Evolutive characteristics of a foreland basin: the case of the Carboniferous basin of Bechear (area south of Oran, Algeria)

The Bechar Basin of Permo-Carboniferous age is situated to the south of the variscan orogenic belt of North Africa. It is a typical foreland basin of great depth: 10,000 m of carboniferous sediments alone. Its present-day shape is triangular; it is markedly dissymmetric and shows the effects of decr...

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Veröffentlicht in:Comptes rendus de l'Académie des sciences. Série 2, Mécanique, physique, chimie, sciences de l'univers, sciences de la terre Mécanique, physique, chimie, sciences de l'univers, sciences de la terre, 1991-01, Vol.313 (5), p.579-586
Hauptverfasser: Kazi-Tani, N, Nedjari, A, Delfaud, J
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Sprache:fre
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Zusammenfassung:The Bechar Basin of Permo-Carboniferous age is situated to the south of the variscan orogenic belt of North Africa. It is a typical foreland basin of great depth: 10,000 m of carboniferous sediments alone. Its present-day shape is triangular; it is markedly dissymmetric and shows the effects of decreasing lithospheric flexure. The sedimentary in fill starts with turtidites and ends with molasses. Flat, south wardmigrating shear-planes are also present.
ISSN:0764-4450