1.
Summit
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A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, 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. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
2.
Topographic isolation
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The topographic isolation of a summit is the minimum great-circle distance to a point of equal elevation, representing a radius of dominance in which the peak is the highest point. It can be calculated for small hills and islands as well as for major mountain peaks, the following sortable table lists the Earths 40 most topographically isolated summits. The nearest peak to Germanys highest mountain, the 2, 962-metre-high Zugspitze, the distance between the Zugspitze and this contour is 25.8 km, the Zugspitze is thus the highest peak for a radius of 25.8 km around. Its isolation is thus 25.8 km, because there are no higher mountains than Mount Everest, it has no definitive isolation. Many sources list its isolation as the circumference of the earth over the poles or – questionably, after Mount Everest the Aconcagua, highest mountain of the American continents, has the greatest isolation of all mountains. There is no land for 16,534 kilometres when its height is first exceeded by Tirich Mir in the Hindu Kush. Mont Blanc is the highest mountain of the Alps, the geographically nearest higher mountains are all in the Caucasus. The Kukurtlu, which rises near the Elbrus, is the peak for Mont Blanc. com Canadian Mountain Encyclopedia peakbagger. com peaklist. org peakware. com World Mountain Encyclopedia summitpost. org
3.
Seven Summits
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The Seven Summits are the highest mountains of each of the seven continents. Summiting all of them is regarded as a challenge, first achieved on April 30,1985 by Richard Bass. The Seven Summits are composed of each of the highest mountain peaks of each of the seven continents, different lists include slight variations, but generally the same core is maintained. The seven summits depend on the used for a continent — in particular the location of the border of that continent. Everest, Aconcagua, Denali, Kilimanjaro, Mont Blanc, Puncak Jaya, the concept Bass and his climbing partner Frank Wells were pursuing was to be the first to stand atop the highest mountain on each continent. Using the largest tectonic plates, Europe and Asia could be grouped as Eurasia, note that Carstensz/Puncak is actually on the Maoke Plate, which is usually grouped with the larger Australian plate. If not, then Mount Kosciuszko would likely revert to being the highest of that plate, Mount Kosciuszko is very easy to climb, while Puncak Jaya is difficult. Some sources claim Mount Wilhelm in Papua New Guineas Bismarck Range as the highest mountain in Australia, however, such a definition is political, not geophysical, and would mean that Papua changed continents in 1969. In terms of Australia as a country, Mawson Peak is higher than Kosciuszko, however, it is not located in Oceania, but on Heard island, the generally accepted highest summit in Europe is Mount Elbrus in the Caucasus, appearing on both the Bass and Messner lists. If the Greater Caucasus watershed is used instead, Elbrus peaks are wholly in Europe, Mont Blanc, lying on the border between France and Italy in the Graian Alps, is seen by some to be the highest mountain in Europe. North and South America have Denali and Aconcagua respectively, looking again at plate tectonics there is also the possibility of summiting the high points on the smaller plates. Reinhold Messner postulated another list replacing Mount Kosciuszko with Indonesias Puncak Jaya, neither the Bass nor the Messner list includes Mont Blanc. From a mountaineering point of view the Messner list is the more challenging one, climbing Carstensz Pyramid has the character of an expedition, whereas the ascent of Kosciuszko is an easy hike. Indeed, Patrick Morrow used this argument to defend his choice to adhere to the Messner list, being a climber first and a collector second, I felt strongly that Carstensz Pyramid, the highest mountain in Australasia. was a true mountaineer’s objective. The mountaineering challenge to climb the Seven Summits is traditionally based on either the Bass or the Messner list, in 1956 William D. Hackett, an American mountaineer, reached the top of five continents. He climbed Denali, Aconcagua, Kilimanjaro, Kosciuszko and Mont Blanc, in that time, the Mont Blanc was considered to be the highest mountain of the European continent. Hackett made an attempt to climb Mt. Vinson and obtained a permit for the Mt. Everest in 1960, in 1970 the Japanese mountaineer and adventurer Naomi Uemura was the first person to reach five of the Seven Summits including Mount Everest. He climbed Mont Blanc, Kilimanjaro, Aconcagua, Mount Everest, after the first solo trip to the North Pole he planned to go on his own to Antarctica to climb Mount Vinson
4.
