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Reading Beds
The Reading Formation is a geologic formation in southern England. It dates to the Paleocene period, and is part of the Lambeth Group. It overlies the London Basin and is below the Harwich Formation. The formation is composed of "a series of lenticular mottled clays and sands, here and there with pebbly beds and masses of fine sand converted into quartzite. These beds are generally unfossiliferous." Clay sources During the late medieval era, the Surrey whitewares pottery kilns were located near the Reading Formation, most notably the area between Farnham and Tongham The beds were an excellent source of white-firing clay. See also * List of fossiliferous stratigraphic units in England See also *Lists of fossiliferous stratigraphic units in Europe * Lists of fossiliferous stratigraphic units in the United Kingdom References * {{DEFAULTSORT:Fossiliferous stratigraphic units in England England England is a country ... References Paleogene England {{E ... [...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] |
Chalk Group
The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur across the wider northwest European chalk 'province'. It is characterised by thick deposits of chalk, a soft porous white limestone, deposited in a marine environment. Chalk is a limestone that consists of coccolith biomicrite. A biomicrite is a limestone composed of fossil debris ("bio") and calcium carbonate mud ("micrite"). Most of the fossil debris in chalk consists of the microscopic plates, which are called coccoliths, of microscopic green algae known as coccolithophores. In addition to the coccoliths, the fossil debris includes a variable, but minor, percentage of the fragments of foraminifera, ostracods and mollusks. The coccolithophores lived in the upper part of the water column. When they died, the microscopic calcium carbonate p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tongham
Tongham is a village northeast of the town of Farnham in Surrey, England. The village's buildings occupy most of the west of the civil parish, adjoining the A31 and the A331. The boundaries take in Poyle Park in the east and the replacement to Runfold's manor house in the west. Tongham is located on the north side of the Hog's Back, the narrowest part of the North Downs. The largest independent brewery in Surrey, the Hogs Back Brewery, takes its name from this eminence as does the Hog's Back Hotel. Tongham was the home of the Aldershot Stadium from 1950 to 1992. Aldershot itself is centred to the west. History and economy Archaeological evidence suggests the area of Tongham has been occupied since Neolithic times, particularly close to the Pilgrims' Way which formerly covered in part the top of the Hogs Back, a ridge above the surrounding area, but which is now the North Downs Way on the south side. Notable finds in the parish include two Neolithic arrowheads and Iron Age f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farnham
Farnham ( /ˈfɑːnəm/) is a market town and civil parish in Surrey, England, around southwest of London. It is in the Borough of Waverley, close to the county border with Hampshire. The town is on the north branch of the River Wey, a tributary of the Thames, and is at the western end of the North Downs. The civil parish, which includes the villages of Badshot Lea, Hale and Wrecclesham, covers and had a population of 39,488 in 2011. Among the prehistoric artefacts from the area is a woolly mammoth tusk, excavated in Badshot Lea at the start of the 21st century. The earliest evidence of human activity is from the Neolithic and, during the Roman period, tile making took place close to the town centre. The name "Farnham" is of Saxon origin and is generally agreed to mean "meadow where ferns grow". From at least 803, the settlement was under the control of the Bishops of Winchester and the castle was built as a residence for Bishop Henry de Blois in 1138. Henry VIII is thou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrey Whiteware
Surrey whiteware or Surrey white ware, is a type of lead-glazed pottery produced in Britain from the 13th to the 16th centuries. The white-fired sandy earthenware was produced largely from kilns in Surrey and along the Surrey-Hampshire border. Surrey whitewares were the most commonly used pottery in London during the late medieval period. There are four classes of Surrey whiteware: Kingston-type, Coarse Border ware, Cheam whiteware and Tudor Green ware. History Surrey whitewares were in widespread use in London during the late medieval era. The pottery was produced from a number of kilns in Surrey and along the Surrey-Hampshire border. Three major classifications of Surrey whitewares were identified by archaeologist Clive Orton: Kingston-type ware, Coarse Border ware, and Cheam whiteware. Tudor Green ware is now viewed by scholars as a fourth, minor class. Surrey whitewares were later separated into two classes: the pottery produced in Cheam, known as "Cheam whiteware", and the ... [...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 (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 standardized international units of geologic 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 define ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (geology)
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hampshire Basin
The Hampshire Basin is a geological basin of Palaeogene age in southern England, underlying parts of Hampshire, the Isle of Wight, Dorset, and Sussex. Like the London Basin to the northeast, it is filled with sands and clays of Paleocene and younger ages and it is surrounded by a broken rim of chalk hills of Cretaceous age. Extent The Hampshire Basin is the traditional name for the landward section of a basin underlying the northern English Channel and much of central southern England, known more fully as the Hampshire-Dieppe Basin. It stretches a little over 100 miles (160 km) from the Dorchester area in the west to Beachy Head in the east. Its southern boundary is marked by a monocline, the Purbeck Monocline, resulting in a near-vertical chalk ridge which forms the Purbeck Hills of Dorset, running under the sea from Old Harry Rocks to The Needles and the central spine of the Isle of Wight and continuing under the English Channel as the Wight- Bray monocline. The northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Basin
The London Basin is an elongated, roughly triangular sedimentary basin approximately long which underlies London and a large area of south east England, south eastern East Anglia and the adjacent North Sea. The basin formed as a result of compressional tectonics related to the Alpine orogeny during the Palaeogene period and was mainly active between 40 and 60 million years ago. Boundaries and shape Spatial boundaries The generally accepted boundaries are the Late Cretaceous Chalk Group's escarpments of the Chilterns and Marlborough Downs to the north and the North Downs and Berkshire Downs to the south. To the south lie the Weald and Salisbury Plain and to the north is the Vale of Aylesbury. The approximate western limit is in the Marlborough area of Wiltshire. The eastern end merges with the North Sea Basin, extending on land along the north Kent coast to Reculver and up the east coast of Essex and into Suffolk, where it is overlain by Pleistocene 'Crag' deposits which cover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upnor Formation
The Upnor Formation is a geological formation found in the London Basin of southeastern England.Upnor Formation at .org It is of (Upper ) age. It lies on the |
Paleocene
The Paleocene, ( ) or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name is a combination of the Ancient Greek ''palaiós'' meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history. The K–Pg extinction event, brought on by Chicxulub impact, an asteroid impact and possibly volcanism, marked the beginning of the Paleocene and killed off 75% of living species, most famously the non-avian dinosaurs. The end of the epoch was marked by the Paleocene–Eocene Thermal Maximum (PETM), which was a major climatic event wherein about 2,500–4,500 gigatons of carbon were released into the atmosphere and ocean systems, causing a spike in global temperatures and ocean acidification. In the Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harwich Formation
The Harwich Formation is a geological formation found in the London Basin of southeastern England. It is Ypresian (early Eocene) in age. It lies unconformably on the Lambeth Group over most of its extent, but may overlie either the Thanet Formation or the Chalk Group The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur acr ... to the south. It is overlain by the London Clay Formation. References {{Reflist Geology of London Paleogene England Geologic formations of England ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
