| Autor: |
Czarnecki, Kazimierz |
| Další autoři: |
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| Jazyk: |
angličtina |
| Předmět: |
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| Druh dokumentu: |
Non-fiction |
| ISSN: |
1214-9705 |
| Abstrakt: |
Abstract: The project was launched in the autumn 2000. The paper pr esents research programme in the context of up-to-now geodynamic studies of the area. Geodetic methods (terrestrial and satellite) and geophysical me thods (gravimetric, seismic sounding, electric resistance profiling) have been applied. The results were compared with whose obtained earlier in the years 1970-80-90 in the same region by the Institutes of the Warsaw Un iversity of Technology. Aim of the project was to find how the construction of the dam on Dunajec-river and creation of the artificial lake have influenced recent activity of the region. Results of precise leveling and trigonometric leveling have proved significant (6-7 mm) vertical depression of the Pieniny Klippen Belt relating adjacent tectonicun its: Magura nape (in North) and Podhale Flysh (in South). Horizontal movements between the control points monitored by laser-distance and sate llite GPS measurements have demonstrated shortening at the northern contact of the Pieniny Klippen Belt and differentiated extension trend at the southern contact. The character of the motion corresponds with changes in the seismic wave veloci ties: increasing in the region of the northern contact and decreasing in the southern contact comparing with those of 1988. Such a behavior can be explained by the increase and decrease of the stresses in the basement resulting probably from the water loading of the artificial lake. Gravimetric measurements have shown inessential increase of gravity in the region of the Pieniny Klippen Belt. The results of geodynamic studies have proved recent activity of the area considerable enough to take it into account in the process of forecasting safety of the dam in Niedzica and the Czorsztyn Lake. For the same reason the studies should be repeated no later then after five years. |
| Databáze: |
Katalog Knihovny AV ČR |
| Externí odkaz: |
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