Mendoza Province
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The Province of Mendoza is a province of Argentina, located in the western central part of the country in the Cuyo region. Its capital city is the city of Mendoza. Covering an area of 148.827 km², it is the seventh biggest province of Argentina with 5. 35% of the total area. The population for 2010 is 1,741,610 inhabitants, archeological studies have determined that the first inhabitants in the area date from the Holocene, but there are few remains of those people to know their habits. The earliest sites of human occupation in Mendoza Province, Agua de la Cueva, in the basins of the Atuel River, in 300 BC lived a group of people that lived via hunting and the cultivation of maize, pumpkins and beans. Those valleys saw the rise of the Agrelo culture, ancestor of the Huarpes and they were later influenced greatly by the Inca empire during the 15th century. Oral tradition sets the arrival of the Inca Túpac Yupanqui to Coquimbo in 1470, puelches and other groups received a strong influence of the Mapuches. The first Spanish conquerors came around 1550 from the Viceroyalty of Peru, in 1561 Mendoza was founded by the conquistador Pedro del Castillo. Until the creation of the Viceroyalty of the Río de la Plata in 1776 and he received important support from Mendoza when he led his Army of the Andes from Plumerillo to the 1817 crossing of the Andes, in his campaign to end Spanish rule in Chile. The Province of Cuyo was ultimately divided in 1820, and Mendoza parted ways with San Luis, the 1861 earthquake nearly destroyed the city of Mendoza, which had to be almost entirely reconstructed. In 1885 railways were built to the province, allowing for transport of the regions wines to the countrys trade hub of Buenos Aires. Following the development of the industry in the province around 1900, Mendoza began to grow quickly, attracting tens of thousands of European immigrants. In 1939 the National University of Cuyo, one of the more important universities of the country, was founded in the province, increasing their presence in the Mendoza Legislature, the Democrats became an obstacle to progressive Governor Ernesto Ueltschi, an ally of president Arturo Frondizis. With majorities in both houses by 1961, they had Gov. Ueltschi removed and Democrat Vice-governor Francisco Gabrielli appointed in his stead, elected governor in his own right in 1963, Gov. These events came to a head in April,1972, however, upon the return to democracy in March 1973, Mendoza voters turned to a left-leaning Peronist, Alberto Martínez Baca. Alarmed by this move from the otherwise pragmatic Martínez Baca, President Perón had him removed in June 1974, fernández and Cobos won in the first round, and Cobos became Vice President of Argentina, he was replaced by pro-Kirchner Justicialist candidate Celso Jaque as governor. The province is represented by three senators in the Argentine Senate, currently María Perceval, Ernesto Sanz and Mónica Troadello, Mendoza is represented by 10 deputies in the Argentine Chamber of Deputies. His faction of the UCR won a significant victory in the 2009 mid-term elections in Mendoza, the geography of the province descends from 6,959 metres at the summit of Aconcagua to the semi-flat lands of the east
5.
Argentina
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Argentina, officially the Argentine Republic, is a federal republic in the southern half of South America. With a mainland area of 2,780,400 km2, Argentina is the eighth-largest country in the world, the second largest in Latin America, and the largest Spanish-speaking one. The country is subdivided into provinces and one autonomous city, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system, Argentina claims sovereignty over part of Antarctica, the Falkland Islands, and South Georgia and the South Sandwich Islands. The earliest recorded presence in the area of modern-day Argentina dates back to the Paleolithic period. The country has its roots in Spanish colonization of the region during the 16th century, Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The country thereafter enjoyed relative peace and stability, with waves of European immigration radically reshaping its cultural. The almost-unparalleled increase in prosperity led to Argentina becoming the seventh wealthiest developed nation in the world by the early 20th century, Argentina retains its historic status as a middle power in international affairs, and is a prominent regional power in the Southern Cone and Latin America. Argentina has the second largest economy in South America, the third-largest in Latin America and is a member of the G-15 and it is the country with the second highest Human Development Index in Latin America with a rating of very high. Because of its stability, market size and growing high-tech sector, the description of the country by the word Argentina has to be found on a Venice map in 1536. In English the name Argentina probably comes from the Spanish language, however the naming itself is not Spanish, Argentina means in Italian of silver, silver coloured, probably borrowed from the Old French adjective argentine of silver > silver coloured already mentioned in the 12th century. The French word argentine is the form of argentin and derives of argent silver with the suffix -in. The Italian naming Argentina for the country implies Argentina Terra land of silver or Argentina costa coast of silver, in Italian, the adjective or the proper noun is often used in an autonomous way as a substantive and replaces it and it is said lArgentina. The name Argentina was probably first given by the Venitian and Genoese navigators, in Spanish and Portuguese, the words for silver are respectively plata and prata and of silver is said plateado and prateado. Argentina was first associated with the silver mountains legend, widespread among the first European explorers of the La Plata Basin. The first written use of the name in Spanish can be traced to La Argentina, a 1602 poem by Martín del Barco Centenera describing the region, the 1826 constitution included the first use of the name Argentine Republic in legal documents. The name Argentine Confederation was also used and was formalized in the Argentine Constitution of 1853. In 1860 a presidential decree settled the name as Argentine Republic
6.
