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Cuffley Brook
Cuffley Brook is a tributary of Turkey Brook. It runs through parts of Hertfordshire and the London Borough of Enfield, England. After the confluence of the two streams in Whitewebbs Park, the watercourse continues eastwards as Turkey Brook to join the River Lea near Enfield Lock. Course Cuffley Brook is one of the longest tributaries of the River Lea, snaking for several miles through the south-east Hertfordshire hills. It rises in Northaw Great Wood, north west of Cuffley, and is joined there by Grimes Brook. Northaw Brook and Hempshill Brook join Cuffley Brook south of Cuffley, close to Soper's Viaduct (on the Hertford Loop railway line). The stream then goes under the M25 motorway, passes close to Crews Hill, and enters Whitewebbs Wood. There, it goes under the Flash Lane Aqueduct (on a former course of the New River), before reaching a confluence with Turkey Brook, in the London Borough of Enfield, at the north-west foot of Forty Hill. Geology The oldest ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuffley Brook, Northaw Great Wood - Geograph
Cuffley is a village in the civil parish of Northaw and Cuffley, in the Welwyn Hatfield district of south-east Hertfordshire located between Cheshunt and Potters Bar. It has a population of just over 4,000 people. and is part of Broxbourne (UK Parliament constituency), Broxbourne parliamentary constituency. History The railway had an important impact on the development of the village. Cuffley was reached by the Great Northern Railway (Great Britain), Great Northern Railway in 1910, as part of the plan to create the Hertford Loop Line, as a strategic alternative to the main line out of London King's Cross railway station, King's Cross to the north, by extending the line from Enfield Chase railway station, Enfield Chase. The early history of Cuffley is recounted by one of its residents, Mary Vivian Hughes, Molly Hughes, in her autobiographical book ''A London Family Between the Wars.'' On 3 September 1916 the German airship Schütte-Lanz SL 11, SL 11 was shot down and crashed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Thames
The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, second-longest in the United Kingdom, after the River Severn. The river rises at Thames Head in Gloucestershire, and flows into the North Sea near Tilbury, Essex and Gravesend, Kent, via the Thames Estuary. From the west it flows through Oxford (where it is sometimes called the Isis), Reading, Berkshire, Reading, Henley-on-Thames and Windsor, Berkshire, Windsor. The Thames also drains the whole of Greater London. In August 2022, the source of the river moved five miles to beyond Somerford Keynes due to the heatwave in July 2022. The lower reaches of the river are called the Tideway, derived from its long tidal reach up to Teddington Lock. Its tidal section includes most of its London stretch and has a rise and fall of . From Oxford to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chingford
Chingford is a town in east London, England, within the London Borough of Waltham Forest. The town is approximately north-east of Charing Cross, with Waltham Abbey to the north, Woodford Green and Buckhurst Hill to the east, Walthamstow to the south, and Edmonton and Enfield to the west. It contains the areas of Chingford Green, Chingford Hatch, Chingford Mount, Friday Hill, Hale End, Highams Park, and South Chingford, and had a population of 70,583 at the 2021 census. Prior to becoming part of the ceremonial county of Greater London in 1965, Chingford was in the historic county of Essex, where it was a civil parish, urban district and municipal borough, and historically formed an ancient parish in the Waltham hundred. Similar to much of south-west Essex, the town expanded significantly in the late 19th century, forming part of the conurbation of London. It was included in the Metropolitan Police District in 1840 and became part of London's postal district upon its incepti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finchley
Finchley () is a large district of north London, England, in the London Borough of Barnet. Finchley is on high ground, north of Charing Cross. Nearby districts include: Golders Green, Muswell Hill, Friern Barnet, Whetstone, Mill Hill and Hendon. It is predominantly a residential suburb, with three town centres: North Finchley, East Finchley and Finchley Church End (Finchley Central). Made up of four wards, the population of Finchley counted 65,812 as of 2011. History Finchley probably means "Finch's clearing" or "finches' clearing" in late Anglo-Saxon; the name was first recorded in the early 13th century. Finchley is not recorded in Domesday Book, but by the 11th century its lands were held by the Bishop of London. In the early medieval period the area was sparsely populated woodland, whose inhabitants supplied pigs and fuel to London. Extensive cultivation began about the time of the Norman conquest. By the 15th and 16th centuries the woods on the eastern side of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watford
