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Use of GNSS Methods in Mapping Regional Tectonic Structures
Švábenský, Otakar ; Pospíšil, Lubomil
The article is devoted to the analysis and interpretation of geoscientific data in the area around the Rodl-Kaplice-Blanice (RKB) fault system. The RKB system, which has been active since the Proterozoic, appears as a significant interface in geological and geophysical maps. According to the occurrences of earthquake foci, the southern (central) part is also a seismically active zone. DPZ, GNSS, geophysical and geomorphological data were used to assess possible recent activity, with the main output in the form of a recent-kinematic model. The results show that the blocks on opposite sides of the RKB show diametrically different, opposite horizontal movement tendencies, the intensity of which increases towards the system of the South Bohemian Cretaceous-Tertiary basins.
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Measuring of the Vertical gravity gradient at the locality TS-73 "Polom", Trutnov - Babí
Pešek, Michal ; Weigel, Josef (referee) ; Pospíšil, Lubomil (advisor)
This master´s thesis deals with the determination of vertical gravity gradient in the shaft below the infantry bunker TS - 73 "Polom" located in village Babí. After performing position, elevation and gravity measurements detailed points, representing the two vertical profiles were calculated gravity, vertical gravity gradient, block densities ang gravity anomalies depending on the depth. Other outputs work as a topographic map and a map of full Bouguer anomalies for the wider area of the location and interpretive geologic profile.
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Evaluation of physical fields in a landscape locality
Jílek, Michael ; Králík, Martin (referee) ; Smital, Lukáš (advisor)
The thesis is focused on gathering of theoretical backgrounds for geomagnetic measurements, measurement of electromagnetic and radiometric quantities in a natural locality, and subsequent evaluation of the obtained results from the point of view of their interrelations and in the context of hygienic regulations. All the theoretical backgrounds of each field are assigned to the measurement methodology and appropriate measuring technique, selected according to information from available sources. Appropriate instruments, landscape location, measurements were made, the results were evaluated and interpreted. The result is graphical output in the QGIS geographic information system.
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Evaluation of physical fields in scenic area
Jílek, Michael ; Smital, Lukáš (referee) ; Rozman, Jiří (advisor)
The thesis is focused on gathering of theoretical backgrounds for geomagnetic measurements, measurement of electromagnetic and radiometric quantities in a natural locality, and subsequent evaluation of the obtained results from the point of view of their interrelations and in the context of hygienic regulations. All the theoretical backgrounds of each field are assigned to the measurement methodology and appropriate measuring technique, selected according to information from available sources. Appropriate instruments, landscape location, measurements were made, the results were evaluated and interpreted. The result is graphical output in the QGIS geographic information system.
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Map of geodynamic phenomena in the Slanské vrchy Mts., and surrounding.
Lazoríková, Monika ; Weigel, Josef (referee) ; Pospíšil, Lubomil (advisor)
The aim of the diploma thesis has been evaluation of available geodetic, geomorphological, geological and geophysical data and other possible map data, which are related to the motion and geodynamic properties in this part of Western Carpathians. The purpose has been also to evaluate possible kinematic relations and design appropriate areas for further GNSS monitoring. Especially Slanské vrchy area is located in the zone where there are no supporting GNSS points, despite the area is situated on the main tectonic breaks of eastern Slovakia. The results and all supporting materials have been processed in the GIS program and summarized in the basic geodynamic map of Slanské vrchy and the surroundings.
