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Southern Andean Volcano Observatory
The Southern Andean Volcano Observatory (Spanish: ''Observatorio Volcanológico de los Andes del Sur''), also known by its acronyms as OVDAS, is part of ''Red Nacional de Vigilancia Volcánica'', a program of the Chilean National Geology and Mining Service to watch the 43 most dangerous volcanoes of Chile. 2012 there were 30 volcanos under observation. This is a list of the volcanoes with activity reports made by the OVDAS.Temuco.html" ;"title="Llaima's 2008 eruption as viewed from Temuco">Llaima's 2008 eruption as viewed from Temuco The headquarters are at Cerro Ñielol at Temuco from where there is good sight to Llaima and Villarrica (volcano), Villarrica, two of Chile's most active volcanoes. Much of the OVDAS work is made in collaboration with CONAF that administers the national Parks of Chile, national parks and reserves where many volcanoes are located. The regional government of Araucanía Region also contributed to the project. See also *List of volcanoes in Chile The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spanish Language
Spanish ( or , Castilian) is a Romance languages, Romance language of the Indo-European language family that evolved from colloquial Latin spoken on the Iberian peninsula. Today, it is a world language, global language with more than 500 million native speakers, mainly in the Americas and Spain. Spanish is the official language of List of countries where Spanish is an official language, 20 countries. It is the world's list of languages by number of native speakers, second-most spoken native language after Mandarin Chinese; the world's list of languages by total number of speakers, fourth-most spoken language overall after English language, English, Mandarin Chinese, and Hindustani language, Hindustani (Hindi-Urdu); and the world's most widely spoken Romance languages, Romance language. The largest population of native speakers is in Mexico. Spanish is part of the Iberian Romance languages, Ibero-Romance group of languages, which evolved from several dialects of Vulgar Latin in I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maule Region
The Maule Region ( es, Región del Maule, ) is one of Chile's 16 first order administrative divisions. Its capital is Talca. The region derives its name from the Maule River which, running westward from the Andes, bisects the region and spans a basin of about 20,600 km2. The Maule river is of considerable historic interest because, among other reasons, it marked the southern limits of the Inca Empire. Geography and ecology The region covers an area of and is bordered on the west by the Pacific Ocean; on the east by the Argentina; on the north by the O'Higgins Region, and on the south by the Ñuble Region. There are a number of flora and fauna species present in Maule. For example, the endangered Chilean Wine Palm (''Jubaea chilensis'') is found in a very limited distribution that includes the Maule Region. The limited distribution ''Nothofagus alessandri'' is also found in the region. Demography According to the 2017 census, the population of the region was 1,033,197. Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araucanía Region
The Araucanía ( ), La Araucanía Region ( es, Región de La Araucanía ) is one of Chile's 16 first-order administrative divisions, and comprises two provinces: Malleco in the north and Cautín in the south. Its capital and largest city is Temuco; other important cities include Angol and Villarrica. Chile did not incorporate the lands of the Araucanía Region until the 1880s, when it occupied the area to end resistance by the indigenous Mapuche by both military and political means. This opened up the area for Chilean and European immigration and settlement. In the 1900–1930 period, the population of Araucanía grew considerably, as did the economy despite recessions striking the rest of Chile. Araucanía became one of the principal agricultural districts of Chile, gaining the nickname of "granary of Chile". The administrative Araucanía Region was established in 1974, in what was the core of the larger historic region of Araucanía. In the 21st century, Araucanía is Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tolhuaca (volcano)
Tolhuaca Volcano is a stratovolcano straddling the border between the regions of Bío Bío Region, Bío Bío and Araucanía Region, Araucanía in southern Chile. The volcano has been shaped by glacial erosion, which contrasts with the relatively smooth slopes of its neighbor Lonquimay (volcano), Lonquimay, due to the younger age of this latter volcano. The volcano dominates the landscape vistas of Tolhuaca National Park, but is not actually located within its borders. The volcano's slopes are covered in forests. These forests are predominantly Araucaria araucana, araucaria trees among others. There are also numerous small lakes known as ''lagunas'' among the scenery. See also * List of volcanoes in Chile * Malalcahuello-Nalcas * Callaqui * Sierra Nevada (stratovolcano), Sierra Nevada * Llaima References * Volcanoes of Araucanía Region Volcanoes of Biobío Region Mountains of Chile Stratovolcanoes of Chile Pleistocene stratovolcanoes Holocene stratovolcanoes {{Bio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonquimay (volcano)
Lonquimay Volcano is a stratovolcano of late-Pleistocene to dominantly Holocene age, with the shape of a truncated cone. The cone is largely andesitic, though basaltic and dacitic rocks are present. It is located in the La Araucanía Region of Chile, immediately SE of Tolhuaca volcano. Sierra Nevada and Llaima are their neighbors to the south. The snow-capped volcano lies within the protected area Malalcahuello-Nalcas. The volcano's last eruption began on December 25, 1988, earning it the nickname "Navidad". The eruption lasted for 13 months before ending in 1990. The Volcanic Explositivy Index was 3, indicating tropospheric injections and catastrophic damage. The eruption was from a flank vent and involved mostly andesite lava, and had been preceded by increased seismicity for three weeks. The volume of the lava flow decreased as time went on and the vent dimensions decreased, though by the end of the eruption the andesite had still built up to a length of 10.2 km. Ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callaqui
