Travertines are sedimentary rocks of chemical origin in the composition of calcium carbonate (CaCO3). They occur as a result of the precipitation of calcium carbonate in groundwater under certain conditions. This precipitation forms travertines with soft lines over time. Conditions that play a role in accumulation; conditions such as evaporation, decrease in the amount of carbon dioxide (CO2) contained in the water, and decrease in the pressure on the water.
Travertines are formed by the accumulation of water-soluble rocks such as rock salt, limestone and gypsum after first melting in water. Travertines are a form of limestone deposited especially by hot springs. They usually have a fibrous or concentric appearance. They are available in white, tan, cream, and brown varieties.
They are usually formed by the rapid precipitation of calcium carbonate at the mouth of a hot spring or limestone cave. The formation of travertines due to accumulation may occur on the ground surface as well as underground, in natural spaces such as caves and galleries. The deposition rate affects the physical properties of travertines. The porous structure of the travertine is formed due to the deposition rate.
Travertines are in a layered structure. They may contain fossils. They react to acids and are affected by acid. Travertine produced from quarries in Turkey is preferred as a construction material in every region of the world. Produced travertines are produced as blocks, slabs or cut-to-size and are exported to every continent of the world by Kubilay's Stone.
One of the most beautiful travertine examples in the world is Pamukkale Travertines in Denizli, Turkey.
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