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Xinantécatl
Nevado de Toluca () is a stratovolcano in central Mexico, located about west of Mexico City near the city of Toluca. It is the fourth highest of Mexico's peaks, after Pico de Orizaba, Popocatépetl and Iztaccíhuatl. The volcano and the area around it is now a national park. Etymology It is often called by the Nahuatl name Xinantecatl which is usually translated as The Naked Lord, ''Señor Desnudo'' in Spanish, although other etymologies have been suggested such as "Lord of the Corn Stalks", Tzinacantecatl or Zinacantepetl (Mountain of the Bats). Further evidence regarding the etymologies of this mountain has surfaced after many archeology discoveries in and around the area. It has been concluded that its correct etymology is Chicnauhtecatl meaning "Lord of Nine", probably referring to the various deep lakes at the top of the cone. Description The volcano has a wide summit caldera which is open to the east. The highest summit, the Pico del Fraile (Friar's Peak), is on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountain Peaks Of Mexico
This article comprises three sortable tables of major mountain peaksThis article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a summit with at least on topographic prominence. All summits in this article have at least 500 meters of topographic prominence. An ultra-prominent summit is a summit with at least of topographic prominence. of Mexico. The summit of a mountain or hill may be measured in three principal ways: #The topographic elevation of a summit measures the height on the summit above a geodetic sea level.If the elevation or prominence of a summit is calculated as a range of values, the arithmetic mean is shown. The first table below ranks the 40 highest major summits of México by elevation. #The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.The topographic prominence of a summit is the topographic elevation difference between the summit and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of The Most Prominent Summits Of North America
The following sortable tables comprise the most topographically prominent mountain peaks of greater North America. Each of these 353 summits has at least of topographic prominence. This article defines greater North America as the portion of the continental landmass of the Americas extending westward and northward from the Isthmus of Panama plus the islands surrounding that landmass. This article defines the islands of North America to include the coastal islands of North America, the islands of the Caribbean Sea, the Lucayan Archipelago, the Bermuda Islands, the Islands of Greenland (Kalaallit Nunaat), the islands of Northern Canada, the islands of Alaska, and the islands of the northeastern Pacific Ocean. The Hawaiian Islands are not included because they are considered part of Oceania. Topographic elevation is the vertical distance above the reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface. The topographic p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico (state)
The State of Mexico ( es, Estado de México; ), officially just Mexico ( es, México), is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex (from ) to distinguish it from the name of the whole country, it is the most populous, as well as the most densely populated, state in the country. Located in South-Central Mexico, the state is divided into 125 municipalities. The state capital city is Toluca de Lerdo ("Toluca"), while its largest city is Ecatepec de Morelos ("Ecatepec"). The State of Mexico surrounds Mexico City on three sides and borders the states of Querétaro and Hidalgo to the north, Morelos and Guerrero to the south, Michoacán to the west, and Tlaxcala and Puebla to the east. The territory that now comprises the State of Mexico once formed the core of the Pre-Hispanic Aztec Empire. During the Spanish colonial period, the region was incorporated into New Spain. After gaining independence in the 19th century, Mexico City ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of The Highest Major Summits Of North America
The following sortable table comprises the 401 mountain peaks of greater North AmericaThis article defines greater North America as the portion of the continental landmass of the Americas extending westward and northward from the Isthmus of Panama plus the ocean islands surrounding that landmass. This article defines the ocean islands of greater North America to include the coastal islands of North America, the islands of the Caribbean Sea, the Lucayan Archipelago, the islands of Greenland ( Kalaallit Nunaat), the islands of Canada, and the islands of Alaska. The Hawaiian Islands are not included because they are considered part of Oceania. with at least of elevation and at least of topographic prominence.This article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a summit with at least of topographic prominence. All summits in this article have at least 500 meters of topographic prominence. An ultra-pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toluca
