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Badab-e Surt

Coordinates: 36°21′17″N 53°51′23″E / 36.35472°N 53.85639°E / 36.35472; 53.85639
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The red color of travertine terraces are due to iron carbonate

Badab Soort (Persian: باداب سورت) is a natural site in the Mazandaran Province in northern Iran, 95 kilometres (59 mi) south-east of the city of Sari, and 7 kilometres (4.3 mi) east of the village Orost. It comprises a range of stepped travertine terrace formations that have been created over thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside.[1]

Etymology

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Badab is a Persian compound of the words bād (gas) + āb (water), translating to "gassed water", referring to the springs' waters being carbonated mineral waters. Soort is an old name for the Orost village and a Persian word meaning intensity.[2]

Geology

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Yellow travertine terraces, seen from above

Badab Soort's springs are two distinct mineral springs with different natural characteristics, located at 1,840 metres (6,040 ft) above sea level. The first spring contains very salty water that gathers in a small natural pool; its water is considered to have medicinal properties, especially as a cure for rheumatism and some types of skin diseases and skin conditions. The second spring has a sour taste and is predominantly orange mainly due to the large iron oxide sediments at its outlet.[2]

Badab Soort's terraces are made of travertine, a sedimentary rock deposited by flowing water from the two distinct mineral springs; they were formed during Pleistocene and Pliocene geological periods. When the water, supersaturated with calcium carbonate and iron carbonate, reaches the surface, carbon dioxide degases from it, and mineral carbonates are deposited. The depositing continues until the carbon dioxide in the water balances the carbon dioxide in the air. Iron carbonate and calcium carbonate are deposited by the water as soft jellies, but they eventually harden into travertine.[1][2]

As a result, over the course of thousands of years the water from these two springs emanating from the mountain range have combined and resulted in a number of orange-, red- and yellow-colored pools shaped as a naturally formed staircase. The surrounding vegetation to the north consists of pine forests while to the east it mainly consists of short trees and shrubs; and rock quarries can be seen to the west of the site.[2]

Panoramic view

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Stepped travertine terraces at the mineral springs of Badab-e Surt, in Mazandaran Province, Iran

Similar places

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References

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  1. ^ a b "Cultural Heritage Agency of Semnan". Archived from the original on 2015-09-24. Retrieved 2010-12-07.
  2. ^ a b c d "Orost Village Official Site". Retrieved 2010-12-07.
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36°21′17″N 53°51′23″E / 36.35472°N 53.85639°E / 36.35472; 53.85639