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Granite Mountains (California)
The Granite Mountains are a small mountain range in San Bernardino County, California, USA, located in the Mojave Desert. They are in the Mojave National Preserve, in the National Park Service system. The University of California operates thGranite Mountain Natural Reserveon 9000 acres of land within the Mojave National Preserve. The Granite Mountains Natural Reserve is a research and teaching center that was established by the late ProfessoDr. Kenneth Norrisof U.C. Santa Cruz in 1978 and is now managed out of UC Riverside. Students and faculty have completed extensive studies of the natural history of the Granite Mountains since the reserve's inception. This is one of 37 reserves in thUC Natural Reserve System Geography The Granite Mountains are north of Interstate 40 in California, Interstate 40 and historic U.S. Route 66 in California, Route 66. The Providence Mountains are adjacent to the northeast. The Bristol Mountains are directly to the west, the Old Woman Mountains are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelbaker Road
Kelbaker Road is a Road surface, paved road in San Bernardino County, California, that serves as the primary and busiest route through the Mojave National Preserve. It also connects the communities of Kelso, California, Kelso and Baker, California, Baker. Its southern terminus is at County Route 66 (California), County Route 66 between Amboy, California, Amboy and Chambless, California, Chambless. Kelbaker Road's northern terminus is at Interstate 15 in California, Interstate 15 in Baker. The road then continues as California State Route 127 northward to Nevada, connecting to Nevada State Route 373, passing near Death Valley National Park. Route description Kelbaker Road begins at County Route 66 (California), County Route 66, part of the National Trails Highway (Historic U.S. Route 66, Route 66) between Amboy, California, Amboy and Chambless, California, Chambless. It then travels north between the Bristol Mountains on the west and the Marble Mountains (San Bernardino County), Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludlow, California
Ludlow is an unincorporated community in the Mojave Desert on Interstate 40, located in San Bernardino County, California, United States. The older remains of the ghost town are along historic Route 66. History Origins The community settlement dates back to 1870s. The community of Ludlow was named after William Ludlow of Southern Pacific Railroads. In 1882, the town was founded. The town started as a water stop for the Atlantic and Pacific Railroad. Ore was found in the nearby hills, leading to the town's boom. From 1906 to 1940 it was the southern railhead for the Tonopah and Tidewater Railroad, operated by the Pacific Coast Borax Company and bringing borax and other mining products from Death Valley and Beatty, Nevada, to long distance Santa Fe Railway lines. It also served as the northern railhead for the Ludlow and Southern Railway, a mining line that ran south to the Bagdad-Chase gold mine and the mining camp of Rochester. It operated from 1903 to 1931. Route 66 By th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Areas Of The Mojave Desert
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 (botany), 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 Scale (anatomy), scales and hair offer further protection from the elements and from predators, with some animals having features such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Ranges Of The Mojave Desert
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camp Granite
The Camp Granite was a sub camp of the US Army Desert Training Center in Riverside County, California. The main headquarters for the Desert Training Center was Camp Young were General Patton's 3rd Armored Division was stationed. Camp Granite was designated a California Historic Landmark (No.985.2). The site of the Camp Granite is 45 miles East of Indio, California off Interstate 10 and California State Route 62 near the Granite Mountains. Built in the spring of 1943, Camp Granite was built to prepare troops to do battle in North Africa to fight the Nazis during World War II. The original camp had to quickly be moved to higher ground due to flooding. At Camp Granite were stationed the 90th Infantry Division and 104th Infantry Divisions. Among the smaller units known to have been stationed at Camp Granite were the 76th Field Artillery Regiment and the 413th Infantry Regiment. XV Corps (United States) used Camp Granite as there headquarters from July- 1943 to November 1943. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spring (hydrosphere)
A spring is a point of exit at which groundwater from an aquifer flows out on top of Earth's crust (pedosphere) and becomes surface water. It is a component of the hydrosphere. Springs have long been important for humans as a source of fresh water, especially in arid regions which have relatively little annual rainfall. Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure. Their yield varies widely from a volumetric flow rate of nearly zero to more than for the biggest springs. Formation Springs are formed when groundwater flows onto the surface. This typically happens when the groundwater table reaches above the surface level. Springs may also be formed as a result of karst topography, aquifers, or volcanic activity. Springs also have been observed on the ocean floor, spewing hot water directly into the ocean. Springs formed as a result of karst topography create karst springs, in which ground water travels throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceanic Crust
Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumulates. The crust overlies the rigid uppermost layer of the mantle. The crust and the rigid upper mantle layer together constitute oceanic lithosphere. Oceanic crust is primarily composed of mafic rocks, or sima, which is rich in iron and magnesium. It is thinner than continental crust, or sial, generally less than 10 kilometers thick; however, it is denser, having a mean density of about 3.0 grams per cubic centimeter as opposed to continental crust which has a density of about 2.7 grams per cubic centimeter. The crust uppermost is the result of the cooling of magma derived from mantle material below the plate. The magma is injected into the spreading center, which consists mainly of a partly solidified crystal mush derived from earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magma
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing. Following its ascent through the crust, magma may feed a volcano and be extruded as lava, or it may solidify underground to form an intrusion, such as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andes
The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S latitude), and has an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano plateau is the world's second-highest after the Tibetan plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. The Andes Mountains are the highest m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesozoic
The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian reptiles, like the dinosaurs; an abundance of conifers and ferns; a hot Greenhouse and icehouse earth, greenhouse climate; and the tectonic break-up of Pangaea. The Mesozoic is the middle of the three eras since Cambrian explosion, complex life evolved: the Paleozoic, the Mesozoic, and the Cenozoic. The era began in the wake of the Permian–Triassic extinction event, the largest well-documented mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs, Pterosaur, pterosaurs, Mosasaur, mosasaurs, and Plesiosaur, plesiosaurs. The Mesozoic was a time of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental-margin
A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters. It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges. The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. The continental shelf is the relatively shallow water area found in proximity to continents. Continental margins constitute about 28% of the oceanic area. Zones of the continental margin The continental shelf is the portion of the continental margin that transitions from the shore out towards to ocean. Continental shelves are believed to make up 7% of the sea floor. The width of continental shelves worldwide varies in the range of 0.03–1500 km. The continental shelf is generally flat, and ends at the shelf break, where there is a drastic increase in slope angle: The mean angle of continental shelves worldwide is 0° 07′, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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