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Volcanic rocks and possibilities of their research using geophysical methods
Votrubcová, Kristýna ; Valenta, Jan (advisor) ; Vlček, Josef (referee)
5 Abstrakt (EN) The research focuses on the application of geophysical methods and subsequent data processing for the prospecting of igneous rocks and the search for volcanic structures. The literature review summarizes the physical and petrological foundations of various physical methods that can be utilized in the search for volcanic rocks, and discusses their most appropriate uses. The greatest emphasis is placed on the method of magnetometry, which is significant in identifying volcanoes. The work also explores the use of geoelectrical and seismic methods, radiometry, and gravimetry. In the practical section, geophysical measurements were conducted in the field to map the extent of the Tertiary volcano and other geological structures in the Elbe Sandstone Mountains. The extent of the volcanic body was successfully mapped using magnetic measurements. The results of the measured Electrical Resistivity Tomography (ERT) profile corresponded to the extent of the volcanite body and showed that the body was significantly fractured. Other findings include the mapping of a fault zone, to which the volcanic body ascend could be linked, and the mapping of another fault zone in a nearby valley, which is assumed to have a fault character. Key words: igneous rocks, volcanism, geophysics, magnetometry, VLF, ERT
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Geophysical prospection of Early Medieval settlements
Marešová, Barbora ; Valenta, Jan (advisor) ; Vošvrdová, Eliška (referee)
This bachelor thesis focuses on geophysical prospecting within non-destructive archaeology. To successfully carry out a geophysical survey on an archaeological site, it is important to understand the physical principles of the methods used as well as the history and characteristics of the site. This thesis aims to provide a comprehensive overview of this problem. The literature review begins with an explanation of the physical parameters that form the basis of geophysical prospecting, followed by an overview of the methods used for geophysical surveys. Finally, a practical example of geophysical prospecting is presented on the Praha-Královice site. The methodology, data processing, and interpretation of the results are also described in detail. The exploratory part of the thesis discusses how this prospecting led to the discovery of new information about the site, including the position and size of the medieval rectory. Additionally, this thesis provides a comparison of this prospecting with other published geophysical surveys of archaeological sites. Key words: geophysics, electromagnetic induction measurements, GPR, early Middle Ages, archaeology, Praha-Královice, rectory
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Application of electric resistivity tomography in assessing odl gold mines Kometa
ŠEFČÍK, David
The aim of this diploma thesis is to test the possibility of using the geoelectrical resistivity tomography in tracing mining areas within the territory of the medieval gold-mines "Na Kometě" in the Písek Mountains and subsequently, based on the measured data, to estimate the simplified characteristics of the bedrock to a depth of 16 metres. The student will get acquainted with the basic geophysical instrument ARES as well as the basic interpretation of the data. The diploma thesis deals with basic geophysical instruments as well as with the occurrence of gold in the territory of South Bohemia. The submitted thesis has 129 pages and is divided into ten chapters.
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Current state of geophysical research and surveys in the Czech Republic
Kaláb, Zdeněk
The basic research of the Earth's physical fields in the Czech Republic is solved by the research infrastructure CzechGeo/EPOS, which is a comprehensive system for observing geophysical fields operated by geoscience institutions in the Czech Republic. CzechGeo/EPOS is distributed multilayer research infrastructure based on acquisition and distribution of data from geophysical monitoring networks. In the area of exploratory geophysical works, the survey of potential sites for the deep repository of nuclear waste is probably the biggest topic. This is not only a survey of potential sites, but also activities at the Bukov underground laboratory. One of the major challenges facing applied geophysics in the near future is to participate in surveys for the high-speed railway line. Applications of geophysical methods are increasingly penetrating also other fields.\n
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Geophysical Survey in Vinicity of the Church Stětí sv. Jana Křtitele in Dolní Chabry
Buneš, Josef ; Dohnal, Jiří (advisor) ; Kněz, Jaroslav (referee)
v Abstract The diploma thesis "Geophysical survey of the surroundings of the Church of the Beheading of St. John the Baptist in Dolní Chabry" describes the realized geophysical measurements at an important archaeological locality and interprets its results. The locality is approached from the historical, geographical and geological point of view. There are described physical properties of rocks, basic principles of geophysical methods used and methodology of field work and data processing. Finally, the measurement results are interpreted. The following methods were used for the research: symmetric resistivity profiling, dipole electromagnetic profiling, electrical resistivity tomography and seismic rafraction. Several anomalies corresponding to already known objects were identified and localized in the locality, another part of captured anomalies corresponds to previously unknown buried archaeological objects. Keywords: archeology, geophysics, archeogeophysics, Dolní Chabry, Church of the Beheading of St. John the Baptist
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