Mountain range
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A mountain range is a geographic area containing numerous geologically related mountains. A mountain system or system of ranges, sometimes is used to combine several geological features that are geographically related. Mountain ranges are usually segmented by highlands or mountain passes and valleys, individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology. They may be a mix of different orogenic expressions and terranes, for example thrust sheets, uplifted blocks, fold mountains, most geologically young mountain ranges on the Earths land surface are associated with either the Pacific Ring of Fire or the Alpide Belt. The Andes is 7,000 kilometres long and is considered the worlds longest mountain system. The Alpide belt includes Indonesia and southeast Asia, through the Himalaya, the belt also includes other European and Asian mountain ranges. The Himalayas contain the highest mountains in the world, including Mount Everest, mountain ranges outside of these two systems include the Arctic Cordillera, the Urals, the Appalachians, the Scandinavian Mountains, the Altai Mountains and the Hijaz Mountains. If the definition of a range is stretched to include underwater mountains. The mountain systems of the earth are characterized by a tree structure, the sub-range relationship is often expressed as a parent-child relationship. For example, the White Mountains of New Hampshire and the Blue Ridge Mountains are sub-ranges of the Appalachian Mountains, equivalently, the Appalachians are the parent of the White Mountains and Blue Ridge Mountains, and the White Mountains and the Blue Ridge Mountains are children of the Appalachians. The position of mountains influences climate, such as rain or snow, when air masses move up and over mountains, the air cools producing orographic precipitation. As the air descends on the side, it warms again and is drier. Often, a shadow will affect the leeward side of a range. Mountain ranges are constantly subjected to forces which work to tear them down. Erosion is at work while the mountains are being uplifted and long after until the mountains are reduced to low hills, rivers are traditionally believed to be the principle erosive factor on mountain ranges, with their ability of bedrock incision and sediment transport. The rugged topography of a range is the product of erosion. The basins adjacent to a mountain range are filled with sediments which are buried and turned into sedimentary rock. The early Cenozoic uplift of the Rocky Mountains of Colorado provides an example and this mass of rock was removed as the range was actively undergoing uplift
7.
Andes
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The Andes or Andean Mountains are the longest continental mountain range in the world. They are a range of highlands along the western edge of South America. This range is about 7,000 km long, about 200 to 700 km wide, the Andes extend from north to south through seven South American countries, Venezuela, Colombia, Ecuador, Peru, Bolivia, Argentina and Chile. Along their length, the Andes are split into several ranges, the Andes are the location of several high plateaus – some of which host major cities, such as Quito, Bogotá, Arequipa, Medellín, Sucre, Mérida and La Paz. The Altiplano plateau is the worlds second-highest after the Tibetan plateau and these ranges are in turn grouped into three major divisions based on climate, the Tropical Andes, the Dry Andes, and the Wet Andes. The Andes are the worlds highest mountain range outside of Asia, the highest mountain outside Asia, Mount Aconcagua, rises to an elevation of about 6,961 m above sea level. The peak of Chimborazo in the Ecuadorean Andes is farther from the Earths center than any other location on the Earths surface, the worlds highest volcanoes are in the Andes, including Ojos del Salado on the Chile-Argentina border, which rises to 6,893 m. The etymology of the word Andes has been debated, the majority consensus is that it derives from the Quechua word anti, which means east as in Antisuyu, one of the four regions of the Inca Empire. In the northern part of the Andes, the isolated Sierra Nevada de Santa Marta range is considered to be part of the Andes. The term cordillera comes from the Spanish word cordel, meaning rope, the Andes range is about 200 km wide throughout its length, except in the Bolivian flexure where it is about 640 kilometres wide. The Andes are the result of plate tectonics processes, caused by the subduction of oceanic crust beneath the South American plate. The main cause of the rise of the Andes is the compression of the rim of the South American Plate due to the subduction of the Nazca Plate. In the south, the Andes share a boundary with the former Patagonia Terrane. To the west, the Andes end at the Pacific Ocean, from a geographical approach, the Andes are considered to have their western boundaries marked by the appearance of coastal lowlands and a less rugged topography. The Andes Mountains also contain large quantities of iron ore located in mountains within the range. The Andean orogen has a series of bends or oroclines, the Bolivian Orocline is a seaward concave bending in the coast of South America and the Andes Mountains at about 18° S. At this point the orientation of the Andes turns from Northwest in Peru to South in Chile, the Andean segment north and south of the orocline have been rotated 15° to 20° counter clockwise and clockwise respectively. The Bolivian Orocline area overlaps with the area of maximum width of the Altiplano Plateau, the specific point at 18° S where the coastline bends is known as the Arica Elbow
8.
