Glen Rose Formation
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Glen Rose Formation
The Glen Rose Formation is a shallow marine to shoreline geological formation from the lower Cretaceous period exposed over a large area from South Central to North Central Texas. The formation is most widely known for the dinosaur footprints and trackways found in the Dinosaur Valley State Park near the town of Glen Rose, Texas, southwest of Fort Worth and at other localities in Central Texas. Geology The Glen Rose is the uppermost, thickest and most extensively exposed formation of the Trinity Group, a series of shallow-water marine formations deposited on a southeastward flank of the Llano Uplift, through a number of sea regressions and transgressions. Wells drilled in eastern Travis County have encountered over 1,000 feet of the Glen Rose. In the northern part, the Glen Rose is laterally continuous with the Paluxy Formation. The Glen Rose overlies the Hensel Sand and is overlain in turn by formations of the Fredericksburg division. In 1974, Keith Young concluded, b ...
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Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob Wer ...
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Llano Uplift
The Llano Uplift is a geologically ancient, low geologic dome that is about in diameter and located mostly in Llano, Mason, San Saba, Gillespie, and Blanco counties, Texas. It consists of an island-like exposure of Precambrian igneous and metamorphic rocks surrounded by outcrops of Paleozoic and Cretaceous sedimentary strata. At their widest, the exposed Precambrian rocks extend about westward from the valley of the Colorado River and beneath a broad, gentle topographic basin drained by the Llano River. The subdued topographic basin is underlain by Precambrian rocks and bordered by a discontinuous rim of flat-topped hills. These hills are the dissected edge of the Edwards Plateau, which consist of overlying Cretaceous sedimentary strata. Within this basin and along its margin are down-faulted blocks and erosional remnants of Paleozoic strata which form prominent hills.Barnes, V.E., Bell, W.C., Clabaugh, S.E., Cloud, P.E., Jr., Young, K., and McGehee, R.V., 1962. ''Field E ...
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Type Locality (geology)
Type locality, also called type area, is the locality where a particular rock type, stratigraphic unit or mineral species is first identified. If the stratigraphic unit in a locality is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality. The term is similar to the term type site in archaeology or the term type specimen in biology. Examples of geological type localities Rocks and minerals * Aragonite: Molina de Aragón, Guadalajara, Spain * Autunite: Autun, France * Benmoreite: Ben More (Mull), Scotland * Blairmorite: Blairmore, Alberta, Canada * Boninite: Bonin Islands, Japan * Comendite: Comende, San Pietro Island, Sardinia * Cummingtonite: Cummington, Massachusetts * Dunite: Dun Mountain, New Zealand. * Essexite: Essex County, Massachusetts, US * Fayalite: Horta, Fayal Island, Azores, Portugal * Harzburgite: Bad Harzburg, Germany * Icelandite: Thingmuli (Þingmúli), Iceland * Ijolite: Iivaara, Kuusamo, Finl ...
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Whitney
Whitney may refer to: Film and television * ''Whitney'' (2015 film), a Whitney Houston biopic starring Yaya DaCosta * ''Whitney'' (2018 film), a documentary about Whitney Houston * ''Whitney'' (TV series), an American sitcom that premiered in 2011 Firearms *Whitney Wolverine, a semi-automatic, .22 LR caliber pistol *Whitney revolver, a gun carried by Powell when he attempted to assassinate Secretary of State William Seward Music * Whitney Houston, sometimes eponymously known as 'Whitney' ** ''Whitney'' (album), an album by Whitney Houston * Whitney (band), an American rock band Places Canada * Whitney, Ontario United Kingdom * Witney, Oxfordshire ** Witney (UK Parliament constituency), a constituency for the House of Commons * Whitney-on-Wye, Herefordshire United States * Whitney, Alabama * Whitney, California, a community in Placer County * Whitney, California, former name of Lone Pine Station, California * Whitney, Idaho * Whitney, Maine * Whitney, Michigan * Whit ...
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Corbula
''Corbula'' is a genus of very small saltwater clams, marine bivalve molluscs in the family Corbulidae, the basket clams.Gofas, S. (2010). Corbula Bruguière, 1797. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137841 on 2010-11-23 Species Species within the genus ''Corbula'' include: * '' Corbula aequivalvis'' Philippi, 1836 * '' Corbula albuginosa'' Hinds, 1843 * '' Corbula amethystina'' (Olsson, 1961) * '' Corbula arcaeformis'' Lynge, 1909 * '' Corbula barrattiana'' C. B. Adams, 1852 * '' Corbula bicarinata'' (Sowerby, 1833) * ''Corbula biradiata'' (Sowerby, 1833) * '' Corbula cadenati'' (Nicklès, 1955) * ''Corbula chittyana'' C. B. Adams, 1852 * '' Corbula colimensis'' Coan, 2002 * ''Corbula contracta'' Say, 1822 * '' Corbula crispa'' Reeve, 1844 * ''Corbula cymella'' Dall, 1881 * ''Corbula dautzenbergi'' Lamy, 1941 * ''Corbul ...
