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Llullaillaco Volcano
Llullaillaco () is a Volcano#Dormant, dormant stratovolcano on the border between Argentina (Salta Province) and Chile (Antofagasta Region). It lies in the Puna de Atacama, a region of tall volcanic peaks on a high plateau close to the Atacama Desert, one of the driest places in the world. Its maximum elevation is most commonly given as , making it the List of volcanoes by elevation, second- or third-highest volcano in the world. Despite its height, it is not clear whether the volcano has any glaciers or merely patches of perennial snow and ice. Between and elevation there is a sparse plant cover, while at lower altitudes the climate is too dry for plants to grow. A Yellow-rumped leaf-eared mouse, species of mouse on Llullaillaco is the highest-living known vertebrate species. The volcano formed during the Pleistocene in two stages, named Llullaillaco I and Llullaillaco II. The oldest rocks are about 1.5 million years old. About 150,000 years ago, the volcano's southeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra Prominent Peak
An ultra-prominent peak, or ultra for short, is a mountain summit with a topographic prominence of or more; it is also called a P1500. The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or from sea level if there is no higher peak. There are approximately 1,500 such peaks on Earth. Some well-known peaks, such as the Matterhorn and Eiger, are not ultras because they are connected to higher mountains by high cols and thus do not achieve enough topographic prominence. The term "ultra" originated with earth scientist Steve Fry, from his studies of the prominence of peaks in Washington (state), Washington in the 1980s. His original term was "ultra major mountain", referring to peaks with at least of prominence. Distribution Currently, over 1,500 ultras have been identified above sea level: 654 in Asia, 357 in North America, 209 in South America, 119 in Europe (including 12 in the Caucasus), 84 in Africa, 54 in Oceania, and 39 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Debris Avalanche
Debris flows are geological phenomena in which water-laden masses of soil and fragmented rock flow down mountainsides, funnel into stream channels, entrain objects in their paths, and form thick, muddy deposits on valley floors. They generally have bulk densities comparable to those of rockslides and other types of landslides (roughly 2000 kilograms per cubic meter), but owing to widespread sediment liquefaction caused by high pore-fluid pressures, they can flow almost as fluidly as water. Debris flows descending steep channels commonly attain speeds that surpass 10 m/s (36 km/h), although some large flows can reach speeds that are much greater. Debris flows with volumes ranging up to about 100,000 cubic meters occur frequently in mountainous regions worldwide. The largest prehistoric flows have had volumes exceeding 1 billion cubic meters (i.e., 1 cubic kilometer). As a result of their high sediment concentrations and mobility, debris flows can be very destr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Hispanic
In the history of the Americas, the pre-Columbian era, also known as the pre-contact era, or as the pre-Cabraline era specifically in Brazil, spans from the initial peopling of the Americas in the Upper Paleolithic to the onset of European colonization, which began with Christopher Columbus's voyage in 1492. This era encompasses the history of Indigenous cultures prior to significant European influence, which in some cases did not occur until decades or even centuries after Columbus's arrival. During the pre-Columbian era, many civilizations developed permanent settlements, cities, agricultural practices, civic and monumental architecture, major earthworks, and complex societal hierarchies. Some of these civilizations had declined by the time of the establishment of the first permanent European colonies, around the late 16th to early 17th centuries, and are known primarily through archaeological research of the Americas and oral histories. Other civilizations, contemporan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Socompa
Socompa is a large stratovolcano (composite volcano) on the border of Argentina and Chile. It has an elevation of and is part of the Chilean and Argentine Andean Volcanic Belt (AVB). Socompa is within the Central Volcanic Zone, one of the segments of the AVB, which contains about 44 active volcanoes. It begins in Peru and runs first through Bolivia and Chile, and then Argentina and Chile. Socompa lies close to the pass of the same name where the Salta-Antofagasta railway crosses the Chilian border. Most of the northwestern slope of Socompa collapsed catastrophically 7,200 years ago to form an extensive debris avalanche deposit. The Socompa collapse is among the largest known on land with a volume of and a surface area of ; its features are well-preserved by the arid climate. The deposit was at first considered to be either a moraine or a pyroclastic flow deposit, until the 1980 eruption of Mount St. Helens prompted awareness of the instability of volcanic edifices and the ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and rail freight transport, freight transport globally, thanks to its Energy efficiency in transport, energy efficiency and potentially high-speed rail, high speed.Rolling stock on rails generally encounters lower friction, frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by Diesel locomotive, diesel or Electric locomotive, electric locomotives. While railway transport is capital intensity, capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Andes Department