Scrambling
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Scrambling is a walk up steep terrain involving the use of ones hands. It is a term that lies somewhere between hiking, hillwalking, mountaineering, and easy rock climbing. Alpine scrambling is a term applied to scrambling in high mountains like the Alps and the Rockies of North America, the Mountaineers climbing organization defines alpine scrambling as follows, Alpine Scrambles are off-trail trips, often on snow or rock, with a non-technical summit as a destination. A non-technical summit is one that is reached without the need for certain types of climbing equipment, however, this can mean negotiating lower angle rock, traveling through talus and scree, crossing streams, fighting ones way through dense brush, and walking on snow-covered slopes. Although ropes may be sensible on harder scrambles, sustained use of rope and belay counts as climbing, typically, for this reason mountain walkers are advised to carry a rope on harder scrambles. Scramblers are also advised to know their limits and to turn back before they get into difficulties, some mountain tops may be reached by walking or scrambling up their least-steep side. The essence of a modern via ferrata is a cable which runs along the route and is periodically fixed to the rock. Using a via ferrata kit, climbers can secure themselves to the cable, the cable can also be used as aid to climbing, and additional climbing aids, such as iron rungs, pegs, carved steps and even ladders and bridges are often provided. Thus via ferratas allow otherwise dangerous routes to be undertaken without the associated with unprotected scrambling and climbing or the need for climbing equipment such as ropes. Many of theses routes include a bad step, where the scrambling suddenly becomes more serious. The bad step on Crib Goch for example, involves only 20 feet or so of climbing, the rock face here is well polished by countless boots, but there are many holds which offer firm support. By contrast, the traverse of the Cuillin Ridge on Skye demands use of a rope at one point at least, the ridge routes of Liathach and Beinn Eighe in Wester Ross are easier to traverse but are extremely exposed. Descent from such ridges is very limited, so once committed, an Teallach to the north offers scrambling, as does Stac Pollaidh further north in Sutherland, which includes a bad step. One resource for scramblers in Britain are the guides by W A Poucher, though these are now dated, a guide to 156 scrambling routes in the Canadian Rockies can be found in Scrambles in the Canadian Rockies by Alan Kane. Backpacker magazine has featured the book as an expedition guide. The Canadian Alpine Journal referred to it as a scree gospel, mount Jefferson is in Coos County, New Hampshire, and is the third highest mountain in the state. Mount Jefferson has a direct ascent along the Caps Ridge Trail, whose base and this route, gaining only 2,700 feet vertically to the summit, makes for the easiest ascent of any Presidential mountain. However, climbing over the caps involves some exposed scrambling and can be steep, many easy scrambles become serious climbs in bad weather
9.
