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The region usually regarded as the Paris Basin is rather smaller than the area formed by the geological structure. The former occupies the centre of the northern half of the country, excluding Eastern France. The latter extends from the hills just south of Calais to Poitiers and from Caen to the brink of the middle Rhine Valley, east of Saarbrücken.
Geographyedit
The landscape is one of very broad valleys (flood plains), modest watershed hills and well-drained plateaux of comparatively little altitude. In the south-east and east the plain of Champagne and the Seuil de Bourgogne (Threshold of Burgundy) differential erosion of the strata has left low scarps with the dip slopes towards the centre. The varying nature of the clays, limestones and chalk gives rise to the characteristics of the regions such as Champagne Humide (Damp Champagne), Champagne Pouilleuse (poor Champagne),[2] the Pays de Caux and the Pays de Bray.
Due to the millions of years of later deposition, erosion and other changes since, five drainage basins today drain almost all of the Basin.
These are two flowing north, the basins/specified parts of basins as follows:
It forms a broad shallow bowl in which marine deposits from throughout periods from the Triassic to the Pliocene were laid down. Their extent generally decreases with time. Based on analysis of fossils recognized in the basin's strata during the 1820s and 1830s, the pioneering geologist Charles Lyell divided the Tertiary into three ages he named the Pliocene, the Miocene and the Eocene.
To the west, the strata folded by the Variscan rise below the more recent marine deposits in the hills of Brittany and, to the east, the Ardennes, Hunsrück and Vosges. To the south, the basin borders on the Massif Central and the Morvan. To the north, its early strata match those of the bed of the English Channel and south-eastern England. Other boundaries lie on ridges in more recent deposits and scarps (escarpments). These include the Côte d'Or in the south-east (on an Alpinefault line) and, at a north end, the Hills of (French: Collines d') Artois which overlie the margin of London-Brabant Massif.
Oil fieldsedit
Two notable oil fields are the Chaunoy Field, the other is the Villeperdue Field. They are centred at about 1850 metre depth.[1]: 251
^ abDuval, B.C., 1992, Villeperdue Field, In Giant Oil and Gas Fields of the Decade, 1978-1988, AAPG Memoir 54, Halbouty, M.T., editor, Tulsa: American Association of Petroleum Geologists, ISBN0891813330
^Pouilleuse means 'lousy' that is, 'infested with lice' but its meaning has broadened in use to include 'down and out'. This is a region of thin, chalk soils and little surface water. The epithet indicates the extreme poverty of the region when the name was acquired.
Sourcesedit
Anon. Carte Géologique de la France à l'Échelle du MillionièmeISBN2-7159-2158-6
Dercourt, J. (2002). Géologie et Géodynamique de la France (3rd ed.). ISBN2-10-006459-2.
February 16, 2024
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You can help expand this article with text translated from the corresponding article in French July 2016 Click show for important translation instructions View a machine translated version of the French article Machine translation like DeepL or Google Translate is a useful starting point for translations but translators must revise errors as necessary and confirm that the translation is accurate rather than simply copy pasting machine translated text into the English Wikipedia Consider adding a topic to this template there are already 6 008 articles in the main category and specifying topic will aid in categorization Do not translate text that appears unreliable or low quality If possible verify the text with references provided in the foreign language article You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at fr Bassin parisien see its history for attribution You should also add the template Translated fr Bassin parisien to the talk page For more guidance see Wikipedia Translation The Paris Basin is one of the major geological regions of France It developed since the Triassic over remnant uplands of the Variscan orogeny Hercynian orogeny The sedimentary basin no longer a single drainage basin is a large sag in the craton bordered by the Armorican Massif to the west the Ardennes Brabant axis to the north the Massif des Vosges to the east and the Massif Central to the south 1 252 Paris Basin Bassin parisien Contents 1 Extent 2 Geography 3 Structure 4 Oil fields 5 See also 6 References 7 SourcesExtent editThe region usually regarded as the Paris Basin is rather smaller than the area formed by the geological structure The former occupies the centre of the northern half of the country excluding Eastern France The latter extends from the hills just south of Calais to Poitiers and from Caen to the brink of the middle Rhine Valley east of Saarbrucken Geography editThe landscape is one of very broad valleys flood plains modest watershed hills and well drained plateaux of comparatively little altitude In the south east and east the plain of Champagne and the Seuil de Bourgogne Threshold of Burgundy differential erosion of the strata has left low scarps with the dip slopes towards the centre The varying nature of the clays limestones and chalk gives rise to the characteristics of the regions such as Champagne Humide Damp Champagne Champagne Pouilleuse poor Champagne 2 the Pays de Caux and the Pays de Bray Due to the millions of years of later deposition erosion and other changes since five drainage basins today drain almost all of the Basin These are two flowing north the basins specified parts of basins as follows upper Moselle and upper MeuseAnd three flowing west the Seine basin central Loire basin and Somme Structure editThe Paris Basin is a geological basin of sedimentary rocks It overlies geological strata folded by the Variscan orogeny It forms a broad shallow bowl in which marine deposits from throughout periods from the Triassic to the Pliocene were laid down Their extent generally decreases with time Based on analysis of fossils recognized in the basin s strata during the 1820s and 1830s the pioneering geologist Charles Lyell divided the Tertiary into three ages he named the Pliocene the Miocene and the Eocene To the west the strata folded by the Variscan rise below the more recent marine deposits in the hills of Brittany and to the east the Ardennes Hunsruck and Vosges To the south the basin borders on the Massif Central and the Morvan To the north its early strata match those of the bed of the English Channel and south eastern England Other boundaries lie on ridges in more recent deposits and scarps escarpments These include the Cote d Or in the south east on an Alpine fault line and at a north end the Hills of French Collines d Artois which overlie the margin of London Brabant Massif Oil fields editTwo notable oil fields are the Chaunoy Field the other is the Villeperdue Field They are centred at about 1850 metre depth 1 251 See also editGeologic time scale List of fossil sites with link directory References edit a b Duval B C 1992 Villeperdue Field In Giant Oil and Gas Fields of the Decade 1978 1988 AAPG Memoir 54 Halbouty M T editor Tulsa American Association of Petroleum Geologists ISBN 0891813330 Pouilleuse means lousy that is infested with lice but its meaning has broadened in use to include down and out This is a region of thin chalk soils and little surface water The epithet indicates the extreme poverty of the region when the name was acquired Sources editAnon Carte Geologique de la France a l Echelle du Millionieme ISBN 2 7159 2158 6 Dercourt J 2002 Geologie et Geodynamique de la France 3rd ed ISBN 2 10 006459 2 Retrieved from https en wikipedia org w index php title Paris Basin amp oldid 1197983564, wikipedia, wiki, book, books, library,
