Podrobnosti záznamu

Název
    Jama pod Babjim zobom
Autor
    Bosák, Pavel
    Mihevc, A.
    Pruner, Petr
    Zupan Hajna, N.
Konference
    International Karstological School "Classical Karst" (21. : 10.06.2013-14.06.2013 : Postojna, Slovinsko)
Jazyk
    anglicky
Typ dokumentu
    abstrakt
Zdrojový dokument - monografie
    Hypogene speleogenesis (between theory and reality...) : guide book and abstracts
Strany
    S. 33-37
Poznámky
    Projekt: IAA300130701, GA AV ČR3cav_un_auth*0228941
    Rozsah: 5 s.
Předmětová kategorie
    Cenozoic
    geomorphological evolution
    hypogenic and epiphreatic speleogenesis
    magnetostratigraphy
    Speleothems
Klíčové slovo
    Babjim
    Jama
    Zobom
Abstrakt (anglicky)
   Jama pod Babjim zobom Cave (valley of the Sava River on the western slope of the Jelovica Plateau) consists of a horizontal passage and younger vadose shafts. The flowstone profile was sampled for magnetostratigraphy: the upper part contains an N polarized magnetozone and the lower one has R polarization. The cave was probably formed before the Sava River entrenched some 650 m and separated the Jelovica Plateau from the Pokljuka Plateau, probably around the Miocene/Pliocene boundary. The cave could be probably formed along a zone of mixing of meteoric and hypogene (hydrothermal) waters. Crystallization of large scalenohedrons and deposition of some other speleothem types probably originated from degassing of up-welling low thermal waters. Cold water entered later the cave and remodelled it in an epiphreatic conditions. The massive speleothems and some vadose shafts were formed in vadose conditions.
   Evolution of the vadose elements was connected with the entrenchment of the Sava river-bed. The interpretation of paleomagnetic data can easily support ages greater than 780 ka in spite of quite high degree of speleothem recrystallization.
Přispěvatel
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
    U
Datum importu
    23. 10. 2014