Podrobnosti záznamu

Název
    Monitoring temporal gravity changes in different geological conditions
Údaj o odpovědnosti
    Jan Mrlina
Další názvy
    Monitorování krátkodobých změn tíže v odlišných geologických podmínkách
Autor
    Mrlina, Jan
Jazyk
    anglicky
Zdrojový dokument - seriál
    Acta montana. Series A, Geodynamics
Svazek/č.
    No. 20
Strany
    p. 125-131
Rok
    124
Poznámky
    4 obr., 14 bibl.
    České resumé
    il.
    Zkr. název ser.: Acta montana
Předmětová skupina
    anomálie tíhová
    Český masiv
    měření gravimetrické
    monitoring
    pole gravitační
    procesy geodynamické
    seizmicita
Geografické jméno
    ČR-Čechy
    Egypt
    Řecko
Klíčové slovo
    Changes
    Conditions
    Different
    Geological
    Gravity
    Monitoring
    Temporal
Abstrakt (anglicky)
   Dynamic evolution of the Earth crust is manifested by many natural phenomena. As the most important we consider earthquakes and volcanic activity. However, attention is paid to many others, like surface kinematics, fluid emissions, groundwater oscillations, etc. One of the phenomenon that seems to be also related to the crustal dynamics is temporal non-tidal change of gravity. It has been already proved that such changes can be observed by continuous recording or by repeated measurements at a network. The source of changes is probably related to stress and strain conditions in the crust. Three regions have been studied in the 1990's - West Bohemia seismoactive region, the Corinth rift in Greece and NW area of the Aswan Lake in Egypt. All the three regions express different geodynamic behaviour with different seismic response under different geological situation. It was proved that each area requires independent data analysis resulting in a local model of crustal dynamics.
   The principal question to be answered during gravity data interpretation is to define causative process. For that, the control of surface vertical movements is an essential condition, in order to eliminate its direct effect on measured gravity. Temporal changes of gravity were also observed in local detailed conditions as an effect of geomechanical processes related to engineering geology and hydrogeology
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    21. 3. 2008
Datum importu
    8. 8. 2012