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Gravimetrická měření a opakovaná nivelace na polygonu Tetčice / Gravity measurements at Tetčice polygonBitalová, Katarína January 2014 (has links)
This master's thesis deals with measurements of highs and gravity of points polygon located in village Tetčice, through which is crossing a eastern fault of Boskovice furrow. With repeated measurement should be proved effect to high levels of groundwater. Repeated measurements are realized in the range 2 stages. In thesis is in detail described calculation complete Bouguer gravity anomaly and their quantitative interpretation. From the gravimetric of dates is created map of complete Bouguer gravity anomaly and interpretative profile through Boskovice furrow. Interpretative profile has localized fault, whose tectonic activity belong to possible factors level movement in the village. Level measurements meets the requirement of precise levelling. The results of the measurements are compared and discussed with the previous stages of the research.
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Seismic Reflection Survey of the Kentland Impact StructureBrian A Robitaille (20329056) 10 January 2025 (has links)
<p dir="ltr">The Kentland Impact Structure is a heavily eroded complex impact crater located in NW Indiana. Despite numerous previous geophysical investigations, the dimensions of the crater have remained unknown. Based on the findings of those studies, it was noted that a disturbed area reached radially outward 6 – 6.5 km from the central peak of the crater, leading to it being documented as a 12.5 – 13 km diameter crater despite lack of further supporting evidence. We conducted a high-resolution active source seismic reflection survey to delineate the crater’s outer faults and boundaries and refine its diameter estimation. Over 300,000 source-receiver arrival times were picked from the dataset, which formed the foundation for constructing a comprehensive tomographic velocity model. This model was used to guide the structural processing of the reflection profile. To aid in the interpretation of the seismic profile, we utilized a reference borehole located near the survey area to identify the local stratigraphy and geologic reflectors. We also digitized Tudor’s (1971) gravity data, which provided valuable support for our tomographic model and processed seismic profile. The seismic profile and tomography revealed a low velocity, ‘seismically transparent’ central zone that matches up with the edge of the moat identified in the digitized gravity data. The reflectors to the right of the central zone remain undisturbed and the gravity data shows no signs of disturbance beyond the rim of the moat. The work carried out provides extensive evidence that the apparent diameter of the crater is ~8.6 km.</p>
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Měření vertikálního tíhového gradientu na lokalitě TS-73 "Polom", Trutnov - Babí. / Measuring of the Vertical gravity gradient at the locality TS-73 "Polom", Trutnov - BabíPešek, Michal January 2015 (has links)
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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Gravimetrická měření a opakovaná nivelace na polygonu Tetčice / Gravity measurements and repeated leveling at polygon Tetčice.Zajíčková, Katarína January 2017 (has links)
The object of this master´s thesis was levelling and weight measurement of the Tetčice polygon through which passes the fault of the Boskovice furrow. This is the 10th period of levelling and the second period of gravimetric measurement. The theoretical part describes the geological structure of the site, technology of high-precision levelling and technology of gravimetric measurement. The first part of the practical part deals with my own levelling measurement, the calculation of the resulting cambers and heights, consequential comparasion of the results with previous periods and, especially, with evaluation of the vertical movement tendecies. The second part of the practical part deals with my own gravimetric measurement, the calculation of the complete Bouguer gravity anomaly, creation map of complete Bouguer gravity anomaly and as well as evaluation of gravimetric measurement in relation to the results of the previous periods.
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