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Siete Luminarias
Siete Luminarias (The Seven Luminaries) is a group of seven extinct volcanoes in central Mexico, located in and around the town of Valle de Santiago in the state of Guanajuato. Geography The Siete Luminarias are low-rimmed volcanoes, or maars, with steep-sided, flat-bottomed central craters up to one kilometer in diameter. The seven craters are Hoya la Alberca (1672 meters elevation), Hoya de Cíntora (1703 m), Hoya de Flores or Hoya de Alvarez (2100 m), Rincón de Parangueo (2050 m), Hoya de San Nicolás de Parangueo (1820 m), Hoya Blanca (1819 m), and Hoya Solís (1787 m). The volcanoes are part of the Michoacán–Guanajuato volcanic field. The Siete Luminarias are in the Bajío region, a fertile agricultural region in the southwestern portion of the Mexican Plateau. The Bajío is in the basin of the Lerma River, which flows from east to west to the north of the volcanoes. Four craters – Rincón de Parangueo, San Nicolás de Parangono, La Alberca, and Cíntora – were fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guanajuato
Guanajuato (), officially the Free and Sovereign State of Guanajuato ( es, Estado Libre y Soberano de Guanajuato), is one of the 32 states that make up the Federal Entities of Mexico. It is divided into 46 municipalities and its capital city is Guanajuato. Guanajuato is in central Mexico. It is bordered by the states of Jalisco to the west, Zacatecas to the northwest, San Luis Potosí to the north, Querétaro to the east, and Michoacán to the south. It covers an area of . The state is home to several historically important cities, especially those along the "Bicentennial Route", which retraces the path of Miguel Hidalgo y Costilla's insurgent army at the beginning of the Mexican War of Independence. This route begins at Dolores Hidalgo, and passes through the Sanctuary of Atotonilco, San Miguel de Allende, Celaya, and the capital of Guanajuato. Other important cities in the state include León, the state's biggest city, Salamanca, and Irapuato. The first town established ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lerma River
The Lerma River ( es, Río Lerma) is Mexico's second longest river. It is a river in west-central Mexico that begins in Mexican Plateau at an altitude over above sea level, and ends where it empties into Lake Chapala, Mexico's largest lake, near Guadalajara, Jalisco. Lake Chapala is the starting point of Río Grande de Santiago, which some treat as a continuation of the Lerma River. In combination, the two are often called the Lerma Santiago River ( es, Río Lerma Santiago). The Lerma River is notorious for its pollution, but the water quality has demonstrated considerable improvement in recent years due mostly to government environmental programs and through massive upgrading projects of sanitation works. Course The Lerma River originates from the Lerma lagoons near Almoloya del Río, on a plateau more than above sea level, and southeast of Toluca. The lagoons receive their water from springs rising from basaltic volcanics that flow down from Monte de Las Cruces. These are lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Guanajuato
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 pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Areas Of Guanajuato
Protection is any measure taken to guard a thing against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although the mechanisms for providing protection vary widely, the basic meaning of the term remains the same. This is illustrated by an explanation found in a manual on electrical wiring: Some kind of protection is a characteristic of all life, as living things have evolved at least some protective mechanisms to counter damaging environmental phenomena, such as ultraviolet light. Biological membranes such as bark on trees and skin on animals offer protection from various threats, with skin playing a key role in protecting organisms against pathogens and excessive water loss. Additional structures like scales and hair offer further protection from the elements and from predators, with some animals having features such as spines or camouflage servin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Monuments Of Mexico
Mexico's natural monuments (or ''Monumentos Naturales'' in Spanish) are protected natural areas. Five areas – Bonampak, Cerro de La Silla, Río Bravo del Norte, Yagul, and Yaxchilán – are designated by the Mexican federal government and are administrated by the National Commission of Protected Natural Areas (CONANP). Six others are designated and administered by state governments.UNEP-WCMC (2021). Protected Area Profile for Mexico from the World Database of Protected Areas. Accessed 2 October 2021/ref> CONANP defines Natural Monuments as areas that contain one or more natural elements, that have a unique character, aesthetic, historic, or scientific value, that require absolute protection. Sites do not need to have a variety of ecosystems to be included in this category. List of natural monuments As of September 2021, there were eleven sites in Mexico designated as natural monuments. * Bernal de Horcasitas in Tamaulipas (156.77 km² km2). Designated in 1997. * Bonampak in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregion
