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Mount Elbrus
Mount Elbrus ( rus, links=no, Эльбрус, r=Elbrus, p=ɪlʲˈbrus; kbd, Ӏуащхьэмахуэ, 'uaşhəmaxuə; krc, Минги тау, Mingi Taw) is the highest and most prominent peak in Russia and Europe. It is situated in the western part of the Caucasus and is the highest peak of the Caucasus Mountains. The dormant volcano rises above sea level; it is the highest stratovolcano in Eurasia, as well as the tenth-most prominent peak in the world. The mountain stands in Southern Russia, in the Russian republic of Kabardino-Balkaria. Elbrus has two summits, both of which are dormant volcanic domes. The taller, western summit is ; the eastern summit is . The eastern summit was first ascended on 10 July 1829 by Khillar Khachirov, and the western summit in 1874 by a British expedition led by F. Crauford Grove and including Frederick Gardner, Horace Walker and the Swiss guide Peter Knubel. Etymology The name ''Elbrus'' seems to have a connection with ''Alborz'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The World Book Encyclopedia
The ''World Book Encyclopedia'' is an American encyclopedia. The encyclopedia is designed to cover major areas of knowledge uniformly, but it shows particular strength in scientific, technical, historical and medical subjects. ''World Book'' was first published in 1917. Since 1925, a new edition of the encyclopedia has been published annually. World Book, Inc. is based in Chicago, Illinois. According to the company, the latest edition, ''World Book Encyclopedia 2022'', contains more than 14,000 pages distributed along 22 volumes and also contains over 25,000 photographs. World Book also publishes children's non-fiction and picture books under the Bright Connections Media imprint, and educational development and supplemental instructional resources through Incentive Publications by ''World Book''. History World Book was founded in Chicago by publishers J. H. Hansen and John Bellow, who realized that existing encyclopedias were off-putting to readers. In 1915, they enlisted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Elevation Extremes By Region
The following three sortable tables list land surface elevation extremes by region. Elevation is the vertical distance above the reference geoid, an equipotential gravitational Equipotential surface, surface model of the Earth's sea level. __TOC__ Table of elevation extremes by geographic region Table of elevation extremes by geographic zone Table of elevation extremes by geographic hemisphere Gallery Everest, Himalayas.jpg, The summit of Mount Everest in China and Nepal is the highest point on Earth. Monte Aconcagua.jpg, The summit of Aconcagua is the highest point of Argentina and the Southern Hemisphere, Southern and Western Hemisphere, Western hemispheres. Nevado Huascaran.jpg, The summit of Huáscarán is the highest point of Peru and the Tropics. Denali Mt McKinley.jpg, The summit of Denali is the highest point of the United States and North America. Mt. Kilimanjaro 12.2006.JPG, The summit of Kilimanjaro is the highest point of Tanzania and Africa. Volcan Cayambe.JPG, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Dome
In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on Earth are lava dome forming. The geochemistry of lava domes can vary from basalt (e.g. Semeru, 1946) to rhyolite (e.g. Chaiten, 2010) although the majority are of intermediate composition (such as Santiaguito, dacite-andesite, present day) The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma. Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consist of rhyolite or dacite. Existence of lava domes has been suggested for some domed structures on the Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summit (topography)
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used only for a mountain peak that is located at some distance from the nearest point of higher elevation. For example, a big, massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are often considered ''subsummits'' (or ''subpeaks'') of the higher peak, and are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may also refer to the highest point along a line, trail, or route. The highest summit in the world is Mount Everest with a height of above sea level. The first official ascent was made by Tenzing Norgay and Sir Edmund Hillary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Republics Of Russia
The republics of Russia are 22 territories in the Russia, Russian Federation that each constitute a federal subjects of Russia, federal subject, the highest-level administrative division of Russian territory. They are one of several types of federal subject in Russia. The republics were originally created as nation states for ethnic minorities. The indigenous ethnic group that gives its name to the republic is referred to as the ''titular nationality''. However, due to centuries of Russian migration, each nationality is not necessarily a majority of a republic's population. Formed in the early 20th century by Vladimir Lenin and the Bolsheviks after the collapse of the Russian Empire in 1917, republics were meant to be nominally independent regions of Russian Soviet Federative Socialist Republic, Soviet Russia with the right to self-determination. Lenin's conciliatory stance towards Russia's minorities made them allies in the Russian Civil War and with the creation of the Soviet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Russia
Southern Russia or the South of Russia (russian: Юг России, ''Yug Rossii'') is a colloquial term for the southernmost geographic portion of European Russia generally covering the Southern Federal District and the North Caucasian Federal District. The term does not conform to any official areas of the Russian Federation as designated by the Russian Classification on Objects of Administrative Division (OKATO). History The Caucasus has been inhabited for millennia. Eastern Slavic tribes, like the Antes, inhabited Southern Russia at least from the 3rd century. Southern Russia played an important role in the influence of Byzantine culture on Russia. Persian culture has also left its traces in Southern Russia. At the beginning of the second millennium, between Volga and Don, Turkic tribes established in the South of Russia Tatar states. According to historical sources, the Russian lands in Southern Russia adopted the Islamic faith after contact with the Mongols. During th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Intelligence Agency
The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian foreign intelligence service of the federal government of the United States, officially tasked with gathering, processing, and analyzing national security information from around the world, primarily through the use of human intelligence (HUMINT) and performing covert actions. As a principal member of the United States Intelligence Community (IC), the CIA reports to the Director of National Intelligence and is primarily focused on providing intelligence for the President and Cabinet of the United States. President Harry S. Truman had created the Central Intelligence Group under the direction of a Director of Central Intelligence by presidential directive on January 22, 1946, and this group was transformed into the Central Intelligence Agency by implementation of the National Security Act of 1947. Unlike the Federal Bureau of Investigation (FBI), which is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CIA World Factbook
''The World Factbook'', also known as the ''CIA World Factbook'', is a reference resource produced by the Central Intelligence Agency (CIA) with almanac-style information about the countries of the world. The official print version is available from the Government Publishing Office. The ''Factbook'' is available in the form of a website that is partially updated every week. It is also available for download for use off-line. It provides a two- to three-page summary of the demographics, geography, communications, government, economy, and military of each of 267 international entities including U.S.-recognized countries, dependencies, and other areas in the world. ''The World Factbook'' is prepared by the CIA for the use of U.S. government officials, and its style, format, coverage, and content are primarily designed to meet their requirements. However, it is frequently used as a resource for academic research papers and news articles. As a work of the U.S. government, it is i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountain Peaks By Prominence
This is a list of mountain peaks ordered by their topographic prominence. Terminology The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or from sea level if there is no higher peak. The lowest point on that route is the col. For full definitions and explanations of ''topographic prominence'', ''key col'', and ''parent'', see topographic prominence. In particular, the different definitions of the parent of a peak are addressed at length in that article. ''Height'' on the other hand simply means elevation of the summit above sea level. Regarding parents, the ''prominence parent'' of peak A can be found by dividing the island or region in question into territories, by tracing the runoff from the key col (mountain pass) of every peak that is more prominent than peak A. The parent is the peak whose territory peak A resides in. The ''encirclement parent'' is found by tracing the contour below peak A's key col and picking the highe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasia
Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago and the Russian Far East to the east. The continental landmass is bordered by the Atlantic Ocean and Africa to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two continents is a historical social construct, as many of their borders are over land; thus, in some parts of the world, Eurasia is recognized as the largest of the six, five, or four continents on Earth. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on paleomagnetic data. Eurasia covers around , or around 36.2% of the Earth's total land area. It is also home to the largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dormant Volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates sl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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