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Chinati Mountains
The Chinati Mountains of Texas are a small range in the high desert of far West Texas near the city of Presidio. There is a pass through the mountains on Ranch to Market Road 2810, also known as Pinto Canyon Road, which connects to Farm to Market Road 170 at Ruidosa, Texas. Some believe the range derives its name from the Apache word ch'íná'itíh, which means gate or mountain pass. The mountains are primarily composed of igneous and metamorphic rocks, and are believed to be the remains of a number of explosive volcanic caldera-building events in the remote past. The mountains are generally not forested, but rather vegetated with grasses, cactus, and brush typical of the Chihuahuan Desert. The Chinatis were extensively mined for silver from the 1860s through the 1910s. The highest point in the range is Chinati Peak, with an elevation of . Chinati Peak is also the highest point in Presidio County. It serves as a major landmark for the surrounding area, and its dome-shaped hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Igneous
Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust. Geological significance Igneous and metamorphic rocks make up 90–95% of the top ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Presidio County, Texas
Presidio County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 6,131. Its county seat is Marfa. The county was created in 1850 and later organized in 1875. Presidio County (K-5 in Texas topological index of counties) is in the Trans-Pecos region of West Texas and is named for the border settlement of Presidio del Norte. It is on the Rio Grande, which forms the Mexican border. History Native Americans Paleo-Indians (hunter-gatherers) existed thousands of years ago on the Trans-Pecos, and often did not adapt to culture clashes, European diseases, and colonization. The Masames tribe was exterminated by the Tobosos, ''circa'' 1652. The Nonojes suffered from clashes with the Spanish and merged with the Tobosos. The Spanish made slave raids to the La Junta de los Ríos, committing cruelties against the native population. The Suma-Jumano tribe sought to align themselves with the Spanish for survival. The tribe later merged with the Apa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infernito Caldera
The Infiernito Caldera is a volcanic caldera located north of the Chinati Mountains in West Texas. It is approximately in diameter and is the oldest caldera of the Chinati Mountain Caldera Complex, having formed about 37 million years ago. The eruption that formed the Infiernito Caldera deposited volcanic ash Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer ... as far as away, with most of the ejecta having fallen to the northwest. References Volcanoes of Texas Oligocene calderas Calderas of Texas {{Texas-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinati Mountain Caldera Complex
The Chinati Mountains Caldera Complex is a caldera complex located primarily in the Chinati Mountains within the Trans-Pecos Volcanic Field in Texas, United States. It is the largest and most documented volcano within the Trans-Pecos Volcanic Field, consisting mostly of two calderas: the Infernito Caldera The Infiernito Caldera is a volcanic caldera located north of the Chinati Mountains in West Texas. It is approximately in diameter and is the oldest caldera of the Chinati Mountain Caldera Complex, having formed about 37 million years ago. The er ... and the Chinati Mountain Caldera. The main caldera, Chinati Mountain, erupted about 32-31 million years ago which resulted in the deposition of the Mitchell Mesa Tuff. The Infernito Caldera predates the Chinati Mountains Caldera, having deposited the Infernito Tuff about 37 million years ago. It was partially destroyed by the formation of the Chinati Mountains Caldera. The main caldera, on the western side, consists primarily of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard King Mellon
Richard King Mellon (June 19, 1899 – June 3, 1970), commonly known as R.K., was an American financier, general, and philanthropist from Ligonier, Pennsylvania, and part of the Mellon family. Biography The son of Richard B. Mellon, nephew of Andrew W. Mellon, and grandson of Thomas Mellon, he and his sister Sarah Mellon Scaife and cousins Paul Mellon and Ailsa Mellon-Bruce, were heirs to the Mellon fortune, which included major holdings in Mellon Bank, Gulf Oil, and Alcoa. In 1957, when ''Fortune'' prepared its first list of the wealthiest Americans, it estimated that the four cousins were all amongst the richest eight people in the United States, with fortunes of between $400 million and $700 million dollars each. R.K. Mellon served as president and chairman of Mellon Bank. He also served on the board of trustees of the University of Pittsburgh over a span of several decades and was a major benefactor to the university. Military service Mellon served in the United States Arm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas Parks And Wildlife Department
The Texas Parks & Wildlife Department (TPWD) is a Texas state agency that oversees and protects wildlife and their habitats. In addition, the agency is responsible for managing the state's parks and historical areas. Its mission is to manage and conserve the natural and cultural resources of Texas and to provide hunting, fishing, and outdoor recreation opportunities for the use and enjoyment of present and future generations. The agency maintains its headquarters at 4200 Smith School Road in Austin. History In 1895, the Texas Legislature created the Fish and Oyster Commission to regulate fishing. The legislature added the Game Department to the commission in 1907. The Legislature created the State Parks Board as a separate entity in 1923. In 1963, the Texas Parks and Wildlife Department was formed through merger of the State Parks Board and the Game and Fish Commission. In 1983, the Texas legislature passed the Wildlife Conservation Act, giving the department the authority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marfa, Texas