Watford () is a town and borough in Hertfordshire, England, 15 miles northwest of Central London, on the River Colne. Initially a small market town, the Grand Junction Canal encouraged the construction of paper-making mills, print works, and breweries. While industry has declined in Watford, its location near London and transport links has attracted several companies to site their headquarters in the town. Cassiobury Park is a public park that was once the manor estate of the Earls of Essex. The town developed next to the River Colne on land belonging to St Albans Abbey. In the 12th century, a charter was granted allowing a market, and the building of St Mary's Church began. The town grew partly due to travellers going to Berkhamsted Castle and the royal palace at Kings Langley. A mansion was built at Cassiobury in the 16th century. This was partly rebuilt in the 17th century and another country house was built at The Grove. The Grand Junction Canal in 1798 and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglian Stage
The Anglian Stage is the name used in the British Isles for a middle Pleistocene glaciation. It precedes the Hoxnian Stage and follows the Cromerian Stage in the British Isles. The Anglian Stage is correlated to Marine Isotope Stage 12 (MIS 12), which started about 478,000 years ago and ended about 424,000 years ago. Lisiecki, L.E. (2005Ages of MIS boundaries. Boston MA:Boston University Description The Anglian stage has often been correlated to the Elsterian Stage of northern Continental Europe and the in the |
Alluvium
Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is typically geologically young and is not consolidated into solid rock. Sediments deposited underwater, in seas, estuaries, lakes, or ponds, are not described as alluvium. Floodplain alluvium can be highly fertile, and supported some of the earliest human civilizations. Definitions The present consensus is that "alluvium" refers to loose sediments of all types deposited by running water in floodplains or in alluvial fans or related landforms. However, the meaning of the term has varied considerably since it was first defined in the French dictionary of Antoine Furetière, posthumously published in 1690. Drawing upon concepts from Roman law, Furetière defined ''alluvion'' (the F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Till
image:Geschiebemergel.JPG, Closeup of glacial till. Note that the larger grains (pebbles and gravel) in the till are completely surrounded by the matrix of finer material (silt and sand), and this characteristic, known as ''matrix support'', is diagnostic of till. image:Glacial till exposed in roadcut-750px.jpg, Glacial till with tufts of grass Till or glacial till is unsorted glacier, glacial sediment. Till is derived from the erosion and entrainment of material by the moving ice of a glacier. It is deposited some distance down-ice to form terminal, lateral, medial and ground moraines. Till is classified into primary deposits, laid down directly by glaciers, and secondary deposits, reworked by fluvial transport and other processes. Description Till is a form of '' glacial drift'', which is rock material transported by a glacier and deposited directly from the ice or from running water emerging from the ice. It is distinguished from other forms of drift in that it is depos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Clay
The London Clay Formation is a marine geological formation of Ypresian (early Eocene Epoch, c. 56–49 million years ago) age which crops out in the southeast of England. The London Clay is well known for its fossil content. The fossils from the lower Eocene rocks indicate a moderately warm climate, the tropical or subtropical flora. Though sea levels changed during the deposition of the clay, the habitat was generally a lush forest – perhaps like in Indonesia or East Africa today – bordering a warm, shallow ocean. The London Clay is a stiff bluish clay which becomes brown when weathered and oxidized. Nodular lumps of pyrite are frequently found in the clay layers. Pyrite was produced by microbial activity (sulfate reducing bacteria) during clay sedimentation. Once clay is exposed to atmospheric oxygen, framboidal pyrite with a great specific surface is rapidly oxidized. Pyrite oxidation produces insoluble brown iron oxyhydroxide (FeOOH) and sulfuric acid leading to the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope Carbon-13, 13C in the atmosphere was exceptionally low in comparison with the more common isotope Carbon-12, 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Popigai impact structure, Siberia and in what is now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
