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Petregan Playa
Petregan playa (in Persian: دق پترگان) is a playa (دق ''dagh'' in Persian) in eastern Iran next to the border with Afghanistan. It is located in the Zirkuh County in South Khorasan Province South Khorasan Province ( fa, استان خراسان جنوبی ''Ostān-e Khorāsān-e Jonūbī'') is a province located in eastern Iran. Birjand is the centre of the province. The other major cities are Ferdows, Tabas and Qaen. In 2014, it wa ..., 610 m above sea level and most of its area lies within Iranian territory. Footprints of pre-historical animals have been found in this playa. Research by Iranian scholars on 40 footprints shows that these animals moved in groups from east to west and the area at that time was a muddy marshland. Sourcesirandeserts.com accessed Febr. 2009. (in Persian) {{DEFAULTSORT:Petregan Playa [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian Language
Persian (), also known by its endonym Farsi (, ', ), is a Western Iranian language belonging to the Iranian branch of the Indo-Iranian subdivision of the Indo-European languages. Persian is a pluricentric language predominantly spoken and used officially within Iran, Afghanistan, and Tajikistan in three mutually intelligible standard varieties, namely Iranian Persian (officially known as ''Persian''), Dari Persian (officially known as ''Dari'' since 1964) and Tajiki Persian (officially known as ''Tajik'' since 1999).Siddikzoda, S. "Tajik Language: Farsi or not Farsi?" in ''Media Insight Central Asia #27'', August 2002. It is also spoken natively in the Tajik variety by a significant population within Uzbekistan, as well as within other regions with a Persianate history in the cultural sphere of Greater Iran. It is written officially within Iran and Afghanistan in the Persian alphabet, a derivation of the Arabic script, and within Tajikistan in the Tajik alphabet, a der ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sink (geography)
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 or swamps, permanent or seasonal, that equilibrate through evaporation. They are also called closed or terminal basins, internal drainage systems, or simply basins. Endorheic regions contrast with exorheic regions. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest inland body of water. Basins with subsurface outflows which eventually lead to the ocean are generally not considered endorheic; they are cryptorheic. Endorheic basins constitute local base levels, defining a limit of erosion and deposition processes of nearby areas. Etymology The term was borrowed from French ''endor(rh)éisme'', coined from the combining form ''endo-'' (from grc, ἔνδον ''éndon'' 'with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of , making it the 17th-largest country. Iran has a population of 86 million, making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz. The country is home to one of the world's oldest civilizations, beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC, and reached its territorial height in the sixth century BC, when Cyrus the Great fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zirkuh County
Zirkuh County ( fa, شهرستان زيركوه) is in South Khorasan province, Iran. The capital of the county is the city of Hajjiabad. At the 2006 census, the region's population (as Zirkuh and Zohan Districts of Qaen County Qaen County ( fa, شهرستان قائن, also Romanized as Ghayen) is in South Khorasan province, Iran. The capital of the county is the city of Qaen. At the 2006 census, the county's population was 137,357 in 35,783 households. Retrieved 6 ...) was 38,129 in 9,339 households. Retrieved 12 November 2022 The following census in 2011 counted 41,081 people in 10,973 households. At the 2016 census the county's population was 40,155 in 11,178 households, by which time the districts had been separated from the county to become Zirkuh County. Administrative divisions The population history and structural changes of Zirkuh County's administrative divisions over three consecutive censuses are shown in the following table. The latest census shows three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Khorasan Province
South Khorasan Province ( fa, استان خراسان جنوبی ''Ostān-e Khorāsān-e Jonūbī'') is a province located in eastern Iran. Birjand is the centre of the province. The other major cities are Ferdows, Tabas and Qaen. In 2014, it was placed in Region 5. This new province, is but the old Quhistan which was included into greater Khorasan in the Iranian administrative planning. However, historically Qohistan forms a separate entity, with a distinct culture, history, environment and ecology. South Khorasan is one of the three provinces that were created after the division of Khorasan in 2004. While at the beginning, the newly created "South Khorasan" included only Birjand County and some new counties detached from that county (i.e. Nehbandan, Darmian and Sarbisheh), in subsequent years, all northern and western cities and territories of the old Quhistan (such as Qaen, Ferdows and Tabas) have been annexed into the South Khorasan. South Khorasan Province consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistory
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deserts Of Iran
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location. Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks, which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter, and the resulting fragments and rubble strewn over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography Of Razavi Khorasan Province
Geography (from Greek: , ''geographia''. Combination of Greek words ‘Geo’ (The Earth) and ‘Graphien’ (to describe), literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of Earth. The first recorded use of the word γεωγραφία was as a title of a book by Greek scholar Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. One such concept, the first law of geography, proposed by Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." Geography has been called "the world discipline" and "the bridge between the human and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
