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Pamukkale

UNESCO World Heritage Site
Hierapolis-Pamukkale
Name as inscribed on the World Heritage List
Type Mixed
Criteria iii, iv, vii
Reference 485
UNESCO region Europe, Turkey
Inscription history
Inscription 1988 (12th Session)

Pamukkale, meaning "cotton castle" in Turkish, is a natural site in Denizli Province in southwestern Turkey. The city contains hot springs and travertines, terraces of carbonate minerals left by the flowing water. It is located in Turkey's Inner Aegean region, in the River Menderes valley, which has a temperate climate for most of the year.

Travertine terrace formations at Pamukkale, Turkey. May 21, 2011

The ancient Greco-Roman and Byzantine city of Hierapolis was built on top of the white "castle" which is in total about 2,700 metres (8,860 ft) long, 600 m (1,970 ft) wide and 160 m (525 ft) high. It can be seen from the hills on the opposite side of the valley in the town of Denizli, 20 km away.

Tourism is and has been a major industry. People have bathed in its pools for thousands of years. As recently as the mid-20th century, hotels were built over the ruins of Hierapolis, causing considerable damage. An approach road was built from the valley over the terraces, and motor bikes were allowed to go up and down the slopes. When the area was declared a World Heritage Site, the hotels were demolished and the road removed and replaced with artificial pools. Wearing shoes in the water is prohibited to protect the deposits.

Contents

  • Geology 1
  • Archaeology 2
    • Museum 2.1
  • Tourist attraction 3
  • Protecting the thermal waters 4
  • Media 5
  • Sister cities 6
  • Similar places 7
  • Notes 8
  • External links 9

Geology

Panoramic view of travertine terraces at Pamukkale
Travertine Hot Springs at Pamukkale

Pamukkale's terraces are made of travertine, a sedimentary rock deposited by water from the hot springs.

In this area, there are 17 hot water springs in which the temperature ranges from 35 °C (95 °F) to 100 °C (212 °F). The water that emerges from the spring is transported 320 metres (1,050 ft) to the head of the travertine terraces and deposits calcium carbonate on a section 60 to 70 metres (200 to 230 ft) long covering an expanse of 24 metres (79 ft) to 30 metres (98 ft). When the water, supersaturated with calcium carbonate, reaches the surface, carbon dioxide de-gasses from it, and calcium carbonate is deposited. The depositing continues until the carbon dioxide in the water balances the carbon dioxide in the air. Calcium carbonate is deposited by the water as a soft jelly, but this eventually hardens into travertine.

This reaction is affected by the weather conditions, ambient temperature, and the flow duration. Precipitation continues until the carbon dioxide in the thermal water reaches equilibrium with the carbon dioxide in the atmosphere. Measurements made at the source of the springs find atmospheric levels of 725 mg/l carbon dioxide, by the time this water flows across the travertines, this figure falls to 145 mg/l. Likewise calcium carbonate falls from 1200 mg/l to 400 mg/l and calcium 576.8 mg/l to 376.6 mg/l. From these results it is calculated that 499.9 mg of CaCO3 is deposited on the travertine for every liter of water. This means that for a flow rate of 1 l/s of water 43,191 grams (1,523.5 oz) are deposited daily. The average density of a travertine is 1.48 g/cm3 implying a deposit of 29.2 dm3. Given that the average flow of the water is 465.2 l/s this implies that it can whiten 13,584 square metres (146,220 sq ft) a day, but in practice this area coverage is difficult to attain. These theoretical calculations indicate that up to 4.9 square kilometres (1.9 sq mi) it can be covered with a white deposit of 1 millimetre (0.039 in) thickness.

Archaeology

Museum

In this museum, alongside historical artifacts from Hierapolis, there are also artifacts from Laodiceia, Colossae, Tripolis, Attuda and other towns of the Lycos (Çürüksu) valley. In addition to these, the museum has a large section devoted to artifacts found at Beycesultan Hüyük that includes some of the most beautiful examples of Bronze Age craft.

Artifacts from the Caria, Pisidia and Lydia regions are also on display in this museum. The museum’s exhibition space consists of three closed areas of the Hierapolis Bath and the open areas in the eastern side which are known to have been used as the library and gymnasium. The artifacts in open exhibition space are mostly marble and stone. Hierapolis is broken down into ruins.

Tourist attraction

Pamukkale is a tourist attraction. It is recognized as a World Heritage Site together with Hierapolis. Hierapolis-Pamukkale was made a World Heritage Site in 1988.[1]

The underground volcanic activity which causes the hot springs also forced carbon dioxide into a cave, which was called the Plutonium, which here means "place of the god Pluto". This cave was used for religious purposes by priests of Cybele, who found ways to appear immune to the suffocating gas.

Tadpoles can be found in the pools.[2]

Protecting the thermal waters

The hotels built in the 1960s were demolished as they were draining the thermal waters into their swimming pools and caused damage to the terraces. Nowadays, water supply to the hotels are limited and they need to deposit the water used to the supply to generate.

Access to terraces are not allowed and visitors are asked to follow the pathway. Due to the new regulations, only small pools are allowed to be used.[3]

Media

Sister cities

The village of Pamukkale has two sister cities:

Similar places

Notes

  1. ^ "Hierapolis-Pamukkale World Heritage Site".  
  2. ^ "Pamukkale Turkey Hotel And Hostel Redesigned". PRLog. 2009-01-10. Retrieved 2009-09-02. 
  3. ^ Pamukkale Travetines Denizli
  4. ^ Garmchashma in Tajikistan
  5. ^ Satani Kamurj

External links

  • Pamukkale official site
  • Pamukkale travel guide from Wikivoyage
  • Pamukkale - spherical panorama 360 degree
  • UNESCO World Heritage site datasheet
  • The Marble Stairs of Heaven on Earth: Pamukkale
  • Pamukkale Travel Guide
  • Photos and first hand account of visit including Hierapolis and Cleopatra's pool

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