Record details

Title
    Geofyzikální měření na Labské louce - příspěvek k poznání palsoidních útvarů
Statement of responsibility
    Jiří Dohnal, Zdeněk Jáně, Jaroslav Kněz, Jan Vilhelm, Ladislav Zima
Other titles
    The Geophysical Measurement on the Locality Labská louka - the Contribution to the Knowledge of Palsoid Formations
Author
    Dohnal, Jiří
    Jáně, Zdeněk
    Kněz, Jaroslav
    Vilhelm, Jan
    Zima, Ladislav
Language
    česky
Source title - serial
    Opera corcontica
Vol./nr.
    Roč. 36
Pages
    s. 5-14
Year
    1999
Notes
    5 obr., 9 bibl.
    Anglické resumé
    il.
    Zkr. název ser.: Opera corcont.
Subject group
    granit
    horniny plutonické
    krkonošsko-jizerský pluton
    kryopedologie
    kvartér oblastí kontinentálního zalednění Českého masivu
    měření geofyzikální
    metoda odporová
    pals
    reliéf
    seizmika refrakční
Geographical name
    ČR-Čechy
    Krkonoše-Labská louka
Keyword
    Geofyzikální
    Labské
    Louce
    Měření
    Palsoidních
    Poznání
    Příspěvek
    útvarů
Abstract (in english)
   On the locality Labská louka the small area of the size 130x80 m, in which there are palsoid bodies (situated SE of Labe's source), was explored by means of geophysical methods. This research was carried out within the framework of studies of particular geomorphological phenomena of the Giant Mts. tundra. The shallow refraction seismic method and the geoelectrical multielectrode resistivity method were used for determination of a palsoid-elevations' structure and nature of their bedrock. The survey proved palsoid bodies are solely made up of a conductive layer of peat, with the thickness as many as 2 m, while in the palsoids' neighbourhood the thickness of this layer is less then 1 m. The bottom part of the cover is created of granite eluvium. The depth of the fractures and weathered bedrock changes from 1.0 to 4.7 m. In the highest part of the bedrock there are two sections of different resistivties.
   The first one of high resistivity is probably made up of fractured and mechanically created of weathered granite filled with more mineralized water. The probable presence of several tectonic dislocations and the resistivity space distribution indicate a possible genetic connection between palsoid formations and hydrogeological conditions within the studied area
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    10. 5. 2007
Import date
    8. 8. 2012