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Isotopic Analysis of Groundwater and Carbonate System in the Surdulica Geothermal Aquifer1

Published online by Cambridge University Press:  18 July 2016

Munevera Hadžišehović ,
Nada Miljević ,
Vojislava Šipka ,
Dušan Golobočanin  and
Radule Popović
Munevera Hadžišehović
Affiliation:
Boris Kidrič Institute of Nuclear Sciences, Vinča, P. O. Box 522, 11001 Belgrade, Yugoslavia
Nada Miljević
Affiliation:
Boris Kidrič Institute of Nuclear Sciences, Vinča, P. O. Box 522, 11001 Belgrade, Yugoslavia
Vojislava Šipka
Affiliation:
Boris Kidrič Institute of Nuclear Sciences, Vinča, P. O. Box 522, 11001 Belgrade, Yugoslavia
Dušan Golobočanin
Affiliation:
Boris Kidrič Institute of Nuclear Sciences, Vinča, P. O. Box 522, 11001 Belgrade, Yugoslavia
Radule Popović*
Affiliation:
Boris Kidrič Institute of Nuclear Sciences, Vinča, P. O. Box 522, 11001 Belgrade, Yugoslavia
*
Geoinstitute, Rovinjska 12, 11000 Belgrade, Yugoslavia
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Abstract

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We present here results of our investigation of the isotopic chemical composition of groundwater and carbonates in the Surdulica geothermal aquifer, Serbia. We considered the effects of carbonate dissolution and measured 13C, 14C, D, 18O, 3H, field pH, temperature, Na+, Ca2+, Mg2+, HCO−3; and other aqueous species from 30 springs and boreholes. Geothermal waters are supersaturated with calcite. Carbon isotope compositions vary with carbonate mineral dissolution. The δD and δ18O of groundwater samples fit the meteoric water line, and indicate that groundwater is recharged mainly from higher altitudes and the cold season. Different groundwater residence times point out two mechanisms for their formation: fissure flow for young waters and standard diffusion processes for old ones.

Type
Articles
Information
Radiocarbon , Volume 35 , Issue 2 , 1993 , pp. 277 - 286
Copyright
Copyright © The American Journal of Science 

Footnotes

1

This paper was presented at the 14th International 14C Conference, 20-24 May 1991, Tucson, Arizona.

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