Podrobnosti záznamu

Název
    The study of recent destructive processes in the Moravian Karst caves (Czech republic)
Autor
    Faimon, Jiří
    Schwarzová, Monika
    Štelcl, Jindřich
    Zajíček, Petr
    Zimák, Jiří
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Geographica
Svazek/č.
    Roč. 38, č. 1
Strany
    5
Rok
    2004
Výraz tezauru
    cave
    CO2
    corrosion
    destruction
    dripping water
    fissures
    straw stalactite
    supersaturation
Klíčové slovo
    Caves
    Czech
    Destructive
    Karst
    Moravian
    Processes
    Recent
    Republic
    Study
Abstrakt (anglicky)
   This work tried to decide whether an occasionally observed falling of straw stalactites in the Moravian Karst caves is caused by a hypothetical chemical corrosion. The straw stalactite wall was found to be formed by three calcite layers. The middle layer (a stalactite skeleton) was typically cracked in agreement with calcite cleavage. Some impact of chemical corrosion was positively identified on the outer side of straw stalactite walls. Any corrosion of the inner wall of stalactite channel was not explicitly proved. This is consistent with the supersaturation of the majority of monitored dripping waters with respect to calcite (SI=0.2 to 1.2). However, the finding of unsaturated dripping water in the Punkevní Caves (SI=-0.8 to -0.3) did not allow to exclude the chemical corrosion definitively. The seasonal increase of cave CO2-concentrations (up to 1 vol.
Přispěvatel
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012