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Ojos Del Salado
Nevado Ojos del Salado is a Dormant volcano, dormant complex volcano in the Andes on the Argentina–Chile border. It is the highest volcano on Earth and the highest peak in Chile. The upper reaches of Ojos del Salado consist of several overlapping lava domes, lava flows and volcanic craters, with sparse ice cover. The complex extends over an area of and its highest summit reaches an altitude of above sea level. Numerous other volcanoes rise around Ojos del Salado. Being close to the Arid Diagonal of South America, the mountain has extremely dry conditions, which prevent the formation of substantial glaciers and a permanent snow cover. Despite the arid climate, there is a permanent Volcanic crater lake, crater lake about in diameter at an elevation of - within the summit crater and east of the main summit. This is the Lake#Notable lakes on Earth, highest lake of any kind in the world. Owing to its altitude and the desiccated climate, the mountain lacks vegetation. Ojos del Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aconcagua
Aconcagua () is a mountain in the Principal Cordillera of the Andes mountain range, in Mendoza Province, Argentina. It is the highest mountain in the Americas, the highest outside Asia, and the highest in both the Western Hemisphere and the Southern Hemisphere with a summit elevation of . It lies northwest of the provincial capital, the city of Mendoza, about from San Juan Province, and from Argentina's border with Chile. Aconcagua is one of the Seven Summits, the highest peaks on each of the seven continents. Aconcagua is bounded by the ''Valle de las Vacas'' to the north and east and the ''Valle de los Horcones Inferior'' to the west and south. The mountain and its surroundings are part of Aconcagua Provincial Park. The mountain has a number of glaciers. The largest glacier is the Ventisquero Horcones Inferior at about long, which descends from the south face to about in elevation near the Confluencia camp. Two other large glacier systems are the Ventisquero de l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arid Diagonal
The Arid Diagonal () is a contiguous zone of arid and semi-arid climate that traverses South America from coastal Peru in the Northwest to Argentine Patagonia in the Southeast, including large swathes of Bolivia and Chile. The Arid Diagonal encompasses a number of deserts, including the Sechura, Atacama, Monte, and Patagonian. The Arid Diagonal acts to isolate the temperate and subtropical forests of Chile and southern Argentina from other forests of South America. Together with the Quaternary glaciations in the Southern Andes, the diagonal has controlled the distribution of vegetation throughout Chile and Argentina. The concept of a South American Arid Diagonal was first coined by French geographer Emmanuel de Martonne in his 1935 work ''Problème des régions arides Sud-Américaines''. However, few works dealing with the Arid Diagonal mention this foundational text. The original Arid Diagonal of de Martonne went from Antofagasta in northern Chile to the northern coast of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puna De Atacama
The Puna de Atacama or Atacama Plateau article at the ''Encyclopædia Britannica'' website is an arid high plateau, in the Andes of northern Chile (15%) and northwest of Argentina (85%).Historia de la relacciones exteriores de la Argentina Geomorphology, Geomorphologist Walther Penck based his ''Grossfalt'' landform association on Puna de Atacama. Geography The plateau's elevation averages above sea level, and it spans an area of . In Argentina, Puna's territory is extended in the provinces of Salta Province, Salta, Jujuy Province, Jujuy, and western Catamarca Province, Cata ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerro Solo
Cerro Solo is a large stratovolcano on the border between Argentina and Chile, west of Ojos del Salado with an elevation of metres. It consists of nine eruptive centers and is covered in light-colored rhyodacite pyroclastic flow deposits. Its territory is within the Argentinean protection area of Catamarca High Andean and Puna Lakes Ramsar Site. It is located in the territory of the Argentinean province of Catamarca (commune of Fiambalá) and the Chilean province of Copiapo (commune of Copiapó). First Ascent Solo was first climbed by Luis Alvarado, Jorge Balastino, Carlos and Oscar Alvarez (Chile) on 21 February 1950. See also *List of volcanoes in Argentina *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] |
Deutscher Alpenverein
