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Andes
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{{Otherusesabout|the mountain system in South America}}
Image:Andes Chile Argentina.jpg thumb|300px|The Andes between [[Chile and Argentina]]
Image:Nasa_anden.jpg thumb|200px|right|Computer generated image of the Andes, made from a [[digital elevation model with a resolution of 30 arcseconds]]
The '''Andes''' is a vast mountain range forming a continuous chain of highland along the western coast of South America. It is roughly 1_E6_m 7,000 km (4,400 miles) long, 1_E5_m 500 km (300 miles) wide in some parts (widest between 18° to 20°S latitude), and of an average height of about 1_E3_m 4,000 m (13,000 feet).
The Andean range is composed principally of two great chains separated by a deep intermediate depression (geology) depression, in which arise other chains of minor importance, the chief of which is Chile's Cordillera de la Costa. Other small chains arise on the sides of the great chains. The ''Cordillera de la Costa'' starts from the southern extremity of the continent and runs in a northerly direction, parallel with the coast, being broken up at its beginning into a number of islands and afterwards forming the western boundary of the great central valley of Chile. To the north this coastal chain continues in small ridges or isolated hills along the Pacific Ocean as far as Venezuela, always leaving the same valley more or less visible to the west of the western great chain. The mountains extend over seven countries: Argentina, Bolivia, Chile, Colombia, Ecuador, Peru and Venezuela. The name ''Andes'' comes from the Quechua word ''andi'', which means "high crest."
The Andes range is the highest mountain range outside Asia, with the highest peak, Aconcagua, rising to 6,959 m (23,000 feet) above sea level. The summit of Mount Chimborazo in the Ecuadorean Andes is the point on the Earth's surface most distant from its center, because of the equatorial bulge. The Andes cannot match the Himalaya in height but do so in width and are more than twice as long.
Physical features
Geology
The formation of the Andes extends into the Paleozoic Era, when terrane accretion was the dominant process. It was during the Cretaceous Period that the Andes began to take their present form, by the uplifting, Fault (geology) faulting and Fold (geology) folding of sedimentary rocks sedimentary and metamorphic rocks of the ancient cratons to the east. Tectonic forces along the subduction zone along the entire west coast of South America where the Nazca Plate and a part of the Antarctic Plate are sliding beneath the South American Plate continue to produce an ongoing Orogeny orogenic event resulting in minor to major earthquakes and volcanic eruptions to this day. In the extreme south a major transform fault separates Tierra del Fuego from the small Scotia Plate. Across the 1,000 km wide Drake Passage lie the mountains of the Antarctic Peninsula south of the Scotia Plate which appear to be a continuation of the Andes chain.
The Andes range has many active volcanoes, the most famous being Cotopaxi, one of the highest active volcanos in the world.
The Andes can be divided into three sections: the Southern Andes in Argentina and Chile; the Central Andes, including the Chilean and Peruvian cordilleras; and the northern section in Venezuela, Colombia, and northern Ecuador consisting of two parallel ranges, the Cordillera Occidental and the Cordillera Oriental. The term ''cordillera'' comes from the Spanish word meaning 'rope'. The Andes range is approximately 200–300 km wide throughout its length, except in the Bolivian flexure where it is 640 km wide [http://www.andes.org.uk/andes-information-files/famous-andes-peaks.htm] [http://www.bartleby.com/65/co/Cotopaxi.html].
Climate
The climate in the Andes varies greatly depending on location, altitude, proximity to the sea. The southern section is rainy and cool, the central Andes are dry. The northern Andes are typically rainy and warm, with an average temperature of 18 °C in Colombia. The climate is known to change drastically. Tropical rainforests exist just miles away from the snow covered peak, Cotopaxi. The mountains have a large effect on the temperatures of nearby areas. The snow line depends on the location. It is at between 4,500–4,800 m in the tropical Ecuadorian, Colombian, Venezuelan, and northern Peruvian Andes, rising to 4,800–5,200 m in the drier mountains of southern Peru south to northern Chile south to about 30°S, then descending to 4,500 m on Aconcagua at 32°S, 2,000 m at 40°S, 500 m at 50°S, and only 300 m in Tierra del Fuego at 55°S; from 50°S, several of the larger glaciers descend to sea level ( Google Earth images).
Image:andes - punta arenas.jpg thumb|left|View of the mountains in the countryside just outside of [[Punta Arenas, Chile.]]
Plant and animal life
Tropical rainforests encircle the northern Andes. The cinchona, a source of quinine which is used to treat malaria, is found in the Bolivian Andes. The high-altitude '' Polylepis'' forests are present in the Andean areas of Ecuador, Peru and Bolivia. The trees, Queñua, Yagual, Quinua and other names that local people use to call them, can be found at altitudes of 4,500 m above sea level. Once abundant, the forests began disappearing during the Incan period when much of it was used for building material and cooking fuel. The trees are now considered to be highly endangered with only 10 percent of the original forests remaining [http://www.blueplanetbiomes.org/andes_climate_page.htm].
The llama can be found living at high altitudes, predominantly in the Peru and Bolivia. The alpaca, a type of llama, is raised for its wool. The nocturnal chinchilla, an endangered member of the rodent order, inhabits the Andes' alpine regions. The South American condor is the largest bird of its kind in the Western hemisphere. Other animals include the guemul, puma, camelids and, for birds, the partridge, parina, huallata, and coot. Llamas and pumas play important roles in many Andean cultures.
The people
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Mountaineering/Surveying
Woodbine Parish and Joseph Barclay Pentland surveyed a large part of the Bolivian Andes from 1826 to 1827.
