caa a22 4500 44581554X CHVBK 20180317145227.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10040-010-0677-y doi (NATIONALLICENCE)springer-10.1007/s10040-010-0677-y Submarine and coastal karstic groundwater discharges along the southwestern Mediterranean coast of Turkey [Elektronische Daten] [C. Bayari, N. Ozyurt, Mehmet Oztan, Yalin Bastanlar, Guzden Varinlioglu, Hayati Koyuncu, Haldun Ulkenli, Serdar Hamarat] Décharge sous-marine d'une nappe karstique côtière sur le littoral Sud-Ouest de la Turquie A 120 km-long part of the southwestern coast of Turkey, with well-developed karst terrain in contact with the sea, has been investigated by systematic diving surveys to determine the submarine groundwater discharges (SGDs). The physical, chemical and isotopic data have been used to determine the rate of the fresh groundwater end member (FEM) and its temporal dynamics. About 150 SGDs have been detected by diving surveys employed mostly up to a depth of 30 m below sea level (bsl). Among those, 15 SGDs are in the form of coastal or submarine caves with entrances ranging between sea surface and 40 m bsl. The FEM contribution in SGDs ranges from a few percent to more than 80%. Stable isotope data suggest a range of mean recharge area elevations extending from the coast to more than 1,000 m inland. In many of the SGDs, the FEMs are characterized by tritium-based residence times ranging from recent to several decades. Hypothetical geochemical calculations of mixing between freshwater and seawater end members reveal that more than 45% of freshwater contribution is required for karst development in the SGDs. Models suggest a threshold pH of 7.6 or lower for the carbonate rock dissolution. Springer-Verlag, 2010 Submarine groundwater discharge nationallicence Hydrochemistry nationallicence Karst nationallicence Turkey nationallicence Environmental isotopes nationallicence Bayari C. International Research and Application Center For Karst Water Resources, Hacettepe University, 06800, Ankara, Turkey aut Ozyurt N. Department of Geological Engineering, Hydrogeological Eng. Section, Hacettepe University, 06800, Ankara, Turkey aut Oztan Mehmet Department of Geological Engineering, Hydrogeological Eng. Section, Hacettepe University, 06800, Ankara, Turkey aut Bastanlar Yalin Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut Varinlioglu Guzden Department of Interior Architecture and Environmental Design, Bilkent University, 06800, Ankara, Turkey aut Koyuncu Hayati Jeodijital Inc, Cukurambar Mah. 44. Cadde, No 2/1 Cankaya, 06520, Ankara, Turkey aut Ulkenli Haldun Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut Hamarat Serdar Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 399-414 1431-2174 19:2<399 2011 19 10040 https://doi.org/10.1007/s10040-010-0677-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0677-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bayari C. International Research and Application Center For Karst Water Resources, Hacettepe University, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Ozyurt N. Department of Geological Engineering, Hydrogeological Eng. Section, Hacettepe University, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Oztan Mehmet Department of Geological Engineering, Hydrogeological Eng. Section, Hacettepe University, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Bastanlar Yalin Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut NATIONALLICENCE 700 1- Varinlioglu Guzden Department of Interior Architecture and Environmental Design, Bilkent University, 06800, Ankara, Turkey aut NATIONALLICENCE 700 1- Koyuncu Hayati Jeodijital Inc, Cukurambar Mah. 44. Cadde, No 2/1 Cankaya, 06520, Ankara, Turkey aut NATIONALLICENCE 700 1- Ulkenli Haldun Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut NATIONALLICENCE 700 1- Hamarat Serdar Underwater Research Society, Cave Research and Diving Group, Tiflis Cad. 54/2 Cankaya, 06550, Ankara, Turkey aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/2(2011-03-01), 399-414 1431-2174 19:2<399 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer