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Eagle Mesa
Eagle Mesa is a summit in San Juan County, Utah, United States. Description Eagle Mesa is situated northeast of Oljato–Monument Valley, Utah, on Navajo Nation land. It is, together with Setting Hen, an iconic landform of Monument Valley and can be seen from Highway 163. Precipitation runoff from this mesa's slopes drains to Mitchell Butte Wash and Train Rock Wash which are both part of the San Juan River drainage basin. Topographic relief is significant as the summit rises above surrounding terrain in 0.6 mile (1 km). The nearest higher neighbor is Brighams Tomb, to the east. This landform's toponym has been officially adopted by the United States Board on Geographic Names. Navajo names for the mesa are "Wide Rock", "Where the Eagles Roost", "Water Basket Sits", and "Trees Hanging from Surrounding Belt" because there were once numerous trees here.Samuel Holiday, ''Under the Eagle: Samuel Holiday, Navajo Code Talker'', University of Oklahoma Press, 2013, . In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brighams Tomb
Brighams Tomb is a summit in San Juan County, Utah, United States. Description Brighams Tomb is situated northeast of Oljato–Monument Valley, Utah, on Navajo Nation land. It is an iconic landform of Monument Valley and can be seen from Highway 163. Precipitation runoff from this landform's slopes drains into the San Juan River drainage basin. Topographic relief is significant as the summit rises above the surrounding terrain in 0.25 mile (0.4 km). The mountain's name refers to Brigham Young, the first governor of the Utah Territory. This landform's toponym was officially adopted/revised in 1988 by the United States Board on Geographic Names after having been officially named "Saddleback" from 1964 through 1987. Some older maps will still show the Saddleback name. Geology Brighams Tomb is composed of three principal strata. The bottom layer is slope-forming Organ Rock Shale, the next stratum is cliff-forming De Chelly Sandstone, and the upper layer is Moenkopi For ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Beckey
Friedrich Wolfgang Beckey (14 January 1923 – 30 October 2017), known as Fred Beckey, was an American rock climber, mountaineer and book author, who in seven decades of climbing achieved hundreds of first ascents of some of the tallest peaks and most important routes throughout Alaska, the Canadian Rockies and the Pacific Northwest. Among the Fifty Classic Climbs of North America, seven were established by Beckey, often climbing with some of the best known climbers of each generation. Early years Beckey was born in 1923 near Düsseldorf, Germany to Klaus Beckey, a surgeon, and Marta Maria Beckey who was an opera singer. In 1925 economic hardships due to hyperinflation in the Weimar Republic forced his family to emigrate to the United States, settling in Seattle, Washington. His brother, Helmut "Helmy" Beckey, was born in Seattle in 1926 and would later become Fred's frequent climbing partner. At age twelve, Fred Beckey climbed Boulder Peak in the Cascades by himself, after wand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stagecoach (San Juan County, Utah)
Stagecoach is a summit in San Juan County, Utah, United States. Description Stagecoach is situated north-northeast of the Monument Valley Tribal Park Visitor Center, on Navajo Nation land. It is an iconic landform of Monument Valley and can be seen from Highway 163. Precipitation runoff from this landform's slopes drains into the San Juan River drainage basin. Topographic relief is significant as the summit rises above the surrounding terrain in 0.35 mile (0.56 km). This landform's toponym has been officially adopted by the United States Board on Geographic Names. It is so named because the butte resembles a stagecoach. The first ascent of the summit was made in 1995 by John Middendorf, Carl Tobin, and Dan Langmade. Geology Stagecoach is composed of two principal strata. The bottom layer is slope-forming Organ Rock Shale and the upper stratum is cliff-forming De Chelly Sandstone. The rock was deposited during the Permian period. The buttes and mesas of Monument V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forrest Gump
''Forrest Gump'' is a 1994 American comedy-drama film directed by Robert Zemeckis. An adaptation of the Forrest Gump (novel), 1986 novel by Winston Groom, the screenplay of the film is written by Eric Roth. It stars Tom Hanks in the title role, alongside Robin Wright, Gary Sinise, Mykelti Williamson, and Sally Field in lead roles. The film follows the life of an Alabama man named Forrest Gump (Hanks) and his experiences in the 20th century in the United States, 20th-century United States. Principal photography took place between August and December 1993, mainly in Georgia (U.S. state), Georgia, North Carolina, and South Carolina. Extensive visual effects were used to incorporate Hanks into archived footage and to develop other scenes. The Forrest Gump (soundtrack), soundtrack features songs reflecting the different periods seen in the film. Various interpretations have been made of the protagonist and the film's political symbolism. ''Forrest Gump'' was released in the Unite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diurnal Temperature Variation
