Mariupol and Komsomolsk. Soils represent chernozem and podzoluvisol. The low-field magnetic susceptibility shows enhancement in the topsoil caused by contamination by coarse-grain magnetite connected with industrial pollution. Magnetic mineralogy was determined by means of thermal demagnetisation of SIRM, monitoring of susceptibility changes during warming from ?196°C to room temperature and heating to 700°C, and Mössbauer analysis. Granulometry of magnetic particles was investigated by determination of hysteresis parameters, susceptibility, M s , SIRM and ARM ratios and frequency dependence of susceptibility. The chemical parameters, namely pH, organic carbon and iron content in different pedogenic and lithogenic minerals, measured for particular horizons determined pedogenic characteristic of soil profiles. Our study showed that differences in magnetic parameters of non-polluted and polluted soil profiles are not limited to the topsoil, but reach deep layers of the parent material. Industrial pollution promotes formation of the so-called “pedogenic” SP and SD particles in these layers. |
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