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Hamrat Duru Group: revised stratigraphy of a Mesozoic deep-water passive margin in the Oman Mountains

Published online by Cambridge University Press:  01 May 2009

D. J. W. Cooper
D. J. W. Cooper
Affiliation:
Department of Geology, University of Leicester, University Road, Leicester, LEI 7RH, U.K.
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Abstract

The stratigraphy of the Hawasina Complex is redefined and rationalized to conform with standard stratigraphical nomenclature. Previously proposed tectono-stratigraphical units are abandoned in favour of a system that relies on the lateral correlation of lithofacies between structural units. To this end, the Dibba, Dhera, Wahrah and Al Ayn Formations are incorporated into an expanded Hamrat Duru Group. This group is divided into five formations, the Zulla, Guweyza Sandstone, Guweyza Limestone, Sid'r and Nayid and spans Triassic to Mid Cretaceous (Cenomanian) time. It locally passes up into the syn-orogenic sediments of the Riyamah Member of the Muti Formation. The nomenclature of the deeper-water, chert-dominated formations is left unaltered.

Type
Articles
Information
Geological Magazine , Volume 124 , Issue 2 , March 1987 , pp. 157 - 164
Copyright
Copyright © Cambridge University Press 1987

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