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Stable isotopes oxygen-18 (δ18O) and deuterium (δD) and the hydrochemistry of the main springs of well-developed karst aquifers in Lar watershed in the Haraz basin, northern Iran, were investigated. Water samples were collected in the recession period for analysis of major ions and the stable isotopes. Predominant hydrochemical types of main karst springs samples were Ca2+ – Mg2+ – HCO 3 − ...
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