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International Space Station Imagery
Salar de Coipasa, Bolivia
high res (0.8 M) low res (57 K)
ISS033-E-006202 (20 Sept. 2012) --- Salar de Coipasa, Bolivia is featured in this image photographed by an Expedition 33 crew member on the International Space Station. The Salar de Coipasa, located in the Altiplano region of western Bolivia, covers an area of approximately 2,500 square kilometers. The word "salar" describes arid closed basins in which evaporation of mineral-rich waters leads to the formation of thick, flat-laying salt deposits. Salar de Coipasa is located to the southwest of the saline Lake Poopo and northwest of the largest salt flat in the world, Salar de Uyuni. At Coipasa, a crust composed of halite—common table salt—provides the brilliant white coloration characteristic of the Altiplano salars (right). While the environment of Salar de Coipasa is arid, it does receive constant water from the Lauca River flowing from the north; this feeds Lake (Lago) Coipasa that fills the northern end of the basin with shallow water (center). However, the water flow can drop off sharply during periods of drought. The waters of Lake Coipasa, and the white salt crust of the salar, also serve to highlight dark river sediments flowing into the basin along the northeastern shore. Dark volcanic rocks contrast sharply with the surrounding salt crust at right. While the western Andes Mountains contain many active volcanoes, the nearby Tata Sabaya volcano has not been historically active.

Curator: JSC PAO Web Team | Responsible NASA Official: Amiko Kauderer | Updated: 10/31/2012
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