Podrobnosti záznamu

Název
    Geologic factors influencing distribution of hardrock transmissivity
Údaj o odpovědnosti
    Jiří Krásný
Další názvy
    Proceedings of the XXX IAH Congress on Groundwater: Past Achievements and Future Challenges, Cape Town/South Africa/26 November-1 December 2000 (Variant.)
Autor
    Krásný, Jiří
Jazyk
    anglicky
Zdrojový dokument - monografie
    Groundwater: Past Achievements and Future Challenges
Strany
    s. 187-191
Poznámky
    1 obr., 1 tab., 17 bibl.
    il.
Předmětová skupina
    Český masiv
    hydrogeologie
    metamorfika
    pískovce
    propustnost
    puklinatost
Geografické jméno
    Česká republika
Klíčové slovo
    Distribution
    Factors
    Geologic
    Hardrock
    Influencing
    Transmissivity
Abstrakt (anglicky)
   In the hardrock environment of the Bohemian Massif (Czech Republic) inhomogeneity elements of at least three orders of magnitude were defined. Local fissure systems of different dip and strike (local inhomogeneities) might be seeen at outcrops of hard rocks and are tapped by particular water wells or determined by well-logging techniques. Inhomogeneities of a medium scale (sub-regional inhomogeneities) usually follow river valley and/or are represented by fractured zones characteristic by higher prevailing transmissivity. regional scale inhomogeneities are evidently caused by different neotectonic activities. This hierarchic system of fracture inhomogeneities of different orders of magnitude is decisive for spatial distribution of transmissivity in hard rocks. Practical consequences for regional groundwater flow modelling, safe yield assessment, well siting and groundwater vulnerability studies are evident.
   Small differences in transmissivity caused by distinct lithologic composition of hard rocks are usually masked by rock fracturation, causing larger differences
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    31. 8. 2007
Datum importu
    8. 8. 2012