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Title:Using stable isotopes and major ions to identify recharge characteristics of the Alpine groundwater-flow dominated Triglavska Bistrica River
Authors:ID Serianz, Luka (Author)
ID Cerar, Sonja (Author)
ID Vreča, Polona (Author)
Files:.pdf PDF - Presentation file, download (3,01 MB)
MD5: 6027FE4B6C48421016756D36B8B6F043
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo GeoZS - Geological Survey of Slovenia
Abstract:Triglavska Bistrica is a typical Alpine river in the north-western part of Slovenia. Its recharge area includes some of the highest peaks in the Julian Alps. The hydrogeological conditions and flow of the river depend largely on groundwater exchange between the karstified aquifer in the carbonate rocks and the intergranular aquifer in the glaciofluvial deposits. The average volume of the river flow is up to several m3/s. In this study, water samples from different locations along the river were analysed for stable isotope ratios of oxygen and hydrogen, major ions, and concentration of tritium activity. The correlation of major ions suggests that the recharge area consists of both limestone and dolomite rocks. The δ18O and δ2H values decrease downstream, implying that the average recharge elevation increases. At the downstream sampling site V-5, located approx. 300 m upstream from the confluence of the Sava Dolinka River, the calculated mean recharge altitude is estimated to be 1,996 m.
Keywords:groundwater, oxygen and hydrogen isotopes, hydrogeochemistry, recharge area, Alpine aquifer, Slovenia
Publication status:Published
Publication version:Version of Record
Publisher:Geološki zavod Slovenije
Year of publishing:2021
Number of pages:str. 205-220
Numbering:vol. 64, no . 2
PID:20.500.12556/DiRROS-14797 New window
UDC:556.3
ISSN on article:0016-7789
DOI:10.5474/geologija.2021.012 New window
COBISS.SI-ID:92521731 New window
Publication date in DiRROS:09.03.2022
Views:845
Downloads:283
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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:Uporaba stabilnih izotopov in glavnih ionov za oceno napajalnih značilnosti alpskega rečnega toka Triglavske Bistrice pod vplivom podzemne vode
Abstract:Triglavska Bistrica je tipična alpska reka, ki se nahaja v severozahodnem delu Slovenije. Njeno napajalno zaledje pokriva nekaj najvišjih vrhov v Julijskih Alpah. Hidrogeološke razmere in rečni tok sta v veliki meri odvisna od izmenjave podzemne vode med kraško-razpoklinskim vodonosnikom v karbonatnih kamninah in medzrnskim vodonosnikom v glaciofluvialnih sedimentih. Povprečen pretok reke v spodnjem toku je ocenjen na nekaj m3/s. V tej študiji so bila določena razmerja stabilnih izotopov kisika in vodika, koncentracije glavnih ionov in koncentracija aktivnosti tritija v vzorcih vode na različnih lokacijah nizvodno od izvira Triglavske Bistrice. Na osnovi korelacije osnovnih ionov je možno sklepati, da je napajalno zaledje sestavljeno tako iz apnenca kot tudi dolomita. Vrednosti δ18O in δ2H upadajo dolvodno od izvirnega območja, kar pomeni, da povprečna nadmorska višina napajanja narašča. Na dolvodnem merilnem mestu V-5, ki se nahaja približno 300 m nad sotočjem s Savo Dolinko, znaša izračunana povprečna nadmorska višina napajanja 1.996 m.
Keywords:podzemna voda, kisikovi in vodikovi izotopi, hidrogeokemija, napajalno območje, alpski vodonosnik, Slovenija


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