Callaqui is a stratovolcano located in the Bío Bío Region of Chile. It is a large ice-capped, basaltic andesite volcano which is elongated in the northeast-southwest direction, due to its construction along an long fissure. Numerous cinder cones and lava flows have erupted from vents along this linear fissure. Most of the activity at Callaqui has been fumarolic. Minor eruptions were reported 1751, 1864, and 1937, and the latest eruption was a small phreatic eruption in 1980. Together with Hekla in Iceland, Callaqui is one of the few volcanoes with have a morphology between a crater row and stratovolcano (built from mixed lava and tephra eruptions). The volcano is the centerpiece of Ralco National Reserve. See also * List of volcanoes in Chile The Smithsonian Institution's Global Volcanism Program lists 105 volcanoes in Chile that have been active during the Holocene. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copahue
Copahue () is a stratovolcano in the Andes on the border of Bío Bío Region, Chile and Neuquén Province, Argentina. There are nine volcanic craters along a line, the easternmost of which is historically the most active, and contains a 300 m (1000 ft) wide crater lake with a pH ranging between 0.18 and 0.30. Eruptions from this crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments. Although the lake emptied during the 2000 eruption, it later returned to its previous levels. ''Copahue'' means "sulphur waters" in Mapuche. Copahue sits on a basement of sedimentary and volcanic rocks ranging in age from Eocene to Pliocene. The modern volcano sits in a volcanically active area, with a caldera from the Pliocene, measuring 20 km by 15 km, lying to the east of Copahue. The modern volcano became active roughly 1.2 million years ago (Ma). The modern caldera formed 0.6 to 0.4 Ma, and produced large pyroclastic flows, extending up to 37 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antuco (volcano)
Antuco Volcano is a stratovolcano located in the Bío Bío Region of Chile, near Sierra Velluda and on the shore of Laguna del Laja. Eruptions The first registered eruption occurred in 1624 but it is known that the volcano experienced some activity in the 16th century.Petit-Breuilh 2004, p. 105. The 1624 eruption was strombolian forming a lava flow and resulting in the ejection of pyroclasts. Beginning with this eruption many more were recorded as the volcano lies near an Andean mountain pass transited by the Spanish. 24–30 April 2013 In April 2013, there were reported signs of activity sighted by nearby inhabitants - a pilot even reported ash spewing from the volcano. The Volcanic Ash Advisory Center in Buenos Aires, Argentina, investigated and determined that only trace gases and steam had emerged from Antuco. In literature * ''The Voyage of the Beagle'' by Charles Darwin * ''Les Enfants du capitaine Grant'', also known as '' In Search of Castaways: A Romanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biobío Region
The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided into three provinces: Arauco Province, Arauco, Biobío Province, Biobío and Concepción Province, Chile, Concepción. The latter contains its capital and largest city, Concepción, Chile, Concepción, a major city and Greater Concepción, metro area in the country. Los Ángeles, Chile, Los Ángeles, capital of the Biobío Province, is another important city in the region. Geography The Region of the Biobío is bordered on the west by the Pacific Ocean, on the east by Argentina, on the north by the Chilean Ñuble Region, Region of Ñuble, and on the south by the Chilean La Araucanía Region, Region of Araucanía. The Region has been hit by many List of earthquakes in Chile, Chilean earthquakes, including the 1960 Valdivia earthquake, most p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevados De Chillán
Nevados de Chillán is a group of stratovolcanoes located in the Andes of Ñuble Region, Central Chile, and is one of the most active volcanoes in the region. It consists of three overlapping peaks, Cerro Blanco (Volcán Nevado) at the northwest and Volcán Viejo (Volcán Chillán) at the southeast, with Volcán Nuevo in the middle. Volcán Viejo was the main active vent during the 17th-19th centuries, and the new Volcán Nuevo lava dome complex formed between 1906 and 1945, eventually growing to exceed Viejo in height by the mid 1980s. This complex contains two subcomplexes: Cerro Blanco and Las Termas. The subcomplex Cerro Blanco includes the volcanoes Santa Gertrudis, Gato, Cerro Blanco, Colcura, Calfú Pichicalfú and Baños. The subcomplex Las Termas includes the volcanoes Shangri-La, Nuevo, Arrau, Viejo, Chillán y Pata de Perro. In addition, near of the complex there are two pyroclastic satellite cones, the volcanoes Las Lagunillas and Parador. See also * Geotherm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laguna Del Maule (volcano)
Laguna del Maule is a volcanic field in the Andes mountain range of Chile, close to, and partly overlapping, the Argentina–Chile border. The bulk of the volcanic field is in the Talca Province of Chile's Maule Region. It is a segment of the Southern Volcanic Zone, part of the Andean Volcanic Belt. The volcanic field covers an area of and features at least 130 volcanic vents. Volcanic activity has generated cones, lava domes, lava coulees and lava flows, which surround the Laguna del Maule lake. The field gets its name from the lake, which is also the source of the Maule River. The field's volcanic activity began 1.5million years ago during the Pleistocene epoch; such activity has continued into the postglacial and Holocene epoch after glaciers retreated from the area. Postglacial volcanic activity has included eruptions with simultaneous explosive and effusive components, as well as eruptions with only one component. In the postglacial era, volcanic activity has increased ... [...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] |
