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Ah-Shi-Sle-Pah Wilderness Study Area
Ah-Shi-Sle-Pah Wilderness is located in San Juan County, New Mexico, between Chaco Canyon and the De-Na-Zin Wilderness. Its name is a phonetic transliteration of Navajo " áshįįh łibá" meaning "salt, it is grey (grey salt)". The wilderness has multicolored badlands, sandstone hoodoos, petrified wood and dinosaur bones, similar to those found in the nearby Bisti Badlands and De-Na-Zin Wilderness. History The BLM Wilderness Study Area (WSA) was declared in May 1992 and would protect an area of about 26.5 km2 (6,563 acres). The area was prospected by the dinosaur hunter Charles Hazelius Sternberg in the summer of 1921. Sternberg collected the type specimen of '' Pentaceratops fenestratus'', a ceratopsid dinosaur from the late Cretaceous Period, within the WSA. Specimens from this area form a significant part of the vertebrate paleontology collection at the Museum of Evolution, University of Uppsala, Sweden.Sullivan, R.M. 2006. Ah-shi-sle-pah Wilderness Study Area (San ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratopsid
Ceratopsidae (sometimes spelled Ceratopidae) is a family of ceratopsian dinosaurs including ''Triceratops'', ''Centrosaurus'', and ''Styracosaurus''. All known species were quadrupedal herbivores from the Upper Cretaceous. All but one species are known from western North America, which formed the island continent of Laramidia during most of the Late Cretaceous. Ceratopsids are characterized by beaks, rows of shearing teeth in the back of the jaw, elaborate nasal horns, and a thin parietal-squamosal shelf that extends back and up into a frill. The group is divided into two subfamilies—Chasmosaurinae and Centrosaurinae. The chasmosaurines are generally characterized by long, triangular frills and well-developed brow horns. The centrosaurines had well-developed nasal horns or nasal bosses, shorter and more rectangular frills, and elaborate spines on the back of the frill. These horns and frills show remarkable variation and are the principal means by which the various species have b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Đavolja Varoš
Đavolja varoš ( sr-cyr, Ђавоља варош, lit. "Devil's Town") is a rock formation consisting of about 200 earth pyramids or "towers", located in southern Serbia on the Radan Mountain, in the municipality of Kuršumlija. Geology Đavolja Varoš features 202 exotic formations described as earth pyramids or "towers", as the locals refer to them. They are tall and wide at the base. These formations were created by strong erosion of the soil that was scene of intense volcanic activity millions of years ago.Đavolja varoš , National Tourist Organization of Serbia (English) Most of the towers have "caps" or "heads" of , which protect t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demoiselles Coiffées De Pontis
The Demoiselles Coiffées de Pontis is a rock formation in Pontis, near Embrun in the French Alps, located on the edge of the Lac de Serre-Ponçon. The formation consists of a number of hoodoos, described as a "set of narrowly-tapered rock columns....topped with a large rock balanced neatly on the tip." In French, such structures are referred to as ''Demoiselles Coiffées'' ("ladies with hats"). It is one of the best-known and most attractive examples in France of the structure; an earlier commentator referred to them as "some fifty bizarre columns with hairdos." The Tour de France has used the road past the Demoiselles Coiffées de Pontis on the last mountain stage (July 20) of the 2017 tour. See also * Ah-Shi-Sle-Pah Wilderness Study Area * Đavolja Varoš * Bisti/De-Na-Zin Wilderness * Kasha-Katuwe Tent Rocks National Monument * Bryce Canyon National Park * List of rock formations * Hoodoo (geology) A hoodoo (also called a tent rock, fairy chimney, or earth pyramid) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kasha-Katuwe Tent Rocks National Monument
Kasha-Katuwe Tent Rocks National Monument is a U.S. National Monument located approximately southwest of Santa Fe, New Mexico, near Cochiti Pueblo. Managed by the Bureau of Land Management (BLM), it was established as a U.S. National Monument by President Bill Clinton in January 2001. Kasha-Katuwe means "white cliffs" in the Pueblo language Keresan. The monument is a unit of the BLM's National Conservation Lands. Geology Kasha-Katuwe is located on the Pajarito Plateau between 5700 and 6400 feet (1737–1951 m) above sea level. The area owes its remarkable geology to layers of volcanic rock and ash deposited by pyroclastic flow from eruptions within the volcanic field of the Jemez Mountains that occurred 6 to 7 million years ago. These rock layers are assigned to the Peralta Tuff. Many of the layers are light in color, which is the origin