PAVEL BOSÁK1 , PETER PRUNER1 , ANDREJ MIHEVC2 & NADJA ZUPAN HAJNA2
1Institute of Geology, Academy of Sciences of the Czech Republic,
Praha, Czech Republic
2Karst Research Institute, Slovenian Academy of Sciences and Arts, Postojna, Slovenia
Abstract: Palaeomagnetic method (magnetostratigraphy) was applied to date four profiles of cave fill in the Classical Karst of Slovenia - Divaska jama, Trhlovca Cave, Divaca profile at highway near village of Divaca and Cernotice profile in a quarry near village of Crni Kal. The dynamic character of cave filling, and exhumation and fossilisation processes is expressed by numerous unconformities within profiles belonging to inner-cave facies. Brunhes/Matuyama boundary and Jaramillo subchron were interpreted in Trhlovca Cave and Divaska jama. Obtained magnetozones in Divaca profile and Cernotice Quarry can be correlated with events within Matuyama up to Gilbert chrons. Therefore, the correlation of obtained arrangements of normal and reverse polarised magnetozones with standard palaeomagnetic scales can be finish only with difficulties and with a high degree of uncertainty as breaks in deposition can hidden a substantial part of the geological time. Without the help of other dating methods, especially biostratigraphy, and correlation of magnetostratigraphic results cannot be explicit.
Key words: cave sediments, palaeomagnetism, magnetostratigraphy, Tertiary/Quaternary, Classical Karst, Slovenia
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