Los Andes (i.e.: ''The Andes'') is a department located in Salta Province, Argentina. It is the second largest by area in the province, after Rivadavia Department, and its capital is the town of San Antonio de los Cobres. Geography Overview The department is located in the western area of the province, on the eastern side of the Andes, and includes the Puna de Atacama. It borders with Antofagasta Region (Chile), the provinces of Jujuy and Catamarca, and the departments of La Poma, Cachi and Chicoana. The territorial strip linking the northern and southern side of La Poma Department separates Los Andes from Rosario de Lerma Department. Places Towns and municipalities: * San Antonio de los Cobres (5,482 inh.) * Mina La Casualidad (''abandoned'') * Olacapato (186 inh.) * Santa Rosa de los Pastos Grandes (136 inh.) * Tolar Grande (119 inh.) Other localities and places: * Caipe * Chuculaqui * Laguna Seca * Los Patos * Mina Concordia * Mina Tincalado * Quebrada del ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aymara Language
Aymara (; also ) is an Aymaran languages, Aymaran language spoken by the Aymara people of the Bolivian Andes. It is one of only a handful of Indigenous languages of the Americas, Native American languages with over one million speakers.The other native American languages with more than one million speakers are Nahuatl, Quechua languages, and Guarani language, Guaraní. Aymara, along with Spanish language, Spanish and Quechua language, Quechua, is an official language in Bolivia and Peru. It is also spoken, to a much lesser extent, by some communities in northern Chile, where it is a Minority language, recognized minority language. Some linguists have claimed that Aymara is related to its more widely spoken neighbor, Quechua languages, Quechua. That claim, however, is disputed. Although there are indeed similarities, like the nearly identical phonologies, the majority position among linguists today is that the similarities are better explained as areal feature (linguistics), areal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood
A flood is an overflow of water (list of non-water floods, or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are of significant concern in agriculture, civil engineering and public health. Environmental issues, Human changes to the environment often increase the intensity and frequency of flooding. Examples for human changes are land use changes such as deforestation and Wetland conservation, removal of wetlands, changes in waterway course or flood controls such as with levees. Global environmental issues also influence causes of floods, namely climate change which causes an Effects of climate change on the water cycle, intensification of the water cycle and sea level rise. For example, climate change makes Extreme weather, extreme weather events more frequent and stronger. This leads to more intense floods and increased flood risk. Natural types of floods include riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meltwater
Meltwater (or melt water) is water released by the melting of snow or ice, including glaciers, glacial ice, tabular icebergs and ice shelf, ice shelves over oceans. Meltwater is often found during early spring (season), spring when snow packs and cryosphere#Lake ice and river ice, frozen rivers melt with rising temperatures, and in the ablation zone of glaciers where the rate of snow cover is reducing. Meltwater can be produced during volcanic eruptions, in a similar way in which the more dangerous lahars form. It can also be produced by the heat generated by the flow itself. When meltwater pools on the surface rather than flowing, it forms melt ponds. As the weather gets colder meltwater will often re-freeze. Meltwater can also collect or melt under the ice's surface. These pools of water, known as subglacial lakes can form due to geothermal heat and friction. Melt ponds may also form above and below Arctic sea ice, decreasing its albedo and causing the formation of thin underw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quechuan Languages
Quechua (, ), also called (, 'people's language') in Southern Quechua, is an indigenous language family that originated in central Peru and thereafter spread to other countries of the Andes. Derived from a common ancestral " Proto-Quechua" language, it is today the most widely spoken pre-Columbian language family of the Americas, with the number of speakers estimated at 8–10 million speakers in 2004,Adelaar 2004, pp. 167–168, 255. and just under 7 million from the most recent census data available up to 2011. Approximately 13.9% (3.7 million) of Peruvians speak a Quechua language. Although Quechua began expanding many centuries before the Incas, that previous expansion also meant that it was the primary language family within the Inca Empire. The Spanish also tolerated its use until the Peruvian struggle for independence in the 1780s. As a result, various Quechua languages are still widely spoken today, being co-official in many regions and the most spoken language in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Sacrifice
Human sacrifice is the act of killing one or more humans as part of a ritual, which is usually intended to please or appease deity, gods, a human ruler, public or jurisdictional demands for justice by capital punishment, an authoritative/priestly figure, spirits of veneration of the dead, dead ancestors or as a retainer sacrifice, wherein a monarch's servants are killed in order for them to continue to serve their master in the next life. Closely related practices found in some tribe, tribal societies are human cannibalism, cannibalism and headhunting. Human sacrifice is also known as ritual murder. Human sacrifice was practiced in many human societies beginning in prehistoric times. By the Iron Age with the associated developments in religion (the Axial Age), human sacrifice was becoming less common throughout Africa, Europe, and Asia, and came to be looked down upon as barbarian, barbaric during classical antiquity. In the New World, Americas, however, human sacrifice cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
