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A salt lake or saline lake is a landlocked body of water that has a
concentration In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: '' mass concentration'', '' molar concentration'', ''number concentration'', ...
of
salt Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts; salt in the form of a natural crystalline mineral is known as rock salt or halite. Salt is present in vast quant ...
s (typically
sodium chloride 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. ...
) and other dissolved minerals significantly higher than most
lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
s (often defined as at least three grams of salt per litre). In some cases, salt lakes have a higher concentration of salt than sea water; such lakes can also be termed
hypersaline lake A hypersaline lake is a landlocked body of water that contains significant concentrations of sodium chloride, brines, and other salts, with saline levels surpassing that of ocean water (3.5%, i.e. ). Specific microbial species can thrive in ...
s, and may also be
pink lake A pink lake is a lake that has a red or pink colour. This is often caused by the presence of salt-tolerant algae that produces carotenoids, such as ''Dunaliella salina'', usually in conjunction with specific bacteria, which may vary from lake t ...
s on account of their colour. An alkalic salt lake that has a high content of
carbonate A carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula . The word ''carbonate'' may also refer to a carbonate ester, an organic compound containing the carbonate ...
is sometimes termed a soda lake. One saline lake classification differentiates between: *subsaline: 0.5–3
Per mille (from Latin , "in each thousand") is an expression that means parts per thousand. Other recognised spellings include per mil, per mill, permil, permill, or permille. The associated sign is written , which looks like a percent ...
(0.05-0.3%) *hyposaline: 3–20‰ (0.3-2%) *mesosaline: 20–50‰ (2-5%) *hypersaline: greater than 50‰ (5%)


Properties

Salt lakes form when the water flowing into the lake, containing salt or minerals, cannot leave because the lake is
endorheic An endorheic basin (; also spelled endoreic basin or endorreic basin) is a drainage basin that normally retains water and allows no outflow to other external bodies of water, such as rivers or oceans, but drainage converges instead into lakes ...
(terminal). The water then evaporates, leaving behind any dissolved salts and thus increasing its
salinity Salinity () is the saltiness or amount of salt (chemistry), 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 dimensio ...
, making a salt lake an excellent place for salt production. High salinity can also lead to halophilic flora and fauna in and around the lake; sometimes, in fact, the result may be an absence or near absence of multicellular life in the salt lake. If the amount of water flowing into a lake is less than the amount evaporated, the lake will eventually disappear and leave a
dry lake A dry lake bed, also known as a playa, is a basin or depression that formerly contained a standing surface water body, which disappears when evaporation processes exceeds recharge. If the floor of a dry lake is covered by deposits of alkaline c ...
(also called playa or salt flat). Brine lakes consist of water that has reached salt saturation or near saturation ( brine), and may also be heavily saturated with other materials. Most brine lakes develop as a result of high evaporation rates in an
arid A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most ...
climate with a lack of an outlet to the ocean. The high salt content in these bodies of water may come from minerals deposited from the surrounding land. Another source for the salt may be that the body of water was formerly connected to the ocean. While the water evaporates from the lake, the salt remains. Eventually, the body of water will become brine. Because of the density of brine, swimmers are more buoyant in brine than in fresh or ordinary salt water. Examples of such brine lakes are 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 Ban ...
and the
Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, particu ...
. Bodies of brine may also form on the ocean floor at
cold seep A cold seep (sometimes called a cold vent) is an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool. ''Cold'' does not mean that the temperature of the see ...
s. These are sometimes called brine lakes, but are more frequently referred to as brine pools. It is possible to observe waves on the surface of these bodies. Man-made bodies of brine are created for edible salt production. These can be referred to as brine ponds.


