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Title:Reconstruction of palaeoflow and depositional dynamics from the Merjasec unroofed cave, Laze Plain (central Slovenia)
Authors:ID Miklavc, Primož (Author)
ID Lipar, Matej (Author)
ID Šušteršič, France (Author)
ID Šmuc, Andrej (Author)
Files:URL URL - Source URL, visit https://ojs.zrc-sazu.si/ags/article/view/14446
 
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Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZRC SAZU - The Research Centre of the Slovenian Academy of Sciences and Arts
Abstract:Sparsely preserved unroofed cave deposits are ancient remains of cave systems. The Merjasec unroofed cave is a perfect example of poorly preserved cave deposits where conventional sedimentological study revealed a greater potential for the reconstruction of local to regional palaeoenvironmental conditions. Cave deposits are characterised by polymictic conglomerates, pebbly sandstones and flowstone belonging to five distinct sedimentary facies. Sedimentary features indicate deposition of channel-related bedforms in a narrow cave-connecting conduit, activated only during extreme pulsating floods under epiphreatic conditions. In this sense, it mimics the current hydrology of the regional system and shows that the hydrological history of the cave system is strongly dependent on climatic conditions. Moreover, this study demonstrates a methodological approach that can be successfully applied to similary exposed cave deposits elsewhere, showing that even fragmentary or eroded remnants, when analysed in detail, can significantly contribute to understanding of karst palaeohydrology.
Keywords:karst, denuded cave, clastic cave deposits, facies, fluvial, depositional dynamics, palaeoenvironment
Publication status:Published
Publication version:Version of Record
Publication date:07.10.2025
Year of publishing:2025
Number of pages:str. 30-45
Numbering:letn. 65, št. 2
PID:20.500.12556/DiRROS-25617 New window
UDC:551.435.84:551.3.051(497.4)
ISSN on article:1581-6613
DOI:10.3986/AGS.14446 New window
COBISS.SI-ID:252196867 New window
Copyright:Imetniki avtorskih pravic na prispevkih so avtorji
Note:Raziskovalni podatki, na katerih temelji objava, so na voljo v članku
Publication date in DiRROS:25.01.2026
Views:202
Downloads:124
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Record is a part of a journal

Title:Acta geographica Slovenica
Shortened title:Acta geogr. Slov.
Publisher:Geografski inštitut Antona Melika ZRC SAZU, Založba ZRC, Slovenska akademija znanosti in umetnosti
ISSN:1581-6613
COBISS.SI-ID:124775936 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0195
Name:Geookolje in geomateriali

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P6-0101
Name:Geografija Slovenije

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J6-50213
Name:Denudirane jame ravnine Nullarbor

Funder:UNESCO
Funding programme:The International Geoscience Programme (IGCP)
Project number:IGCP661
Name:The Critical Zone in Karst Systems

Funder:UNESCO
Funding programme:The International Geoscience Programme (IGCP)
Project number:IGCP715
Name:A new karst modelling approach along different tectonic contacts

Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:07.10.2025
Applies to:VoR

Secondary language

Language:Slovenian
Title:rekonstrukcija paleotoka in dinamike zapolnjevanja brezstrope jame Merjasec, Laški ravnik (osrednja Slovenija)
Abstract:Redkeje ohranjeni sediment brezstropih jam so ostanki starejših jamskih sistemov. Brezstropa jama Merjasec je odličen primer slabo ohranjenih jamskih sedimentov, kjer so konvencionalne sedimentološke študije pokazale velik potencial za rekonstrukcijo lokalnih do regionalnih paleookoljskih razmer. Jamske sedimente predstavljajo polimiktični konglomerati, prodnati peščenjaki ter sige in so organizirani v pet različnih sedimentnih faciesov. Sedimentne značilnosti kažejo na odlaganje v ozkem, povezujočem kanalu aktiviranem le med ekstremnimi pulzirajočimi poplavami pod epifreatičnimi pogoji. V tem smislu posnema sedanjo hidrologijo regionalnega sistema in kaže, da je hidrološka zgodovina jamskega sistema močno odvisna od podnebnih razmer. Poleg tega ta študija prikazuje metodološki pristop, ki ga je mogoče uspešno uporabiti za podobno razgaljene jamske sedimente drugje, in kaže, da lahko celo fragmentirani ali erodirani ostanki, če jih podrobno analiziramo, pomembno prispevajo k razumevanju kraške paleohidrologije.
Keywords:kras, brezstropa jama, klastični jamski sedimenti, faciesi, fluvialno, dinamika odlaganja, paleookolje


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This document is a part of these collections:
  1. Acta geographica Slovenica = Geografski zbornik

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