Paris Basin


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Paris Basin

 

(Northern French Lowland), a hilly plain in northern France, occupying about one-fourth of the country’s territory.

The surface of the Paris Basin rises gradually from the center (near Paris) toward the uplifted areas that surround the plain on the east, south, and west—the Ardennes, the Vosges, the Massif Central, and the Armorican Massif. On the periphery of the Paris Basin is a series of arched, elongated cuesta ridges with steep outer slopes and gentle inner slopes. The elevation of the central part of the basin is about 100 m, and the largest ridges rise to 500 m (primarily in the east and southeast, in Lorraine and Champagne).

The Paris Basin is a trough of a Paleozoic folded base, filled primarily with Jurassic and Cretaceous limestones, marls, chalk, and clays and Paleogenic and Neogenic sandstones, sand, clays, and thin limestone strata, which are bedded at a very gentle angle. In the center of the basin the depth of the limestone bed is 1,530 m. Petroleum and gas deposits have been discovered.

The Paris Basin is drained by a dense network of rivers, most of which belong to the Seine River basin. The rivers are deep and full. In many places the rivers meander, but the valleys usually narrow sharply where they cut through the cuesta ridges.

The basin has a moderate marine climate. The average July temperature is about 18°C, and the average January temperature, about 3°C. Precipitation ranges from 500 to 700 mm a year. The Paris Basin is the chief industrial and agricultural region of France. There are small but numerous groves of oak, linden, beech, and pine, chiefly on the cuesta ridges. The city of Paris is situated in the basin.

R. A. ERAMOV

References in periodicals archive ?
Hydrocarbon production in mainland France takes place mostly in the Paris Basin and Aquitaine Basin, where Vermilion Energy operates several permits.
Near the West Tethyan region, in the Atlantic area, the marine fauna of the middle Eocene of the Paris Basin showed an extraordinary biodiversity during Lutetian times and can be regarded as an extension of the West Tethyan hotspot (Merle, 2008; Merle et al, 2008; Huyghe et al.
The benthic assemblage shows distinct affinities with the Lutetian fauna of Hampshire basin and Paris basin Murray[1] Gulf coastal region Cushman [2] Belgium Kasschister[3] and Kutch of IndiaSamanta [4].
Under the current system, industrial-scale grain producers in France's Paris basin disproportionately benefit from receiving payments, as their outputs were among the highest in Europe between 2000 and 20002.
Energy Information Administration (EIA) estimates shale gas reserves worth five trillion cubic meters could lie in French soil, mainly in the Paris basin and the Rhone valley - equivalent to 90 years of current French gas consumption.
The present system disproportionately benefits those who in the years 2000-2002 had the largest output, for example industrial-scale grain producers in France's Paris basin.
Half of the net proceeds will be used to pay down a substantial part of its remaining senior secured notes and under the Paris Basin Purchase and Sale Agreement with Hess in July 2012, USD15.
ZEF has 100% working interests in the Saint Firmin, Chateaurenard, Courtenay, Chuelles and Charmottes fields in the Paris basin.
This stretch of land begins in the London area (arguably the most affluent), takes in the Paris basin and continues north-eastwards to Brussels, then to the commercial centres of the Netherlands and thence to the prime financial/industrial regions of Germany such as Cologne, Frankfurt and Hamburg.
The geological characteristics of these oil-rich, naturally fractured, thermally mature formations compare favorably to fractured shale formations such as the Bakken Shale in the Williston Basin and Liassic Shale in the Paris Basin.
In a first for France, two companies have teamed up to produce shale oil from the Paris basin through a difficult and costly extraction process that involves blasting the rock with water and chemicals.