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Chott Sidi Slimane
In geology, a chott, shott, or shatt (; ) is a salt lake in Africa's Maghreb that stays dry for much of the year but receives some water in the winter. The elevation of a chott surface is controlled by the position of the water table and capillary fringe, with sediment deflation occurring when the water table falls and sediment accumulation occurring when the water table rises.Swezey, C.S., 2003, The role of climate in the creation and destruction of continental stratigraphic records: An example from the northern margin of the Sahara Desert, in Cecil, C.B., and Edgar, N.T., eds., Climate Controls on Stratigraphy: SEPM (Society for Sedimentary Geology) Special Publication 77, p. 207-225. They are formed—within variable shores—by the spring thaw from the Atlas mountain range, along with occasional rainwater or groundwater sources in the Sahara, such as the Bas Saharan Basin. Water sources The chotts of the Sahara are fed intermittently during periods of infrequent rainfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chott Melrhir
Chott Melrhir, () also known as Chott Melghir or Chott Melhir, is an endorheic chott-kind of salt lake in northeastern Algeria. It is the westernmost part of a series of depressions which extend from the Gulf of Gabès into the Sahara. It was formerly known as Lake Tritonis. They were created between Miocene and Early Pleistocene as a result of compression accompanying the formation of the Atlas Mountains. With the maximum area of about , it is the largest lake in Algeria.В. М. Котляко�Мельгир (Chott Melrhir) Словарь современных географических названий (Dictionary of modern geographical names), 2003–2006 It lies almost entirely below sea level and contains the lowest point in Algeria, . Its size varies over the year and is usually larger than from east to west.Chott Melrhir< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Mars
The geology of Mars is the scientific study of the surface, crust, and interior of the planet Mars. It emphasizes the composition, structure, history, and physical processes that shape the planet. It is analogous to the field of terrestrial geology. In planetary science, the term ''geology'' is used in its broadest sense to mean the study of the solid parts of planets and moons. The term incorporates aspects of geophysics, geochemistry, mineralogy, geodesy, and cartography. A neologism, areology, from the Greek word ''Arēs'' (Mars), sometimes appears as a synonym for Mars's geology in the popular media and works of science fiction (e.g. Kim Stanley Robinson's Mars trilogy). The term areology is also used by the Areological Society. Geological map of Mars (2014) File:Geologic Map of Mars figure2.pdf, Figure 2 for the geologic map of Mars Composition of Mars Mars is a terrestrial planet, which has undergone the process of planetary differentiation. The ''InSight'' l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nouakchott
Nouakchott ( ) is the capital and largest city of Mauritania. Located in the southwestern part of the country, it is one of the largest cities in the Sahara. The city also serves as the administrative and economic center of Mauritania. Once a mid-sized coastal village, Nouakchott was selected as the capital for the nascent nation of Mauritania, with construction beginning in 1958. It was originally designed to accommodate a population of 15,000, but experienced significant population growth in the 1970s when many Mauritanians fled their home villages due to drought and increasing desertification. Many of the newcomers settled in slum areas of the city that were poorly maintained and extremely overcrowded. By the mid-1980s, Nouakchott's population was estimated to be between 400,000 and 500,000. , the city had a population of nearly 1.5 million people and serves as the hub of the Mauritanian economy. It is home to a deepwater port and Nouakchott–Oumtounsy International A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shatt Al-Arab
The Shatt al-Arab () is a river about in length that is formed at the confluence of the Euphrates and Tigris rivers in the town of al-Qurnah in the Basra Governorate of southern Iraq. The southern end of the river constitutes the Iran–Iraq border down to its mouth, where it discharges into the Persian Gulf. The Shatt al-Arab varies in width from about at Basra to at its mouth. It is thought that the waterway formed relatively recently in geological time, with the Tigris and Euphrates originally emptying into the Persian Gulf via a channel further to the west. Kuwait's Bubiyan Island is part of the Shatt al-Arab delta. The Karun, a tributary which joins the waterway from the Iranian side, deposits large amounts of silt into the river; this necessitates continuous dredging to keep it navigable. The area used to hold the largest date palm forest in the world. In the mid-1970s, the region included 17–18 million date palms: an estimated one-fifth of the world's 90 mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabkha
A sabkha () is a predominately coastal, supratidal mudflat or sandflat in which evaporite-saline minerals accumulate as the result of a semiarid to arid climate. Sabkhas are gradational between land and intertidal zone within restricted coastal plains just above normal high-tide level. Within a sabkha, evaporite-saline mineral sediments typically accumulate below the surface of mudflats or sandflats. Evaporite-saline minerals, tidal-flood, and aeolian deposits characterize many sabkhas found along modern coastlines. The accepted type locality for a sabkha is at the southern coast of the Persian Gulf, in the United Arab Emirates.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. Tucker, M.E. and Wright, V.P., 2009. ''Carbonate sedimentology.'' John Wiley & Sons. and Warren, J.K., 2006. Evaporites: sediments, resources and hydrocarbons. Springer Science & Business Media ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Djerid
