Original title: Na Javorce Cave - a new discovery in the Bohemian Karst (Czech Republic): unique example of relationships between hydrothermal and common karstification.
Authors: Dragoun, J. ; Žák, Karel ; Vejlupek, J. ; Filippi, Michal ; Novotný, J. ; Dobeš, J.
Document type: Papers
Conference/Event: International Congress of Speleology /16./, Brno (CZ), 2013-07-21 / 2013-07-28
Year: 2013
Language: eng
Abstract: The Na Javorce Cave is located in the Bohemian Karst, Czech Republic, about 25 km SW of Prague. The cave was formed in vertically dipping layers of Lower Devonian limestone; it is 1,723 m long and 129 m deep, of which 9 m is permanently flooded. The cave is polygenetic, with several clearly separable evolutionary stages. Cavities discovered to date were mostly formed along the tectonic structures of two main systems. One of these systems is represented by vertical faults of generally N-S strike, which are frequently accompanied by vein hydrothermal calcite with crystal cavities. The second fault system is represented by moderately inclined west-dipping faults. Smaller tube-like passages of phreatic morphology connect the larger cavities. The fluid inclusion data obtained for calcite developed along both fault systems in combination with C and O stable isotope studies indicate that the hydrothermal calcite was deposited from moderately NaCl-type basinal fluids (0.5 to 8.7 wt. % NaCl equ
Keywords: Bohemian Karst; caves; karst; karstification
Project no.: GAP210/10/1760 (CEP)
Funding provider: GA ČR
Host item entry: 16th International Congress of Speleology : Czech Republic, Brno July 21-28, 2013 : proceedings, ISBN 978-80-87857-09-0

Institution: Institute of Geology AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0223085

Permalink: http://www.nusl.cz/ntk/nusl-155878


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