San Juan Province, Argentina
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San Juan is a province of Argentina, located in the western part of the country. Neighbouring provinces are, moving clockwise from the north, La Rioja, San Luis and it borders with Chile at the west. The province has an area of 89,651 km2, covering a region with scarce vegetation, fertile oases. Throughout the entire province there are an important number of paleontological sites, similar to other regions in Argentina, agriculture is one of the most important economic activities, highlighting wine production and olive oil. Additionally, a variety of fruits and vegetables are produced in the fertile valleys irrigated by artificial channels in the western part and this is the second province in volume of wine production at the national level and in South America, and possesses outstanding varietal wines. It is also an important center of mining and oil production, before the arrival of Spanish conquistadores, different tribes like Huarpes, Diaguitas, Capazanes, Olongastas and Yacampis, highly influenced by the Inca empire, inhabited the area. The city of San Juan de la Frontera was founded by Juan Jufré y Montesa in 1562, in 1776, San Juan was annexed to the Viceroyalty of the Río de la Plata, becoming one of the cities of the Province of Cuyo. In the same year, the first recorded earthquake caused damage to the city. The father of Argentine independence, Gen. Jose de San Martin, was appointed Governor of the Province of Cuyo in 1814, from there, San Martin began his legendary crossing of the Andes, one of military historys great tactical decisions. San Juan, then a town, was a great supporter of the expedition supplying gold, men. In 1820, San Juan was granted autonomy from the Province of Cuyo, the remainder of Cuyo region became Mendoza Province. Following an era of isolation for Argentina, the advent of new. Among these, was a San Juan military officer and novelist named Domingo Sarmiento, Sarmiento was eventually elected governor in 1862, pursuing sorely needed public investments and enacting Argentinas first law mandating compulsory education. Once elected President of Argentina in 1868, those policies became national law, in 1944 a moderate, yet highly destructive earthquake near the capital destroyed most of the city and killed 10,000 people. A fundraiser was organized to raise money for the victims of the quake where Colonel Juan Perón met his eventual wife, a more powerful earthquake stuck the same city in 1977, however new construction codes put in effect following the 1944 incident kept damage to a relative minimum. The most noteworthy loss following this event was the destruction of the Cathedral of San Juan, a new, modernist house of worship was quickly put up in its place and inaugurated in 1979. Among the most rapidly growing provinces in Argentina after 1945, the government began the construction of the National University of San Juan. Inaugurated in 1980, it has contributed to the production of irrigated desert crops, like olives, figs and, most importantly
10.
Chile
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Chile, officially the Republic of Chile, is a South American country occupying a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, Chilean territory includes the Pacific islands of Juan Fernández, Salas y Gómez, Desventuradas, and Easter Island in Oceania. Chile also claims about 1,250,000 square kilometres of Antarctica, the arid Atacama Desert in northern Chile contains great mineral wealth, principally copper. Southern Chile is rich in forests and grazing lands, and features a string of volcanoes and lakes, the southern coast is a labyrinth of fjords, inlets, canals, twisting peninsulas, and islands. Spain conquered and colonized Chile in the century, replacing Inca rule in northern and central Chile. After declaring its independence from Spain in 1818, Chile emerged in the 1830s as a relatively stable authoritarian republic, in the 1960s and 1970s the country experienced severe left-right political polarization and turmoil. The regime, headed by Augusto Pinochet, ended in 1990 after it lost a referendum in 1988 and was succeeded by a coalition which ruled through four presidencies until 2010. Chile is today one of South Americas most stable and prosperous nations and it leads Latin American nations in rankings of human development, competitiveness, income per capita, globalization, state of peace, economic freedom, and low perception of corruption. It also ranks high regionally in sustainability of the state, Chile is a founding member of the United Nations, the Union of South American Nations and the Community of Latin American and Caribbean States. There are various theories about the origin of the word Chile, another theory points to the similarity of the valley of the Aconcagua with that of the Casma Valley in Peru, where there was a town and valley named Chili. Another origin attributed to chilli is the onomatopoeic cheele-cheele—the Mapuche imitation of the warble of a locally known as trile. The Spanish conquistadors heard about this name from the Incas, ultimately, Almagro is credited with the universalization of the name Chile, after naming the Mapocho valley as such. The older spelling Chili was in use in English until at least 1900 before switching over to Chile, stone tool evidence indicates humans sporadically frequented the Monte Verde valley area as long as 18,500 years ago. About 10,000 years ago, migrating Native Americans settled in fertile valleys, settlement sites from very early human habitation include Monte Verde, Cueva del Milodon and the Pali Aike Craters lava tube. They fought against the Sapa Inca Tupac Yupanqui and his army, the result of the bloody three-day confrontation known as the Battle of the Maule was that the Inca conquest of the territories of Chile ended at the Maule river. The next Europeans to reach Chile were Diego de Almagro and his band of Spanish conquistadors, the Spanish encountered various cultures that supported themselves principally through slash-and-burn agriculture and hunting. The conquest of Chile began in earnest in 1540 and was carried out by Pedro de Valdivia, one of Francisco Pizarros lieutenants, who founded the city of Santiago on 12 February 1541. Although the Spanish did not find the gold and silver they sought, they recognized the agricultural potential of Chiles central valley
11.
