Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)

Age and origin of secondary carbonatesfrom several caves in the Bohemian Paradise

 

Jiří Bruthans, Zdenka Churáčková, Petr Jenč, Jana Schweigstillová

Geoscience Research Reports 42, 2009 (GRR for 2008), pages 54–59

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Abstract

Secondary carbonates in 4 sandstone caves in the Bohemian Paradise were dated by means of 14C and U/Th methods. Secondary carbonates (cave sinters) were deposited 5-13 kyr BP. Stable isotope values of C and O of carbonates from Krtola and Petráskova caves fall into values typical for cave sinters. In Sintrová and U studánky caves the isotope composition indicates evaporation and fast CO2 degassing. Secondary carbonate deposits proved that sides of studied caves were not enlarged for at least last 5-8 kyr BP. Caves were thus created probably during last glacial or at glacial/Holocene transition.