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On the Initial 14C Activity of Karst Aquifers with Short Mean Residence Time

Published online by Cambridge University Press:  18 July 2016

Ines Krajcar-Bronić ,
Nada Horvatinčić ,
Dušan Srdoč  and
Bogomil Obelić
Ines Krajcar-Bronić
Affiliation:
Rudjer Bošković Institute, P O B 101 6, 41001 Zagreb, Yugoslavia
Nada Horvatinčić
Affiliation:
Rudjer Bošković Institute, P O B 101 6, 41001 Zagreb, Yugoslavia
Dušan Srdoč
Affiliation:
Rudjer Bošković Institute, P O B 101 6, 41001 Zagreb, Yugoslavia
Bogomil Obelić
Affiliation:
Rudjer Bošković Institute, P O B 101 6, 41001 Zagreb, Yugoslavia
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Abstract

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The 14C activity of total dissolved inorganic carbon (DIC) as well as tritium activity and stable isotope content (13C, 2H, 18O) of spring water were measured for 3 consecutive years at 3 karst springs that feed Plitvice Lakes, NW Yugoslavia. The constant chemical and stable isotope composition and temperature indicated well mixed aquifers. A very short mean residence time of underground water (2–5 yr) was determined by tritium activity measurements. Measured C activities of 3 karst springs varied from 60.0% to 82.5%. The measured C activities were compared with calculated 14C activities based on various models using measured values of C activity of soil at different depths and 13C content of limestone, plants, and soils from the recharge area. Our measurements indicate that recharge systems in karst aquifers are open to the atmosphere. The atmospheric CO2 contributes to the 13C content and the C activity of ground water to an estimated extent which varies between 10 and 40% of DIC.

Type
IV. Methods and Applications
Information
Radiocarbon , Volume 28 , Issue 2A , 1986 , pp. 436 - 440
Copyright
Copyright © The American Journal of Science 

References

Eichinger, L, 1983, A contribution to the interpretation of 14C ground water ages considering the example of a partially confined sandstone aquifer, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 347–356.Google Scholar
Eriksson, E, 1962, Radioactivity in hydrology, in Israel, H and Krebs, A, eds, Nuclear radiation in geophysics: Berlin, Göttingen, Heidelberg, Springer Verlag.Google Scholar
Fontes, , Ch, J and Garnier, J M, 1979, Determination of the initial 14C activity of the total dissolved carbon; a review of the existing models and a new approach: Water Resources Research, v 15, p 399–413.Google Scholar
Geyh, M A, 1972, On the determination of the initial 14C content in ground water, in Rafter, T A and Grant-Taylor, T, eds, Internatl 14C conf, 8th, Proc: Wellington, New Zealand, Royal Soc New Zealand, p D58–D69.Google Scholar
Mook, W G, 1976, The dissolution-exchange model for dating ground water with 14C, interpretation of environmental isotope and hydrochemical data: Groundwater Hydrology, IAEA, Vienna, p 213–225.Google Scholar
Pearson, F J and Hanshaw, B B, 1970, Sources of dissolved carbonate species in ground water and their effects on 14C dating: Isotope Hydrology, IAEA, Vienna, p 271–285.Google Scholar
Srdoč, D, Sliepčević, A, Obelić, B, and Horvatinčić, N, 1977, Rudjer Bošković Institute radiocarbon measurements IV: Radiocarbon, v 19, p 465–475.CrossRefGoogle Scholar
Tamers, M A, 1967, Surface-water infiltration and ground water movement in arid zones of Venezuela: Isotopes in Hydrology, IAEA, Vienna, p 339–353.Google Scholar
Tamers, M A and Scharpenseel, H W, 1970, Sequential sampling of radiocarbon in ground water; Isotope Hydrology, IAEA, Vienna, p 241–257.Google Scholar
Thorstenson, D C, Weeks, E P, Haas, H and Fisher, D W, 1983, Distribution of gaseous 12CO2, 13CO2 and 14GO2 in the subsoil unsaturated zone of the western U S Great Plains, in Stuiver, M and Kra, R S, eds, Internatl 14C conf, 11th, Proc: Radiocarbon, v 25, no. 2, p 315–346.Google Scholar