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Domuyo
The Domuyo Volcano is a stratovolcano located in the Argentine province of Neuquén. With a height of , it is the highest mountain in Patagonia and is sometimes called the "Roof of Patagonia" (''"El Techo de la Patagonia"'' in Spanish). The volcano has a large wide caldera. At least 14 dacite lava domes are found within the caldera, with another five outside. Its slopes western contain many fumaroles, hot springs and geysers. It names derives from the Mapuche meaning "To tremble and grumble", probably due to the geothermal activity of the volcano. The volcano is accessible by the National Route 40 from Chos Malal, connecting with provincial route 43, passing by Andacollo. See also *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 ... References ... [...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 , , , , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patagonia
Patagonia () refers to a geographical region that encompasses the southern end of South America, governed by Argentina and Chile. The region comprises the southern section of the Andes Mountains with lakes, fjords, temperate rainforests, and glaciers in the west and deserts, tablelands and steppes to the east. Patagonia is bounded by the Pacific Ocean on the west, the Atlantic Ocean to the east, and many bodies of water that connect them, such as the Strait of Magellan, the Beagle Channel, and the Drake Passage to the south. The Colorado and Barrancas rivers, which run from the Andes to the Atlantic, are commonly considered the northern limit of Argentine Patagonia. The archipelago of Tierra del Fuego is sometimes included as part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in Araucanía Region.Manuel Enrique Schilling; Richard WalterCarlson; AndrésTassara; Rommulo Vieira Conceição; Gustavo Walter Berto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mapudungun
Mapuche (, Mapuche & Spanish: , or Mapudungun; from ' 'land' and ' 'speak, speech') is an Araucanian language related to Huilliche spoken in south-central Chile and west-central Argentina by the Mapuche people (from ''mapu'' 'land' and ''che'' 'people'). It is also spelled Mapuzugun and Mapudungu. It was formerly known as Araucanian, the name given to the Mapuche by the Spaniards; the Mapuche avoid it as a remnant of Spanish colonialism. Mapudungun is not an official language of the countries Chile and Argentina, receiving virtually no government support throughout its history. However, since 2013, Mapuche, along with Spanish, has been granted the status of an official language by the local government of Galvarino, one of the many Communes of Chile. It is not used as a language of instruction in either country's educational system despite the Chilean government's commitment to provide full access to education in Mapuche areas in southern Chile. There is an ongoing political ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumarole
A fumarole (or fumerole) is a vent in the surface of the Earth or other rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity, but fumarole activity can also precede a volcanic eruption and has been used for eruption prediction. Most fumaroles die down within a few days or weeks of the end of an eruption, but a few are persistent, lasting for decades or longer. An area containing fumaroles is known as a fumarole field. The predominant vapor emitted by fumaroles is steam, formed by the circulation of groundwater through heated rock. This is typically accompanied by volcanic gases given off by magma cooling deep below the surface. These volcanic gases include sulfur compounds, such as various sulfur oxides and hydrogen sulfide, and sometimes hydrogen chloride, hydrogen fluoride, and other gases. A fumarole that emits significant sulfur compounds is som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcanoes Of Argentina
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 volcanoes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Neuquén Province
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subduction Volcanoes
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andacollo
Andacollo () is a city and commune in the Elqui Province, Coquimbo Region, Chile. History Andacollo is a copper and gold mining city located in the mountains of the Small North (El Norte Chico) in Chile. It was founded in 1891. Several legends are told about the name of the city. Some say that it comes from the Quechua ''Anta-Goya'' which means cobre-reina (copper queen). Others say that the name means "Hurry up, Collo" (''Anda, Co''llo). According to these legends, ''La Virgen del Rosario'', also known as ''la Virgen Morena'', or Black Madonna, appeared to an indigenous miner called "Collo" in the form of a small wooden statuette hidden in rocks. The statue told the newly converted Collo to build up a church at the place where Andacollo is located today. As many miracles are attributed to the Dark Lady (like stopping the smallpox epidemic of 1871) the city celebrates the Virgin every year on December 24 to 26. Demographics According to the 2002 census of the National St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chos Malal
Chos Malal is the capital city of the Chos Malal Department in Neuquén Province, Argentina. History Chos Malal was founded on 4 August 1887 by Colonel José Olascoaga. It developed as a control point for policing the movement of cattle with a view to the suppression of cattle raiding. The city was the capital of the Territorio del Neuquén until 1904 when the capital and administrative buildings were moved to Neuquén, capital city of the Confluencia Department, the arrival there of the railway having provided an economic boost which helped the city of Neuquén to grow very rapidly. Toponymy The name Chos Malal derives from Mapuche words meaning "yellow corral" – from the distinctively yellow colour of the sedimentary flagstone rock that predominates in the hills surrounding the city. Geography Chos Malal is located between the Neuquén River and Curi Leuvú river in the Cordillera del Viento. It is surrounded by conifer forests, mostly of Araucaria trees. Climate Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Route 40 (Argentina)
National Route 40, also known as RN40 or "Ruta 40", is a route in western Argentina, stretching from Punta Loyola near Rio Gallegos in Santa Cruz Province in the south to La Quiaca in Jujuy Province in the north. The route parallels the Andes mountains. The southern part of the route, by now largely paved, has become a well-known adventure tourism journey, and there are plans to pave the whole road. RN40 is the longest route in Argentina and one of the longest in the world alongside such routes as U.S. Route 66, Canada's Trans-Canada Highway, and Australia's Stuart Highway, more than long. At its traditional southern end near the city of Río Gallegos, it starts at sea level. It then crosses 20 national parks, 18 major rivers, and 27 passes in the Andes. Route 40's highest point is in Abra del Acay in Salta Province. The road crosses the provinces of Santa Cruz, Chubut, Río Negro, Neuquen, Mendoza, San Juan, La Rioja, Catamarca, Tucumán, Salta, and Jujuy. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Volcanology And Geothermal Research
''Journal of Volcanology and Geothermal Research'' is a scientific journal that publishes recent research on the fields of volcanology and geothermal activity, as well as the societal and environmental impact of these phenomenon. Abstracting and indexing This journal is abstracted and indexed by the following services: * Chemical Abstracts * Current Contents * Engineering Index * GEOBASE * Mineralogical Abstracts * Scopus * GeoRef * Science Citation Index * Referativnyi Zhurnal See also * List of scientific journals * List of scientific journals in earth and atmospheric sciences A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby union ... References Volcanology Geophysics journals Elsevier academic journals Geology journals {{geology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geyser
A geyser (, ) is a spring characterized by an intermittent discharge of water ejected turbulently and accompanied by steam. As a fairly rare phenomenon, the formation of geysers is due to particular hydrogeological conditions that exist only in a few places on Earth. Generally all geyser field sites are located near active volcanic areas, and the geyser effect is due to the proximity of magma. Generally, surface water works its way down to an average depth of around where it contacts hot rocks. The resultant boiling of the pressurized water results in the geyser effect of hot water and steam spraying out of the geyser's surface vent (a hydrothermal explosion). A geyser's eruptive activity may change or cease due to ongoing mineral deposition within the geyser plumbing, exchange of functions with nearby hot springs, earthquake influences, and human intervention. Like many other natural phenomena, geysers are not unique to Earth. Jet-like eruptions, often referred to as cryog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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