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Nagle 1968b
Nagle is a surname. Notable people with this surname include: * Angela Nagle (born 1971), Irish non-fiction writer and academic * Browning Nagle (born 1968), American football quarterback * Courtney Nagle (born 1982) American tennis player * David R. Nagle (born 1943), member of the US House of Representatives * Don Nagle (1938–1999), American karate grand master * Florence Nagle (1894–1988), British feminist, racehorse trainer and dog breeder * Gary Nagle (born 1974/1975), South African business executive, CEO-designate of Glencore * Jack Nagle (1917–1991), American college basketball coach * Jacob Nagle (1761–1841), British sailor * James Nagle (other), various people * John Nagle, author of RFC896, see Nagle's algorithm * John Nagle (1913–2009), Australian lawyer, soldier and jurist * Kel Nagle (1920–2015), Australian golfer * Leda Nagle (born 1951), Brazilian journalist and TV presenter * Margaret Nagle (born 1969), screenwriter and TV producer * Mary ...
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Nagle 1968a
Nagle is a surname. Notable people with this surname include: * Angela Nagle (born 1971), Irish non-fiction writer and academic * Browning Nagle (born 1968), American football quarterback * Courtney Nagle (born 1982) American tennis player * David R. Nagle (born 1943), member of the US House of Representatives * Don Nagle (1938–1999), American karate grand master * Florence Nagle (1894–1988), British feminist, racehorse trainer and dog breeder * Gary Nagle (born 1974/1975), South African business executive, CEO-designate of Glencore * Jack Nagle (1917–1991), American college basketball coach * Jacob Nagle (1761–1841), British sailor * James Nagle (other), various people * John Nagle, author of RFC896, see Nagle's algorithm * John Nagle (1913–2009), Australian lawyer, soldier and jurist * Kel Nagle (1920–2015), Australian golfer * Leda Nagle (born 1951), Brazilian journalist and TV presenter * Margaret Nagle (born 1969), screenwriter and TV producer * Mary ...
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Young
Young may refer to: * Offspring, the product of reproduction of a new organism produced by one or more parents * Youth, the time of life when one is young, often meaning the time between childhood and adulthood Music * The Young, an American rock band * ''Young'', an EP by Charlotte Lawrence, 2018 Songs * "Young" (Baekhyun and Loco song), 2018 * "Young" (The Chainsmokers song), 2017 * "Young" (Hollywood Undead song), 2009 * "Young" (Kenny Chesney song), 2002 * "Young" (Place on Earth song), 2018 * "Young" (Tulisa song), 2012 * "Young", by Ella Henderson, 2019 * "Young", by Lil Wayne from '' Dedication 6'', 2017 * "Young", by Nickel Creek from ''This Side'', 2002 * "Young", by Sam Smith from ''Love Goes'', 2020 * "Young", by Silkworm from ''Italian Platinum'', 2002 * "Young", by Vallis Alps, 2015 * "Young", by Pixey, 2016 People Surname * Young (surname) Given name * Young (Korean name), Korean unisex given name and name element * Young Boozer (born 1948), American banker ...
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Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), approximately. The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early Cretaceous. The Aptian partly overlaps the upper part of the Western European Urgonian Stage. The Selli Event, also known as OAE1a, was one of two oceanic anoxic events in the Cretaceous Period, which occurred around 120 Ma and lasted approximately 1 to 1.3 million years. The Aptian extinction was a minor extinction event hypothesized to have occurred around 116 to 117 Ma.Archangelsky, Sergio.The Ticó Flora (Patagonia) and the Aptian Extinction Event" ''Acta Paleobotanica'' 41(2), 2001, pp. 115-22. Stratigraphic definitions The Aptian was named after the small city of Apt in the Provence region of France, which is also known for its cry ...
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Fredericksburg Division
Fredericksburg may refer to: Places United States *Fredericksburg, California *Fredericksburg, Indiana *Fredericksburg, Iowa *Fredericksburg, Missouri *Fredericksburg, Ohio, a village in Wayne County *Fredericksburg, Mahoning County, Ohio, an unincorporated community *Fredericksburg, Pennsylvania (other), various places *Fredericksburg, Texas *Fredericksburg, Virginia, a historic city in north central Virginia **Battle of Fredericksburg, a major battle of the American Civil War which took place there **Second Battle of Fredericksburg, another battle of the American Civil War that took place there Canada *Fredericksburg, Ontario, the former name for Delhi, Ontario Ships * , several ships * CSS ''Fredericksburg'', an ironclad of the Confederate States Navy during the American Civil War See also *Frederiksberg Frederiksberg () is a part of the Capital Region of Denmark. It is formally an independent municipality, Frederiksberg Municipality, separate from Copenhagen ...
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Hensel Sand
The Hensel Formation or Hensel Sand is a Mesozoic geologic formation in Texas. Fossil ornithopod tracks have been reported from the formation.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607. A stratigraphic column at the Mount Bonnell Fault location starts with the Lower Cretaceous Trinity Group overlain by the Edwards Group. Upper Cretaceous formations follow, starting with the Del Rio Clay, Buda Limestone, and then the Eagle Ford Group. Formations within the Trinity Group include the Hammett Formation, Cow Creek Formation, Hensel Formation, and Lower and Upper Glen Rose Formation. The Hammett and the lower portion of the Upper Glen Rose act as confining units (or aquitard) for the Middle Trinity Aquifer. See also * List of dinosaur-bearing rock formations ** List of stratigraphic units with ornithischian tracks *** Ornithopod tracks * List of fossiliferous stratigraphic units in Texas * Paleontology in Texas Paleontology in Texas refers to paleontological ...
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