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Lake Karum
Lake Karum (also known as Lake Assale or Asale) is a salt lake in the Afar Region of Ethiopia. One of two salt lakes in the northern end of the Danakil Depression (the other one being Lake Afrera), it lies below sea level. The volcano Erta Ale rises southeast of this lake. Werner Munzinger, who traveled through the Afar Depression in 1867, recorded that this lake was fed by four streams: The Didic, the Ala, the Rira Guddy, and the Ragali or Awra, which is the only permanent stream flowing into Lake Karum.Munzinger"Narrative of a Journey through the Afar Country", ''Journal of the Royal Geographical Society'' 39 (1869), p. 204 North of Lake Karum is the former mining-settlement of Dallol. The lake is extremely salty and is surrounded by a salt-pan, which is still mined. The salt is transported by caravan to the rest of the country. ET Afar asv2018-01 img01 Lake Karum area.jpg, Salt flat at Lake Karum ET Afar asv2018-01 img60 Lake Karum area.jpg, Water of Lake Karum, vis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afar Region
The Afar Region (; ; ), formerly known as Region 2, is a Regions of Ethiopia, regional state in northeastern Ethiopia and the homeland of the Afar people. Its capital is the planned city of Semera, which lies on the paved Awash, Ethiopia, Awash–Assab highway. It is bordered by Eritrea to the north and Djibouti to the northeast; it also shares regional borders with the Tigray Region, Tigray, Amhara Region, Amhara, Oromia, Oromo and Somali Region, Somali regions. The Afar Triangle, the northern part of which is the Danakil Depression, is part of the Great Rift Valley, Ethiopia, Great Rift Valley of Ethiopia, and is located in the north of the region. It has the lowest point in Ethiopia and one of the lowest in Africa. The southern part of the region consists of the valley of the Awash River, which empties into a string of lakes along the Djibouti–Ethiopia border. Other notable landmarks include the Awash National Park. Demographics Based on the 2017 projections by the Centra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afar Depression
The Afar Triangle (also called the Afar Depression) is a geological depression caused by the Afar triple junction, which is part of the Great Rift Valley in East Africa. The region has disclosed fossil specimens of the very earliest hominins; that is, the earliest of the human clade, and it is thought by some paleontologists to be the cradle of the evolution of humans. The Depression overlaps the borders of Eritrea, Djibouti and the entire Afar Region of Ethiopia; and it contains the lowest point in Africa, Lake Assal, Djibouti, at below sea level. The Awash River is the main waterflow into the region, but it runs dry during the annual dry season, and ends as a chain of saline lakes. The northern part of the Afar Depression is also known as the Danakil Depression. The lowlands are affected by heat, drought, and minimal air circulation, and contain the hottest places (year-round average temperatures) of anywhere on Earth. The Afar Triangle is bordered as follows (see the to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Assal (Djibouti)
Lake Assal ( , Literal translation, lit. “Honey Lake”) is a Volcanic crater lake, crater lake in central-western Djibouti. It is located at the western end of Gulf of Tadjoura between Arta Region, and Tadjoura Region, touching Dikhil Region, at the top of the Great Rift Valley, some west of Djibouti (city), Djibouti city. Lake Assal is a saline lake that lies below sea level in the Afar Triangle, making it the lowest point on land in Africa and the third-lowest point on Earth after the Sea of Galilee and the Dead Sea. No outflow occurs from the lake, and due to high evaporation, the salinity level of its waters is 10 times that of the sea, making it the List of bodies of water by salinity, fifth most saline body of water in the world, behind Garabogazköl, Lake Retba, Gaet'ale Pond and Lake Elton. The salt in the lake is exploited under four concessions awarded in 2002 at the southeast end of the lake; the major share of production (nearly 80%) is held by Société d’Explo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camel Train
A camel train, caravan, or camel string is a series of camels carrying passengers and goods on a regular or semi-regular service between points. Despite rarely travelling faster than human walking speed, for centuries camels' ability to withstand harsh conditions made them ideal for communication and trade in the desert areas of North Africa and the Arabian Peninsula. Camel trains were also used sparingly elsewhere around the globe. Since the early 20th century they have been largely replaced by motorized vehicles or air traffic. Africa, Asia and the Middle East By far, the greatest use of camel trains occurs between North and West Africa by the Tuareg, Shuwa and Hassaniyya, as well as by culturally-affiliated groups like the Toubou, Hausa and Songhay. These camel trains conduct trade in and around the Sahara Desert and Sahel. Trains travel as far south as central Nigeria and northern Cameroon in the west, and northern Kenya in the east of the continent. In antiquity, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caravan (travellers)
A caravan (from Persian ) is a group of people traveling together, often on a trade expedition. Caravans were used mainly in desert areas and throughout the Silk Road, where traveling in groups helped in defense against bandits as well as in improving economies of scale in trade. Description Historically, caravans connecting East Asia and Europe often carried luxurious and lucrative goods, such as silks or jewelry. Caravans could therefore require considerable investment and were a lucrative target for bandits. The profits from a successful journey could be significant, comparable to those generated by later European spice trade. The luxurious goods brought by caravans attracted many rulers along important trade routes to construct caravanserais. These were roadside stations which supported the flow of commerce, information, and people across the network of trade routes covering Asia, North Africa, and southeastern Europe, and in particular along the Silk Road. Caravanserais p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Pan (geology)
