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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Verification, analysis and interpretation of gravity anomaly at locality Žírovice in the Cheb Basin
 Vaško, Oskar ; Mrlina, Jan (advisor) ; Blecha, Vratislav (referee)
In the vicinity of the Žírovice village near Františkovy Lázně in West Bohemia there exists a striking gravimetric isometric negative anomaly. Similar gravimetric anomaly near Mýtina, about 17 km to the SE of Žírovice, was interpreted by Mrlina et al. (2009) as a Quaternary volcanic structure of a maar-diatreme type. It is possible that the Žírovice anomaly and some other similar anomalies in the Cheb Basin may also reflect Tertiary or Quaternary volcanic structures. For this reason we performed a detailed gravimetric and magnetometric survey, followed by geophysical modeling. The presence of a volcanic structure was not confirmed by this work, on the contrary, it was rather excluded. The anomaly was interpreted as a sunken tectonic 3D block/graben.
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Seismograph installation and complex analysis of recorded data
 Vaško, Oskar ; Fischer, Tomáš (advisor) ; Hrubcová, Pavla (referee)
This thesis deals with assembly of a school seismograph and a common analysis of recorded data. A garden-gate type seismometer was assembled within the first part of my thesis. The pendulum construction of the seismometer enables recording of a horizontal component of seismic signal. The data analysis involves mainly processing of seismic noise in the buiding of Geologic Section of Faculty of Science in Prague - Albertov. Several eigenfrequencies of the building, which indicate the liability of the construction to be affected by ground motions, were found. As a supplement few recorded earthquakes were identified. The seismic noise analysis led to a finding of a relation between eigenfrequency variation and outdoor temperature in the form of a positive correlation between daily temperature average and eigenfrequency.
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See also: similar author names
1 Vasko, Olha
10 Vasko, Ondrej
10 Váško, Ondřej
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