Origin and interactions of fluids circulating over the Amik Basin (Hatay, Turkey) and relationships with the hydrologic, geologic and tectonic settings

Date

2014-11-21

Author

YÜCE, GALİP
Italiano, F.
D'Alessandro, W.
Yalcin, T. H.
YASİN, DİDEM
Gulbay, A. H.
ÖZYURT, NACİYE NUR
Rojay, Fuat Bora
KARABACAK, VOLKAN
Bellomo, S.
Brusca, L.
Yang, T.
Fu, C. C.
Lai, C. W.
Özacar, Atilla Arda
Walia, V.

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We investigated the geochemical features of the fluids circulating over the Amik Basin (SE Turkey-Syria border), which is crossed by the Northern extension of the DSF (Dead Sea Fault) and represents the boundary area of three tectonic plates (Anatolian, Arabian and African plates). We collected 34 water samples (thermal and cold from natural springs and boreholes) as well as 8 gas samples (bubbling and gas seepage) besides the gases dissolved in the sampled waters. The results show that the dissolved gas phase is a mixture of shallow (atmospheric) and deep components either of mantle and crustal origin. Coherently the sampled waters are variable mixtures of shallow and deep ground waters, the latter being characterised by higher salinity and longer residence times. The deep groundwaters (from boreholes deeper than 1000 m) have a CH4-dominated dissolved gas phase related to the presence of hydrocarbon reservoirs. The very unique tectonic setting of the area includes the presence of an ophiolitic block outcropping in the westernmost area on the African Plate, as well as basalts located to the North and East on the Arabic Plate.

Subject Keywords

Geology, Geochemistry and Petrology

URI

https://hdl.handle.net/11511/39294

Collections

Department of Geological Engineering, Article