Toluca , officially Toluca de Lerdo , is the state capital of the State of Mexico as well as the seat of the Municipality of Toluca. With a population of 910,608 as of the 2020 census, Toluca is the fifth most populous city in Mexico. The city forms the core of the Greater Toluca metropolitan area, which with a combined population of 2,347,692 forms the fifth most populous metropolitan area in the country. Located southwest of Mexico City, the city's rapid growth stems largely from its proximity to the capital. Etymology When Toluca was founded by the Matlatzincas, its original name was ''Nepintahihui'' (land of corn). The current name is based on the Náhuatl name for the area when it was renamed by the Aztecs in 1473. The name has its origin in the word ''tollocan'' that comes from the name of the god, ''Tolo'', plus the locative suffix, ''can'', to denote "place of Tolo". It is also referred to in a number of Aztec codices as ''Tolutépetl'', meaning hill of the god, Tol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevado De Toluca National Park
The Nevado de Toluca National Park is located southwest of the city of Toluca, Mexico State. It was decreed a park in 1936, primarily to protect the Nevado de Toluca volcano, which forms nearly the park's entire surface and is the fourth highest peak in Mexico. It is 45 km from Toluca and 135 from Mexico City. The park was established with the aim of conservation, but the park is under increasing pressure from the growth of the Toluca metropolitan area as well as from illegal logging done by local communities who need the income. The volcano has been long extinct and has a large crater in which are two shallow lakes. The crater and lakes are popular with visitors from Mexico State and Mexico City, especially when there is snow. There are a number of archeological sites in the park, including the lakes themselves, which contain numerous offerings of copal and other items that were deposited during the pre-Hispanic period. The park offers activities such as hiking, mountain bik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toluca Volcano 1 (1)
Toluca , officially Toluca de Lerdo , is the state capital of the State of Mexico as well as the seat of the Municipality of Toluca. With a population of 910,608 as of the 2020 census, Toluca is the fifth most populous city in Mexico. The city forms the core of the Greater Toluca metropolitan area, which with a combined population of 2,347,692 forms the fifth most populous metropolitan area in the country. Located southwest of Mexico City, the city's rapid growth stems largely from its proximity to the capital. Etymology When Toluca was founded by the Matlatzincas, its original name was ''Nepintahihui'' (land of corn). The current name is based on the Náhuatl name for the area when it was renamed by the Aztecs in 1473. The name has its origin in the word ''tollocan'' that comes from the name of the god, ''Tolo'', plus the locative suffix, ''can'', to denote "place of Tolo". It is also referred to in a number of Aztec codices as ''Tolutépetl'', meaning hill of the god, Tolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Before Present
Before Present (BP) years, or "years before present", is a time scale used mainly in archaeology, geology and other scientific disciplines to specify when events occurred relative to the origin of practical radiocarbon dating in the 1950s. Because the "present" time changes, standard practice is to use 1 January 1950 as the commencement date ( epoch) of the age scale. The abbreviation "BP" has been interpreted retrospectively as "Before Physics", which refers to the time before nuclear weapons testing artificially altered the proportion of the carbon isotopes in the atmosphere, which scientists must now account for. In a convention that is not always observed, many sources restrict the use of BP dates to those produced with radiocarbon dating; the alternative notation RCYBP stands for the explicit "radio carbon years before present". Usage The BP scale is sometimes used for dates established by means other than radiocarbon dating, such as stratigraphy. This usage differs from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eruption
Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions: * Magmatic eruptions are the most well-observed type of eruption. They involve the decompression of gas within magma that propels it forward. * Phreatic eruptions are driven by the superheating of steam due to the close proximity of magma. This type exhibits no magmatic release, instead causing the granulation of existing rock. * Phreatomagmatic eruptions are driven by the direct interaction of magma and water, as opposed to phreatic er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archeology
Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology is distinct from palaeontology, which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until the adve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater Lake
A volcanic crater lake is a lake in a crater that was formed by explosive activity or a collapse during a volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent. Crater lakes form as the created depression, within the crater rim, is filled by water. The water may come from precipitation, groundwater circulation (often hydrothermal fluids in the case of volcanic craters) or melted ice. Its level rises until an equilibrium is reached between the rates of incoming and outgoing water. Sources of water loss singly or together may include evaporation, subsurface seepage, and, in places, surface leakage or overflow when the lake level reaches the lowest point on its rim. At such a saddle location, the upper portion of the lake is contained only by its adjacent natural volcanic dam; continued leakage through or surface ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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