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Volcano Llullaillaco

auteur: Nasa/Novapix

référence: t-saarg-00004

Image Size 300 DPI: 24 * 36 cm

The summit of South America’s Llullaillaco Volcano has an elevation of 6,739 meters (22,110 feet) above sea level, making it the highest historically active volcano in the world. The current stratovolcano—a cone-shaped volcano built from successive layers of thick lava flows and eruption products like ash and rock fragments—is built on top of an older stratovolcano. This detailed astronaut photograph of Llullaillaco illustrates an interesting volcanic feature known as a coulée (image top right). Coulées are formed from highly viscous, thick lavas that flow onto a steep surface. Image taken on December 9, 2009 from the International space station (ISS).

Keywords for this photo:

2009 - ANDES - ARGENTINA - CHILE - EARTH - EARTH FROM SPACE - EXPEDITION 22 - LAVA - LLULLAILLACO - MOUNTAIN - SOUTH AMERICA - VOLCANO -