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Encyclopedia > Mojanda
Mojanda
Elevation: 13,986 ft (4,263 m)
Location: Imbabura Province, Ecuador
Range: Andes
Coordinates: 0.13° N 78.27° W
Type: Inactive stratovolcano
Age of rock:
Last eruption: Middle Pleistocene

Mojanda is an inactive stratovolcano of the Eastern Cordillera of the Andes in northern Ecuador. A summit caldera, which was produced by an explosive Plinian Eruption that marked the end of Mojanda activity 200,000 years ago, is presently occupied by three lakes: Caricocha (the largest), Yanacocha, and Huarmicocha.[1] They received protected status in 2002. A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ... Imbabura is a province in Ecuador. ... The most general definition of a mountain range is a group of mountains bordered by lowlands. ... The Andes between Chile and Argentina 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. ... Map of Earth showing lines of latitude (horizontally) and longitude (vertically); large version (pdf) The geographic (earth-mapping) coordinate system expresses every horizontal position on Earth by two of the three coordinates of a spherical coordinate system which is aligned with the spin axis of the Earth. ... Mountains can be characterized in several ways. ... A stratovolcano, is a tall, conical mountain (volcano) composed of both hardened lava and volcanic ash. ... The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ... For other uses, see Volcano (disambiguation). ... The Middle Pleistocene is the central part of the Pleistocene Epoch from about 780,000 YA to the penultimate cold pulse at about 125,000 YA. Millions of Years Categories: Graphical timelines | Geology stubs | Pleistocene ... A stratovolcano, is a tall, conical mountain (volcano) composed of both hardened lava and volcanic ash. ... The Andes between Chile and Argentina 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. ... Crater Lake, Oregon A caldera is a volcanic feature formed by the collapse of a volcano into itself. ... The Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U.S. Geological Survey and Steve Self at the University of Hawaii in 1982 to provide a relative measure of the explosiveness of volcanic eruptions. ...


Mojanda is actually a complex of two volcanoes which were active simultaneously. The volcanic vents are only 3 km apart. The other volcano, which produced at least two Plinian Eruptions of its own, is known as Fuya Fuya. Fuya Fuya partially collapsed around 165,000 years ago, creating a large caldera to the West. A new volcanic cone and other lava domes subsequently extruded inside the caldera, probably during the Late Pleistocene.[2] Pu‘u ‘Ō‘ō, a cinder-and-spatter cone on Kilauea, Hawaii Volcanic cones are among the simplest volcano formations. ... In volcanology, a lava dome is mound-shaped growth resulting from the eruption of high-silica lava (such as rhyolite) from a volcano. ... Extrusive refers to a mode of igneous rock formation, in which hot magma from inside the Earth flows out (extrudes) onto the surface. ... Late Pleistocene (also known as Upper Pleistocene or the Tarantian) is a stage of the Pleistocene Epoch. ...


The high altitude grasslands and shrublands of Mojanda, which lie above the cloud forests, are collectively known as páramo. They are frequently grazed by cattle. For the climate of the mountains named the Alps, see climate) for a region above the tree-line. ... The cloud forest of Monteverde , Costa Rica A cloud forest is a generally tropical or subtropical evergreen montane forest characterized by a high incidence of low-level cloud cover, usually at the canopy level. ... Paramo is the name given to an elevated track of desert (montane grasslands and shrublands) on the Andes. ... Binomial name Bos taurus Linnaeus, 1758 Cattle (called cows in vernacular usage, or kine [archaic]) are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. ...

Caricocha in the Mojanda caldera. On the opposite side of lake, the páramo has been burned away to promote new growth for cattle grazing.
Enlarge
Caricocha in the Mojanda caldera. On the opposite side of lake, the páramo has been burned away to promote new growth for cattle grazing.

References

  1. Potential hazards in case of unrest at Mojanda - Fuya Fuya volcanic complex, Ecuador. (DOC) URL accessed on 2006-03-17.
  2. Mojanda. Global Volcanism Program. URL accessed on 2006-03-17.

  Results from FactBites:
 
Casa Mojanda, Andean Inn & Farm in Otavalo, Ecuador, Ecolodge Member of ECOCLUB.com (1376 words)
Built in the early 1990’s and opened in 1995, Casa Mojanda operates on the basis of a firm and ongoing commitment to the principles and practices of ecological and community-based tourism.
Casa Mojanda is deeply committed to principles of ecological and community-based tourism.
The Mojanda Foundation has been instrumental in developing a plan to secure protected status for the lakes and grasslands, which was very recently passed by the two local county governments with jurisdiction over the Mojanda Lakes.
  More results at FactBites »

 
 

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