Transportation
The people of the Andes are not well connected to urban regions. Due to the arduous terrain, vehicles are of little use. People generally walk to their destinations, using the llama as their primary pack animal.
Agriculture
The ancient peoples of the Andes such as the Incas have practiced irrigation techniques for over 6,000 years. Because of the mountain slopes, terracing has been a common practice. Maize and barley were important crops for these people. Currently, tobacco, cotton and coffee are the main export crops. The potato holds a very important role as an internally consumed crop.
By far the most important plant in terms of history and culture is coca, the leaves of which have been central to the Andean people for centuries. Coca has been a staple dietary supplement and cornerstone to Andean culture throughout much of its history.
Mining
Mining is quite prosperous in the Andes, with iron, gold, silver and copper being the main production minerals. The Andes are reputed to be one of the most important sources of these minerals in the world.
Peaks
This is a partial listing of the major peaks in the Andes mountain range—typically 5 km or more in height.
{{wrapper}}
| Image:Licancabur.jpg thumb|right|200px|[[Licancabur, Bolivia/Chile]]
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| Image:Llullaillaco.jpg thumb|right|200px|[[Llullaillaco, Chile/Argentina]]
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| Image:Aconcagua - Argentina - January 2005 - by Sergio Schmiegelow.jpg thumb|right|200px|[[Aconcagua, Argentina]]
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| Image:Chimborazo from southwest.jpg thumb|right|200px|[[Chimborazo, Ecuador]]
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| Image:Alpamayo.jpg thumb|right|200px|[[Alpamayo, Peru]]
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| Image:El misti.jpg thumb|right|200px|[[El Misti, Peru]]
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| Image:Huascaran.jpg thumb|right|200px|[[Huascarán, Peru]]
|}
Bolivia
* Ancohuma, 6,427 m
* Cabaray, 5,860 m
* Chacaltaya, 5,421 m
* Huayna PotosÃ, 6,088 m
* Illampu, 6,368 m
* Illimani, 6,438 m
* Macizo de Larancagua, 5,520 m
* Macizo de Pacuni, 5,400 m
* Nevado Anallajsi, 5,750 m
* Nevado Sajama, 6,542 m
* Patilla Pata, 5,300 m
* Tata Sabaya, 5,430 m
Bolivia/Chile
* Cerro Minchincha, 5,305 m
* Irruputuncu, 5,163 m
* Licancabur, 5,920 m
* Olca, 5,407 m
* Paruma, 5,420 m
* Pomerape, 6,348 m
Chile/Argentina
* Aconcagua, 6,962 m
* Acotango, 6,052 m
* Cerro Bayo, 5,401 m
* Cerro Escorial, 5,447 m
* Cordón del Azufre, 5,463 m
* Falso Azufre, 5,890 m
* Lastarria, 5,697 m
* Llullaillaco, 6,739 m
* Maipo (volcano) Maipo, 5,264 m
* Marmolejo, 6110 m
* Ojos del Salado, 6,893 m
* Olca, 5,407 m
* Parinacota, 6,348 m
* Monte Pissis Pissis, 6,795 m
* Sierra Nevada de Lagunas Bravas, 6,127 m
* Socompa, 6,051 m
Colombia
* Galeras, 4,276 m
* Pico Cristóbal Colón, 5,776 m
* Nevado del Ruiz, 5,389 m
Ecuador
* Antisana, 5,753 m
* Cayambe (volcano) Cayambe, 5,790 m
* Chimborazo (volcano) Chimborazo, 6,267 m
* Corazón, 4,790 m
* Cotopaxi, 5,897 m
* El Altar, 5,320 m
* Illiniza, 5,248 m
* Pichincha (volcano) Pichincha, 4,784 m
* Reventador, 3,562 m
* Sangay, 5,230 m
* Tungurahua, 5,023 m
Peru
* Alpamayo, 5,947 m
* Carnicero, 5,960 m
* El Misti, 5,822 m
* El Toro (Andes) El Toro, 5,830 m
* Huascarán, 6,768 m
* Jirishanca, 6,094 m
* Rasac, 6,040 m
* Rondoy, 5,870 m
* Sarapo, 6,127 m
* Seria Norte, 5,860 m
* Siula Grande, 6,344 m
* Yerupaja, 6,635 m
* Yerupaja Chico, 6,089 m
Venezuela
* Pico BolÃvar, 4,981 m
* Pico Humboldt, 4,940 m
* Pico La Concha, 4,870 m
* Pico Piedras Blancas, 4,740 m
Suggested reading
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External links
{{commons|Andes}}
- PhotoGlobe: Andes around Mt. Mercedario
- Andes geology Arizona Edu.
- Climate and animal life of the Andes
- Civilizations of Ancient Peru
Category:Mountain ranges of South America
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bg:Ð?нди
ca:Andes
cs:Andy
da:Andesbjergene
de:Anden
et:Andid
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eo:Andoj
eu:Andeak
fr:Cordillère des Andes
gl:Andes
ko:안�스 산맥
ia:Andes
is:Andesfjöll
it:Ande
he:הרי ×”×?× ×“×™×?
la:Andes
lv:Andi
lt:Andai
mk:Ð?нди
nl:Andes (gebergte)
ja:アンデス山脈
no:Andes
nn:Andes
pl:Andy
pt:Cordilheira dos Andes
ru:Ð?нды
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sk:Andy
sl:Andi
sr:Ð?нди
fi:Andit
sv:Anderna
th:เทืà¸à¸?เขาà¹?à¸à¸™à¸”ีส
uk:Ð?нди
zh:安地斯山脈
*** Shopping-Tip: Andes
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