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Castor Temple
Castor is a summit located in the Grand Canyon, in Coconino County of northern Arizona, United States. It is situated 11 miles west-northwest of Grand Canyon Village, and less than one mile north of Piute Point. Pollux Temple is one mile southeast, and Geikie Peak is three miles to the east. Topographic relief is significant as Castor Temple rises over above the Colorado River in two miles. Castor Temple is named for Castor, the twin half-brother of Pollux according to Greek mythology. In ancient Rome, the Temple of Castor and Pollux was in close proximity to the Temple of Vesta, and in the Grand Canyon, Vesta Temple is situated less than four miles to the southeast. Clarence Dutton began the tradition of naming geographical features in the Grand Canyon after mythological deities. This geographical feature's name was officially adopted in 1964 by the U.S. Board on Geographic Names. According to the Köppen climate classification system, Castor Temple is located in a Cold s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollux Temple
Pollux Temple is a summit in the Grand Canyon, in Coconino County of northern Arizona, US. It is situated ten miles northwest of Grand Canyon Village, and less than one mile northeast of Jicarilla Point. Castor Temple is one mile northwest, and Diana Temple is one mile southeast. Topographic relief is significant as Pollux Temple rises nearly above the Colorado River in less than two miles. Pollux Temple is named for Pollux, the divine son of Zeus according to Greek mythology. Clarence Dutton began the practice of naming geographical features in the Grand Canyon after mythological deities. According to the Köppen climate classification system, Pollux Temple is located in a Cold semi-arid climate zone. Geology The top of Pollux Temple is composed of Permian Toroweap Formation overlaying cream-colored, cliff-forming, Permian Coconino Sandstone. The sandstone, which is the third-youngest of the strata in the Grand Canyon, was deposited 265 million years ago as sand dunes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castor And Pollux
Castor; grc, Κάστωρ, Kástōr, beaver. and Pollux. (or Polydeukes). are twin half-brothers in Greek and Roman mythology, known together as the Dioscuri.; grc, Διόσκουροι, Dióskouroi, sons of Zeus, links=no, from ''Dîos'' ('Zeus') and '' koûroi'' ('boys'). Their mother was Leda, but they had different fathers; Castor was the mortal son of Tyndareus, the king of Sparta, while Pollux was the divine son of Zeus, who raped Leda in the guise of a swan. The pair are thus an example of heteropaternal superfecundation. Though accounts of their birth are varied, they are sometimes said to have been born from an egg, along with their twin sisters Helen of Troy and Clytemnestra. In Latin the twins are also known as the Gemini (literally "twins") or Castores, as well as the Tyndaridae or Tyndarids.. Pollux asked Zeus to let him share his own immortality with his twin to keep them together, and they were transformed into the constellation Gemini. The pair were regarded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coconino Sandstone
Coconino Sandstone is a geologic formation named after its exposure in Coconino County, Arizona. This formation spreads across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. This rock formation is particularly prominent in the Grand Canyon, where it is visible as a prominent white cliff-forming layer. The thickness of the formation varies due to regional structural features; in the Grand Canyon area it is only thick in the west, thickens to over in the middle and then thins to in the east. Either the Kaibab Limestone or Toroweap Formation overlies the Coconino Sandstone. The Coconino Sandstone is typically buff to white in color. It consists primarily of fine well-sorted quartz grains, with minor amounts of potassium feldspar grains deposited by eolian processes (wind-deposited) approximately 275 million years ago. Several structural features such as ripple marks, sand dune deposits, rain patches, slump ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toroweap Formation
The Middle Permian Toroweap Formation is a thin, darker geologic unit, between the brighter colored units of the Kaibab Limestone above, and Coconino Sandstone below. It is a prominent unit in Grand Canyon, Arizona, USA, found through sections of the South Rim, Grand Canyon, and the North Rim, of the Kaibab Plateau; also the Kaibab's southeast extension to Cape Royal, the Walhalla Plateau. The Colorado River of the Grand Canyon makes its excursion from due-south to due-west around the Walhalla Plateau, as it enters the east end of the Grand Canyon's interior, Granite Gorge. The formation is also found in southeast Utah. The Toroweap Formation is a darker unit of gypsum and shale; also sandstone. In photos the '' cliff-forming'' Kaibab and Coconino units, show the more erodable Toroweap Formation '' slope-forming'' accumulations upon the underlying Coconino Sandstone; likewise below the Coconino, the softer Hermit Formation is shown forming slopes, above the slope forming 're ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Ascent
