Cretaceous Carbonate Platforms

With the large amount of information from Cretaceous basins available for comparative studies in the early 1990s, it seemed appropriate and timely to make available these regional studies on carbonate platforms, aiming at a convenient and objective presentation in a standard format. This volume represents the result of that effort. It brings together 32 well-documented data sets on carbonate platforms from 17 countries, which represent a significant part of the spectrum of Cretaceous carbonate platforms in different geologic provinces and tectonic settings. Two introductory articles summarize some of the main aspects of the Cretaceous period, carbonate platforms, and economic resources, and review each case study. The objectives of this book are to document styles of formation, growth, and development of Cretaceous carbonate platforms and to compare platform geometries, dimensions, and styles of similar platforms but different tectonic-sedimentary settings.
Turonian and Coniacian Carbonate Platforms from the African Tethyan Margin, Algeria, Tunisia Available to Purchase
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Published:January 01, 1993
Abstract
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