Record details

Title
    Registration of microdisplacements at a Cordillera Blanca fault scarp
Statement of responsibility
    Blahoslav Košťák, Vít Vilímek, Zapata Luyo
Other titles
    Měření pohybů na zlomu v pohoří Cordillera Blanca
Author
    Košťák, Blahoslav
    Vilímek, Vít
    Zapata Luyo, Marco
Language
    anglicky
Source title - serial
    Acta montana. Series A, Geodynamics
Vol./nr.
    No. 19
Pages
    s. 61-74
Year
    123
Notes
    9 obr., 3 fot., 22 bibl.
    České resumé
    il.
    Zkr. název ser.: Acta montana
Subject group
    geologie regionální
    mezinárodní spolupráce
    monitoring
    posun
    tektonika zlomová
    zlom aktivní
    zlomový sráz
Geographical name
    Andy-Cordillera Blanca (Peru)
    Peru
Keyword
    Blanca
    Cordillera
    Fault
    Microdisplacements
    Registration
    Scarp
Abstract (in english)
   A quantitative check of movements on a tectonic scarp in Cordillera Blanca, the Andes of Peru, has been organised using an instrumentation technique that includes registration of relative angular deviations. The instrument installed permanently into the failure zone cutting a moraine is able to register microdisplacements in all the three dimensions. About three years of initial measurements represent an introductory period of observation in which data of movements were established with several relatively low value slips. A major irreversible slip not exceeding 0,6 mm was induced by a distant earthquake. The effect is conformable to phenomena recorded elsewhere in seismically active areas. Registered values and trends are of low order, yet compatible and well comparable with expected regional uplifts. The observation site can be evaluated as of a good stability to avoid unwanted parasite effects
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    21. 3. 2008
Import date
    8. 8. 2012