Lake Baskunchak (russian: Баскунчак; kk, Басқұншақ, translit=Basqunshaq) is a

salt lake A salt lake or saline lake is a landlocked body of water that has a concentration of salts (typically sodium chloride) and other dissolved minerals significantly higher than most lakes (often defined as at least three grams of salt per litre). ...

of 115 km² in

Astrakhan Oblast Astrakhan Oblast (russian: Астраха́нская о́бласть, ''Astrakhanskaya oblast'', , ''Astrakhan oblysy'') is a federal subjects of Russia, federal subject of Russia (an oblast) located in southern Russia. Its administrative center ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

, located at , about 270 km north of the

Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...

, and 53 km east of the

Volga The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the List of rivers of Europe#Rivers of Europe by length, longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Cas ...

. Since 1997, the area is protected as part of the

Bogdinsko-Baskunchakski Nature Reserve Bogdinsko-Baskunchakski Nature Reserve (russian: Богдинско-Баскунчакский) (also Bogdinsko-Baskunchaksky) is a Russian 'zapovednik' (strict nature reserve) in a semi-arid area around two notable features: Lake Baskunchak, Russi ...

. The surface elevation of the lake is 21 m below

sea level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised g ...

. It is fed by a river that draws from an area of 11,000 km². The

salinity Salinity () is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal ...

of the lake is about 300 g/L. Since the 8th century, its salt was mined and traded along the

Silk Road The Silk Road () was a network of Eurasian trade routes active from the second century BCE until the mid-15th century. Spanning over 6,400 kilometers (4,000 miles), it played a central role in facilitating economic, cultural, political, and reli ...

. Nowadays, the lake's salt of distinct purity (99.8%

NaCl Sodium chloride , commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g ...

) covers 80% of

's salt production. Depending on demand, 1.5 million to 5 million tons of salt are mined per year. To the south of the lake, Mount Bolshoye Bogdo rises to 150 m above

, forming the highest elevation in the

Caspian Depression The Caspian Depression ( kk, Каспий маңы ойпаты, ''Kaspıı mańy oıpaty''; rus, Прикаспи́йская ни́зменность, p=prʲɪkɐˈspʲijskəjə ˈnʲizmʲɪnnəsʲtʲ, Caspian Lowland) or Pricaspian/Peri-Casp ...

. The hill is pushed up about 1 mm per year by a

salt dome A salt dome is a type of structural dome formed when salt (or other evaporite minerals) intrudes into overlying rocks in a process known as diapirism. Salt domes can have unique surface and subsurface structures, and they can be discovered using ...

Sinkhole A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are locally also known as ''vrtače'' and shakeholes, and to openi ...

s, and

Karst caves Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant r ...

of up to 1.5 km length lead through the hill. It also is the only area in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

where

Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...

lagerstätten surface. To the local

Kalmyk people The Kalmyks ( Kalmyk: Хальмгуд, ''Xaľmgud'', Mongolian: Халимагууд, ''Halimaguud''; russian: Калмыки, translit=Kalmyki, archaically anglicised as ''Calmucks'') are a Mongolic ethnic group living mainly in Russia, w ...

, it is a sacred location. On the coast of the lake, there are deposits of

medicinal clay The use of medicinal clay in folk medicine goes back to prehistoric times. Indigenous peoples around the world still use clay widely, which is related to geophagy. The first recorded use of medicinal clay goes back to ancient Mesopotamia. A wi ...

and mud. The high season of the tourist season here is in the summer months - from May to September. The natural conditions of the area are truly unique: the healing air is high in bromine and phytoncides, sulphide silt mud, similar in effect and composition to the

Dead Sea The Dead Sea ( he, יַם הַמֶּלַח, ''Yam hamMelaḥ''; ar, اَلْبَحْرُ الْمَيْتُ, ''Āl-Baḥrū l-Maytū''), also known by other names, is a salt lake bordered by Jordan to the east and Israel and the West Bank ...

mud, sodium chloride brine containing macro-complex and trace elements. Baskunchak lake

References

External links

Bogdinsko-Baskunchaksky Nature Reserve
{{DEFAULTSORT:Baskunchak Lakes of Astrakhan Oblast Endorheic lakes of Europe Saline lakes of Europe

See also

References

External links