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An Example From Kırşehir For Travertine Cones Grown up Along Active Fault Lines

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Author(s): Hayriye SAYHAN

Journal: Journal of Kirsehir Education Faculty
ISSN 1302-5007

Volume: 6;
Issue: 2;
Start page: 115;
Date: 2005;
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Keywords: Travertine cone | Travertine dome | Kırşehir city | Thermal water spring

ABSTRACT
Kırşehir city takes place in a tectonic depression. The main direction of the Kırşehir fault system which formed this tectonic depression is extends in direction of NW-SE. But there are many second faults which cutting this main fault system in N-S, E-W and NE-SW direction. Travertine cone takes place in Kuşdili quarter that is in the south-west of Kırşehir centrum.It has grown up over one of the N-S directed faults parallel to Kırşehir stream in this locality.There are two big caves in the center, one of which is contains water and the other is waterless. The height of the cone is about 11 meter from the surface of the thermal pool at the bottom of the watery cave. The diameter of the thermal pool is about 10 meter and its depth is about 70-80 cm. It has been formed inside the quaternary. Thermal water which firstly appeared as lineer on the active fault line, had first formed a travertine dome. The fissure, which provides the thermal water coming out as lineer on thefault line, had firstly formed a travertine dome.The cracks and/or fissures on the fault line contributing the discharge of the thermal water were blocked as a result of the acumulation of travertine. And then the discharge continued along the crackes and fissures.The travertine formation has been formed due to the fact that the water containing calcium bicarbonate acumulated at the latest phase of travertine cone formation.
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