Naslov
Basic Role of the Electrical Tomography in the Exploration of Building Stones

Autori
Šumanovac, Franjo ; Kolar, Saša ; Orešković, Jasna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Near Surface Geoscience 2015, Torino / - , 2015, 1-5

Skup
Near Surface Geoscience 2015 - 21st European Meeting of Environmental and Engineering Geophysics

Mjesto i datum
Torino, Italija, 06.09.2015. - 10.09.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
electrical tomography; quarry explorations; magnetic method

Sažetak
In the framework of exploration of building stones electrical tomography is an essential method. It is particularly effective in three types of geological models: boundary between carbonates and clastic rocks (1), boundary between rather compact igneous rocks and clastites (2) and fault and fracture zones in hard rocks (3). These are the most common models in surveying of building stones and great potentials of electrical tomography are presented on examples of two quarry explorations. Model 1 and model 3 are shown on Vojnovec quarry where electrical tomography enabled precise definition of boundaries between carbonates and clastic rocks, as well as determination of margins of fractured zone within carbonates. Model 2 is presented by Hruškovec quarry where diabase bodies are in contact with clastites. Since high resistivities similar to the resistivity of diabase, also may be caused by dry sandstones magnetic method has been applied to distinguish between rocks of similar resistivity but different magnetic properties. In one case magnetic method was helpful in determination of the edge of diabase bodies, whereas in the second case the edge could not be determined due to changes in magnetic properties of diabases. Electrical tomography, in both cases, enabled determination of reliable twodimensional model.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA