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Esquisse géologique de l'Arabie séoudite

Karpoff, Roman

Bulletin de la Société géologique de France, 1957, Vol.7 (6), p.653-697 [Periódico revisado por pares]

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Título:
Esquisse géologique de l'Arabie séoudite
Autor: Karpoff, Roman
Assuntos: Arabian Peninsula ; Asia ; geologic history ; geology ; Miscellaneous and mathematical geology ; Saudi Arabia
É parte de: Bulletin de la Société géologique de France, 1957, Vol.7 (6), p.653-697
Descrição: An outline of the geology of Saudi Arabia. The Precambrian basement consists of two distinct series. The Medina series, the older, includes rocks metamorphosed to different stages (sericite schists, gneisses, and migmatites), with numerous lava flows, particularly in the western part. Various granites and dike rocks intrude the Medina but not the Wadi Fatima series lying discordantly above it. The Wadi Fatima is folded and contains three local stromatolitic zones. The Paleozoic is represented in the north by rocks exhibiting a typical Saharan facies. Marine Muschelkalk (Triassic) beds and Jurassic formations (beginning with Toarcian) cover a large area. The most important Cretaceous transgression occurred in the Maestrichtian, when a gulf extended to the Djeddah region. The grabens of central Arabia appear to be related to the formation of the Red Sea depression during Mio-Pliocene time.
Editor: Société Géologique de France
Idioma: Inglês

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