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Early Cretaceous Platform Margin, Oman, Eastern Arabian Peninsula

Brian R. Pratt
Brian R. Pratt
Department of Geological Sciences University of Saskatchewan Saskatoon, Saskatchewan, Canada
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John D. Smewing
John D. Smewing
Earth Resources Institute University Innovation Centre Singleton Park, Swansea, U.K.
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January 01, 1993


Name: Arabian platform (eastern margin)

Authors: Brian R. Pratt and John D. Smewing

Location: From 22° to 26° north latitude and 54° to 59° 30' east longitude, northern Oman, eastern Arabian Peninsula

Geologic time interval: Tithoman(?)-Turonian

Tectonic-sedimentary setting: Passive margin (Early Cretaceous) to active margin (middle Cretaceous)

Basin type: Epeiric platform

Paleoclimate: Arid (Late Jurassic) to subhumid (Early Cretaceous)

Platform type: Open shelf to ramp with local faulting and bypass

Platform geometry: Less than 1300 m thick; Oman portion: margin segment is about 200 km long and platform is about 300 km wide

Facies and fossils: Shelf to slope: bioturbated bioclastic packstone, wackestone, and locally argillaceous lime mudstone; oolitic and/or bioclastic grainstone with small patch reefs; bioclastic packstone and argillaceous radiolarian lime mudstone; radiolarian lime mudstone with pelagic biota in Tithonian(?)

Systems tracts: Tidal flat, shallow and deep lagoon, margin shoal, slope; drowned shelf (Tithonian?-Valanginian)

Stacking patterns: Highstand systems tract (Late Jurassic), upwarping (Tithonian?), transgressive surface (Tithonian?), highstand systems tract with initial sigmoid progradation (Valanginian) followed by aggradation (Hauterivian–Aptian), transgressive surface (Albian), highstand systems tract (Albian–Turonian), upwarping (Cenomanian-Turonian), transgressive surface (Coniacian)

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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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