Marfa is a city in the high desert of the Trans-Pecos in far West Texas, between the Davis Mountains and Big Bend National Park. It is the county seat of Presidio County, Texas, Presidio County, and its population as of the 2010 United States Census was 1,981. The city was founded in the early 1880s as a water stop; the population increased during World War II, but growth has stalled and reversed somewhat since the late 20th century. Today, Marfa is a tourist destination and a major center for Minimalism (visual arts), minimalist art. Attractions include Building 98, the Chinati Foundation, artisan shops, historical architecture, a classic Texas town square, modern art installments, art galleries, and the Marfa lights. History Marfa was founded in the early 1880s as a railroad water stop. The town was named "Marfa" (Russian for "Martha") at the suggestion of the wife of a railroad executive. Although some historians have hypothesized that the name came from a character in Fyodor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Van Horn, Texas
Van Horn is a town in and the seat of Culberson County, Texas, United States. According to the 2010 census, Van Horn had a population of 2,063, down from 2,435 at the 2000 census. The 2020 census results detailed a decline in population to 1,941. Van Horn's official newspaper is ''The Van Horn Advocate''. The town is the westernmost incorporated community in the United States that uses the Central Time Zone. Geography Van Horn is located in southwestern Culberson County at (31.042489, –104.832928). Interstate 10 passes through the town, leading east to Fort Stockton and northwest to El Paso. Van Horn is the western terminus of U.S. Route 90; from Van Horn it leads southeast to Marfa. Texas State Highway 54 leads north from Van Horn to Pine Springs and the Guadalupe Mountains. According to the United States Census Bureau, the town has a total area of , all land. Threemile Peak, elevation , rises to the northwest overlooking the town. Climate History Anglo-Texan settle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chihuahuan Desert
The Chihuahuan Desert ( es, Desierto de Chihuahua, ) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States. It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lower Pecos Valley in New Mexico, and a portion of southeastern Arizona, as well as the central and northern portions of the Mexican Plateau. It is bordered on the west by the Sonoran Desert, the Colorado Plateau, and the extensive Sierra Madre Occidental range, along with northwestern lowlands of the Sierra Madre Oriental range. Its largest, continual expanse is located in Mexico, covering a large portion of the state of Chihuahua, along with portions of Coahuila, north-eastern Durango, the extreme northern part of Zacatecas, and small western portions of Nuevo León. With an area of about , it is the largest desert in North America. The desert is fairly young, existing for only 8000 years. Geography There are several larger mountain ranges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by both List of U.S. states and territories by area, area (after Alaska) and List of U.S. states and territories by population, population (after California). Texas shares borders with the states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexico, Mexican States of Mexico, states of Chihuahua (state), Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south and southwest; and has a coastline with the Gulf of Mexico to the southeast. Houston is the List of cities in Texas by population, most populous city in Texas and the List of United States cities by population, fourth-largest in the U.S., while San Antonio is the second most pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Texas At Austin
The University of Texas at Austin (UT Austin, UT, or Texas) is a public research university in Austin, Texas. It was founded in 1883 and is the oldest institution in the University of Texas System. With 40,916 undergraduate students, 11,075 graduate students and 3,133 teaching faculty as of Fall 2021, it is also the largest institution in the system. It is ranked among the top universities in the world by major college and university rankings, and admission to its programs is considered highly selective. UT Austin is considered one of the United States's Public Ivies. The university is a major center for academic research, with research expenditures totaling $679.8 million for fiscal year 2018. It joined the Association of American Universities in 1929. The university houses seven museums and seventeen libraries, including the LBJ Presidential Library and the Blanton Museum of Art, and operates various auxiliary research facilities, such as the J. J. Pickle Research Ca ... [...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 volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is gone. 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 each century, the formation of a caldera is a rare event, occurring only a few times per century. Only seven caldera-forming collapses are known to have occurred between 1911 and 2016. More recently, a caldera collapse occurred at Kīlauea, Hawaii in 2018. Etymology The term ''caldera'' comes from Spanish language, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
