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Alasht
Alasht () is a city in the Central District of Savadkuh County, Mazandaran province, Iran. Demographics Population At the time of the 2006 National Census, the city's population was 976 in 287 households. The following census in 2011 counted 874 people in 279 households. The 2016 census measured the population of the city as 1,193 people in 436 households. Geography Location Alasht is isolated by surrounding mountains, which gives it a cooler climate than most regions of the province. Natural resources Alasht has a natural spring and is also noted for being one of the few cryotherapy spots of the province. In addition, caves in and around Alasht are rich with minerals, mostly anthracite coal reserves. Climate Due to its location, Alasht is fairly cool throughout the year. Winter in the village is particularly harsh, causing most of the inhabitants to move to warmer areas for the season. However, the rainfall in the village is similar to the rest of the province, with appr ...
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Reza Shah
Reza Shah Pahlavi born Reza Khan (15 March 1878 – 26 July 1944) was shah of Iran from 1925 to 1941 and founder of the roughly 53 years old Pahlavi dynasty. Originally a military officer, he became a politician, serving as minister of war and Prime Minister of Iran, prime minister of Iran, and was elected shah following the deposition of the last monarch of the Qajar dynasty. Reza Shah's reign ended when he was forced to abdicate after the Anglo-Soviet invasion of Iran in 1941. He was succeeded by his eldest son, Mohammad Reza Shah. A moderniser, Reza Shah clashed with the Shia clergy and introduced social, economic, and political reforms during his reign, ultimately laying the foundations of the History of Iran#Late modern period, modern Iranian state. Therefore, he is regarded by many as the founder of modern Iran, until his ouster by the Islamic Revolution. At the age of 14, Reza Khan joined the Persian Cossack Brigade. He rose through the ranks, becoming a brigadier gener ...
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Mazandaran Province
Mazandaran Province (; ) is one of the 31 provinces of Iran. Its capital is the city of Sari. Located along the southern coast of the Caspian Sea and in the adjacent Central Alborz mountain range and Hyrcanian forests, it is bordered clockwise by Russia (across the sea), Golestan, Semnan, Tehran, Alborz, Qazvin, and Gilan Provinces. Mazandaran, founded in 1937, covers an area of 23,842 km2. The province has diverse natural resources, notably large offshore reservoirs of oil and natural gas. The diverse natural habitats of the province include plains, prairies, forests and rainforest stretching from the sandy beaches of the Caspian Sea to the rugged and snowcapped Alborz sierra, including Mount Damavand, one of the highest peaks and volcanoes in Asia. Mazandaran is a major producer of farmed fish,Freshw ...
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Savadkuh County
Savadkuh County () is in Mazandaran province, Mazandaran province, Iran. Its capital is the city of Pol-e Sefid, Mazandaran, Pol-e Sefid. History Darius the Great, the Achaemenid Empire, Achaemenid Persians, Persian monarch, mentions Pâtišvâreš in the Behistun Inscription, Behistun inscription as one of the territories under his rule. This Old Persian form subsequently became Middle Persian Pateŝxârgar and, following the Arab conquest, Perso-Arabic Faršavâdjar. The Greeks, Greek historiographer Strabo records this name as Prâxovâtrâs. In his inscription at Ka'ba-ye Zartosht, the second Sassanid Persians, Persian monarch Shapur I, refers to the region as Pâdešxâr. In the ''Karnamag-i Artaxshir-i Papakan, Book of Deeds of Ardashir, Son of Babag'', it is Patešxâr again. Ibn Isfandiyar and Mir Zahir al-Din Mar'ashi – the old geographers of Mazandaran – give its name as Patešxârgar as a large area in present-day Mazandaran, including Azerbaijan (disambiguatio ...
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Pahlavi Dynasty
The Pahlavi dynasty () is an List of monarchs of Iran, Iranian royal dynasty that was the Pahlavi Iran, last to rule Iran before the country's monarchy was abolished by the Iranian Revolution in 1979. It was founded in 1925 by Reza Shah, Reza Shah Pahlavi, a non-aristocratic Iranian soldier of Mazanderani people, Mazanderani origin, who took on the name of the Pahlavi scripts of the Middle Persian, Middle Persian language from the Sasanian Empire of Muslim conquest of Persia, pre-Islamic Iran. The dynasty largely espoused this form of Iranian nationalism rooted in the pre-Islamic era (notably based on the Achaemenid Empire) during its time in power, especially under its last king Mohammad Reza Pahlavi. The dynasty replaced the Qajar dynasty in 1925 after the 1921 Persian coup d'état, 1921 coup d'état, beginning on 14 January 1921 when 42-year-old soldier Reza Shah, Reza Khan was promoted by British General Edmund Ironside, 1st Baron Ironside, Edmund Ironside to lead the Britis ...
