Magnetic anomalies of forest soils in the Upper Silesia–Northern Moravia region

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• 作者：Tadeusz Magiera ; Ales Kapič ; ka ; Eduard Petrovský ; Zygmunt Strzyszcz ; Hana Fialová ; Marzena Rachwał
• 关键词：Magnetic susceptibility ; Topsoil profiles ; Heavy metals ; Iron oxides
• 刊名：Environmental Pollution
• 出版年：2008
• 出版时间：December 2008
• 年：2008
• 卷：156
• 期：3
• 页码：618-627
• 全文大小：788 K

文摘

Previous investigations revealed a strong magnetic anomaly due to soil magnetic enhancement in the industrialized cross-border area of Upper Silesia (Poland) and Northern Moravia (Czech Republic). Since industrial and urban dusts contain magnetic particles, this soil magnetic enhancement is assumed to be of anthropogenic origin, caused by a high concentration of atmospherically deposited magnetic particles, accumulated in topsoil layers. This assumption is proved by investigations of vertical profiles of magnetic susceptibility along a transect crossing the border area of the two countries. The results show that the population of magnetic minerals in the organic horizon is different from that in the mineral horizons. The vertical distribution of magnetic susceptibility and thermomagnetic analysis suggests negligible lithogenic contribution. The observed relationship between magnetic susceptibility and some heavy metals, confirmed by micromorphological observations and microchemical analysis of magnetic particles separated from the organic horizons of forest topsoil, has proved the usefulness of soil magnetometry for pollution study.