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White Lias
The Lilstock Formation is a geologic formation in England. It preserves bivalve, insect and other invertebrate fossils, as well as fossil fish of '' Agkistracanthus mitgelensis'' and the basal theropod dinosaur '' Newtonsaurus cambrensis'' dating back to the Rhaetian of the Triassic period. White Lias The White lias is a rare, fine-grained form of limestone from the late Triassic period, occurring only in certain parts of Somerset and infrequently in Warwickshire. It gets the name ‘lias’ from the quarrymen's dialect for ‘layers’, referring to its natural state when quarried. White lias is part of the Langport Member of the Lilstock Formation, a multi-layered bed of stone formed from shale and limestone. At its base is a bone-bed yielding ancient marine, reptilian and ammonite fossils. White lias varies in colour from white-cream to pale grey and is traditionally used for building and flooring. Evidence of its use can be seen in manor houses, churches and cathedrals al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (stratigraphy)
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 (geology), 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of '' Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before print. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wincanton
Wincanton ( or ) is a town and electoral ward in Somerset, southwest England. The town lies off the A303 road, a main route between London and South West England, and has some light industry. In the 2021 census the civil parish had a population of 6,568. Etymology The name of Wincanton is first attested in 1084, in the forms ''Wincainietone'' and ''Wincautone''. In the Domesday Book of 1086, the name is spelled ''Wincaleton''. The town's name comes from the name of the River Cale, which runs through the town and was in Old English called ''Wincawel'', combined with the Old English word ''tūn'', "estate, settlement". It thus once meant "estate on the River Cale". The origin of the name of the River Cale itself is less clear. It is first attested in a fourteenth-century copy of a charter from 956, where it appears in the forms ''Cawel'' and ''Wricawel'', the latter of which is agreed to be a scribal error for ''*Wincawel''. The leading suggestion for the origin of this name is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Langport
Langport is a town and Civil parishes in England, civil parish in Somerset, England, west of Somerton, Somerset, Somerton. The parish, which covers only part of the town, has a population of 3,578. Langport is contiguous with Huish Episcopi, a separate parish that includes much of the town's outskirts. History Langport (old forms are "Langeberga" and "Langeport") consists of two parts, one on the hill and one by the River Parrett. The former owed its origin to its defensible position, and the latter its growth to its facilities for trade on the chief river of Somerset. Eilert Ekwall translates it as "long town" or "long market". Its name looks like Old English language, Anglo-Saxon for "long port", but it may be "long market place" that could have been on the causeway that is now Bow Street. Many of the houses in Bow Street tilt backwards due to settlement of the land behind the causeway. It is speculated that Langport is the place mentioned in old Welsh sources as "Llongbort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radstock
Radstock is a town and civil parish on the northern slope of the Mendip Hills in Somerset, England, about south-west of Bath and north-west of Frome. It is within the area of the unitary authority of Bath and North East Somerset. The Radstock built-up area had a population of 9,419 at the 2011 Census. Radstock has been settled since the Iron Age, and its importance grew after the construction of the Fosse Way, a Roman road. The town grew after 1763, when coal was discovered in the area. Large numbers of mines opened during the 19th century, including several owned by the Waldegrave family, who had been Lords of the Manor since the Civil War. Admiral Lord Radstock, brother of George, fourth Earl Waldegrave, took the town's name as his title when created a Baron. The spoil heap of Writhlington colliery is now the Writhlington Site of Special Scientific Interest, which includes 3,000 tons of Upper Carboniferous spoil from which more than 1,400 insect fossil speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midsomer Norton
Midsomer Norton is a town near the Mendip Hills in Bath and North East Somerset, England, south-west of Bath, Somerset, Bath, north-east of Wells, Somerset, Wells, north-west of Frome, west of Trowbridge and south-east of Bristol. It has a population of around 13,000. Along with Radstock and Westfield, Somerset, Westfield it used to be part of the conurbation and large civil parishes in England, civil parish of Norton Radstock, but is now a town council in its own right. It is also part of the unitary authority of Bath and North East Somerset. Midsomer Norton is characterised by the River Somer which runs the length of the town centre. The river itself was regenerated with new plant life during the summer of 2012 in a bid to improve the aesthetics of the town centre. The Town has a long history which can be seen through a number of early churches which remain, but really started to grow and become a transport hub with the development of the Somerset coalfield. For many y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family Nautilidae). The earliest ammonoids appeared during the Emsian stage of the Early Devonian (410.62 million years ago), with the last species vanishing during or soon after the Cretaceous–Paleogene extinction event (66 million years ago). They are often called ammonites, which is most frequently used for members of the order Ammonitida, the only remaining group of ammonoids from the Jurassic up until their extinction. Ammonoids exhibited considerable diversity over their evolutionary history, with over 10,000 species having been described. Ammonoids are excellent index fossils, and they have been frequently used to link rock layers in which a particular species or genus is found to specific Geologic time scale, geologic time periods. Their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers (Lamination (geology), laminae) less than one centimeter in thickness. This property is called ''Fissility (geology), fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the narrower sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warwickshire
Warwickshire (; abbreviated Warks) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It is bordered by Staffordshire and Leicestershire to the north, Northamptonshire to the east, Oxfordshire and Gloucestershire to the south, and Worcestershire and the West Midlands (county), West Midlands county to the west. The largest settlement is Nuneaton and the county town is Warwick. The county is largely rural; it has an area of and a population of 571,010. After Nuneaton (88,813), the largest settlements are Rugby, Warwickshire, Rugby (78,125), Leamington Spa (50,923), Warwick (36,665), Bedworth (31,090) and Stratford-upon-Avon (30,495). For Local government in England, local government purposes, Warwickshire is a non-metropolitan county with five districts. The county Historic counties of England, historically included the city of Coventry and the area to its west, including Royal Town of Sutton Coldfield, Sutton Coldfield ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somerset
Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. The largest settlement is the city of Bath, Somerset, Bath, and the county town is Taunton. Somerset is a predominantly rural county, especially to the south and west, with an area of and a population of 965,424. After Bath (101,557), the largest settlements are Weston-super-Mare (82,418), Taunton (60,479), and Yeovil (49,698). Wells, Somerset, Wells (12,000) is a city, the second-smallest by population in England. For Local government in England, local government purposes the county comprises three Unitary authorities of England, unitary authority areas: Bath and North East Somerset, North Somerset, and Somerset Council, Somerset. Bath and North East Somerset Council is a member of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossilworks
Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was created in 1998 by John Alroy and housed at Macquarie University Macquarie University ( ) is a Public university, public research university in Sydney, New South Wales, Australia. Founded in 1964 by the New South Wales Government, it was the third university to be established in the Sydney metropolitan area. .... It included many analysis and data visualization tools formerly included in the Paleobiology Database.{{cite web, title=Frequently asked questions, url=http://www.fossilworks.org/cgi-bin/bridge.pl?page=FAQ, publisher=Fossilworks, access-date=17 December 2021, archive-date=18 May 2022, archive-url=https://web.archive.org/web/20220518205516/http://www.fossilworks.org/cgi-bin/bridge.pl?page=FAQ, url-status=dead Fossilworks was sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Period (geology)
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardised international units of geological time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precisely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