The German Alpine Club (, DAV for short) is the world's largest climbing association and the eighth-largest sporting association in Germany. It is a member of the German Olympic Sports Confederation and the competent body for sport and competition climbing, hiking, mountaineering, hill walking, ice climbing, mountain expeditions, as well as ski mountaineering. It is an association made up of local branches known as 'sections'. History The German Alpine Club was founded as on 9 May 1869 in Munich by 36 former members of the Austrian Alpine Club around the Ötztal curate Franz Senn. It was founded in order to promote the development of tourism in the Eastern Alps through the building of mountain huts, and establishment of hiking trails, and via ferratas. The association had a large membership from the beginning, attracting 1,070 members in the first ten months. The German and the Austrian societies merged in 1873 to form the German and Austrian Alpine Club (DÖAV). By the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930s Polish Andean Expeditions
Polish Andean expeditions of the 1930s refers to the two expeditions of Polish Mountaineering, mountain climbers in the Andes carried out in the 1930s. The First Polish Andean Expedition of 1933-34 was led by Konstanty Jodko-Narkiewicz, Konstanty Narkiewicz-Jodka. Its achievements included several First ascent, first ascents of six-thousanders - first ascent of Mercedario and Cerro Ramada, ascents to La Mesa (mountain), La Mesa, Alma Negra, and the discovery of Pico Polaco (6050 m), as well as ascents to five-thousanders - including Cerro Negro (mountain), Cerro Negro (5550 m) and exploration of the Aconcagua region; the latter involved pioneering a new climbing route. The Second Polish Andean Expedition of 1936-37 was led by . Its achievements included the first ascents of Ojos del Salado and Nevado Pissis. Both expeditions have been credited with gathering scientific data and have led to a number of literary works being produced (such as autobiographical memoirs). First Polis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Era
Common Era (CE) and Before the Common Era (BCE) are year notations for the Gregorian calendar (and its predecessor, the Julian calendar), the world's most widely used calendar era. Common Era and Before the Common Era are alternatives to the original Anno Domini (AD) and Before Christ (BC) notations used for the same calendar era. The two notation systems are numerically equivalent: " CE" and "AD " each describe the current year; "400 BCE" and "400 BC" are the same year. The expression can be traced back to 1615, when it first appears in a book by Johannes Kepler as the (), and to 1635 in English as " Vulgar Era". The term "Common Era" can be found in English as early as 1708, and became more widely used in the mid-19th century by Jewish religious scholars. Since the late 20th century, BCE and CE have become popular in academic and scientific publications on the grounds that BCE and CE are religiously neutral terms. They have been promoted as more sensitive to non-Christia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevado Tres Cruces
Nevado Tres Cruces is a massif of volcanic origin in the Andes Mountains on the border of Argentina and Chile. It has two main summits, Tres Cruces Sur at and Tres Cruces Centro at and a third minor summit, Tres Cruces Norte . Tres Cruces Sur is the sixth highest mountain in the Andes. The volcano has an extended history of activity, going back at least 1.5 million years. A number of lava domes surround the complex and a number of craters lie on its summits. The main volcano is of rhyodacitic composition and has generated two major ignimbritic eruptions, one 1.5 million years ago and a second 67,000 years ago. The last eruption was 28,000 years ago, but the volcano is a candidate source for a Holocene eruption and could erupt again in the future. Geography and geomorphology Nevado Tres Cruces is located in the High Andes of Copiapo and straddles the boundary between Chile ( Atacama Region) and Argentina ( Catamarca Province). The Salar de Maricunga is located west of N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the structural integrity of such a chamber, greatly diminishing its capacity to support its own roof and any substrate or rock resting above. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur over the course of a century, the formation of a caldera is a rare event, occurring only a few times within a given window of 100 years. Only eight caldera-forming collapses are known to have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers. Lakes, as with other bodies of water, are part of the water cycle, the processes by which water moves around the Earth. Most lakes are fresh water and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume of water. Lakes are typically larger and deeper than ponds, which are also water-filled basins on land, although there are no official definitions or scientific criteria distinguishing the two. Lakes are also distinct from lagoons, which are generally shallow tidal pools dammed by sandbars or other material at coastal regions of ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
