.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important))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 1,494 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 may also add the template ((Translated|fr|Bassin parisien)) to the talk page. For more guidance, see Wikipedia:Translation.
Paris Basin

The Paris Basin (French: Bassin parisien) 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 


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.


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:

And three flowing west, the:


The 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, 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 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

Two 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


  1. ^ 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
  2. ^ 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.