of the monument's Keresan name. Over time, weathering and erosion of these layers has created slot canyons and tent rocks. The tent rocks are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from '' shale'' by its lack of fissility (parallel layering).Blatt, H., and R.J. Tracy, 1996, ''Petrology.'' New York, New York, W. H. Freeman, 2nd ed, 529 pp. The term ''mudstone'' is also used to describe carbonate rocks (limestone or dolomite) that are composed predominantly of carbonate mud. However, in most contexts, the term refers to siliciclastic mudstone, composed mostly of silicate minerals. The NASA Curiosity rover has found deposits of mudstone on Mars that contain organic substances such as propane, benzene and toluene. Definition There is not a single definition of mudstone that has gained general acceptance,Boggs 2006, p.143 though there is wide agreement that mudstones are fine-grained sedimentary rocks, composed mostly of silicate grains with a grain size less than . Individual grains this size are too small to be disting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirtland Formation
The Kirtland Formation (originally the Kirtland Shale) is a sedimentary geological formation. Description The Kirtland Formation is the product of alluvial muds and overbank sand deposits from the many channels draining the coastal plain that existed on the inland seashore of North America, in the late Cretaceous period. It overlies the Fruitland Formation. It is found in the San Juan Basin in the states of New Mexico and Colorado, in the United States of America. The base of the Kirtland Formation and its lowest sub-unit, the Hunter Wash member, has been dated to 75.02 ± 0.13 Ma. Together with the upper part of the underlying Fruitland Formation, this contains fossils representing the Hunter Wash local fauna. The border between the Hunter Wash member and overlying Farmington member dates to approximately 74 million years ago. The top of the Farmington member and bottom of the overlying De-na-zin member has been radiometrically dated to 73.83 ± 0.18 Ma ago. The top of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruitland Formation
The Fruitland Formation is a geologic formation found in the San Juan Basin in the states of New Mexico and Colorado, in the United States of America. It contains fossils dating it to the Campanian age of the late Cretaceous.Fruitland Formation at .org The Fruitland Formation shares its name with . That city is on what was the western shore of the |
National Wilderness Preservation System
The National Wilderness Preservation System (NWPS) of the United States protects federally managed wilderness areas designated for preservation in their natural condition. Activity on formally designated wilderness areas is coordinated by the National Wilderness Preservation System. Wilderness areas are managed by four federal land management agencies: the National Park Service, the U.S. Forest Service, the U.S. Fish and Wildlife Service, and the Bureau of Land Management. The term ''wilderness'' is defined as "an area where the earth and community of life are untrammeled by man, where man himself is a visitor who does not remain" and "an area of undeveloped Federal land retaining its primeval character and influence, without permanent improvements or human habitation, which is protected and managed so as to preserve its natural conditions". , 803 wilderness areas have been designated, totaling , which comprise about 4.5% of the land area of the United States. History During ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John D
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope Jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Uppsala
Uppsala University ( sv, Uppsala universitet) is a public research university in Uppsala, Sweden. Founded in 1477, it is the oldest university in Sweden and the Nordic countries still in operation. The university rose to significance during the rise of Sweden as a great power at the end of the 16th century and was then given a relative financial stability with a large donation from King Gustavus Adolphus in the early 17th century. Uppsala also has an important historical place in Swedish national culture, identity and for the Swedish establishment: in historiography, literature, politics, and music. Many aspects of Swedish academic culture in general, such as the white student cap, originated in Uppsala. It shares some peculiarities, such as the student nation system, with Lund University and the University of Helsinki. Uppsala belongs to the Coimbra Group of European universities and to the Guild of European Research-Intensive Universities. It has ranked among the world' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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