Podrobnosti záznamu

    Recent crustal movements in Late Tertiary tectonic zones of the Sudetes and Northern Sudetic Foreland, SW Poland
Údaj o odpovědnosti
    Stefan Cacoń, Stanislaw Dyjor
    Cacoń, Stefan
    Dyjor, Stanislaw
Zdrojový dokument - seriál
    Folia quaternaria
    Vol. 73
    p. 31-46
    7 obr., 2 tab., 3 s. bibl.
    Zkr. název ser.: Folia quat. (Kraków).
Předmětová skupina
    geologie regionální
    riziko seizmické
    tektonika bloková
    západosudetská oblast
    zóna mobilní
Geografické jméno
    Česká republika
    Polsko - jihozápad
Klíčové slovo
Abstrakt (anglicky)
   The Sudetes and Northern Sudetic Foreland area, together with the Bohemian Massif formed a frame region for the folding Alpides. As a result of intensive thrusting during the late Alpine oro-genic movements, it was broken into several, separate tectonic blocks. The blocks are separated by NW-trending fault systems and are characterised by large amplitudes of movements. Dislocations extend throughout the entire rigid earth crust, reaching the Moho discontinuity. In the Polish part of the Sudetes and Fore-Sudetic Block three major fault zones have been identified: the Sudetic Marginal Fault, the Mid-Sudetic Fault, and the Middle Odra Fault System. Tectonic activity, which reached its climax in the late Tertiary, has also continued throughout the early Quaternary and until recent times. Young fault scarps, occurrences of thermal and mineral waters, and historical records of earthquakes, which are still registered today, testify to the Quaternary tectonic activity.
   During the past decade intensive geodynamic investigations have been initiated. Geodynamic profiles and geodynamic polygons have been established on the confirmed tectonic zones, active in Neogene times. A regional geodynamic network combined with the Czech "SILESIA" network has been set up within the framework of the "GEOSUD" Project. Satellite OPS, geodetic and gravimetric observations are carried out in annual cycles. Research results confirm recent mobility of the main tectonic zones in the Sudetes and Fore-Sudetic Block. The greatest changes in gravity values and horizontal and vertical displacements are registered on research benchmarks in the Paczkow Graben, near the Nysa Dam. Investigations of recent tectonic movements in the Sudetes and northern Sudetic Foreland are both of cognitive and practical significance. Several water dams have been constructed and more are planned in zones of recent tectonic activity.
   Underground and surface mining of minerals takes place there and large urban and industrial agglomerations are also located in the area. The results of geodynamic studies will be used for preparation of risk forecasts for these objects
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
Datum vložení
    25. 3. 2008
Datum importu
    8. 8. 2012