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Lut Desert
The Lut Desert, widely referred to as Dasht-e Lut (, "Emptiness Plain"), is a salt desert located in the provinces of Kerman and Sistan-Baluchestan, Iran. It is the world's 33rd-largest desert, and was included in UNESCO's World Heritage List on July 17, 2016. TThe name is derived from ''Lut'' which means 'bare, empty' in Persian and ''dasht'' which means 'plain' in Persian. The surface of its sand has been measured at temperatures as high as 70.7 °C (159.3 °F), the highest-known land surface temperature. Description Iran is climatically part of the Afro-Asian belt of deserts, which stretches from Mauritania all the way to Mongolia. Iran's geography consists of a plateau surrounded by mountains and divided into drainage basins. Dasht-e Lut is one of the largest of these drainage basins, long and wide, The area of the desert is about , the largest in Iran after Dasht-e Kavir. During the spring wet season, water briefly flows down from the Kerman mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinkhole
A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are also known as shakeholes, and to openings where surface water enters into underground passages known as ''ponor'', swallow hole or swallet. A ''cenote'' is a type of sinkhole that exposes groundwater underneath. ''Sink'', and ''stream sink'' are more general terms for sites that drain surface water, possibly by infiltration into sediment or crumbled rock. Most sinkholes are caused by Karst topography, karst processes – the chemical dissolution of carbonate rocks, collapse or suffosion processes. Sinkholes are usually circular and vary in size from tens to hundreds of Metre, meters both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may form gradually or suddenly, and are found worldwide. Formation Natural processes Sinkholes may capture surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalcolithic
The Chalcolithic ( ) (also called the Copper Age and Eneolithic) was an archaeological period characterized by the increasing use of smelted copper. It followed the Neolithic and preceded the Bronze Age. It occurred at different periods in different areas, but was absent in some parts of the world, such as Russia, where there was no well-defined Copper Age between the Stone and Bronze Ages. Stone tools were still predominantly used during this period. The Chalcolithic covers both the early cold working (hammering) of near pure copper ores, as exhibited by the likes of North American Great Lakes Old Copper complex, from around 6,500 BC, through the later copper smelting cultures. The archaeological site of Belovode, on Rudnik mountain in Serbia, has the world's oldest securely dated evidence of copper smelting at high temperature, from . The transition from Copper Age to Bronze Age in Europe occurred between the late 5th and the late In the Ancient Near East the Copper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuhbonan Mountains
Kuhbonan Mountains or Kuhbonan Highlands, (Kuhbonan also pronounced as Kuhbanan), are a group of mountains that are located in the northern part of Kerman province in Iran. Stretching in a northwest–southeast direction, the mountain range is situated in the northwestern, eastern, and southeastern part of the city of Kerman, northeast of the town of Zarand, and southwest of the town of Ravar. With an elevation of 4233 metres, the highest point of the range is Mount Pelvar (Kuh-e Pelvar) or Mount Palvar (Kuh-e Palvar) which is located southeast of the city of Kerman and about 25 kilometres east of the town of Mahan. Geology Kuhbonan Mountain Range was formed mainly in the Miocene during the Alpine orogeny as the Arabian plate finally collided with the Iranian plate and consequently this region was pressed against the resistant Lut block. Kuhbonan Range is made chiefly of Triassic and Jurassic rocks in the northwestern part, Jurassic rocks in the central section, and Upper Cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeological Survey
In archaeology, survey or field survey is a type of field research by which archaeologists (often Landscape archaeology, landscape archaeologists) search for archaeological sites and collect information about the location, distribution and organization of past human cultures across a large area (e.g. typically in excess of one hectare, and often in excess of many km2). Archaeologists conduct surveys to search for particular archaeological sites or kinds of sites, to detect patterns in the distribution of material culture over regions, to make generalizations or test hypotheses about past cultures, and to assess the risks that development projects will have adverse impacts on archaeological heritage. Archaeological surveys may be: (a) ''intrusive'' or ''non-intrusive'', depending on the needs of the survey team (and the risk of destroying archaeological record, archaeological evidence if intrusive methods are used) and; (b) ''extensive'' or ''intensive'', depending on the types of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helmand River
