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Southern Patagonia Ice Field
The Southern Patagonian Ice Field ( es, Hielo Continental or '), located at the Southern Patagonia, Patagonic Andes between Chile and Argentina, is the world's second largest contiguous extrapolar ice field. It is the bigger of two remnant parts of the Patagonian Ice Sheet, which covered all of southern Chile during the last glacial period, locally called the Llanquihue glaciation. Geography The Southern Patagonia Ice Field extends from parallels 48° 15′ S to 51° 30′ S for approximately , and has an approximate area of , of which 14,200 km2 belong to Chile and 2,600 km2 belong to Argentina. The ice mass feeds dozens of glaciers in the area, among which are the Upsala Glacier, Upsala (765 km2), Viedma Glacier, Viedma (978 km2) and Perito Moreno Glacier, Perito Moreno (258 km2) in the Los Glaciares National Park in Argentina, and the Bruggen Glacier, Pío XI Glacier or Bruggen Glacier (1,265 km2, the largest in area and longest in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Field
An ice field (also spelled icefield) is a mass of interconnected valley glaciers (also called mountain glaciers or alpine glaciers) on a mountain mass with protruding rock ridges or summits. They are often found in the colder climates and higher altitudes of the world where there is sufficient precipitation for them to form. The higher peaks of the underlying mountain rock that protrude through the icefields are known as nunataks. Ice fields are larger than alpine glaciers, but smaller than ice caps and ice sheets. The topography of ice fields is determined by the shape of the surrounding landforms, while ice caps have their own forms overriding underlying shapes. Formation Ice fields are formed by a large accumulation of snow which, through years of compression and freezing, turns into ice. Due to ice's susceptibility to gravity, ice fields usually form over large areas that are basins or atop plateaus, thus allowing a continuum of ice to form over the landscape uninterrupted b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viedma (volcano)
Viedma () is a subglacial volcano whose existence is questionable. It is supposedly located below the ice of the Southern Patagonian Ice Field, an area disputed between Argentina and Chile. The 1988 eruption deposited ash and pumice on the ice field and produced a mudflow that reached Viedma Lake. The exact position of the edifice is unclear, both owing to the ice cover and because the candidate position, the "Viedma Nunatak", does not clearly appear to be of volcanic nature. Geography and geomorphology Viedma is located in the southern Patagonian Andes, southwest of Mount FitzRoy. The lake of the same name lies southwest of the volcano. The area is poorly accessible and the volcanic history poorly known. Viedma is part of the Austral Volcanic Zone. This volcanic zone consists of six volcanoes, from north to south Lautaro, Aguilera, Viedma, Reclus, Monte Burney and Fueguino. These volcanoes form a long chain of volcanoes, the most southern of which is a volcanic complex o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lautaro Volcano
Lautaro Volcano is an active subglacial stratovolcano located in Chilean Patagonia, in the northern part of the Southern Patagonian Ice Field. Its summit rises roughly above the average surface of the ice cap plateau. It is the tallest mountain in Bernardo O'Higgins National Park and in its vicinity lies Pío XI Glacier. In 1952 the volcano was given its name in honor of Lautaro, who was a Mapuche military leader. The first ascent of Lautaro was made by Peter Skvarca and Luciano Pera, on January 29, 1964. They climbed the southeast ridge, encountering many crevasses, some steep ice walls, cornices, and a snow mushroom at the summit. They found an active crater and strong sulfurous emissions near the summit. The second ascent was made by Eric Jones, Mick Coffey, and Leo Dickinson on March 2, 1973, as part of a crossing of the Southern Patagonian Ice Field. See also * List of volcanoes in Chile * List of Ultras of South America References * Lautaro Volcanoes of Aysé ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torres Del Paine National Park
Torres del Paine National Park ( es, Parque Nacional Torres del Paine) is a national park encompassing mountains, glaciers, lakes, and rivers in southern Chilean Patagonia. The Cordillera del Paine is the centerpiece of the park. It lies in a transition area between the Magellanic subpolar forests and the Patagonian Steppes. The park is located north of Puerto Natales and north of Punta Arenas. The park borders Bernardo O'Higgins National Park to the west and the Los Glaciares National Park to the north in Argentine territory. ''Paine'' means "blue" in the native Tehuelche (Aonikenk) language and is pronounced ''PIE-neh'', while ''Torres'' means "towers". It was established as a National Park in 1959. Torres del Paine National Park is part of the ''Sistema Nacional de Áreas Silvestres Protegidas del Estado de Chile'' (National System of Protected Forested Areas of Chile). In 2013, it measured approximately . It is one of the largest and most visited parks in Chile. The park ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernardo O'Higgins National Park
