Skip to Main Content
Book Chapter

Regional Unconformities and Depositional Cycles, Cretaceous of the Arabian Peninsula

By
P.M. Harris
P.M. Harris
Gulf Research and Development Company Houston, Texas
Search for other works by this author on:
S.H. Frost
S.H. Frost
Search for other works by this author on:
G.A. Seiglie
G.A. Seiglie
Search for other works by this author on:
N. Schneidermann
N. Schneidermann
Gulf Oil Exploration and Production Company Houston, Texas
Search for other works by this author on:
Published:
January 01, 1984

Abstract

Three regional unconformities are recognized during stratigraphic studies of Cretaceous sedimentary rocks of the Arabian Peninsula. the Cretaceous sequence can be divided into early (Neocomian through early Aptian), middle (late Aptian through early Turonian), and late (Coniacian through Maestrichtian) units by three unconformities of major importance: (1) an unconformity that represents erosion or nondeposition of the middle Aptian section and marks a significant lithological change from shallow shelf limestones of the Shuaiba Formation to overlying shallow shelf elastics of the Nahr Umr Formation; (2) an unconformity that reflects erosion or nondeposition of Turonian strata and is a break between shallow shelf limestones of the Mishrif Formation and overlying deep-water beds of the Fiqa Formation; and (3) an unconformity that separates the Cretaceous and Tertiary formations capping shallow shelf limestones of the Simsima Formation. A regional unconformity at the Jurassic-cretaceous boundary has not been recognized.

The subaerial exposure and erosion represented by each of the three unconformities is of great economic importance due to the development of reservoir-quality secondary porosities in rudist reef-bearing limestones. When the ages of these unconformities and the intervening depositional cycles in the Arabian Peninsula are compared with published eustatic curves, several differences are evident.

You do not currently have access to this article.

Figures & Tables

Contents

AAPG Memoir

Interregional Unconformities and Hydrocarbon Accumulation

John S. Schlee
John S. Schlee
Search for other works by this author on:
American Association of Petroleum Geologists
Volume
36
ISBN electronic:
9781629811581
Publication date:
January 01, 1984

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal