Stable Isotope Ratios in Meteoric Waters in El Kef Region, Northwestern Tunisia: Implications for Changes of Moisture Sources
Received Date: Apr 17, 2014 / Accepted Date: May 15, 2014 / Published Date: Jun 15, 2014
Abstract
Natural oxygen and hydrogen stable isotopes (δ18O-H2O and δD-H2O) in modern precipitation collected in five months event in 2001 in Northwestern Tunisia (El Kef area) are presented in this paper. The total correlation between δ18O and δD is obtained as the Global Meteoric Water Line and the Local Meteoric Water Line of the Tunis-Carthage. Seasonal variations of the precipitation D-excess provide more details for changes in moisture sources. The lower δD and δ18O values observed at the El Kef site reflect the combined effects of oceanic and sea vapor sources “Atlantic–Mediterranean origin”, fractionation due to local precipitation, and slower equilibration of the larger raindrops nucleated by a maritime aerosol.
Keywords: Stable isotopes; Precipitation; Vapor sources; Northwestern Tunisia; El kef area
Citation: Hamed Y (2014) Stable Isotope Ratios in Meteoric Waters in El Kef Region, Northwestern Tunisia: Implications for Changes of Moisture Sources. J Earth Sci Clim Change 5: 203. Doi: 10.4172/2157-7617.1000203
Copyright: © 2014 Hamed Y. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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