Natural salt pans or salt flats are flat expanses of ground covered with salt and other minerals, usually shining white under the sun. They are found in deserts and are natural formations (unlike salt evaporation ponds, which are artificial). A salt pan forms by evaporation of a water pool, such as a lake or pond. This happens in climates where the rate of water evaporation exceeds the rate of that is, in a desert. If the water cannot drain into the ground, it remains on the surface until it evaporates, leaving behind minerals precipitated from the salt ions Solution (chemistry), dissolved in the water. Over thousands of years, the minerals (usually salts) accumulate on the surface. These minerals reflect the sun's rays and often appear as white areas. Salt pans can be dangerous. The crust of salt can conceal a quagmire of mud that can engulf a truck. The Qattara Depression in the eastern Sahara Desert contains many such traps which served as strategic barriers during World War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt
In common usage, salt is a mineral composed primarily of sodium chloride (NaCl). When used in food, especially in granulated form, it is more formally called table salt. In the form of a natural crystalline mineral, salt is also known as rock salt or halite. Salt is essential for life in general (being the source of the essential dietary minerals sodium and chlorine), and saltiness is one of the basic human tastes. Salt is one of the oldest and most ubiquitous food seasonings, and is known to uniformly improve the taste perception of food. Salting, brining, and pickling are ancient and important methods of food preservation. Some of the earliest evidence of salt processing dates to around 6000 BC, when people living in the area of present-day Romania boiled spring water to extract salts; a salt works in China dates to approximately the same period. Salt was prized by the ancient Hebrews, Greeks, Romans, Byzantines, Hittites, Egyptians, and Indians. Salt became a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dallol, Ethiopia
Dallol () is a locality in the Dallol woreda of northern Ethiopia. Located in Kilbet Rasu, Afar Region in the Afar Depression, it has a latitude and longitude of with an elevation of about below sea level. The Central Statistical Agency has not published an estimate for the 2005 population of the village, which has been described as a ghost town. Dallol currently holds the official record for record high average temperature for an inhabited location on Earth, and an average annual temperature of 35 °C (95 °F) was recorded between 1960 and 1966. Dallol is also one of the most remote places on Earth, but paved roads in the area were built in 2015. Still, the most important mode of transport besides off-road vehicles are the camel caravans that travel to the area to collect salt. In the region is the highly active hydrothermal system of Dallol, with numerous springs, terrace systems and fumaroles. History A railway from the port of Mersa Fatma in Eritrea to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Werner Munzinger
Werner Munzinger (4 April 1832 in Olten, Switzerland – 14 November 1875 in Aussa, Sultanate of Aussa) was a Swiss adventurer and administrator under the service of the Khedivate of Egypt. Life and career He was born in Olten, and studied science and history at the University of Bern, then later took courses in Oriental studies at Munich University and the Sorbonne. He was the son of Josef Munzinger, member of the Swiss Federal Council. In 1852 Munzinger arrived at Cairo, where he spent a year improving his Arabic. Entering a French mercantile house, he led a trading expedition to various parts of the Red Sea. Until 1855 he served as French consul at Massawa, when he moved to Keren where he spent the next six years exploring the lands of the Bogos. In 1861 Munzinger joined Theodor von Heuglin in an attempt to explore central Africa, but separated from him in November, proceeding along the Gash and Atbara to Khartoum. There he succeeded von Heuglin as leader of the exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 liter). In some cases, salt lakes have a higher concentration of salt than sea water; such lakes can also be termed hypersaline lake, and may also be pink lakes on account of their color. An alkalic salt lake that has a high content of carbonate is sometimes termed a soda lake. Salt lakes are classified according to salinity levels. The formation of these lakes is influenced by processes such as evaporation and deposition. Salt lakes face serious conservation challenges due to climate change, pollution and water diversion. Classification The primary method of classification for salt lakes involves assessing the chemical composition of the water within the lakes, specifically its salinity, pH, and the dominant ions present. Subsaline Sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erta Ale
Erta Ale (or Ertale or Irta'ale; Amharic: ኤርታሌ) is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia, which is itself part of the wider Afar Triangle (a barren desert region straddling Djibouti, Ethiopia and Eritrea). The volcano is located in the Danakil Depression, an area on the border between Ethiopia and Eritrea that is below sea level. It is the most active of the volcanoes in Ethiopia. Geology Erta Ale is high, with one or sometimes two active lava lakes at the summit which occasionally overflow on the south side of the volcano. It is notable for holding the longest-existing lava lake, present since at least 1906.Barnie, T.D., Oppenheimer, C., and Pagli, C. (2016). Magmatic Rifting and Active Volcanism. Geological Society, London, Special Publications, 420, 181–208. https://doi.org/10.1144/SP420.15 Volcanoes with lava lakes are rare: there were only eight in the world reported in 2019. ''Erta Ale'' means "smoking mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level
Mean sea level (MSL, often shortened to sea level) is an mean, average surface level of one or more among Earth's coastal Body of water, bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised geodetic datumthat is used, for example, as a chart datum in cartography and Navigation, marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured to Calibration, calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is instead a long-term average of tide gauge readings at a particular reference location. The term ''above sea level'' generally refers to the height above mean sea level (AMSL). The term APSL means above present sea level, comparing sea levels in the past with the level today. Earth's radius at sea level is 6,378.137 km (3,963.191 mi) at the equator. It is 6,356.752 km (3,94 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
