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Barton Beds (now the Barton Group) is the name given to a series of grey and brown clays, with layers of sand, of Upper Eocene age (around 40 million years old), which are found in the Hampshire Basin of southern England. They are particularly well exposed in the cliffs at Barton-on-Sea, which is the type locality for the Barton Beds, and lends its name to the Bartonian age of the Eocene epoch. The clay is abundant in fossils, especially molluscs.

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rdfs:label
  • Barton Beds (en)
  • Barton Beds (it)
  • Barton Beds (fr)
rdfs:comment
  • Barton Beds (now the Barton Group) is the name given to a series of grey and brown clays, with layers of sand, of Upper Eocene age (around 40 million years old), which are found in the Hampshire Basin of southern England. They are particularly well exposed in the cliffs at Barton-on-Sea, which is the type locality for the Barton Beds, and lends its name to the Bartonian age of the Eocene epoch. The clay is abundant in fossils, especially molluscs. (en)
  • Per Barton Beds o Argille di Barton si intende una serie di 14 livelli di argille brune incoerenti, intercalate a livelli di sabbie, di età (Bartoniano). I Barton Beds affiorano nel bacino terziario dell'Hampshire, con esposizioni particolarmente belle sulle scogliere di Barton, Hordwell e dell'Isola di Wight. Quest'area, durante l'Eocene era ricoperta da un mare interno ed il clima era più caldo dell'attuale. Le sabbie, molto pure, sono usate per la produzione del vetro. (it)
  • Barton Beds (aujourd'hui le Barton Group) est le nom donné à un gisement d'argile grise et brune, avec des couches de sable, de l'Éocène supérieur (environ 40 millions d'années, Tertiaire), que l'on trouve dans le bassin du Hampshire, dans le Sud de l'Angleterre. Plus de 500 espèces ont été enregistrées dont plus de la moitié sont des mollusques, comprenant de nombreuses coquilles et lamellibranches. Les requins sont communs et les gisements ont donné des restes de coraux, poissons, mammifères, reptiles et oiseaux. Les fossiles de plantes sont également abondants. (fr)
name
  • Barton Group (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Coastline_east_of_Barton_on_Sea_-_geograph.org.uk_-_1427079.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Diplocynodon_hantoniensis_Nicholson_and_Lydekker.jpg
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  • Barton Clay, Chama Sand, Becton Sand & Belton Sand Formations (en)
underlies
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age
  • Lutetian to Priabonian (en)
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  • Cliffs at Barton-on-Sea (en)
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  • Priabonian (en)
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  • Barton Beds (now the Barton Group) is the name given to a series of grey and brown clays, with layers of sand, of Upper Eocene age (around 40 million years old), which are found in the Hampshire Basin of southern England. They are particularly well exposed in the cliffs at Barton-on-Sea, which is the type locality for the Barton Beds, and lends its name to the Bartonian age of the Eocene epoch. The clay is abundant in fossils, especially molluscs. The beds are found in the Hampshire Basin, and are well exposed in the cliffs of Barton, Hordle, and on the Isle of Wight. The cliffs at Barton are the world type locality for the Barton Beds. The beds consist of grey, greenish and brown clays with bands of sand and have long been well known for the abundance and excellent preservation of their fossils. More than 500 species have been recorded, of which, over half are molluscs, including numerous turret shells and lamellibranchs. Sharks teeth are common, and the beds have yielded remains of corals, fishes, mammals, reptiles, and birds. Plant fossils are also abundant. In the 1840s fossils were found in the "crocodile bed" at Hordle cliff, which belonged to an extinct species of alligator, which was subsequently named Diplocynodon hantoniensis, after the county of Hampshire (Hantonia being a Latinization based on the Anglo-Saxon name Hantescire). Above the highly fossiliferous Barton Clay, there is a sandy series with few fossils; these are the Headon Hill or Barton Sands. Today, the Barton Beds are rather poorly exposed in many sections due to coastal protection works. The Barton Beds are of Upper Eocene age, and the area was covered with an inland sea, and the temperature was higher than at the present day. The term "Bartonian" was introduced by Karl Mayer-Eymar in 1857 for the continental equivalents of the series. (en)
  • Barton Beds (aujourd'hui le Barton Group) est le nom donné à un gisement d'argile grise et brune, avec des couches de sable, de l'Éocène supérieur (environ 40 millions d'années, Tertiaire), que l'on trouve dans le bassin du Hampshire, dans le Sud de l'Angleterre. Les couches sont bien visibles dans les falaises de Barton on Sea, Barton, Hordle et sur l'île de Wight. Les falaises de Barton sont devenues le gisement-type mondial. Les couches se composent d’argile grise, verdâtre et brune avec des bandes de sable et sont bien connues depuis longtemps pour l’abondance et l’excellente préservation de leurs fossiles. Plus de 500 espèces ont été enregistrées dont plus de la moitié sont des mollusques, comprenant de nombreuses coquilles et lamellibranches. Les requins sont communs et les gisements ont donné des restes de coraux, poissons, mammifères, reptiles et oiseaux. Les fossiles de plantes sont également abondants. Dans les années 1840, des fossiles ont été trouvés dans le « crocodile bed », la couche du crocodile dans la falaise de Hordle. Ils appartenaient à une espèce éteinte d'alligator qui a ensuite été appelée Diplocynodon hantoniensis, d'après le comté de Hampshire (Hantonia étant une latinisation basée sur le nom anglo-saxon Hantescire). Au-dessus de l'argile très fossilifère de Barton, se trouve une série sableuse avec peu de fossiles : ce sont les collines Headon Hill ou Barton. Aujourd'hui, les Barton Beds sont assez difficilement accessibles dans de nombreuses sections en raison des travaux de protection du littoral. Les « Barton Beds » sont d'âge Éocène supérieur, la zone était couverte par une mer intérieure et la température était plus élevée qu'aujourd'hui. Le terme "Bartonien" a été introduit par Karl Mayer-Eymar en 1857 pour les équivalents d'Europe continentale correspondant à cette époque. (fr)
  • Per Barton Beds o Argille di Barton si intende una serie di 14 livelli di argille brune incoerenti, intercalate a livelli di sabbie, di età (Bartoniano). I Barton Beds affiorano nel bacino terziario dell'Hampshire, con esposizioni particolarmente belle sulle scogliere di Barton, Hordwell e dell'Isola di Wight. Quest'area, durante l'Eocene era ricoperta da un mare interno ed il clima era più caldo dell'attuale. Al di sopra delle Argille di Barton, con ricco contenuto fossilifero che raggiunge le 600 specie, c'è una serie sabbiosa,molto meno ricca di fossili, detta delle Sabbie di Headon o Sabbie di Barton. Questi nomi sono entrambi preferibili al termine "Upper Bagshot Beds" che è stato a volte usato per queste sabbie. I Barton Beds non si trovano nel bacino di Londra, dove gli Upper Bagshot Beds corrispondono probabilmente ad un orizzonte inferiore rispetto alle Sabbie di Barton. Il termine Bartoniano è stato introdotto da Mayer-Eymar nel 1857 per indicare gli equivalenti continentali della serie suddetta. I fossili più caratteristici sono , , e . Nelle argille di Barton sono stati trovati anche pesci (Lamna, Arius, ecc.) e un coccodrillo. Le sabbie, molto pure, sono usate per la produzione del vetro. (it)
extent
  • Hampshire, Isle of Wight (en)
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