Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/9542
Title: Hydrothermal fluids circulation and travertine deposition in an active tectonic setting: Insights from the Kamara geothermal area (western Anatolia, Turkey)
Authors: Brogi, A.
Alçiçek, Mehmet Cihat
Yalçiner, C.T.
Capezzuoli, E.
Liotta, D.
Meccheri, M.
Rimondi, V.
Keywords: Active tectonics
Fluid inclusion
Geothermal system
Thermal springs
Travertine
Deposition
Deposits
Faulting
Geophysics
Geothermal fields
Geothermal prospecting
Ground penetrating radar systems
Limestone
Seismology
Tectonics
Active tectonic settings
Extensional tectonics
Geothermal exploration
Geothermal systems
Neogene quaternaries
Geothermal springs
fault zone
fluid inclusion
geothermal system
hydrothermal fluid
tectonic evolution
tectonic setting
thermal spring
travertine
Anatolia
Denizli [Turkey]
Pamukkale
Turkey
Publisher: Elsevier B.V.
Abstract: Coexistence of thermal springs, travertine deposits and tectonic activity is a recurring feature for most geothermal areas. Although such a certainty, their relationships are debated mainly addressing on the role of the tectonic activity in triggering and controlling fluids flow and travertine deposition. In this paper, we present the results of an integrated study carried out in a geothermal area located in western Anatolia (Turkey), nearby the well-known Pamukkale area (Denizli Basin). Our study focused on the relationships among hydrothermal fluids circulation, travertine deposition and tectonic activity, with particular emphasis on the role of faults in controlling fluids upwelling, thermal springs location and deposition of travertine masses. New field mapping and structural/kinematics analyses allowed us to recognize two main faults systems (NW- and NE-trending), framed in the Neogene-Quaternary extensional tectonic evolution of western Anatolia. A geo-radar (GPR) prospection was also provided in a key-area, permitting us to reconstruct a buried fault zone and its relationships with the development of a fissure-ridge travertine deposit (Kamara fissure-ridge). The integration among structural and geophysical studies, fluids inclusion, geochemical, isotopic data and 230 Th/238 U radiometric age determination on travertine deposits, depict the characteristics of the geothermal fluids and their pathway, up to the surface. Hydrological and seismological data have been also taken in account to investigate the relation between local seismicity and fluid upwelling. As a main conclusion we found strict relationships among tectonic activity, earthquakes occurrence, and variation of the physical/chemical features of the hydrothermal fluids, presently exploited at depth, or flowing out in thermal springs. In the same way, we underline the tectonic role in controlling the travertine deposition, making travertine (mainly banded travertine) a useful proxy to reconstruct the seismological history of an area, as well as the characteristics of the parent geothermal fluids, adding an effective tool for geothermal exploration tasks. © 2016 Elsevier B.V.
URI: https://hdl.handle.net/11499/9542
https://doi.org/10.1016/j.tecto.2016.05.003
ISSN: 0040-1951
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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