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16th International Congress of Speleology : Czech Republic, Brno July 21–28,2013 : proceedings
Filippi, Michal ; Bosák, Pavel
Proceedings of the 16th International Congress of Speleology consist of 3 separate Volumes. The Congress was visited by 1007 participants from 53 countries across the world. Volume III also starts with traditional, heavily attended topics organized in two sessions: “Karst and Caves in Carbonate Rocks, Salt and Gypsum” and “Karst and Caves in Other Rocks, Pseudokarst”. These topics are supplemented by the related session “Speleogenesis”. This last volume of the Proceedings is ended by the study of cave minerals, included in a specific session “Cave Minerals”.
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16th International Congress of Speleology : Czech Republic, Brno July 21–28,2013 : proceedings
Filippi, Michal ; Bosák, Pavel
Proceedings of the 16th International Congress of Speleology consist of 3 separate Volumes. The Congress was visited by 1007 participants from 53 countries across the world. Volume II contains the traditionally heavily attended session “Exploration and Cave Techniques” and by the related session “Speleological Research and Activities in Artificial Underground”. These topics are supplemented with contributions from the field of “Karst and Cave Survey, Mapping and Data Processing”. The content of the second Volume is completed with sessions “Modelling in Karst and Cave Environments” and “Cave Climate and Paleoclimate Record”.
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16th International Congress of Speleology : Czech Republic, Brno July 21–28,2013 : proceedings
Filippi, Michal ; Bosák, Pavel
Proceedings of the 16th International Congress of Speleology consist of 3 separate Volumes. The Congress was visited by 1007 participants from 53 countries across the world. Volume I starts with three plenary lectures representing three global cave and karst topics. Further it contains papers concerned with history of research, archeology, paleontology, topics focused on management and preservation of caves and karst areas and other social-related aspects and also it contains a small part devoted to extraterrestrial karst. Volume I is ended by a large portion of biology-oriented papers.
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Miocene-Pliocene age of cave Snežna Jama na Raduhi, Southern Alps, Slovenia
Mihevc, A. ; Horáček, I. ; Pruner, Petr ; Zupan Hajna, N. ; Čermák, Stanislav ; Wagner, Jan ; Bosák, Pavel
Snežna jama cave is 1,600 m long horizontal cave at about 1,500 m a.s.l. in Raduha Massif (Kamnik-Savinja Alps) rich in cave deposits (both allogenic sediments and massive flowstones). The cave size, shape and deposits show (1) formation of the cave in different conditions, and (2) its substantial age. A 4.8 m deep pit was excavated in allogenic sediments. Samples were taken both for palaeomagnetic analysis and palaeontological screening. Sediments consist of rhythmically arranged layers deposited in phreatic conditions. Fragments of rodent teeth and a well-preserved molar of genus Baranomys were identified. Fossil remains indicate mammalian zone MN 16 and MN 14. A high-resolution palaeomagnetic analysis revealed total of 3 principal normal polarized and 2 principal reverse polarized magnetozones. If we accept the palaeontologic calibration, the deposition took place within Gauss and Gilbert chrons, from about 2.6 to more than 5 Ma. Long sedimentation period is in concordance with the cave rocky relief that shows phreatic and epiphreatic morphology and predates the main uplift of the area for about 900 m.
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Výzkum sedimentů a speleotém ve Zbrašovských aragonitových jeskyních
Bosák, Pavel ; Šlechta, Stanislav ; Hercman, H. ; Pruner, Petr
Numerické datování termominerálních speleotém (koblih) z okolí lokality U krokodýla poskytlo poněkud starší data než dosud udávaná v literatuře: 123 až 127 tisíc let (s rozptylem 108 až 144 tisíc let). Speleotémy se tvořily v průběhu klimatického optima vrcholné poslední doby meziledové (eem), tj. v mořském izotopovém stupni (MIS) 5e. Jemnozrnné klastické sedimenty z výkopu U Krokodýla mají normální paleomagnetickou polaritu vzorků s téměř současnými paleomagnetickými směry. S ohledem na skutečnost, že sedimenty leží na bloku ze stěny utržených termominerálních speleotém, jsou pak jistě mladší než 108 tisíc let.
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