Lyell Collection
Geological Society, London, Special Publications
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bechennec, F.
Right arrow Articles by Villey, M.
Right arrow Search for Related Content
Geological Society, London, Special Publications; 1990; v. 49; p. 213-223;
DOI: 10.1144/GSL.SP.1992.049.01.14
© 1990 Geological Society of London

Evolution of the Oman Tethyan Continental Margin

The Hawasina Nappes: stratigraphy, palaeogeography and structural evolution of a fragment of the south-Tethyan passive continental margin

F. Bechennec1, J. Le Metour1, D. Rabu1, Ch. Bourdillon-de-Grissac1, P. de Wever2, M. Beurrier1 & M. Villey1

1 Service Géologique National, BRGM, BP 6009, 45060 Orléans Cédex, France
2 CNRS UA 319, Université Pierre et Marie Curie, T 15–16, 75252 Paris Cedex 05, France

Lithostratigraphic and biostratigraphic revision of the Hawasina Nappes in the eastern and central Oman Mountains, including the redefinition of the Hamrat Duru Group and the definition of the three new groups, the Al Aridh, Kawr and Umar Groups, has led to a new interpretation of the palaeogeographic and structural evolution of the south-Tethyan continental margin. Margin history began in the Late Permian with a phase of extension and rifting, accompanied by considerable magmatic activity, and led to the development of the Hamrat Duru Basin separating the Arabian Platform to the south from the Baid Platform to the north. In the Middle to Late Triassic renewed extension led to rifting, again accompanied by important magmatic activity, with the break-up of the Baid Platform, and the development of the Al Aridh Trough, the Misfah Horst and the Umar Basin. These Permian and Triassic tectonic units together constituted the Hawasina Basin. A third phase of extension during the Late Tithonian—Berriasian caused a general foundering of the continental margin. The development of the Hawasina Basin terminated in the Santonian, when compression initiated the first stage of obduction that closed the basin. Ongoing obduction, during the Campanian, led to thrusting of the Hawasina and the Samail ophiolite nappes onto the Arabian Platform by gravitational mechanisms.





This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
D. R. Gray and R. T. Gregory
Ophiolite obduction and the Samail Ophiolite: the behaviour of the underlying margin
Geological Society, London, Special Publications, 2003; 218: 449 - 465.
[Abstract] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
M. Wilson, R. Guiraud, C. Moreau, and Y. J.-C. Bellion
Late Permian to Recent magmatic activity on the African-Arabian margin of Tethys
Geological Society, London, Special Publications, 1998; 132: 231 - 263.
[Abstract] [PDF]