el-Djerid, also al-Jarīd, (; Derja: ''Jrīd''; ) or more precisely the South Western Tunisia Region is a semi-desert natural region comprising three southern Tunisian Governorates, Gafsa, Kebili and Tozeur with adjacent parts of Algeria and Libya. Geography The region is characterised by bare pink hills with oases and several chotts (salt pans) such as Chott el Djerid in Tunisia. Economically the area is important for phosphate mining. Major towns include Gafsa and Tozeur. It remains the principal center of Ibāḍism in North Africa, with remaining Ibāḍī communities on Djerba in Tunisia, in the M'zab in Algeria, and in Jabal Nafusa in Libya. In medieval times, it often formed a politically separate entity under the control of Ibāḍī ''imams''. Location Jerid, Djerid'' or ''Bled el Djerid (Arabic : الجريد, literally "palm leaf"), is a semi-desert region situated in southwestern Tunisia, which extends to the contiguous areas of Algeria. In administrati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shatt Al Gharsah
Shatt al Gharsah, Chott el Gharsa () is a sedimentary basin and also intermittent salt lake (a chott) in Tunisia, near the border with Algeria Algeria, officially the People's Democratic Republic of Algeria, is a country in the Maghreb region of North Africa. It is bordered to Algeria–Tunisia border, the northeast by Tunisia; to Algeria–Libya border, the east by Libya; to Alger .... It has width of 20 kilometres and length of 50 kilometres. At 17 metres below sea level it is at the lowest point of the country. References {{Authority control Lakes of Tunisia Saline lakes of Africa Lowest points of countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chott El Fejej
In geology, a chott, shott, or shatt (; ) is a salt lake in Africa's Maghreb that stays dry for much of the year but receives some water in the winter. The elevation of a chott surface is controlled by the position of the water table and capillary fringe, with sediment deflation occurring when the water table falls and sediment accumulation occurring when the water table rises.Swezey, C.S., 2003, The role of climate in the creation and destruction of continental stratigraphic records: An example from the northern margin of the Sahara Desert, in Cecil, C.B., and Edgar, N.T., eds., Climate Controls on Stratigraphy: SEPM (Society for Sedimentary Geology) Special Publication 77, p. 207-225. They are formed—within variable shores—by the spring thaw from the Atlas mountain range, along with occasional rainwater or groundwater sources in the Sahara, such as the Bas Saharan Basin. Water sources The chotts of the Sahara are fed intermittently during periods of infrequent rain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chott Melrhir
Chott Melrhir, () also known as Chott Melghir or Chott Melhir, is an endorheic chott-kind of salt lake in northeastern Algeria. It is the westernmost part of a series of depressions which extend from the Gulf of Gabès into the Sahara. It was formerly known as Lake Tritonis. They were created between Miocene and Early Pleistocene as a result of compression accompanying the formation of the Atlas Mountains. With the maximum area of about , it is the largest lake in Algeria.В. М. Котляко�Мельгир (Chott Melrhir) Словарь современных географических названий (Dictionary of modern geographical names), 2003–2006 It lies almost entirely below sea level and contains the lowest point in Algeria, . Its size varies over the year and is usually larger than from east to west.Chott Melrhir< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chott Ech Chergui
Chott Ech Chergui () is a large endorheic salt lake in Saïda Province, northwestern Algeria. It is located at in the level terrain of the ''Hautes Plaines'' region between the Tell Atlas and the Saharan Atlas and is one of the largest lakes in Algeria. Ecology Chott Ech Chergui has an area of about 2000 km2 where water collects during the wet season, forming a number of large shallow salt lakes which become salt flats as they dry. The lake area has a length of about 160 km from ENE to WSW and lies at an average elevation of 1000 m. Chott Ech Chergui has been designated a Ramsar wetland of international importance. The Ramsar site has an area of 8555 km2 and is the natural environment for a number of threatened and vulnerable animal and plant species. See also *Geography of Algeria *''Hautes Plaines The Hautes Plaines ("High Plains", ), also known in French as Hauts Plateaux, is a steppe-like natural region located in the Atlas Mountains in northern Algeria. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chott El Djerid
Chott el Djerid ( ') also spelled ''Sciott Gerid'' and ''Shott el Jerid'', is a chott, a large endorheic salt lake in southern Tunisia. The name can be translated from the Arabic into English as "Lagoon of the Land of Palms". Geography The bottom of Chott el Djerid is located between 15 and 25 meters (about 50 to 80 feet) above sea level. The lake's width varies widely; at its narrowest point, it is only across, compared to its overall length of . At times, parts of it appear in various shades of white, green and purple. The narrow eastward inlet of the chott is also known as Chott el Fejej. It is the largest salt pan of the Sahara Desert, with a surface area of over 7,000 km2 (some sources state 5,000 km2). The site has a typical hot desert climate. Due to the harsh climate with mean annual rainfall of below 100 mm and daytime temperatures sometimes reaching 50 °C (122 °F) or more during summer with dense solar radiation, water evaporates from the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