In meteorology, diurnal temperature variation is the variation between a high air temperature and a low temperature that occurs during the same day. Temperature lag Temperature lag, also known as thermal inertia, is an important factor in diurnal temperature variation. Peak daily temperature generally occurs ''after'' noon, as air keeps absorbing net heat for a period of time from morning through noon and some time thereafter. Similarly, minimum daily temperature generally occurs substantially after midnight, indeed occurring during early morning in the hour around dawn, since heat is lost all night long. The analogous annual phenomenon is seasonal lag. As solar energy strikes the Earth's surface each morning, a shallow layer of air directly above the ground is heated by conduction. Heat exchange between this shallow layer of warm air and the cooler air above is very inefficient. On a warm summer's day, for example, air temperatures may vary by from just above the ground t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 (''BSh'' and ''BSk'') 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 they usually cannot 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): * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Köppen Climate Classification
The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. 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'' indicates a tropical rainforest climate. The system assigns a temperature subgroup for all groups other than those in the ''A'' group, indicated by the third letter for climates in ''B'', ''C'', ''D'', and the second letter for climates in ''E''. Other examples include: ''Cfb'' indicating an oceanic climate with warm summers as indicated by the ending ''b.'', while ''Dwb'' indicates a semi-Monsoon continental climate, monsoonal continental climate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Triassic
The Late Triassic is the third and final epoch (geology), epoch of the Triassic geologic time scale, Period in the geologic time scale, spanning the time between annum, Ma and Ma (million years ago). It is preceded by the Middle Triassic Epoch and followed by the Early Jurassic Epoch. The corresponding series (stratigraphy), series of rock beds is known as the Upper Triassic. The Late Triassic is divided into the Carnian, Norian and Rhaetian Geologic time scale, ages. Many of the first dinosaurs evolved during the Late Triassic, including ''Plateosaurus'', ''Coelophysis'', ''Herrerasaurus'', and ''Eoraptor''. The Triassic–Jurassic extinction event began during this epoch and is one of the five major mass extinction events of the Earth. Etymology The Triassic was named in 1834 by Friedrich August von Namoh, Friedrich von Alberti, after a succession of three distinct rock layers (Greek meaning 'triad') that are widespread in southern Germany: the lower Buntsandstein (colourful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and System (stratigraphy), 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 251.902 Mya. It is the sixth and 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 Perm Governorate, region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the Sauropsida, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shinarump Conglomerate
The Shinarump Conglomerate is a geologic formation found in the Four Corners region of the United States. It was deposited in the early part of the Late Triassic Period (geology), period. Description The Shinarump Conglomerate is a highly resistant coarse-grained sandstone and pebble conglomerate (minor or major conglomerates are a typical base layer after unconformities or disconformities; the Shinarump is a major conglomerate) with rare lenses of mudstone, sometimes forming a caprock because of its hardness, cementation, and erosion resistance. The Shinarump is found throughout the Colorado Plateau with significant exposures as the canyon rimrock in the vicinity of Canyon De Chelly National Monument, at the north-northeast of the Defiance Plateau/Defiance Uplift. At Canyon De Chelly the Shinarump Conglomerate was laid down upon De Chelly Sandstone-(280 Ma, an erosion unconformity of 50 my), in a region at the west foothill region of the mostly north–south trending Chuska Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moenkopi Formation
The Moenkopi Formation is a geological formation that is spread across the U.S. states of New Mexico, northern Arizona, Nevada, southeastern California, eastern Utah and western Colorado. This unit is considered to be a Geological unit, group in Arizona. Part of the Colorado Plateau and Basin and Range Province, Basin and Range, this red sandstone was laid down in the Early Triassic, Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago. History of investigation There is no designated Type locality (geology), type locality for this formation. It was named for a development at the mouth of Moencopie Wash in the Grand Canyon area by Ward in 1901. In 1917 a 'substitute' type locality was located by Gregory in the wall of the Little Colorado Canyon, about 5 miles below Tanner Crossing in Coconino County, Arizona. While in the Great Basin, Bassler and Reeside characterized and named the Rock Canyon Conglomerate, Virgin Limestone, and Shnabkaib Shale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Chelly Sandstone
The Yeso Group is a group of geologic formations in New Mexico. It contains fossils characteristic of the Kungurian Age of the early Permian Period. Description The Yeso Group is lithologically complex, ranging from marine shelf carbonate rock to the south through shoreline and sabkha beds to eolian dune and sheet sand deposits to the north. It is exposed in the mountains and other uplifts bordering the Rio Grande Rift and in the Pecos River valley. It is present in the subsurface in the Raton Basin. The group records a major marine transgression from the south during the early Leonardian (Kungurian). In the Jemez Mountains, the group consists of massive cross-bedded lower beds ( De Chelly Sandstone) and thinner upper beds ( San Ysidro Formation) suggesting a more fluvial depositional environment. The Yeso Group is exposed extensively in the Jemez Mountains, but pinches out in the northern Jemez, delineating the northern limit of the dune field from which it arose. Fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
