Chronology of heterogeneous deposits in the side entrance of Postojna Cave, Slovenia

Mateja Ferk; Matej Lipar; Andrej Šmuc; Russell N. Drysdale; Jian Zhao

doi:10.3986/AGS.7059

Avtorji

Mateja Ferk Anton Melik Geographical Institute, Research Centre of the Slovenian Academy of Sciences and Arts
Matej Lipar Anton Melik Geographical Institute, Research Centre of the Slovenian Academy of Sciences and Arts
Andrej Šmuc Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana
Russell N. Drysdale School of Geography, The University of Melbourne, Melbourne
Jian Zhao School of Earth and Environmental Sciences, Faculty of Science, The University of Queensland

DOI:

https://doi.org/10.3986/AGS.7059

Ključne besede:

Geografija, geoznanost, geologija, kras, stratigrafija, datiranje, 14C, U/Th

Povzetek

Pri modernizaciji turistične poti v Rovu novih podpisov, ki je stranski rov Postojnske jame, leta 2002 je bilo v več kot štiri metre globokem vkopu odkrito zaporedje menjajočih se plasti sige, fluvialnih sedimentov in grušča. Te plasti so pomemben pokazatelj preteklih okoljskih sprememb. Starost sige med plastmi je bila določena z radioogljikovo in uran-torijevo metodo. Siga se je odlagala v treh obdobjih, in sicer okoli 33ka BP, 103ka BP in 153ka BP. Odlaganje sige ni bilo omejeno zgolj na topla obdobja, ampak se je siga odlagala tudi v hladnejših obdobjih. Rezultati kažejo, da je bilo na območju jugozahodne Slovenije vsaj v nekaterih hladnih obdobjih Pleistocena podnebje primerno za rast sige.

Prenosi

Podatki o prenosih še niso na voljo.

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