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Book Chapter

Late Cretaceous to Cenozoic tectonic evolution of the NW Arabian platform in NW Syria

By
Abdelkarim Al Abdalla
Abdelkarim Al Abdalla
1
Department of Geology
,
Techrine University, Lattakia
,
Syria
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;
Eric Barrier
Eric Barrier
2
ISTEP, Université P & M Curie, UMR 7193 CNRS
,
4 place Jussieu, 75252 Paris cedex 05
,
France
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;
Anis Matar
Anis Matar
3
Department of Geology
,
Aleppo University, Aleppo
,
Syria
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;
Carla Muller
Carla Muller
4
6 bis Rue Haute, 92500 Reuil-Malmaison
,
France
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Published:
January 01, 2010

Abstract

We associate a brittle tectonic analysis and a stratigraphic study of the NW Arabian platform in Syria in the northern Coastal Range, Lattakia basin, and Baer-Bassit areas. These complementary approaches allowed characterizing the tectonic and palaeostress evolutions of this region since the Late Cretaceous. In Mesozoic and Palaeogene, before the Arabia–Eurasia collision, essentially developed extensional tectonics. A major extensional phase, characterized by a NE–SW directed extension, was recognized during the Senonian. It is associated with the activity of the Euphrates graben. The Eocene–Oligocene period is marked by a north–south directed extension associated with minor east–west trending normal faults, associated with syn-depositional structures. The compressional deformation initiated at the end of Oligocene north of Baer-Bassit. The major phase of shortening is Early Miocene in age in NW Syria. The related brittle structures and folding were resulted from a 110°–135° oriented compression. During this event, the Baer-Bassit is thrusted over the Coastal Range platform along the SE vergent Lattakia thrust. This major thrusting induced the flexure of the Arabian platform and the formation of the Middle to Late Miocene Lattakia basin. From the end of the Miocene, and until Present, the region experienced a NNW–SSE directed regional compression. We also evidenced an east–west trending compression near the Dead Sea Fault (DSF) area, coeval with the NNW–SSE one, associated with the north–south folding of the Coastal Range. It likely corresponds to a stress-field deflection in relationship with the DSF activity. From latermost Miocene to Present, the left-lateral displacement along the northern segment of the DSF can be estimated to 30–40 km, from the offset of the Early Miocene deformation front.

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Contents

Geological Society, London, Special Publications

Evolution of the Levant Margin and Western Arabia Platform since the Mesozoic

C. Homberg
C. Homberg
University Pierre et Marie Curie, France
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;
M. Bachmann
M. Bachmann
University of Bremen, Germany
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Geological Society of London
Volume
341
ISBN electronic:
9781862395893
Publication date:
January 01, 2010

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