VYUŽITÍ ELEKTRICKÉ ODPOROVÉ TOMOGRAFIE K VIZUALIZACI VÝPLNÍ HISTORICKÝCH STEZEK
Electric resistivity tomography is suitaible method for geophysical survey of shallow subsurface subjects. We selected this method for identification of historical roads relicts. We choosed four localities for our study in the eastern part of Bohemia and north-western part of Moravia. Historical roads are detected by well defined vegetation features and the geoelectric cross sections were drawn across them. The relicts of historical roads are visible on cross resistivity sections. They manifest themselves as anomalous objects with diff erent resistivity. The resistivity is mostly higher than surroundings due to their higher compaction. They are located in depth about 1 m and create oval bodies.
Baines, D. – Smith, D. G. – Froese, D. G. – Bauman, P. – Nimeck, G. (2002): Electrical resistivity ground imaging (ERGI): a new tool for mapping the lithology and geometry of channel-belts and valley-fi lls. – Sedimentology, 49, 441–449. https://doi.org/10.1046/j.1365-3091.2002.00453.x
Besson, A. – Cousin, I. – Samouëlian, A. – Boizard, H. – Richard, G. (2004): Structural heterogenity of the soil toled layer as characterized by 2D electrical surveying. – Soil and Tillage Research, 79, 239–249. https://doi.org/10.1016/j.still.2004.07.012
Loeke, M. H. (1999): Electrical paging surveys for environmental and engineering studies, A practical guide to 2-D and 3-D surveys. – Penang, 57 str.
Matys Grygar, T. – Nováková, T. – Bábek, O. – Elznicová, N. – Vadinová, J. (2013): Regional contamination signal of heavy metals in sediments of the Jizera River, Czech Republic: are fl oodplains reliable environmental archives of diff use pollution? – Science of the Total Environment, in print.
Milsom, J. (2003): Field geophysics, third edition. – Wiley, 249 pp.
Tsokas, G. N. – Tsourlos, P. I. – Papadopoulos, N. (2009): Electrical resistivity tomography: A flexible technique in solving problems of archeological research. – In: Campana, S. – Piro, S. (Eds): Seeing the unseen. Geophysics and landscape archeology, 83–126, Taylor & Francis.
Sass, O. – Bell, R. – Glade, T. (2008): Comparison of GPR, 2D-resistivity and traditional techniques for the subsurface exploration of the Öschingen landslide, Swabian Alb (Germany). – Geomorphology, 93, 89–103. https://doi.org/10.1016/j.geomorph.2006.12.019