Akademik Veri Yönetim Sistemi
Journal of the Geological Society of India, cilt.59, sa.5, ss.419-430, 2002 (SCI-Expanded)
Hydrochemical and istopic study of groundwaters of Adiyaman region in Turkey is undertaken to classify groundwaters on the basis of their chemical characteristics, and examine their origin. The compositions of groundwaters in the calcareous rocks of the Adiyaman region reflect different combinations of fresh and saline groundwaters. The chemistry of the shallow groundwaters of Kömür Municipality Spring (KS) and well of General Directorate of Adiyaman District (FG), and especially of the major cations, is controlled by local rock compositions. While these are immature groundwaters geochemically, formation waters are generally mature groundwaters. Based on TDS classification, FG, KS and, Atatürk Dam Lake (ADL) samples are of fresh water (0-1000 ppm), Adiyaman (A44) and Çemberlitaş (Ç14) formation water samples are of brackish water (1000-10000 ppm), and other formation waters are of connate water (10000-30000 ppm). Adiyaman formation waters (A32 and A44) have a sequence of rCl>rHCO3>rSO4 and are undersaturated with respect to CaSO4. Formation waters of other oil fields have a sequence of rCl>rSO4>rHCO3 and are oversaturated with respect to CaSO4. Conservative ions in formation waters, such as Cl and Br, were used together with total dissolved solids in determining the evolution of waters and in the evaluation of mixing. In this respect, there is a transition between fresh and connate waters. It is concluded that Adiyaman and Çemberlitaş formation waters show greater mixing with fresh groundwaters than other formation waters of the Adiyaman region.