Progress of Cryogenics and Isotopes Separation , ISSN: 1582-2575
2010, Volume 13, Issue 1

Hydrogen Isotopes, Oxigen-18 and Carbon-14 Used to Estimate Aquifer Recharge Conditions

Ionut Faurescu 1* , A. Feru 2 , Carmen Varlam 1 , Denisa Faurescu 1 , Irina Vagner 1 , S. Cuna 3 , C. Cosma 4

1 National Institute for Research and Development for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea, Uzinei Street no. 4, P.O. Box Raureni 7, 240050, Ramnicu Valcea, Romania
2 National Company of Mineral Waters, Bucharest, Romania
3 National Institute of Research-Developement for Isotopic and Molecular Technologies, Cluj-Napoca, Romania
4 Faculty of Environmental Science, “Babes-Bolyai” University, Cluj-Napoca, Romania

*Corresponding author: Ionut Faurescu, E-mail:

Published: May 2010


This paper combines radiocarbon age and other environmental isotopes to estimate recharge conditions to a local groundwater aquifer. Estimation was carried out using 14C and other environmental isotopes, such as tritium, deuterium and Oxygen-18. Three types of samples were used: rainfall, surface water and underground water. Radiocarbon and tritium measurements were carried out using liquid scintillation counting. Deuterium and oxygen-18 isotopic composition was determined by mass spectrometry. Mean transit velocities in upper part of aquifer located in volcanic-sedimentary formations was in a range between 0.2 and 1.3 m/year with mean value of 0.9 m/year. Mean transit velocity, specific to aquifers ensemble located in stratovolcanic andesite formations and volcanic-sedimentary formations, is about 2.3 m/year. Results obtained together with similar data from nearby areas, are sufficient to estimate recharge conditions of studied aquifer.   


Radiocarbon, environmental isotopes, groundwater, aquifer.

Tag search Radiocarbon environmental isotopes groundwater aquifer