Archivo:The Mountainous Spine of Corsica.jpeg
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Resumen
| Descripción |
“A Mountain in the Sea” is the widely used slogan for Corsica, the large Mediterranean Island off of France and Italy. A more geologically accurate version might read: “Two Mountain Ranges in the Sea.” A line that runs roughly from L‘Île Rousse on the north coast, through Corte in the interior, to Favone on the southeast coast, divides Corsica into two distinct geologic terranes. Most of the rock to the west of the line is granite, a type of igneous rock. The mountains and hills on the west side of the line are roots of an ancient range that rose between 345 and 225 million years ago during the Hercynian orogeny (mountain-building period). Everything to the east of the line is “Alpine Corsica.” The rocks on this part of the island were crumpled into mountains hundreds of millions of years later, when the African and Eurasian plates collided to form the Alps. The layered rocks on this side of the island are mainly schist, limestone, and other sedimentary rocks that formed on the seafloor. These two periods of mountain-building, plus millions of years of rainfall and erosion carving the highlands, sculpted the rugged terrain that defines Corsica today. The tallest peak, Monte Cinto, rises 2,706 meters (8,878 feet) above sea level. Corsica is home to 19 other mountains higher than 2,000 meters, mainly on the western side of the island. On May 17, 2017, the Operational Land Imager (OLI) on Landsat 8 captured this image of Corsica. In addition to all of the mountains, a few plains, lagoons, estuaries, and deltas ring the coast, particularly the eastern coast. Some historians cite the island’s rugged terrain as a reason that Corsica has retained such a distinct and fiercely independent identity, despite being occupied and controlled by several foreign powers. The Greeks, Carthaginians, Romans, Moors, and Genoese have controlled the island at times, but Corsica has retained its own language and traditions nonetheless. Occupying powers generally concentrated most of their energy on the coastal plains and struggled to exert much influence in the towns in the island’s interior because of how difficult these places are to reach. In the modern era, Corsica is a territory of France. |
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| Fuente | https://earthobservatory.nasa.gov/images/91172/the-mountainous-spine-of-corsica |
| Autor | NASA Earth Observatory image by Jesse Allen, using Landsat data from the U.S. Geological Survey and ASTER GDEM data from NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. Story by Adam Voiland. |
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Este archivo es de dominio público porque fue creado por la NASA. Las políticas sobre copyright de la NASA estipulan que «el material de la NASA no está protegido con copyright a menos que se indique lo contrario». (Políticas sobre copyright de la NASA o Políticas sobre la utilización de imágenes del Jet Propulsion Laboratory). |  |
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| actual | 03:52 12 mar 2021 | | 3000 × 5000 (11,04 MB) | StellarHalo | {{Information |Description=“A Mountain in the Sea” is the widely used slogan for Corsica, the large Mediterranean Island off of France and Italy. A more geologically accurate version might read: “Two Mountain Ranges in the Sea.” A line that runs roughly from L‘Île Rousse on the north coast, through Corte in the interior, to Favone on the southeast coast, divides Corsica into two distinct geologic terranes. Most of the rock to the west of the line is granite, a type of igneous rock. The mount... |
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