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Microfacies And Microfabrics Of Maastrichtian Carbonates, Northwestern Oman Mountains, U.A.E.

By
Abdulrahman S. Alsharhan
Abdulrahman S. Alsharhan
Faculty of Science, U.A.E. University, P.O. Box 17551, Al Ain, United Arab Emirates.
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Abdelmohsin Ziko
Abdelmohsin Ziko
Facidty of Science, U.A.E. University, P.O. Box 17551, Al Ain, United Arab Emirates Present address: Faculty of Science, Department of Geology, Zagazig University, Egypt.
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Hisham T. Shebl
Hisham T. Shebl
Faculty of Science, U.A.E. University, P.O. Box 17551, Al Ain, United Arab Emirates Present address: Core Laboratories, P.O. Box: 8503, Abu Dhabi, United Arab Emirates.
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Gregory L. Whittle
Gregory L. Whittle
Faculty of Science, U.A.E. University, P.O. Box 17551, Al Ain, United Arab Emirates Present address: 1201 Elmwood Blvd Park, MS 5112, New Orleans, LA 70123, U.S.A..
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Published:
January 01, 2000

Abstract

The Simsima Formation (lower Upper Maastrichtian) is a shallow–water carbonate that crops out in eastern United Arab Emirates along the northwestern border of the Oman Mountains. Its thickness ranges in this region from 30 to 80 m. From detailed sedimentological and petrographical analysis, various microfabric types and eight sedimentary fades are recognized in the Simsima Formation. These microfacies are arranged according to their frequency and collected into three groups as follows: packstone group (orbitoidal packstone, bioclastic packstone, algal packstone, and plank tonic foraminiferal packstone); boundstone group (milleporid, coral, and algae), and dolostone, which consists mainly of dolomitized limestone. The Simsima Formation in this study can be subdivided into two new members, called here the lower member and the upper member, each with a distinct character and considerable vertical and horizontal distribution.

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SEPM Special Publication

Middle East Models of Jurassic/Cretaceous Carbonate Systems

Abdulrahman S. Alsharhan
Abdulrahman S. Alsharhan
Faculty of Science United Arab Emirates University, P.O. Box 17551, Al Ain, U.A.E.
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;
Robert W. Scott
Robert W. Scott
Precision Stratigraphy Associates, RR3 Box 103-3, Cleveland, OK 74020, U.S.A.
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SEPM Society for Sedimentary Geology
Volume
69
ISBN electronic:
9781565761919
Publication date:
January 01, 2000

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