Bernardo O'Higgins National Park () is the largest of the protected areas in Chile, covering an area of in both the Aysén and Magallanes and Antártica Chilena regions. Management of this and other national parks in Chile is entrusted to the ''Corporación Nacional Forestal'' (CONAF). The park is named after General Bernardo O'Higgins, the first head of state of the Republic of Chile. Los Glaciares National Park (Argentina) and Torres del Paine National Park are its neighbours to the east, Laguna San Rafael National Park is located to the north, the Alacalufes National Reserve to the southwest and the Katalalixar National Reserve to the northwest. History The earliest occupants of the area were the Alacaluf people. In 1830, the then-Captain Phillip Parker King on board HMS ''Beagle'' visited the Eyre Fjord. In June 2007, it was announced that between March and May 2007 all the water within a glacial lake located within the park had disappeared, leaving behind a 100-foot- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Cruz River (Argentina)
Santa Cruz River ( es, Río Santa Cruz) is a river in the Argentine province of Santa Cruz. The Santa Cruz begins at the shore of the Viedma and Argentino Lakes, of glacial origin and located in the Los Glaciares National Park, and runs eastwards before reaching the Atlantic Coast, north of the southern tip of South America, creating a delta. It is one of the last large free-flowing rivers in Patagonia. Dams The river has an important flow of on average, and is used for irrigation. Two dams are planned for the river, the Jorge Cepernic and Nestor Kirchner Dams. They will have a combined installed capacity of 1,740 MW. Contracts to construct the dams were awarded to a consortium of Chinese and domestic companies in August 2013. It is estimated that the dams will destroy over half of the Santa Cruz River ecosystem. History Santa Cruz River was discovered by Europeans during Magellan's circumnavigation of the Earth, by Juan Serrano, captain of the ''Santiago'', one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Argentino
Lago Argentino is a lake in the Patagonian province of Santa Cruz, Argentina, at . It is the biggest freshwater lake in Argentina, with a surface area of (maximum width: ). It has an average depth of , and a maximum depth of . The lake lies within the Los Glaciares National Park in a landscape with numerous glaciers and is fed by the glacial meltwater of several rivers, the water from Lake Viedma brought by the La Leona River, and many mountain streams. Its drainage basin amounts to more than . Waters from Lake Argentino flow into the Atlantic Ocean through the Santa Cruz River. The glaciers, the nearby town of El Calafate and the lake itself are important tourist destinations. The lake in particular is appreciated for fishing. Perch, common galaxias ("puyen grande"), lake trout and rainbow trout — in both anadromous and Potamodromous forms — are all found. ''Lago Argentino'' was also the name of the airport that served the area until 2000. This airport is currently closed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Viedma
Viedma Lake ( es, Lago Viedma, ) is a Patagonian lake in the province of Santa Cruz, Argentina, situated near its border with Chile. Measuring approximately 50 miles (80 kilometers) in length, it is a major elongated trough lake formed from melting glacial ice. Viedma Lake is the second largest perennial lake located entirely within Argentina."Principal Lagos de la Republica Argentina", http://www.ign.gob.ar/NuestrasActividades/Geografia/DatosArgentina/Lagos, accessed 20 Jul 2018. Note that this list does not include an area figure for the large but seasonal Mar Chiquita. The name of the lake comes from the Spanish explorer Antonio de Viedma, who in 1783 reached its shores, being the first European to do so. The town of El Chaltén and the Andes peaks Cerro Torre and Fitz-Roy lie in the proximity of Lake Viedma. Lake Viedma is fed primarily by the Viedma Glacier at its western end. The Viedma Glacier measures 3 miles (5 kilometers) wide at its terminus at Lake Viedma. The bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Fjords
In physical geography, a fjord or fiord () is a long, narrow inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Alaska, Antarctica, British Columbia, Chile, Denmark, Germany, Greenland, the Faroe Islands, Iceland, Ireland, Kamchatka, the Kerguelen Islands, Labrador, Newfoundland, New Zealand, Norway, Novaya Zemlya, Nunavut, Quebec, the Patagonia region of Argentina and Chile, Russia, South Georgia Island, Tasmania, United Kingdom, and Washington state. Norway's coastline is estimated to be long with its nearly 1,200 fjords, but only long excluding the fjords. Formation A true fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock. According to the standard model, glaciers formed in pre-glacial valleys with a gently sloping valley floor. The work of the glacier then left an overdeepened U-shaped valley that ends abruptly at a valley or trough end. Such valleys are fjords when fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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