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Title:Geophysical investigations in the Radovna River Spring area (Julian Alps, NW Slovenia)
Authors:ID Torkar, Anja (Author)
ID Zajc, Marjana (Author)
ID Atanackov, Jure (Author)
ID Gosar, Andrej (Author)
ID Brenčič, Mihael (Author)
Files:.pdf PDF - Presentation file, download (6,27 MB)
MD5: 1453284B69319D8CD8D4B59E200F20A0
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo GeoZS - Geological Survey of Slovenia
Abstract:The Radovna River Valley is located in the north-western part of Slovenia in the Julian Alps, where there is an extensive intergranular aquifer whose depth to pre-Quaternary bedrock is unknown. Therefore, to obtain information about the depth of the valley and the geometry of the aquif er two geophysical methods were used in our study; ground penetrating radar (GPR) and seismic reflection method. The low-frequency GPR method has shown to be useful for determining the depth of the groundwater and the predominant groundwater recharge. Also, the high-resolution seismic method provided an insight about the morphology of the pre-Quaternary basement with the deepest point at 141 meters below surface. Measurements of hydrogeological parameters such as groundwater level and river discharge measurements were carried out in the study area. Both data analyses showed that groundwater level and river discharge are highly fluctuatingand rapidly changing, indicating a well-permeable aquifer, implying that such an aquifer is extremely sensitive and vulnerable to extreme climate events. Both the geophysical methods and the hydrogeological information have provided important information about the morphology of the valley and the alluvial aquifer, as well as increasing the knowledge about the Radovna springs system, which will contribute very important information for future hydrogeological studies.
Keywords:Ground penetrating radar, Seismic reflection method, Radovna spring, hydrogeology, aquifer geometry, glacial valley, groundwater table
Publication status:Published
Publication version:Version of Record
Publisher:Geološki zavod Slovenije
Year of publishing:2021
Number of pages:str. 253-266
Numbering:vol. 64, no . 2
PID:20.500.12556/DiRROS-14799 New window
UDC:556.3
ISSN on article:0016-7789
DOI:10.5474/geologija.2021.014 New window
COBISS.SI-ID:92835843 New window
Publication date in DiRROS:09.03.2022
Views:1443
Downloads:503
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TORKAR, Anja, ZAJC, Marjana, ATANACKOV, Jure, GOSAR, Andrej and BRENČIČ, Mihael, 2021, Geophysical investigations in the Radovna River Spring area (Julian Alps, NW Slovenia). Geologija [online]. 2021. Vol. 64, no. no . 2, p. 253–266. [Accessed 7 April 2025]. DOI 10.5474/geologija.2021.014. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=14799
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Record is a part of a journal

Title:Geologija
Publisher:Geološki zavod Slovenije
ISSN:0016-7789

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:28.12.2021

Secondary language

Language:Slovenian
Title:Geofizikalne raziskave na območju izvira reke Radovne (Julijske Alpe, SV Slovenija
Abstract:Dolina reke Radovne leži v severozahodnem delu Slovenije na območju Julijskih Alp, kjer se nahaja obsežen medzrnski vodonosnik, katerega globina do predkvartarne podlage ni znana. Zato smo v naši raziskavi za pridobitev podatkov o globini doline in geometriji vodonosnika uporabili dve geofizikalni metodi; georadar in metodo seizmične refleksije. Metoda nizkofrekvenčnega georadarja se je izkazala za uporabno pri določanju globine podzemne vode in smeri prevladujočega napajanja podzemne vode. Tudi seizmična metoda visoke ločljivosti je omogočila vpogled v morfologijo predkvartarne podlage z najglobljo točko 141 metrov pod površjem. Na območju raziskav so bile opravljene tudi meritve hidrogeoloških parametro v, kot so gladina podzemne vode in pretok v reki. Analiza obeh parametrov je pokazala, da nivo podzemne vode in rečni pretok močno nihata in se hitro spreminjata, kar pomeni, da je tak vodonosnik izjemno občutljiv in ranljiv za ekstremne podnebne dogodke. Tako geofizikalne metode kot hidrogeološki podatki predstavljajo pomembne informacije o morfologiji doline in aluvialnega vodonosnika, prav tako je znanje o sistemu izvirov Radovne večje, kar bo predstavljalo po memben doprinos pri hidrogeoloških raziskavah v prihodnje.
Keywords:Georadar, refleksijska seizmika, izvir Radovne, hidrogeologija, geometrija vodonosnika, ledeniška dolina, gladina podzemne vode


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