File:ISS-36 Nevados de Chillan, Chile.jpg

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English: Nevados de Chillan, Chile is featured in this image photographed by an Expedition 36 crew member on the International Space Station.
  • This photograph highlights a large volcanic area located near the Chile-Argentina border. Like other historically active volcanoes in the central Andes ranges, the Nevados de Chillan were created by upwelling magma generated by eastward subduction of the dense oceanic crust of the Pacific basin beneath the less dense continental crust of South America. Rising magmas associated with this type of tectonic environment frequently erupt explosively, forming widespread ash and ignimbrite layers. They can also produce less explosive eruptions that form voluminous lava flows – layering together with explosively erupted deposits to build the classic cone-shaped edifice of a stratovolcano over geologic time.
  • The Nevados de Chillan includes three distinct volcanic structures, built within three overlapping calderas that extend along a north-northwest to south-southeast line. The snow-capped volcanic complex sits within the glaciated terrain of the central Andes – glacial valleys are visible at upper left, upper right, and lower right. The northwestern end of the chain is occupied by the 3,212-meter-high Cerro Blanco (also known as Volcan Nevado). The 3,089-meter-high Volcan Viejo (also known as Volcan Chillan) sits at the southeastern end; this volcano was active during the 17th-19th centuries. A group of lava domes known as Volcan Nuevo formed to the northwest of Volcan Viejo between 1906-1945, followed by an even younger dome complex that formed between 1973-1986 (Volcan Arrau; not indicated on the image). The last reported volcanic activity at Nevados de Chillan took place in 2009 (according to the Smithsonian Institution's Global Volcanism Network).
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Source http://spaceflight.nasa.gov/gallery/images/station/crew-36/html/iss036e007165.html
Author NASA
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS036-E-007165.

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This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: ISS036-E-7165.

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current23:30, 24 June 2013Thumbnail for version as of 23:30, 24 June 20134,256 × 2,832 (1.59 MB)Ras67 (talk | contribs)== {{int:filedesc}} == {{Information |Description={{en|1=Nevados de Chillan, Chile is featured in this image photographed by an Expedition 36 crew member on the International Space Station. * This photograph highlights a large volcanic area located nea...

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