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Cerro Volcánico
Cerro Volcánico (also known as Fonck) is a cinder cone in Argentina, located southeast of the massive stratovolcano of Tronador. The cone produced a single andesite lava flow, which has been bracketed in age between 70,000 and 14,000 years ago. Sources * See also *List of volcanoes in Argentina *El Bolsón, Río Negro *El Bolsón Airport El Bolsón Airport is an airport serving El Bolsón, Río Negro, Argentina. Airlines and destinations Accidents and incidents *7 August 1977: A LADE Twin Otter 300, tail number T-87, crashed into Cerro Bayo shortly after takeoff from the ... Cinder cones Volcanoes of Río Negro Province Subduction volcanoes Mountains of Argentina {{RíoNegroAR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andes
The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S latitude), and has an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano plateau is the world's second-highest after the Tibetan plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. The Andes Mountains are the highest m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinder Cone
A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30 and 40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit. Mechanics of eruption Cinder cones range in size from tens to hundreds of meters tall and often have a bowl-shaped crater at the summit. They are composed of loose pyroclastic material (cinder or scoria), which distinguishes them from ''spatter cones'', which are composed of agglomerated volcanic bombs. The pyroclastic material making up a cinder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.Oxford University Press – Why Geography Matters: More Than Ever (book) – "Holocene Humanity" section https://books.google.com/books?id=7P0_sWIcBNsC The Holocene corresponds with the rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinder Cone
A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30 and 40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit. Mechanics of eruption Cinder cones range in size from tens to hundreds of meters tall and often have a bowl-shaped crater at the summit. They are composed of loose pyroclastic material (cinder or scoria), which distinguishes them from ''spatter cones'', which are composed of agglomerated volcanic bombs. The pyroclastic material making up a cinder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tronador
Tronador ( es, Cerro Tronador) is an extinct stratovolcano in the southern Andes, located along the border between Argentina and Chile, near the Argentine city of Bariloche. The mountain was named ''Tronador'' (Spanish for "Thunderer") by locals in reference to the sound of falling seracs. With an altitude of , Tronador stands more than 1,000 m above nearby mountains in the Andean massif, making it a popular mountaineering destination. Located inside two national parks, Nahuel Huapi in Argentina and Vicente Pérez Rosales in Chile, Tronador hosts a total of eight glaciers, which are currently retreating due to warming of the upper troposphere.Bown, Francisca. 2004. Cambios climáticos en la Región de Los Lagos y respuestas recientes del Glaciar Casa Pangue (41º08’S). Tesis para optar al grado de Magíster en Geografía. Universidad de Chile. Geography and geology Cerro Tronador is in the Wet Andes, a zone of high precipitation of both snow and rain. The humid temperate climat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende. Andesite is the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts, andesites are a component of the Martian crust. The name ''andesite'' is derived from the Andes mountain range, where this rock type is found in abundance. It was first applied by Christian Leopold von Buch in 1826. Description Andesite is an aphanitic (fine-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 65% of the fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Flow
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is also often called ''lava''. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times that of water. Even so, lava can flow great distances before cooling causes it to solidify, because lava exposed to air quickly develops a solid crust that insulates the remaining liquid lava, helping to keep it hot and inviscid enough to continue flowing. The word ''lava'' comes from Italian and is probably derived from the Latin word ''labes'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Argentina
This is a list of active and extinct volcanoes in Argentina. Volcanoes {, class="wikitable sortable" style="text-align:right;" , - style="text-align:center;" ! rowspan="2" , Name ! rowspan="2" , Type ! colspan="2" , Elevation ! Location ! rowspan="2" , Last eruption , - style="text-align:center;" ! meters ! feet ! Coordinates , - , align="left" , Agua Poca , , Cinder Cone , , 657 , , 2,156 , , , , 600,000 years ago , - , align="left" , Aguas Calientes , , Caldera , , 4,473 , , 14,675 , , , , 200,000 years ago , - , align="left" , Aguiliri , , Lava Dome Complex , , , , , , , , 12.7 mya , - , align="left" , Antilla , , Complex volcano , , , , , , , , 4.67 mya , - , align="left" , Antofagasta de la Sierra , , Volcanic field , , 4,000 , , 13,123 , , , , Unknown , - , align="left" , Antofalla , , Stratovolcano , , 6,440 , , 20,013 , , , , Unknown , - , align="left" , Aracar , , Stratovolcano , , 6,082 , , 19,954 , , , , 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Bolsón, Río Negro
El Bolsón is a town in the southwest of Río Negro Province, Argentina, at the foot of the Piltriquitron Mountain. Due to a series of valleys through the mountains of Chile to the Pacific Ocean, El Bolsón has an unusually mild climate for its southern location. El Bolsón area's first non-indigenous inhabitants were Chilean farmers Lucas Cárdenas and Elcira Estrada, a couple who came in 1885 from San Pablo, near Osorno, and established themselves in the then known as "Valle Nuevo" (New Valley); in 2018 El Bolsón inaugurated the new Public Clock Square after the couple's names. In the 1970s hippies from Buenos Aires migrated to El Bolsón; some of them practised horticulture and made handcrafts. El Bolsón has a tourism economy based on an outdoor artisan market, fly fishing, trekking, rafting, climbing, and other outdoor activities in the surrounding lakes and mountains. The nature tourism offers are complemented with the production of cheeses, smoked trout, special brew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Bolsón Airport
El Bolsón Airport is an airport serving El Bolsón, Río Negro, Argentina. Airlines and destinations Accidents and incidents *7 August 1977: A LADE Twin Otter 300, tail number T-87, crashed into Cerro Bayo shortly after takeoff from the airport, bound for Comodoro Rivadavia, killing all six aboard. See also * * *List of airports in Argentina This is a list of airports in Argentina, sorted by location. __TOC__ Airports ICAO location identifiers link to airport page at Organismo Regulador del Sistema Nacional de Aeropuertos' (ORSNA), where availableMap of airports. Airport names sho ... References External links * Airports in Argentina {{Argentina-airport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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