Application of environmental isotope techniques for determining the origin and mechanisms of recharge of the Rashche Spring

Todor Anovski; Elena Anovska-Jovcheva; Kiril Lisichkov; Dejan Dimitrovski; Stefan Kuvendziev; Albrecht Leis; Ralf Benischke; Eftim Micevski; Ljubomir Arsov

doi:10.1007/s12665-019-8674-5

Application of environmental isotope techniques for determining the origin and mechanisms of recharge of the Rashche Spring

Todor Anovski, Elena Anovska-Jovcheva, Kiril Lisichkov, Dejan Dimitrovski, Stefan Kuvendziev, Albrecht Leis, Ralf Benischke, Eftim Micevski, Ljubomir Arsov

Institute of Applied Geosciences (2210)

Research output: Contribution to journal › Article › peer-review

Abstract

This study is focused on the groundwater system of the Rashche Spring which serves as the main source of drinking water for the City of Skopje, located at the foot of the widely karstified Zeden massif. Investigations were made to define the mechanisms of groundwater recharge and its residence time. This was done using isotope tracers including 1H, 2H, 3H, and 18O in water samples from the local hydrological cycle, as well as noble gases for the application of 3H/3He dating method. A linear regression model of stable isotope data of precipitation samples resulted in the best-fit equation of δ2H = 7.46 · δ18O + 9.56, and shows a δ2H dependence from the altitude of precipitation formation with a gradient of − 3.06‰/100 m. Local precipitation, surface waters and Rashche Spring water showed a relatively narrow range of tritium values of 5 ± 1 TU, whereas the deep artesian water from Polog Valley yielded very low tritium contents (

Original language	English
Article number	656
Number of pages	11
Journal	Environmental Earth Sciences
Volume	78
DOIs	https://doi.org/10.1007/s12665-019-8674-5
Publication status	Published - 20 Nov 2019

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title = "Application of environmental isotope techniques for determining the origin and mechanisms of recharge of the Rashche Spring",

abstract = "This study is focused on the groundwater system of the Rashche Spring which serves as the main source of drinking water for the City of Skopje, located at the foot of the widely karstified Zeden massif. Investigations were made to define the mechanisms of groundwater recharge and its residence time. This was done using isotope tracers including 1H, 2H, 3H, and 18O in water samples from the local hydrological cycle, as well as noble gases for the application of 3H/3He dating method. A linear regression model of stable isotope data of precipitation samples resulted in the best-fit equation of δ2H = 7.46 · δ18O + 9.56, and shows a δ2H dependence from the altitude of precipitation formation with a gradient of − 3.06‰/100 m. Local precipitation, surface waters and Rashche Spring water showed a relatively narrow range of tritium values of 5 ± 1 TU, whereas the deep artesian water from Polog Valley yielded very low tritium contents (",

author = "Todor Anovski and Elena Anovska-Jovcheva and Kiril Lisichkov and Dejan Dimitrovski and Stefan Kuvendziev and Albrecht Leis and Ralf Benischke and Eftim Micevski and Ljubomir Arsov",

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doi = "10.1007/s12665-019-8674-5",

language = "English",

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T1 - Application of environmental isotope techniques for determining the origin and mechanisms of recharge of the Rashche Spring

AU - Anovski, Todor

AU - Anovska-Jovcheva, Elena

AU - Lisichkov, Kiril

AU - Dimitrovski, Dejan

AU - Kuvendziev, Stefan

AU - Leis, Albrecht

AU - Benischke, Ralf

AU - Micevski, Eftim

AU - Arsov, Ljubomir

PY - 2019/11/20

Y1 - 2019/11/20

N2 - This study is focused on the groundwater system of the Rashche Spring which serves as the main source of drinking water for the City of Skopje, located at the foot of the widely karstified Zeden massif. Investigations were made to define the mechanisms of groundwater recharge and its residence time. This was done using isotope tracers including 1H, 2H, 3H, and 18O in water samples from the local hydrological cycle, as well as noble gases for the application of 3H/3He dating method. A linear regression model of stable isotope data of precipitation samples resulted in the best-fit equation of δ2H = 7.46 · δ18O + 9.56, and shows a δ2H dependence from the altitude of precipitation formation with a gradient of − 3.06‰/100 m. Local precipitation, surface waters and Rashche Spring water showed a relatively narrow range of tritium values of 5 ± 1 TU, whereas the deep artesian water from Polog Valley yielded very low tritium contents (

AB - This study is focused on the groundwater system of the Rashche Spring which serves as the main source of drinking water for the City of Skopje, located at the foot of the widely karstified Zeden massif. Investigations were made to define the mechanisms of groundwater recharge and its residence time. This was done using isotope tracers including 1H, 2H, 3H, and 18O in water samples from the local hydrological cycle, as well as noble gases for the application of 3H/3He dating method. A linear regression model of stable isotope data of precipitation samples resulted in the best-fit equation of δ2H = 7.46 · δ18O + 9.56, and shows a δ2H dependence from the altitude of precipitation formation with a gradient of − 3.06‰/100 m. Local precipitation, surface waters and Rashche Spring water showed a relatively narrow range of tritium values of 5 ± 1 TU, whereas the deep artesian water from Polog Valley yielded very low tritium contents (

U2 - 10.1007/s12665-019-8674-5

DO - 10.1007/s12665-019-8674-5

M3 - Article

SN - 1866-6299

VL - 78

JO - Environmental Earth Sciences

JF - Environmental Earth Sciences

M1 - 656

ER -

Application of environmental isotope techniques for determining the origin and mechanisms of recharge of the Rashche Spring

Abstract

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