The Helmand river (Pashto/Dari: ; Ancient Greek: Ἐτύμανδρος, ''Etýmandros''; Latin: '), also spelled Helmend, or Helmund, Hirmand, is the longest river in Afghanistan and the primary watershed for the endorheic Sistan Basin. It originates in the Sanglakh Range of the Hindu Kush mountains in the northeastern part of Maidan Wardak Province, where it is separated from the watershed of the Kabul River by the Unai Pass. The Helmand feeds into the Hamun Lake on the border of Afghanistan and Iran. Etymology The name comes from the Avestan ''Haētumant'', literally "dammed, having a dam", which referred to the Helmand River and the irrigated areas around it. The word Haetumant is cognate with Sanskrit Setumatī meaning "one which has a dam." Geography The Helmand stretches for . It rises in the northeastern part of Maidan Wardak Province in the Hindu Kush mountains, about 40 km west of Kabul (), flowing southwestward through Daykundi Province and Uruzga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shahr-e Sukhteh
Shahr-e Sukhteh (, meaning "Burnt City"), c. 3550–2300 BC,Ascalone, E., and P. F. Fabbri, (2022)"Demographic considerations regarding the settlement and necropolis of Shahr i Sokhta" in: E. Ascalone and S.M.S. Sajjadi (eds.), Excavations and Researches at Shahr-i Sokhta 2 (= ERSS 2), Pishin Pajouh, Tehran, pp. 524, 525. also spelled as ''Shahr-e Sūkhté'' and ''Shahr-i Sōkhta'', is an archaeological site of a sizable Bronze Age urban settlement, associated with the Helmand culture. It is located in Sistan and Baluchistan Province, the southeastern part of Iran, on the bank of the Helmand River, near the Zahedan- Zabol road. It was placed on the UNESCO World Heritage List in June 2014. The reasons for the unexpected rise and fall of the city are still wrapped in mystery. Artifacts recovered from the city demonstrate a peculiar incongruity with nearby civilizations of the time and it has been speculated that Shahr-e Sukhteh might ultimately provide concrete evidence of a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acre
The acre ( ) is a Unit of measurement, unit of land area used in the Imperial units, British imperial and the United States customary units#Area, United States customary systems. It is traditionally defined as the area of one Chain (unit), chain by one furlong (66 by 660 Foot (unit), feet), which is exactly equal to 10 square chains, of a square mile, 4,840 square yards, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a hectare. Based upon the International yard and pound, international yard and pound agreement of 1959, an acre may be declared as exactly 4,046.8564224 square metres. The acre is sometimes abbreviated ac, but is usually spelled out as the word "acre".National Institute of Standards and Technolog(n.d.) General Tables of Units of Measurement . Traditionally, in the Middle Ages, an acre was conceived of as the area of land that could be ploughed by one man using a team of eight oxen in one day. The acre is still a statutory measure in the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectare
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, square metres (), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare (" hecto-" + "are") was thus 100 ''ares'' or km2 ( square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa () and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shahdad
Shahdad () is a city in, and the capital of, Shahdad District of Kerman County, Kerman province, Iran. Demographics Population At the time of the 2006 National Census, the city's population was 4,097 in 1,010 households. The following census in 2011 counted 5,942 people in 1,612 households. The 2016 census measured the population of the city as 5,217 people in 1,621 households. Geography Location Shahdad is the center of Shahdad District, which includes smaller cities and villages such as Sirch, Anduhjerd, Ebrahimabad, and Deh-e Seyf. The driving distance from the city of Kerman to Shahdad is 95 km. The local climate is hot and dry. The main agricultural produce is dates. Climate Shahdad has a hot desert climate (Köppen climate classification ''BWh''). The city is located at the edge of the Lut desert, which is one of the hottest and driest places in the world. The summers are long and extremely hot, though not as hot as the center of the Lut desert, usua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evaporite
An evaporite () is a water- soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. There are two types of evaporite deposits: marine, which can also be described as ocean deposits, and non-marine, which are found in standing bodies of water such as lakes. Evaporites are considered sedimentary rocks and are formed by chemical sediments. Formation Although all water bodies on the surface and in aquifers contain dissolved salts, the water must evaporate into the atmosphere for the minerals to precipitate. For this to happen, the water body must enter a restricted environment where water input into this environment remains below the net rate of evaporation. This is usually an arid environment with a small drainage basin fed by a limited input of water. When evaporation occurs, the remaining water is enriched in salts, and they precipitate after the water becomes saturated. Depositional environments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Rock
Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these reasons, in geology, volcanics and shallow hypabyssal rocks are not always treated as distinct. In the context of Precambrian shield geology, the term "volcanic" is often applied to what are strictly metavolcanic rocks. Volcanic rocks and sediment that form from magma erupted into the air are called "pyroclastics," and these are also technically sedimentary rocks. Volcanic rocks are among the most common rock types on Earth's surface, particularly in the oceans. On land, they are very common at plate boundaries and in flood basalt provinces. It has been estimated that volcanic rocks cover about 8% of the Earth's current land surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