List

Note: Some of the following are also partly fresh and/or brackish water. *
Aral Sea The Aral Sea ( ; kk, Арал теңізі, Aral teñızı; uz, Орол денгизи, Orol dengizi; kaa, Арал теңизи, Aral teńizi; russian: Аральское море, Aral'skoye more) was an endorheic lake lying between Kazak ...
* Aydar Lake * Bakhtegan Lake *
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 A ...
*
Chilika Lake Chilika Lake is a brackish water lagoon, spread over the Puri, khordha and Ganjam districts of Odisha state on the east coast of India, at the mouth of the Daya River, flowing into the Bay of Bengal, covering an area of over . It is the bigge ...
* Chott el Djerid * Dabusun Lake *
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 Ban ...
* Devil's Lake *
Don Juan Pond Don Juan Pond is a small and very shallow hypersaline lake in the western end of Wright Valley (South Fork), Victoria Land, Antarctica, west from Lake Vanda. It is wedged between the Asgard Range to the south and the Dais Range to the north. On t ...
*
Garabogazköl The Garabogazköl (also spelt Kara-Bogaz-Gol; "Black Strait Lake"), or Garabogazköl Aylagy ("Black Strait Lake Bay"), is a shallow, highly-saline water-filled depression in the northwestern corner of Turkmenistan. It forms a lagoon of the Caspian ...
* Goose Lake *
Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, particu ...
* Grevelingen *
Laguna Colorada __NOTOC__ Laguna Colorada (''Red Lagoon'') is a shallow salt lake in the southwest of the altiplano of Bolivia, within Eduardo Avaroa Andean Fauna National Reserve and close to the border with Chile. Contents The lake contains borax islands, w ...
* Laguna Verde *
Lake Abert Lake Abert (also known as Abert Lake) is a large, shallow, alkali lake in Lake County, Oregon, United States. It is approximately long and wide at its widest point. It is located northeast of the small, unincorporated community of Valley Fal ...
* Lake Alakol * Lake Assal * Lake Balkhash *
Lake Barlee Lake Barlee is an intermittent salt lake. With a surface area of , it is the second largest lake in Western Australia. Description Lake Barlee is situated on the Yilgarn block southeast of Youanmi and north of Bullfinch, on the border betwe ...
* Lake Baskunchak *
Lake Bumbunga Lake Bumbunga is a salt lake located in the Mid North of the state of South Australia, between the town of Lochiel and the farming locality of Bumbunga, approximately 1.5 hours' drive from Adelaide. It is a pink lake, with its colour due to ce ...
* Lake Enriquillo * Lake Elton *
Lake Eyre Lake Eyre ( ), officially known as Kati Thanda–Lake Eyre, is an endorheic lake in east-central Far North South Australia, some north of Adelaide. The shallow lake is the depocentre of the vast endorheic Lake Eyre basin, and contains ...
* Lake Gairdner * Lake Hillier * Lake Karum * Lake Mackay * Lake Natron *
Lake Paliastomi __NOTOC__ Lake Paliastomi ( ka, პალიასტომი, also transliterated as Paleaostom) is a small lake near the city of Poti, Georgia, connected to the Black Sea by a narrow channel. Its surface area is 17.3 km2 and the mean depth ...
*
Lake Pontchartrain Lake Pontchartrain ( ) is an estuary located in southeastern Louisiana in the United States. It covers an area of with an average depth of . Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about from w ...
* Lake Texoma * Lake Torrens * Lake Tuz * Lake Tyrrell * Lake Urmia *
Lake Van Lake Van ( tr, Van Gölü; hy, Վանա լիճ, translit=Vana lič̣; ku, Gola Wanê) is the largest lake in Turkey. It lies in the far east of Turkey, in the provinces of Van and Bitlis in the Armenian highlands. It is a saline soda lake ...
* Lake Vanda *
Larnaca Salt Lake Larnaca Salt Lake ( el, Αλυκή Λάρνακας, tr, Larnaka Tuz Gölü) is a complex network of four salt lakes (3 of them interconnected) of different sizes to the west of the city of Larnaca. The largest is lake ''Aliki'', followed by lake ...
* Little Manitou Lake * Loch Hyne * Lonar Lake *
Maharloo Lake Maharloe Lake ( fa, دریاچه مهارلو) is a seasonal salt lake in the highlands of the area of Shiraz, Iran. southeast of Shiraz, the lake salt is rich in potassium and other salts. Rudkhane-ye-Khoshk, a seasonal river flowing through th ...
* Mar Chiquita Lake * Mono Lake * Nam Lake * Pangong Lake *
Pulicat Lake Pulicat Lagoon is the second largest brackish water lagoon in India, (after Chilika Lake), measuring . Major part of the lagoon comes under Tirupati district of Andhra Pradesh. The lagoon is one of the three important wetlands to attract nort ...
*
Qarhan Playa The Qarhan Playa or also misleadingly described as , is a playa in the Golmud and Dulan counties of Haixi Prefecture, Qinghai, China. Formerly a single unitary lake, it is now an expansive salt flat divided into four greater sections ( Dabu ...
* Redberry Lake *
Salton Sea The Salton Sea is a shallow, landlocked, highly saline body of water in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough that stretches to the Gul ...
* Sambhar Salt Lake *
Sarygamysh Lake The Sarygamysh Lake, also Sarykamysh or Sary-Kamysh (, , ), is a lake in Central Asia. It is about midway between the Caspian Sea and the Aral Sea. It is the largest lake in Turkmenistan, in which three quarters of the entire lake's area is loca ...
* Sawa Lake * Siling Lake *
South Hulsan Lake South or also known by other names, is a lake northeast of Golmud in Dulan County, Haixi Prefecture, Qinghai Province, China. A part of the Qarhan Playa, it lies east of Tuanjie Lake and south of North Hulsan Lake. Like the other lakes of th ...
* Sutton Salt Lake *
Uvs Lake Uvs Lake ( mn, Увс нуур, Uws nuur, ; russian: Озеро Убсу-Нур, Ozero Ubsu-Nur; zh, 乌布苏湖, wū bù sū hú, pinyin: ''Wū Bù Sū hú'') is a highly saline lake in an endorheic basin— Uvs Nuur Basin in Mongolia with a ...


Gallery

File:Shiraz and areal.jpg, Astronaut's photo of Bakhtegan and Maharloo salt lakes near
Shiraz Shiraz (; fa, شیراز, Širâz ) is the fifth-most-populous city of Iran and the capital of Fars Province, which has been historically known as Pars () and Persis. As of the 2016 national census, the population of the city was 1,565,572 p ...
,
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
. Salt lakes are particularly common in Iran. File:Берег Эльтон с высоты птичьего полёта.jpg, Lake Elton, Russia File:A118, Mono Lake, California, USA, 2004.jpg, Mono Lake, United States File:Salt transport by a camel train on Lake Assale (Karum) in Ethiopia.jpg, Salt transport by a camel train on Lake Karum in
Ethiopia Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the ...
.


See also

* * * Halophile – organism that thrives in high salt concentrations * * List of endorheic basins


References


External links

* {{Authority control Endorheic lakes Shrunken lakes Salts