The Earth's magnetic interior

0364944 - GFÚ 2012 RIV NL eng M - Monography Chapter
Kapička, Aleš - Petrovský, Eduard - Jordanova, N. - Podrázský, V.
Magnetic mapping of weakly contaminated areas.
The Earth's magnetic interior. Dordrecht: Springer, 2011 - (Petrovský, E.; Herrero-Bervera, E.; Harinarayana, T.; Ivers, D.), s. 413-425. IAGA special Sopron book series, Volume 1. ISBN 978-94-007-0322-3
R&D Projects: GA ČR GA205/07/0941; GA AV ČR IAA300120701; GA MŠMT LA09015
Institutional research plan: CEZ:AV0Z30120515
Keywords : magnetic mapping * Giant Mountains National Park * topsoil magnetic susceptibility
Subject RIV: DE - Earth Magnetism, Geodesy, Geography

Soil magnetometry has proved to be a helpful auxiliary method for outlining potentially contaminated areas. Magnetic susceptibility of topsoils may reflect concentration of atmospherically deposited anthropogenic iron oxides, which often coexist with harmful substances, such as heavy metals. Magnetic mapping of topsoils yields unambiguous results in areas with high concentration of pollutants and soils developed on iron-poor geologic basement. In this chapter we review the approach and results of magnetic mapping in a relatively clean area, characterized by rather complex topography. Surface measurements of magnetic susceptibility were carried out after previous examination of its vertical distribution in topsoils and complex laboratory measurements of other magnetic parameters as well as scanning electron microscopy observations.
Permanent Link: http://hdl.handle.net/11104/0200302