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Turonian and Coniacian Carbonate Platforms from the African Tethyan Margin, Algeria, Tunisia

G. F. Camoin
G. F. Camoin
Centre de Sedimentologie et Paleontologie, U.R.A.-C.N.R.S. Universite de Provence Marseille, France
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January 01, 1993


Name: Bireno and Douleb carbonate platforms

Author. G. F. Camoin

Location: From 33° to 36° north latitude and 4° to 12° east longitude, Algeria, Tunisia, and adjacent offshore areas (Gulf of Gabes)

Geologic time interval: Late Cretaceous, Turonian and Coniacian

Tectonic-sedimentary setting: Passive continental margin

Basin type: Epeiric shelves

Paleoclimate: Generally arid, tropical

Platform types: Rimmed carbonate shelf (Turonian) and carbonate ramp (Coniacian)

Platform geometries: Turonian is 50 to 80 m thick, 50 to 100 km wide, and at least 800 km long; Coniacian is about 100 m thick, approximately 150 km wide, and at least 800 km long

Facies and fossils: Turonian: tidal flats, lagoon, shelf margin, slope, basin; Coniacian: lagoon (locally), shoal and open platform, deep ramp, basin; rudists, corals, red and green algae, and foraminifera

Systems tracts: Turonian: highstand systems tract; Coniacian: transgressive systems tract

Stacking patterns: Turonian: progradational, simple sigmoid parasequences; Coniacian: backstepping profile with a gradual retreat and subsequent drowning

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Figures & Tables


AAPG Memoir

Cretaceous Carbonate Platforms

J. A. Toni Simo
J. A. Toni Simo
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Robert W. Scott
Robert W. Scott
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Jean-Pierre Masse
Jean-Pierre Masse
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American Association of Petroleum Geologists
ISBN electronic:
Publication date:
January 01, 1993




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