Structural setting and tectonic evolution of offshore North Sinai, Egypt
Published:January 01, 2010
M. Yousef, A. R. Moustafa, M. Shann, 2010. "Structural setting and tectonic evolution of offshore North Sinai, Egypt", Evolution of the Levant Margin and Western Arabia Platform since the Mesozoic, C. Homberg, M. Bachmann
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The offshore area of North Sinai represents the northern extension of the Syrian Arc inversion structures into the southeastern Mediterranean region. Integration of detailed seismic interpretation of key tectonic events in offshore North Sinai and recently acquired gravity and magnetic data reveal structural deformation represented by large buried inversion anticlines that have played an important role in the geological history and hydrocarbon potential of the area. This tectonic inversion took place in the Late Mesozoic and continued slightly during the Cenozoic, and formed NE-trending asymmetrical folds. Three different phases of deformation have been detected in offshore North Sinai: (1) A Jurassic–Early Cretaceous extensional phase, which formed NE trending normal faults bounding asymmetrical half-grabens, (2) Post-Santonian–Middle Miocene positive inversion of these faults and half-grabens and (3) Post–Middle Miocene subsidence. A set of tectonosequences related to the opening and the subsequent convergence of the Tethys was mapped. Each identified tectonosequence has its own unique drive mechanism, geometry, and location with respect to the plate boundary. Recognition of these elements allows illustration of the Tethyan basin evolution of offshore North Sinai through time as well as understanding the tectonic and stratigraphic framework and effective prediction of the petroleum system.
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Evolution of the Levant Margin and Western Arabia Platform since the Mesozoic
This volume combines original data in various fields from the offshore Levant Basin and adjacent continental slopes and platforms. The first group of papers document the tectonic structures and sedimentological patterns associated with the development of the Levant Basin. They identify the successive rifting events from the Late Palaeozoic to the Early Cretaceous, followed by a moderate tectonic activity. The contribution of external factors like global sea-level and climate changes to the sedimentation processes during the Mid-Cretaceous is discussed in the second set of papers. The final group presents new kinematics and age constraints on the Late Cretaceous to Neogene tectonic phases and discusses the relationship of the structures with the closure of the Neo-Tethys and separation of the Arabia plate. This collection of research papers demonstrates new concepts on the opening and crustal thinning of the Levant Basin and gives updated interpretations of the latter tectonic structures of the Levant.