20.500.12556/DiRROS-14799 Geophysical investigations in the Radovna River Spring area (Julian Alps, NW Slovenia) Geofizikalne raziskave na območju izvira reke Radovne (Julijske Alpe, SV Slovenija 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. 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. Ground penetrating radar Seismic reflection method Radovna spring hydrogeology aquifer geometry glacial valley groundwater table Georadar refleksijska seizmika izvir Radovne hidrogeologija geometrija vodonosnika ledeniška dolina gladina podzemne vode true false true Geološki zavod Slovenije Angleški jezik Slovenski jezik Delo ni kategorizirano 2022-03-09 09:46:33 2022-03-09 10:07:02 2022-08-20 03:37:59 0000-00-00 00:00:00 2021 0 0 str. 253-266 no . 2 vol. 64 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 556.3 0016-7789 10.5474/geologija.2021.014 92835843 1819-Article_Text-12342347-3-10-20220113.pdf 1819-Article_Text-12342347-3-10-20220113.pdf 1 1453284B69319D8CD8D4B59E200F20A0 6b5ccf4e93889970f65cbf4b18668f9293443390ae15ce9ca333ff7aac97f808 d5c8c31a-17b6-11ed-b6b8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=19080 Geološki zavod Slovenije 0 0 0