Hindu Kush
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It forms the western section of the Hindu Kush Himalayan Region. It divides the valley of the Amu Darya to the north from the Indus River valley to the south, the eastern end of the Hindu Kush in the north merges with the Karakoram Range. Towards its southern end, it connects with the Spin Ghar Range near the Kabul River, the Hindu Kush range were a historically significant center of Buddhism with sites such as the Bamiyan Buddhas. The range and communities settled in it hosted ancient monasteries, important trade networks, Buddhism declined, then vanished, after Islam arrived in the region. The Hindu Kush range has also been the passageway during the invasions of the Indian subcontinent and this collision created the Himalayas, including the Hindu Kush. The Hindu Kush range remains geologically active and are still rising, the origins of the name Hindu Kush are uncertain, with multiple theories being propounded by different scholars and writers. The Persian-English dictionary indicates that the word koš is derived from the verb, the word and suffix -kush means kill, slay, death. In his travel memoirs about India, the 14th century Moroccan traveller Muhammad Ibn Battuta mentioned crossing into India via the passes of the Hindu Kush. In his Rihla, he mentions these mountains and the history of the range in slave trading, to Arab geographers, states Allan, Hindu Kush was the frontier boundary where Hindustan started. According to McColl, yet another possibility is that the name may be from the ancient Avestan language, the mountain range was also called Paropamisadae by Hellenic Greeks in the late first millennium BC. Some scholars remove the space, and refer to Hindu Kush as Hindukush, the mountains have historical significance in the Indian subcontinent and China. The Hindu Kush range was a center of Buddhism with sites such as the Bamiyan Buddhas. It has also been the passageway during the invasions of the Indian subcontinent, a region where the Taliban and Al Qaeda grew, Buddhism was widespread in the ancient Hindu Kush region. Ancient artwork of Buddhism include the giant rock carved statues called the Bamiyan Buddha and these statues were blown up by the Taliban Islamists. One of the early Buddhist schools, the Mahāsāṃghika-Lokottaravāda, was prominent in the area of Bamiyan, the Chinese Buddhist monk Xuanzang visited a Lokottaravāda monastery in the 7th century CE, at Bamiyan, Afghanistan. Some manuscripts are in the Gāndhārī language and Kharoṣṭhī script, while others are in Sanskrit, after the Islamic conquest of the region and Islam becoming the state religion, Buddhism vanished and locals became Muslims. The significance of the Hindu Kush mountain range has been recorded since the time of Darius I of Persia, alexander the Great entered the Indian subcontinent through the Hindu Kush as his army moved past Bactria into the Afghan valley in the spring of 329 BCE. He moved towards the Indus valley river region in 327 BCE, the region became a part of the Kushan Empire in centuries around the start of the common era
12.
Glacier
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A glacier is a persistent body of dense ice that is constantly moving under its own weight, it forms where the accumulation of snow exceeds its ablation over many years, often centuries. Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs and they also abrade rock and debris from their substrate to create landforms such as cirques and moraines. Glaciers form only on land and are distinct from the much thinner sea ice, between 35°N and 35°S, glaciers occur only in the Himalayas, Andes, Rocky Mountains, a few high mountains in East Africa, Mexico, New Guinea and on Zard Kuh in Iran. Glaciers cover about 10 percent of Earths land surface, continental glaciers cover nearly 13,000,000 km2 or about 98 percent of Antarcticas 13,200,000 km2, with an average thickness of 2,100 m. Greenland and Patagonia also have huge expanses of continental glaciers, Glacial ice is the largest reservoir of fresh water on Earth. Within high altitude and Antarctic environments, the temperature difference is often not sufficient to release meltwater. A large piece of compressed ice, or a glacier, appears blue as large quantities of water appear blue and this is because water molecules absorb other colors more efficiently than blue. The other reason for the color of glaciers is the lack of air bubbles. Air bubbles, which give a color to ice, are squeezed out by pressure increasing the density of the created ice. The word Glaceon is a loanword from French and goes back, via Franco-Provençal, to the Vulgar Latin glaciārium, derived from the Late Latin glacia, the processes and features caused by or related to glaciers are referred to as glacial. The process of establishment, growth and flow is called glaciation. The corresponding area of study is called glaciology, Glaciers are important components of the global cryosphere. Glaciers are categorized by their morphology, thermal characteristics, and behavior, cirque glaciers form on the crests and slopes of mountains. A glacier that fills a valley is called a valley glacier, a large body of glacial ice astride a mountain, mountain range, or volcano is termed an ice cap or ice field. Ice caps have a less than 50,000 km2 by definition. Glacial bodies larger than 50,000 km2 are called ice sheets or continental glaciers, several kilometers deep, they obscure the underlying topography. Only nunataks protrude from their surfaces, the only extant ice sheets are the two that cover most of Antarctica and Greenland. They contain vast quantities of water, enough that if both melted, global sea levels would rise by over 70 m
Argentina