In mountaineering, a first ascent (abbreviated to FA in guide books) is the first successful, documented attainment of the top of a mountain or the first to follow a particular climbing route. First mountain ascents are notable because they entail genuine exploration, with greater risks, challenges and recognition than climbing a route pioneered by others. The person who performs the first ascent is called the first ascensionist. In free climbing, a first ascent (or first free ascent, abbreviated FFA) of a climbing route is the first successful, documented climb of a route without using equipment such as anchors or ropes for aiding progression or resting. History The details of the first ascents of even many prominent mountains are scanty or unknown; sometimes the only evidence of prior summiting is a cairn, artifacts, or inscriptions at the top. Today, first ascents are generally carefully recorded and usually mentioned in guidebooks. The term is also used when referrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonto Trail
The Tonto Trail is a hiking trail on the South Rim of the Grand Canyon in Grand Canyon National Park, located in the U.S. state of Arizona. Access The Tonto Trail does not terminate at either rim of the Grand Canyon, but begins along the south bank of the Colorado River at Garnet Canyon (western end) and ends at Red Canyon (eastern end), also at the Colorado River. Through most of its 95-mile length, the trail runs along the Tonto Platform, the bench in the Grand Canyon that separates the inner gorge from the upper canyon. 95 miles (152.9 km): Garnet Canyon to Red Canyon Approximate mileages between key points on the Tonto Trail: 11.6 miles (18.7 km): Garnet Creek to Bass Canyon 35.7 miles (57.5 km): Bass Canyon to Hermit Creek 12 miles (19.3 km): Hermit Creek to Bright Angel Trail (Indian Garden) 4.5 miles (7.2 km): Bright Angel Trail to South Kaibab Trail 21.3 miles (34.3 km): South Kaibab Trail to Grandview Trail (Horseshoe Mesa) 9.9 miles (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Semi-arid Climate
A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes. Defining attributes of semi-arid climates A more precise definition is given by the Köppen climate classification, which treats steppe climates (''BSk'' and ''BSh'') as intermediates between desert climates (BW) and humid climates (A, C, D) in ecological characteristics and agricultural potential. Semi-arid climates tend to support short, thorny or scrubby vegetation and are usually dominated by either grasses or shrubs as it usually can't support forests. To determine if a location has a semi-arid climate, the precipitation threshold must first be determined. The method used to find the precipitation threshold (in millimeters): *multiply ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarence Dutton
Clarence Edward Dutton (May 15, 1841 – January 4, 1912) was an American geologist and US Army officer. Dutton was born in Wallingford, Connecticut on May 15, 1841. He graduated from Yale College in 1860 and took postgraduate courses there until 1862, when he enlisted in the 21st Connecticut Volunteer Infantry; he fought at Fredericksburg, Suffolk, Nashville and Petersburg. He was elected as a member to the American Philosophical Society in 1871. In 1875, he began work as a geologist for John Wesley Powell and, after 1879, for the U.S. Geological Survey. Working chiefly in the Colorado Plateau region, he wrote several classic papers, including geological studies of the high plateaus of Utah (1879–80), the Cenozoic history of the Grand Canyon district (1882), and the Charleston, South Carolina, earthquake of 1886. As head of the division of volcanic geology at the USGS, he studied volcanism in Hawaii, California, and Oregon. He helped coordinate the scientific response to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vesta Temple
Vesta Temple is a summit located in the Grand Canyon, in Coconino County of northern Arizona, US. It is situated eight miles west-northwest of Grand Canyon Village, and immediately northeast of Mimbreno Point. Marsh Butte is one mile northeast, Eremita Mesa immediately southeast, and nearest higher neighbor Diana Temple is one mile north. Topographic relief is significant as Vesta Temple rises above the Colorado River in 2.5 miles. Vesta Temple is named for Vesta, the goddess of the hearth, home, and family according to Roman mythology. Clarence Dutton began the practice of naming geographical features in the Grand Canyon after mythological deities. This geographical feature's name was officially adopted in 1908 by the U.S. Board on Geographic Names. According to the Köppen climate classification system, Vesta Temple is located in a Cold semi-arid climate zone. Geology The summit of Vesta Temple is composed of Permian Kaibab Limestone and Toroweap Formation overlayi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temple Of Vesta
The Temple of Vesta, or the aedes (Latin ''Aedes Vestae''; Italian: ''Tempio di Vesta''), is an ancient edifice in Rome, Italy. The temple is located in the Roman Forum near the Regia and the House of the Vestal Virgins. The Temple of Vesta housed Vesta's holy fire, which was a symbol of Rome's safety and prosperity. The temple's most recognizable feature is its circular footprint. Since the worship of Vesta began in private homes, the architecture seems to pay homage to the architecture of early Roman homes. The temple used Greek architecture with Corinthian columns, marble, and had a central cella. The surviving structure indicates that there were twenty Corinthian columns built on a podium fifteen meters in diameter. The roof probably had a vent at the apex to allow smoke to release. History Origins The Temple of Vesta was first built by Numa Pompilius, who was Rome's second king. During his time in power he also built the original Regia and House of the Vestal Virgins a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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