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species. The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bajío Dry Forests
The Bajío dry forests is a tropical dry broadleaf forest ecoregion in western−central Mexico. Geography The Bajío dry forests lie in the southwestern portion of the Mexican Plateau. They are bounded on the southeast, south, and southwest by the Trans-Mexican Volcanic Belt pine-oak forests, which occupy the folded mountains and volcanoes of the Trans-Mexican Volcanic Belt that form the southern edge of the Mexican Plateau. The Sierra Madre Occidental pine-oak forests of the Sierra Madre Occidental bound the ecoregion on the northwest. The numerous mountains of the plateau which rise above the dry forests are occupied by sky islands of pine-oak forest. To the north, the Bajío dry forests transition to the drier, more temperate Central Mexican matorral. Most of the ecoregion lies within the basin of the Lerma River, and the dry forests extend around Lake Chapala at the eastern end of the region, and into the endorheic basins of Lake Cuitzeo and Lake Pátzcuaro in the south. ... [...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 outflow ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Plateau
The Central Mexican Plateau, also known as the Mexican Altiplano ( es, Altiplanicie Mexicana), is a large arid-to-semiarid plateau that occupies much of northern and central Mexico. Averaging above sea level, it extends from the US-Mexico border, United States border in the north to the Trans-Mexican Volcanic Belt in the south, and is bounded by the and to the west and east, respectively. A low east-west mountain range in the state of Zacatecas divides the plateau into northern and southern sections. These two sections, called the Northern Plateau () and Central Plateau (), are now generally regarded by geographers as sections of one plateau. The Mexican Plateau is mostly covered by deserts and xeric shrublands, with madrean pine-oak woodlands, pine-oak forests covering the surrounding mountain ranges and forming sky islands on some of the interior ranges. The Mexican Altiplano is one of six distinct physiographic sections of the Basin and Range Province, which in turn is part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bajío
El Bajío (the ''lowland'') is a cultural and geographical region within the central Mexican plateau which roughly spans from north-west of the Mexico City metropolitan area to the main silver mines in the northern-central part of the country. This includes (from south to north) the states of Querétaro, Guanajuato, parts of Jalisco (Centro, Los Altos de Jalisco), Aguascalientes and parts of Zacatecas, San Luis Potosí and Michoacán. Located at the border between Mesoamerica and Aridoamerica, El Bajío saw relatively few permanent settlements and big civilizations during Pre-Columbian history, being mostly inhabited by nomadic tribes known to the Aztecs as " The Chichimeca" peoples (''the barbarians''), another Nahua group from whom the Toltec and the Aztecs were probably descended. The tribes that inhabited El Bajío proved to be some of the hardest to conquer for the Spanish, but due to its strategic location in the Silver route, it also drew prominent attention from the Span ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michoacán–Guanajuato Volcanic Field
Michoacán–Guanajuato volcanic field is located in the Michoacán and Guanajuato states of central Mexico. It is a volcanic field that takes the form of a large cinder cone field, with numerous shield volcanoes and maars. Pico de Tancítaro (3860 m) is the highest peak. The volcanic field is best known for the 18th-century eruption of Jorullo volcano, and 20th-century eruption of Parícutin volcano. Morphology The Michoacán–Guanajuato volcanic field covers an area of , in the states of Michoacán and Guanajuato. It contains 1400 vents, mostly cinder cones. The shield volcanoes are mostly Pleistocene in age. The field includes Siete Luminarias, a group of seven maars in and around Valle de Santiago in Guanajuato. Other volcanoes in the field include Alberca de los Espinos in Michoacán and Cerro Culiacán in Guanajuato. The cinder cones are randomly arranged and occur at low altitudes, usually, on alluvial plains or on the flanks of eroded shield volcanoes. There ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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