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Central District (Savadkuh County)
The Central District of Savadkuh County () is in Mazandaran province, Iran. Its capital is the city of Pol-e Sefid. History After the 2011 National Census, Kaseliyan and Sorkhkola Rural Districts, and the city of Zirab, were separated from the district in the establishment of Zirab District Zirab District () is in Savadkuh County, Mazandaran province, Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armen .... Demographics Population At the time of the 2006 census, the district's population was 42,679 in 11,396 households. The following census in 2011 counted 40,969 people in 12,545 households. The 2016 census measured the population of the district as 22,537 inhabitants in 7,831 households. Administrative divisions See also Notes References Districts of Mazandaran province Populated places in Savadkuh County {{Sav ...
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Iran
Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the northeast, Afghanistan to the east, Pakistan to the southeast, and the Gulf of Oman and the Persian Gulf to the south. With a Ethnicities in Iran, multi-ethnic population of over 92 million in an area of , Iran ranks 17th globally in both List of countries and dependencies by area, geographic size and List of countries and dependencies by population, population. It is the List of Asian countries by area, sixth-largest country entirely in Asia and one of the world's List of mountains in Iran, most mountainous countries. Officially an Islamic republic, Iran is divided into Regions of Iran, five regions with Provinces of Iran, 31 provinces. Tehran is the nation's Capital city, capital, List of cities in Iran by province, largest city and financial ...
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Cave
Caves or caverns are natural voids under the Earth's Planetary surface, surface. Caves often form by the weathering of rock and often extend deep underground. Exogene caves are smaller openings that extend a relatively short distance underground (such as rock shelters). Caves which extend further underground than the opening is wide are called endogene caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called Caving, ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorganisms, pressure, and atmospheric influences. Isotopic dating techniques can be applied to cave sedime ...
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Precipitation (meteorology)
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, rain and snow mixed ("sleet" in Commonwealth usage), snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and "precipitates" or falls. Thus, fog and mist are not precipitation; their water vapor does not condense sufficiently to precipitate, so fog and mist do not fall. (Such a non-precipitating combination is a colloid.) Two processes, possibly acting together, can lead to air becoming saturated with water vapor: cooling the air or adding water vapor to the air. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called shower (p ...
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Anthracite Coal
Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a submetallic lustre. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. The Coal Region of Northeastern Pennsylvania in the United States has the largest known deposits of anthracite coal in the world with an estimated reserve of seven billion short tons. China accounts for the majority of global production; other producers include Russia, Ukraine, North Korea, South Africa, Vietnam, Australia, Canada, and the United States. Total production in 2020 was 615 million tons. Anthracite is the most metamorphosed type of coal, but still represents low-grade metamorphism, in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite is difficult ...
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Mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2011): Minerals'; p. 1. In the series ''Geology: Landforms, Minerals, and Rocks''. Rosen Publishing Group. The Geology, geological definition of mineral normally excludes compounds that occur only in living organisms. However, some minerals are often biogenic (such as calcite) or organic compounds in the sense of chemistry (such as mellite). Moreover, living organisms often synthesize inorganic minerals (such as hydroxylapatite) that also occur in rocks. The concept of mineral is distinct from rock (geology), rock, which is any bulk solid geologic material that is relatively homogeneous at a large enough scale. A rock may consist of one type of mineral or may be an aggregate (geology), aggregate of two or more different types of minerals, spaci ...
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Spring (water)
A spring is a natural exit point at which groundwater emerges from an aquifer and flows across the ground surface as surface water. It is a component of the hydrosphere, as well as a part of the water cycle. Springs have long been important for humans as a source of fresh water, especially in arid regions which have relatively little annual rainfall. Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure. A spring produced by the emergence of geothermally heated groundwater is known as a hot spring. The yield of spring water varies widely from a volumetric flow rate of nearly zero to more than for the biggest springs. Formation Springs are formed when groundwater flows onto the surface. This typically happens when the water table reaches above the surface level, or if the terrain depresses sharply. Springs may also be formed as a result of karst topography, aquifers or volcanic activity. Springs have also been observe ...
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