Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/8031
Title: Comparison of the Quaternary travertine sites in the Denizli extensional basin based on their depositional and geochemical data
Authors: Özkul, Mehmet
Kele, S.
Gökgöz, Ali
Shen, C.-C.
Jones, B.
Baykara, Mehmet Oruç
Fórizs, I.
Keywords: Denizli Basin
Geochemistry
Quaternary
Travertine
Western Turkey
Climatic conditions
Hydrothermal system
Intrinsic and extrinsic parameters
Tectonic activity
Calcium
Deposition
Groundwater
Isotopes
Strontium
Limestone
comparative study
deposition
deposition velocity
meteoric water
parameterization
precipitation (chemistry)
sediment chemistry
stable isotope
tectonic setting
travertine
tufa
Turkey
Abstract: In the Denizli Basin (Turkey), located in the western Anatolian extensional province, travertine and tufa deposition has been an ongoing process for at least 600,000years. Travertine bodies, which are 30 to 75m thick and each covers areas of 1 to 34km2, are up to 1km3 in volume.Today, spring waters in this area have temperatures of 19 to 57°C, are of the Ca-Mg-HCO3-SO4 type in the Pamukkale, Kelkaya and Pinarbaşi areas and the Ca-Mg-SO4-HCO3 type at Çukurbag. Thermal waters along the northern margin of the basin are generally hotter than those in the east-southeast and south. The ?18O and ?D values of the spring waters indicate a meteoric origin. The average temperatures of the hydrothermal systems in the Denizli Basin appear to have decreased from Pleistocene to Holocene.Travertine, which formed from the hotter water, is more widespread than the tufa that formed in the cooler spring waters. Deposition of the travertine, which formed largely on slopes, in depressions, and along fissure ridges (mostly on northern basin margins), was controlled by the interplay between various intrinsic and extrinsic parameters. The travertines are formed largely of calcite with only minor amounts of aragonite in some of the vertically banded, crystalline crust, raft and pisoid travertines found in some of the northern sites. The aragonitic samples, rich in Sr, are typically found around the spring orifices and along the central axis of the fissure ridges.The stable isotope values of the travertine found in the northwest and southeast parts of the basin are different. The ?13C values of the northern travertine deposits are more positive (3.7 to 11.7‰ VPBD) than those found in the south-southeast areas (-4 to 5.8‰ VPDB). In contrast, the travertine and tufa in the southeastern areas have higher ?18O values (-15.2 to -7.8‰ VPDB) than those of the northern areas (-16.6 to -4.8‰ VPDB). Available evidence indicates that spring activity and associated travertine precipitation in the Denizli Basin were controlled largely by tectonic activity rather than by climatic conditions. © 2013 The Authors.
URI: https://hdl.handle.net/11499/8031
https://doi.org/10.1016/j.sedgeo.2013.05.018
ISSN: 0037-0738
Appears in Collections:Fen-Edebiyat Fakültesi Koleksiyonu
Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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